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authorMegan Woods <megan@flygfisk.com>2019-01-14 17:07:22 +1100
committerMegan Woods <megan@flygfisk.com>2019-01-14 17:07:22 +1100
commitecc8edb622f0f42d43f72ae388fa4c4274e51c5f (patch)
tree9091e5bf1fe54dde31ee786956139b0fb54b0ba3 /crypto
parentminor tweaks (diff)
downloadBouncyCastle.NET-ed25519-ecc8edb622f0f42d43f72ae388fa4c4274e51c5f.tar.xz
Initial CMP
Diffstat (limited to 'crypto')
-rw-r--r--crypto/src/asn1/cmp/CertificateConfirmationContent.cs44
-rw-r--r--crypto/src/asn1/cmp/CertificateConfirmationContentBuilder.cs71
-rw-r--r--crypto/src/asn1/cmp/CertificateStatus.cs54
-rw-r--r--crypto/src/asn1/cmp/CmpException.cs26
-rw-r--r--crypto/src/asn1/cmp/GeneralPKIMessage.cs49
-rw-r--r--crypto/src/asn1/cmp/ProtectedPkiMessage.cs107
-rw-r--r--crypto/src/asn1/cmp/ProtectedPkiMessageBuilder.cs174
-rw-r--r--crypto/src/asn1/crmf/AuthenticatorControl.cs33
-rw-r--r--crypto/src/asn1/crmf/CertificateRequestMessage.cs182
-rw-r--r--crypto/src/asn1/crmf/CertificateRequestMessageBuilder.cs261
-rw-r--r--crypto/src/asn1/crmf/Controls.cs9
-rw-r--r--crypto/src/asn1/crmf/CrmfException.cs26
-rw-r--r--crypto/src/asn1/crmf/EncryptedValueBuilder.cs53
-rw-r--r--crypto/src/asn1/crmf/OptionalValidity.cs6
-rw-r--r--crypto/src/asn1/crmf/PkiArchiveControl.cs68
-rw-r--r--crypto/src/asn1/crmf/ProofOfPossessionSigningKeyBuilder.cs90
-rw-r--r--crypto/src/asn1/crmf/RegTokenControl.cs32
-rw-r--r--crypto/src/cms/CMSSignedGenerator.cs337
-rw-r--r--crypto/src/crypto/IMacFactory.cs20
-rw-r--r--crypto/src/crypto/operators/Asn1Mac.cs410
-rw-r--r--crypto/src/crypto/operators/Asn1Signature.cs2
-rw-r--r--crypto/src/crypto/operators/GenericKey.cs41
-rw-r--r--crypto/src/util/Strings.cs25
-rw-r--r--crypto/test/src/cms/test/AllTests.cs3
24 files changed, 2122 insertions, 1 deletions
diff --git a/crypto/src/asn1/cmp/CertificateConfirmationContent.cs b/crypto/src/asn1/cmp/CertificateConfirmationContent.cs
new file mode 100644
index 000000000..9f2f3e038
--- /dev/null
+++ b/crypto/src/asn1/cmp/CertificateConfirmationContent.cs
@@ -0,0 +1,44 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Org.BouncyCastle.Cms;
+
+
+namespace Org.BouncyCastle.Asn1.Cmp
+{
+    public class CertificateConfirmationContent
+    {
+        private DefaultDigestAlgorithmIdentifierFinder digestAlgFinder;
+        private CertConfirmContent content;
+
+
+        public CertificateConfirmationContent(CertConfirmContent content)
+        {
+            this.content = content;
+        }
+
+        public CertificateConfirmationContent(CertConfirmContent content,
+            DefaultDigestAlgorithmIdentifierFinder digestAlgFinder)
+        {
+            this.content = content;
+            this.digestAlgFinder = digestAlgFinder;
+        }
+
+        public CertConfirmContent ToAsn1Structure()
+        {
+            return content;
+        }
+
+        public CertificateStatus[] GetStatusMessages()
+        {
+            CertStatus[] statusArray = content.ToCertStatusArray();
+            CertificateStatus[] ret = new CertificateStatus[statusArray.Length];
+            for (int i = 0; i != ret.Length; i++)
+            {
+                ret[i] = new CertificateStatus(digestAlgFinder, statusArray[i]);
+            }
+
+            return ret;
+        } 
+    }
+}
diff --git a/crypto/src/asn1/cmp/CertificateConfirmationContentBuilder.cs b/crypto/src/asn1/cmp/CertificateConfirmationContentBuilder.cs
new file mode 100644
index 000000000..b8c306f81
--- /dev/null
+++ b/crypto/src/asn1/cmp/CertificateConfirmationContentBuilder.cs
@@ -0,0 +1,71 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Text;
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Cms;
+using Org.BouncyCastle.Crypto.IO;
+using Org.BouncyCastle.Math;
+using Org.BouncyCastle.Security;
+using Org.BouncyCastle.X509;
+
+namespace Org.BouncyCastle.Asn1.Cmp
+{
+    public class CertificateConfirmationContentBuilder
+    {
+        DefaultSignatureAlgorithmIdentifierFinder sigAlgFinder = new DefaultSignatureAlgorithmIdentifierFinder();
+        private DefaultDigestAlgorithmIdentifierFinder digestAlgFinder;
+        private ArrayList acceptedCerts = new ArrayList();
+        private ArrayList acceptedReqIds = new ArrayList();
+
+        public CertificateConfirmationContentBuilder() : this(new DefaultDigestAlgorithmIdentifierFinder())
+        {
+
+        }
+    
+        public CertificateConfirmationContentBuilder(DefaultDigestAlgorithmIdentifierFinder digestAlgFinder)
+        {
+            this.digestAlgFinder = digestAlgFinder;
+        }
+
+        public CertificateConfirmationContentBuilder AddAcceptedCertificate(X509Certificate certHolder,
+            BigInteger certReqId)
+        {
+            acceptedCerts.Add(certHolder);
+            acceptedReqIds.Add(certReqId);
+            return this;
+        }
+
+        public CertificateConfirmationContent Build()
+        {
+            Asn1EncodableVector v = new Asn1EncodableVector();
+            for (int i = 0; i != acceptedCerts.Count; i++)
+            {
+                X509Certificate cert = (X509Certificate) acceptedCerts[i];
+                BigInteger reqId = (BigInteger) acceptedReqIds[i];
+
+
+                
+                AlgorithmIdentifier algorithmIdentifier =  sigAlgFinder.Find(cert.SigAlgName);
+
+                AlgorithmIdentifier digAlg = digestAlgFinder.find(algorithmIdentifier);
+                if (digAlg == null)
+                {
+                    throw new CmpException("cannot find algorithm for digest from signature");
+                }
+
+                DigestSink sink = new DigestSink(DigestUtilities.GetDigest(digAlg.Algorithm));
+
+                sink.Write(cert.GetEncoded());
+
+                byte[] dig = new byte[sink.Digest.GetDigestSize()];
+                sink.Digest.DoFinal(dig, 0);
+
+                v.Add(new CertStatus(dig,reqId));
+            }
+
+            return new CertificateConfirmationContent(CertConfirmContent.GetInstance(new DerSequence(v)),
+                digestAlgFinder);
+        }
+    }
+}
diff --git a/crypto/src/asn1/cmp/CertificateStatus.cs b/crypto/src/asn1/cmp/CertificateStatus.cs
new file mode 100644
index 000000000..d16c8e006
--- /dev/null
+++ b/crypto/src/asn1/cmp/CertificateStatus.cs
@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Cms;
+using Org.BouncyCastle.Crypto.IO;
+using Org.BouncyCastle.Math;
+using Org.BouncyCastle.Security;
+using Org.BouncyCastle.Utilities;
+using Org.BouncyCastle.X509;
+
+namespace Org.BouncyCastle.Asn1.Cmp
+{
+    public class CertificateStatus
+    {
+        private DefaultSignatureAlgorithmIdentifierFinder sigAlgFinder = new DefaultSignatureAlgorithmIdentifierFinder();
+        private DefaultDigestAlgorithmIdentifierFinder digestAlgFinder;
+        private CertStatus certStatus;
+
+        public CertificateStatus(DefaultDigestAlgorithmIdentifierFinder digestAlgFinder, CertStatus certStatus)
+        {
+            this.digestAlgFinder = digestAlgFinder;
+            this.certStatus = certStatus;
+        }
+
+         public PkiStatusInfo PkiStatusInfo
+         {
+             get { return certStatus.StatusInfo; }
+         }
+
+        public BigInteger CertRequestId
+        {
+            get { return certStatus.CertReqID.Value; }
+        }
+
+        public bool IsVerified(X509Certificate cert)
+        {
+
+            AlgorithmIdentifier digAlg = digestAlgFinder.find( sigAlgFinder.Find(cert.SigAlgName));
+            if (digAlg == null)
+            {
+                throw new CmpException("cannot find algorithm for digest from signature "+cert.SigAlgName);
+            }
+
+            DigestSink digestSink = new DigestSink(DigestUtilities.GetDigest(digAlg.Algorithm));
+
+            digestSink.Write(cert.GetEncoded());
+
+            byte[] digest = new byte[digestSink.Digest.GetDigestSize()];
+            digestSink.Digest.DoFinal(digest, 0);
+            return Arrays.ConstantTimeAreEqual(certStatus.CertHash.GetOctets(), digest);
+        }
+    }
+}
diff --git a/crypto/src/asn1/cmp/CmpException.cs b/crypto/src/asn1/cmp/CmpException.cs
new file mode 100644
index 000000000..0500b7d3e
--- /dev/null
+++ b/crypto/src/asn1/cmp/CmpException.cs
@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Runtime.Serialization;
+using System.Text;
+
+namespace Org.BouncyCastle.Asn1.Cmp
+{
+    public class CmpException : Exception
+    {
+        public CmpException()
+        {
+        }
+
+        public CmpException(string message) : base(message)
+        {
+        }
+
+        public CmpException(string message, Exception innerException) : base(message, innerException)
+        {
+        }
+
+        protected CmpException(SerializationInfo info, StreamingContext context) : base(info, context)
+        {
+        }
+    }
+}
diff --git a/crypto/src/asn1/cmp/GeneralPKIMessage.cs b/crypto/src/asn1/cmp/GeneralPKIMessage.cs
new file mode 100644
index 000000000..d91b8ef7e
--- /dev/null
+++ b/crypto/src/asn1/cmp/GeneralPKIMessage.cs
@@ -0,0 +1,49 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Org.BouncyCastle.Asn1.Cmp
+{
+    public class GeneralPKIMessage
+    {
+        private readonly PkiMessage pkiMessage;
+
+        private static PkiMessage parseBytes(byte[] encoding)
+        {
+            return PkiMessage.GetInstance(Asn1Object.FromByteArray(encoding));
+        }
+
+        public GeneralPKIMessage(PkiMessage pkiMessage)
+        {
+            this.pkiMessage = pkiMessage;
+        }
+
+        public GeneralPKIMessage(byte[] encoding) : this(parseBytes(encoding))
+        {
+        }
+
+        public PkiHeader Header {
+            get {
+                return pkiMessage.Header;
+            }
+        }
+
+        public PkiBody Body
+        {
+            get
+            {
+                return pkiMessage.Body;
+            }
+        }
+
+        public bool HasProtection
+        {
+            get { return pkiMessage.Protection != null; }
+        }
+
+        public PkiMessage ToAsn1Structure()
+        {
+            return pkiMessage;
+        }
+    }
+}
diff --git a/crypto/src/asn1/cmp/ProtectedPkiMessage.cs b/crypto/src/asn1/cmp/ProtectedPkiMessage.cs
new file mode 100644
index 000000000..c39f06ad0
--- /dev/null
+++ b/crypto/src/asn1/cmp/ProtectedPkiMessage.cs
@@ -0,0 +1,107 @@
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.X509;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Org.BouncyCastle.Asn1.Crmf;
+using Org.BouncyCastle.Asn1.Pkcs;
+using Org.BouncyCastle.Crypto;
+using Org.BouncyCastle.Crypto.Operators;
+using Org.BouncyCastle.Crypto.Paddings;
+using Org.BouncyCastle.Utilities;
+using Org.BouncyCastle.Utilities.Encoders;
+
+namespace Org.BouncyCastle.Asn1.Cmp
+{
+   
+    public class ProtectedPkiMessage
+    {
+        private PkiMessage pkiMessage;
+        
+
+        public ProtectedPkiMessage(GeneralPKIMessage pkiMessage)
+        {
+            
+            if (!pkiMessage.HasProtection)
+            {
+                throw new ArgumentException("pki message not protected");
+            }
+
+            this.pkiMessage = pkiMessage.ToAsn1Structure();
+        }
+           
+        public ProtectedPkiMessage(PkiMessage pkiMessage)
+        {
+            if (pkiMessage.Header.ProtectionAlg == null)
+            {
+                throw new ArgumentException("pki message not protected");
+            }
+
+            this.pkiMessage = pkiMessage;
+        }
+
+        public PkiHeader Header { get { return pkiMessage.Header; } }
+        public PkiBody Body { get { return pkiMessage.Body; } }
+
+        public PkiMessage ToAsn1Message() { return pkiMessage; }
+
+        public bool HasPasswordBasedMacProtected { get { return Header.ProtectionAlg.Algorithm.Equals(CmpObjectIdentifiers.passwordBasedMac); } }
+
+        public X509Certificate[] GetCertificates()
+        {
+            CmpCertificate[] certs = pkiMessage.GetExtraCerts();
+
+            if (certs == null)
+            {
+                return new X509Certificate[0];
+            }
+
+            X509Certificate[] res = new X509Certificate[certs.Length];
+           for (int t=0; t<certs.Length;t++)
+            {
+                res[t] = new X509Certificate(X509CertificateStructure.GetInstance(certs[t].GetEncoded()));
+            }
+
+            return res;
+        }
+        
+
+        
+
+        public bool Verify(IVerifierFactory verifier)
+        {
+           Asn1EncodableVector avec = new Asn1EncodableVector();
+           avec.Add(pkiMessage.Header);
+           avec.Add(pkiMessage.Body);
+           byte[] enc =   new DerSequence(avec).GetDerEncoded();
+
+           IStreamCalculator streamCalculator = verifier.CreateCalculator();
+
+           streamCalculator.Stream.Write(enc,0,enc.Length);
+           streamCalculator.Stream.Flush();
+           streamCalculator.Stream.Close();
+          
+           IVerifier result = (IVerifier) streamCalculator.GetResult();     
+           return result.IsVerified(pkiMessage.Protection.GetBytes());          
+        }
+
+
+        public bool Verify(Asn1MacFactoryProvider asn1Factory, byte[] password)
+        {
+            if (!CmpObjectIdentifiers.passwordBasedMac.Equals(pkiMessage.Header.ProtectionAlg.Algorithm))
+            {
+                throw new InvalidOperationException("protection algorithm is not mac based");
+            }
+
+            PbmParameter parameter = PbmParameter.GetInstance(pkiMessage.Header.ProtectionAlg.Parameters);
+
+            PkMacFactory macFactory = (PkMacFactory)asn1Factory.CreateMacFactory(parameter);
+                            
+            macFactory.Password = password;
+            MacVerifierFactory macVerifierFactory = new MacVerifierFactory(macFactory);
+
+            return Verify(macVerifierFactory);       
+        }
+
+    }
+}
diff --git a/crypto/src/asn1/cmp/ProtectedPkiMessageBuilder.cs b/crypto/src/asn1/cmp/ProtectedPkiMessageBuilder.cs
new file mode 100644
index 000000000..a6a98d753
--- /dev/null
+++ b/crypto/src/asn1/cmp/ProtectedPkiMessageBuilder.cs
@@ -0,0 +1,174 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+using Org.BouncyCastle.Asn1.Pkcs;
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Crypto;
+using Org.BouncyCastle.Crypto.IO;
+using Org.BouncyCastle.Crypto.Macs;
+using Org.BouncyCastle.Crypto.Operators;
+using Org.BouncyCastle.Crypto.Paddings;
+using Org.BouncyCastle.Security;
+using Org.BouncyCastle.Utilities.Encoders;
+using Org.BouncyCastle.X509;
+
+namespace Org.BouncyCastle.Asn1.Cmp
+{
+    public class ProtectedPkiMessageBuilder
+    {
+        private PkiHeaderBuilder hdrBuilBuilder;
+        private PkiBody body;
+        private ArrayList generalInfos = new ArrayList();
+        private ArrayList extraCerts = new ArrayList();
+
+        public ProtectedPkiMessageBuilder(GeneralName sender, GeneralName recipient) : this(PkiHeader.CMP_2000, sender,
+            recipient)
+        {
+        }
+
+
+        public ProtectedPkiMessageBuilder(int pvno, GeneralName sender, GeneralName recipient)
+        {
+            hdrBuilBuilder = new PkiHeaderBuilder(pvno, sender, recipient);
+        }
+
+        public ProtectedPkiMessageBuilder SetTransactionId(byte[] tid)
+        {
+            hdrBuilBuilder.SetTransactionID(tid);
+            return this;
+        }
+
+        public ProtectedPkiMessageBuilder SetFreeText(PkiFreeText freeText)
+        {
+            hdrBuilBuilder.SetFreeText(freeText);
+            return this;
+        }
+
+        public ProtectedPkiMessageBuilder AddGeneralInfo(InfoTypeAndValue genInfo)
+        {
+            generalInfos.Add(genInfo);
+            return this;
+        }
+
+        public ProtectedPkiMessageBuilder SetRecipKID(byte[] id)
+        {
+            hdrBuilBuilder.SetRecipKID(id);
+            return this;
+        }
+
+        public ProtectedPkiMessageBuilder SetRecipNonce(byte[] nonce)
+        {
+            hdrBuilBuilder.SetRecipNonce(nonce);
+            return this;
+        }
+
+        public ProtectedPkiMessageBuilder SetSenderKID(byte[] id)
+        {
+            hdrBuilBuilder.SetSenderKID(id);
+            return this;
+        }
+
+        public ProtectedPkiMessageBuilder SetSenderNonce(byte[] nonce)
+        {
+            hdrBuilBuilder.SetSenderNonce(nonce);
+            return this;
+        }
+
+        public ProtectedPkiMessageBuilder SetBody(PkiBody body)
+        {
+            this.body = body;
+            return this;
+        }
+
+        public ProtectedPkiMessageBuilder AddCmpCertificate(X509Certificate certificate)
+        {
+            extraCerts.Add(certificate);
+            return this;
+        }
+
+        public ProtectedPkiMessage Build(ISignatureFactory signatureFactory)
+        {
+            IStreamCalculator calculator = signatureFactory.CreateCalculator();
+
+            if (!(signatureFactory.AlgorithmDetails is AlgorithmIdentifier))
+            {
+                throw new ArgumentException("AlgorithmDetails is not AlgorithmIdentifier");
+            }
+
+            FinalizeHeader((AlgorithmIdentifier) signatureFactory.AlgorithmDetails);
+            PkiHeader header = hdrBuilBuilder.Build();
+            DerBitString protection = new DerBitString(CalculateSignature(calculator, header, body));
+            return FinalizeMessage(header, protection);
+        }
+
+        public ProtectedPkiMessage Build(IMacFactory factory)
+        {           
+                IStreamCalculator calculator = factory.CreateCalculator();                
+                FinalizeHeader((AlgorithmIdentifier)factory.AlgorithmDetails);
+                PkiHeader header = hdrBuilBuilder.Build();
+                DerBitString protection = new DerBitString(CalculateSignature(calculator, header, body));
+                return FinalizeMessage(header, protection);        
+        }
+
+
+        private void FinalizeHeader(AlgorithmIdentifier algorithmIdentifier)
+        {
+            hdrBuilBuilder.SetProtectionAlg(algorithmIdentifier);
+            if (generalInfos.Count > 0)
+            {
+                InfoTypeAndValue[] genInfos = new InfoTypeAndValue[generalInfos.Count];
+                for (int t = 0; t < genInfos.Length; t++)
+                {
+                    genInfos[t] = (InfoTypeAndValue) generalInfos[t];
+                }
+
+                hdrBuilBuilder.SetGeneralInfo(genInfos);
+            }
+        }
+
+        private ProtectedPkiMessage FinalizeMessage(PkiHeader header, DerBitString protection)
+        {
+            if (extraCerts.Count > 0)
+            {
+                CmpCertificate[] cmpCertificates = new CmpCertificate[extraCerts.Count];
+                for (int i = 0; i < cmpCertificates.Length; i++)
+                {
+                    byte[] cert = ((X509Certificate) extraCerts[i]).GetEncoded();
+                    cmpCertificates[i] = CmpCertificate.GetInstance((Asn1Sequence.FromByteArray(cert)));
+                }
+
+                return new ProtectedPkiMessage(new PkiMessage(header, body, protection, cmpCertificates));
+            }
+
+            return new ProtectedPkiMessage(new PkiMessage(header, body, protection));
+        }
+
+        private byte[] CalculateSignature(IStreamCalculator signer, PkiHeader header, PkiBody body)
+        {
+            Asn1EncodableVector avec = new Asn1EncodableVector();
+            avec.Add(header);
+            avec.Add(body);
+            byte[] encoded = new DerSequence(avec).GetEncoded();
+            signer.Stream.Write(encoded, 0, encoded.Length);
+            Object result = signer.GetResult();
+
+
+            if (result is DefaultSignatureResult)
+            {
+                return ((DefaultSignatureResult) result).Collect();
+            }
+            else if (result is DefaultMacAndDigestResult)
+            {
+                return ((DefaultMacAndDigestResult) result).MacResult;
+            }
+            else if (result is byte[])
+            {
+                return (byte[]) result;
+            }
+
+            throw new InvalidOperationException("result is not byte[] or DefaultSignatureResult");
+        }
+    }
+}
\ No newline at end of file
diff --git a/crypto/src/asn1/crmf/AuthenticatorControl.cs b/crypto/src/asn1/crmf/AuthenticatorControl.cs
new file mode 100644
index 000000000..060088b1f
--- /dev/null
+++ b/crypto/src/asn1/crmf/AuthenticatorControl.cs
@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Org.BouncyCastle.Asn1.Crmf
+{
+    public class AuthenticatorControl:IControl
+    {
+
+        private static readonly DerObjectIdentifier type = CrmfObjectIdentifiers.id_regCtrl_authenticator;
+
+        private readonly DerUtf8String token;
+
+        public AuthenticatorControl(DerUtf8String token)
+        {
+            this.token = token;
+        }
+
+        public AuthenticatorControl(String token)
+        {
+            this.token = new DerUtf8String(token);
+        }
+
+        public DerObjectIdentifier Type
+        {
+            get { return type; }
+        }
+
+        public Asn1Encodable Value {
+            get { return token; }
+        }
+    }
+}
diff --git a/crypto/src/asn1/crmf/CertificateRequestMessage.cs b/crypto/src/asn1/crmf/CertificateRequestMessage.cs
new file mode 100644
index 000000000..b80c2a3fd
--- /dev/null
+++ b/crypto/src/asn1/crmf/CertificateRequestMessage.cs
@@ -0,0 +1,182 @@
+using System;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+using System.Text;
+using Org.BouncyCastle.Crypto;
+using Org.BouncyCastle.Crypto.Operators;
+
+namespace Org.BouncyCastle.Asn1.Crmf
+{
+    public class CertificateRequestMessage
+    {
+        public static readonly int popRaVerified = Org.BouncyCastle.Asn1.Crmf.ProofOfPossession.TYPE_RA_VERIFIED;
+        public static readonly int popSigningKey = Org.BouncyCastle.Asn1.Crmf.ProofOfPossession.TYPE_SIGNING_KEY;
+        public static readonly int popKeyEncipherment = Org.BouncyCastle.Asn1.Crmf.ProofOfPossession.TYPE_KEY_ENCIPHERMENT;
+        public static readonly int popKeyAgreement = Org.BouncyCastle.Asn1.Crmf.ProofOfPossession.TYPE_KEY_AGREEMENT;
+
+        private readonly CertReqMsg certReqMsg;
+        private readonly Controls controls;
+
+        private static CertReqMsg ParseBytes(byte[] encoding)
+       
+        {        
+                return CertReqMsg.GetInstance(encoding);
+        }
+
+        public CertificateRequestMessage(CertReqMsg certReqMsg)
+        {
+            this.certReqMsg = certReqMsg;
+            this.controls = certReqMsg.CertReq.Controls;
+        }
+
+        public CertReqMsg ToAsn1Structure()
+        {
+            return certReqMsg; 
+        }
+
+        public CertTemplate GetCertTemplate()
+        {
+            return this.certReqMsg.CertReq.CertTemplate;
+        }
+
+        public bool HasControls
+        {
+            get { return controls != null; }
+        }
+
+
+        public bool HasControl(DerObjectIdentifier objectIdentifier)
+        {
+            return findControl(objectIdentifier) != null;
+        }
+
+        public IControl GetControl(DerObjectIdentifier type)
+        {
+            AttributeTypeAndValue found = findControl(type);
+            if (found != null)
+            {
+                if (found.Type.Equals(CrmfObjectIdentifiers.id_regCtrl_pkiArchiveOptions))
+                {
+                    return new PkiArchiveControl(PkiArchiveOptions.GetInstance(found.Value));
+                }
+
+                if (found.Type.Equals(CrmfObjectIdentifiers.id_regCtrl_regToken))
+                {
+                    return new RegTokenControl(DerUtf8String.GetInstance(found.Value));
+                }
+
+                if (found.Type.Equals(CrmfObjectIdentifiers.id_regCtrl_authenticator))
+                {
+                    return new AuthenticatorControl(DerUtf8String.GetInstance(found.Value));
+                }
+            }        
+            return null;
+        }
+
+
+
+
+        public AttributeTypeAndValue findControl(DerObjectIdentifier type)
+        {
+            if (controls == null)
+            {
+                return null;
+            }
+
+            AttributeTypeAndValue[] tAndV = controls.ToAttributeTypeAndValueArray();
+            AttributeTypeAndValue found = null;
+
+            for (int i = 0; i < tAndV.Length; i++)
+            {
+                if (tAndV[i].Type.Equals(type))
+                {
+                    found = tAndV[i];
+                    break;
+                }
+            }
+
+            return found;
+        }
+
+        public bool HasProofOfPossession
+        {
+            get { return certReqMsg.Popo != null; }
+        }
+
+        public int ProofOfPossession
+        {
+            get { return certReqMsg.Popo.Type; }
+        }
+
+        public bool HasSigningKeyProofOfPossessionWithPkMac
+        {
+            get
+            {
+                ProofOfPossession pop = certReqMsg.Popo;
+
+                if (pop.Type == popSigningKey)
+                {
+                    PopoSigningKey popoSign = PopoSigningKey.GetInstance(pop.Object);
+
+                    return popoSign.PoposkInput.PublicKeyMac != null;
+                }
+
+                return false;
+
+            }
+        }
+   
+        public bool IsValidSigningKeyPop(IVerifierFactoryProvider verifierProvider)
+        {
+            ProofOfPossession pop = certReqMsg.Popo;
+            if (pop.Type == popSigningKey)
+            {
+                PopoSigningKey popoSign = PopoSigningKey.GetInstance(pop.Object);
+                if (popoSign.PoposkInput != null && popoSign.PoposkInput.PublicKeyMac != null)
+                {
+                    throw new InvalidOperationException("verification requires password check");
+                }
+                return verifySignature(verifierProvider, popoSign);
+            }
+
+            throw new InvalidOperationException("not Signing Key type of proof of possession");
+        }
+
+
+
+        private bool verifySignature(IVerifierFactoryProvider verifierFactoryProvider, PopoSigningKey signKey)
+        {
+            IVerifierFactory verifer;
+            IStreamCalculator calculator;
+            try
+            {
+                verifer = verifierFactoryProvider.CreateVerifierFactory(signKey.AlgorithmIdentifier);
+                calculator = verifer.CreateCalculator();
+            }
+            catch (Exception ex)
+            {
+                throw new CrmfException("unable to create verifier: "+ex.Message, ex);
+            }
+
+            if (signKey.PoposkInput != null)
+            {
+                byte[] b = signKey.GetDerEncoded();
+              calculator.Stream.Write(b,0,b.Length);
+            }
+            else
+            {
+                byte[] b = certReqMsg.GetDerEncoded();
+                calculator.Stream.Write(b,0,b.Length);
+            }
+
+            DefaultVerifierResult result = (DefaultVerifierResult) calculator.GetResult();
+      
+            return result.IsVerified(signKey.Signature.GetBytes());
+        }
+
+        public byte[] GetEncoded()
+        {
+            return certReqMsg.GetEncoded();
+        }
+    }
+}
diff --git a/crypto/src/asn1/crmf/CertificateRequestMessageBuilder.cs b/crypto/src/asn1/crmf/CertificateRequestMessageBuilder.cs
new file mode 100644
index 000000000..df604f4f5
--- /dev/null
+++ b/crypto/src/asn1/crmf/CertificateRequestMessageBuilder.cs
@@ -0,0 +1,261 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Security.Cryptography.X509Certificates;
+using System.Text;
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Crypto;
+using Org.BouncyCastle.Crypto.Operators;
+using Org.BouncyCastle.Math;
+
+namespace Org.BouncyCastle.Asn1.Crmf
+{
+    public class CertificateRequestMessageBuilder
+    {
+        private readonly BigInteger _certReqId;
+        private X509ExtensionsGenerator _extGenerator;
+        private CertTemplateBuilder _templateBuilder;
+        private ArrayList _controls= new ArrayList();
+        private ISignatureFactory _popSigner;
+        private PkMacFactory _pkMacBuilder;
+        private char[] _password;
+        private GeneralName _sender;
+        private int _popoType = ProofOfPossession.TYPE_KEY_ENCIPHERMENT;
+        private PopoPrivKey _popoPrivKey;
+        private Asn1Null _popRaVerified;
+        private PKMacValue _agreeMac;
+
+        public CertificateRequestMessageBuilder(BigInteger certReqId)
+        {
+            this._certReqId = certReqId;
+            this._extGenerator = new X509ExtensionsGenerator();
+            this._templateBuilder = new CertTemplateBuilder();
+        }
+
+        public CertificateRequestMessageBuilder SetPublicKey(SubjectPublicKeyInfo publicKeyInfo)
+        {
+            if (publicKeyInfo != null)
+            {
+                _templateBuilder.SetPublicKey(publicKeyInfo);
+            }
+
+            return this;
+        }
+
+
+        public CertificateRequestMessageBuilder SetIssuer(X509Name issuer)
+        {
+            if (issuer != null)
+            {
+                _templateBuilder.SetIssuer(issuer);
+            }
+
+            return this;
+        }
+
+        public CertificateRequestMessageBuilder SetSubject(X509Name subject)
+        {
+            if (subject != null)
+            {
+                _templateBuilder.SetSubject(subject);
+            }
+
+            return this;
+        }
+
+        public CertificateRequestMessageBuilder SetSerialNumber(BigInteger serialNumber)
+        {
+            if (serialNumber != null)
+            {
+                _templateBuilder.SetSerialNumber(new DerInteger(serialNumber));
+            }
+
+            return this;
+        }
+
+        public CertificateRequestMessageBuilder SetValidity(Time notBefore, Time notAfter)
+        {
+            _templateBuilder.SetValidity(new OptionalValidity(notBefore, notAfter));
+            return this;                
+        }
+
+        public CertificateRequestMessageBuilder AddExtension(DerObjectIdentifier oid, bool critical,
+            Asn1Encodable value)
+        {
+           _extGenerator.AddExtension(oid,critical, value);
+            return this;
+        }
+
+        public CertificateRequestMessageBuilder AddExtension(DerObjectIdentifier oid, bool critical,
+            byte[] value)
+        {
+            _extGenerator.AddExtension(oid, critical, value);
+            return this;
+        }
+
+        public CertificateRequestMessageBuilder SetProofOfPossessionSignKeySigner(ISignatureFactory popoSignatureFactory)
+        {
+            if (_popoPrivKey != null || _popRaVerified != null || _agreeMac != null)
+            {
+                throw new InvalidOperationException("only one proof of possession is allowed.");
+            }
+
+            this._popoType = ProofOfPossession.TYPE_KEY_ENCIPHERMENT;
+            return this;
+        }
+
+        public CertificateRequestMessageBuilder SetProofOfPossessionSubsequentMessage(SubsequentMessage msg)
+        {
+            if (_popoPrivKey != null || _popRaVerified != null || _agreeMac != null)
+            {
+                throw new InvalidOperationException("only one proof of possession is allowed.");
+            }
+
+            this._popoType = ProofOfPossession.TYPE_KEY_ENCIPHERMENT;
+            this._popoPrivKey = new PopoPrivKey(msg);
+
+        
+            return this;
+        }
+
+
+        public CertificateRequestMessageBuilder SetProofOfPossessionSubsequentMessage(int type, SubsequentMessage msg)
+        {
+            if (_popoPrivKey != null || _popRaVerified != null || _agreeMac != null)
+            {
+                throw new InvalidOperationException("only one proof of possession is allowed.");
+            }
+
+            if (type != ProofOfPossession.TYPE_KEY_ENCIPHERMENT && type != ProofOfPossession.TYPE_KEY_AGREEMENT)
+            {
+                throw new ArgumentException("type must be ProofOfPossession.TYPE_KEY_ENCIPHERMENT || ProofOfPossession.TYPE_KEY_AGREEMENT");
+            }
+
+            this._popoType = type;
+            this._popoPrivKey = new PopoPrivKey(msg);
+            return this;        
+        }
+
+        public CertificateRequestMessageBuilder SetProofOfPossessionAgreeMac(PKMacValue macValue)
+        {
+            if (_popSigner != null || _popRaVerified != null || _popoPrivKey != null)
+            {
+                throw new InvalidOperationException("only one proof of possession allowed");
+            }
+
+            this._agreeMac = macValue;        
+            return this;
+        }
+
+        public CertificateRequestMessageBuilder SetProofOfPossessionRaVerified()
+        {
+            if (_popSigner != null || _popoPrivKey != null)
+            {
+                throw new InvalidOperationException("only one proof of possession allowed");
+            }
+
+            this._popRaVerified = DerNull.Instance;
+
+            return this;
+        }
+
+        public CertificateRequestMessageBuilder SetAuthInfoPKMAC(PkMacFactory pkmacFactory, char[] password)
+        {
+            this._pkMacBuilder = pkmacFactory;
+            this._password = password;
+
+            return this;
+        }
+
+        public CertificateRequestMessageBuilder SetAuthInfoSender(X509Name sender)
+        {
+            return SetAuthInfoSender(new GeneralName(sender));
+        }
+
+        public CertificateRequestMessageBuilder SetAuthInfoSender(GeneralName sender)
+        {
+            this._sender = sender;
+            return this;
+        }
+
+        public CertificateRequestMessage Build()
+        {
+            Asn1EncodableVector v = new Asn1EncodableVector();
+
+            v.Add(new DerInteger(this._certReqId));
+
+            if (!this._extGenerator.IsEmpty)
+            {
+               this._templateBuilder.SetExtensions(_extGenerator.Generate());
+            }
+
+            v.Add(_templateBuilder.Build());
+
+            if (_controls.Count>0)
+            {
+                Asn1EncodableVector controlV = new Asn1EncodableVector();
+
+                foreach (Object item  in _controls)
+                {
+                    IControl control = (IControl) item;
+                    controlV.Add(new AttributeTypeAndValue(control.Type, control.Value));
+                }
+                    
+                v.Add(new DerSequence(controlV));
+            }
+
+            CertRequest request = CertRequest.GetInstance(new DerSequence(v));
+
+            v = new Asn1EncodableVector();
+
+            v.Add(request);
+
+            if (_popSigner != null)
+            {
+                CertTemplate template = request.CertTemplate;
+
+                if (template.Subject == null || template.PublicKey == null)
+                {
+                    SubjectPublicKeyInfo pubKeyInfo = request.CertTemplate.PublicKey;
+                  
+                    ProofOfPossessionSigningKeyBuilder builder = new ProofOfPossessionSigningKeyBuilder(pubKeyInfo);
+
+                    if (_sender != null)
+                    {
+                        builder.setSender(_sender);
+                    }
+                    else
+                    {
+                       // PkMa pkmacGenerator = new PKMACValueGenerator(_pkmacBuilder);
+
+                        builder.setPublicKeyMac(_pkMacBuilder, _password);
+                    }
+
+                    v.Add(new ProofOfPossession(builder.build(_popSigner)));
+                }
+                else
+                {
+                    ProofOfPossessionSigningKeyBuilder builder = new ProofOfPossessionSigningKeyBuilder(request);
+
+                    v.Add(new ProofOfPossession(builder.build(_popSigner)));
+                }
+            }
+            else if (_popoPrivKey != null)
+            {
+                v.Add(new ProofOfPossession(_popoType, _popoPrivKey));
+            }
+            else if (_agreeMac != null)
+            {
+                v.Add(new ProofOfPossession(ProofOfPossession.TYPE_KEY_AGREEMENT,
+                        PopoPrivKey.GetInstance(new DerTaggedObject(false, PopoPrivKey.agreeMAC, _agreeMac),true )));
+
+            }
+            else if (_popRaVerified != null)
+            {
+                v.Add(new ProofOfPossession());
+            }
+
+            return new CertificateRequestMessage(CertReqMsg.GetInstance(new DerSequence(v)));
+        }
+    }
+}
diff --git a/crypto/src/asn1/crmf/Controls.cs b/crypto/src/asn1/crmf/Controls.cs
index e8b9f3db0..8f986168c 100644
--- a/crypto/src/asn1/crmf/Controls.cs
+++ b/crypto/src/asn1/crmf/Controls.cs
@@ -4,6 +4,15 @@ using Org.BouncyCastle.Utilities;
 
 namespace Org.BouncyCastle.Asn1.Crmf
 {
+
+    public interface IControl
+    {
+        DerObjectIdentifier Type { get; }
+
+        Asn1Encodable Value { get; }
+    }
+
+
     public class Controls
         : Asn1Encodable
     {
diff --git a/crypto/src/asn1/crmf/CrmfException.cs b/crypto/src/asn1/crmf/CrmfException.cs
new file mode 100644
index 000000000..7043ccd73
--- /dev/null
+++ b/crypto/src/asn1/crmf/CrmfException.cs
@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Runtime.Serialization;
+using System.Text;
+
+namespace Org.BouncyCastle.Asn1.Crmf
+{
+    public class CrmfException : Exception
+    {
+        public CrmfException()
+        {
+        }
+
+        public CrmfException(string message) : base(message)
+        {
+        }
+
+        public CrmfException(string message, Exception innerException) : base(message, innerException)
+        {
+        }
+
+        protected CrmfException(SerializationInfo info, StreamingContext context) : base(info, context)
+        {
+        }
+    }
+}
diff --git a/crypto/src/asn1/crmf/EncryptedValueBuilder.cs b/crypto/src/asn1/crmf/EncryptedValueBuilder.cs
new file mode 100644
index 000000000..4b57156d4
--- /dev/null
+++ b/crypto/src/asn1/crmf/EncryptedValueBuilder.cs
@@ -0,0 +1,53 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Text;
+using Org.BouncyCastle.Asn1.Nist;
+using Org.BouncyCastle.Crypto;
+using Org.BouncyCastle.Crypto.Engines;
+using Org.BouncyCastle.Crypto.Parameters;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Asn1.Crmf
+{
+
+//    public delegate IBlockCipher BlockCipherCreator(ICipherParameters);
+//
+//    public class EncryptedValueBuilder
+//    {
+//        private readonly IBlockCipher _cipher;
+//        private static readonly IDictionary algToDelegate = Platform.CreateHashtable();
+//        static EncryptedValueBuilder()
+//        {
+//            algToDelegate[NistObjectIdentifiers.IdAes128Cbc] = new CipherCreator()
+//                {Creator = delegate(ICipherParameters param) { return new AesEngine(); }};
+//
+//        }
+//
+//
+//        public EncryptedValueBuilder(DerObjectIdentifier alg)
+//        {
+//            
+//        }
+//
+//
+//        private static IBlockCipher AesCBC(ICipherParameters param)
+//        {
+//            if (param is ParametersWithIV ivParam) {
+//                return new 
+//            }
+//            else
+//            {
+//                throw new ArgumentException("expecting param to be ParametersWithIv");
+//            }
+//        }
+//
+//
+//
+//        private class CipherCreator
+//        {
+//            public BlockCipherCreator Creator { get; set; }
+//        }
+//
+//    }
+}
diff --git a/crypto/src/asn1/crmf/OptionalValidity.cs b/crypto/src/asn1/crmf/OptionalValidity.cs
index d1a0f7ffb..46fd1f860 100644
--- a/crypto/src/asn1/crmf/OptionalValidity.cs
+++ b/crypto/src/asn1/crmf/OptionalValidity.cs
@@ -33,6 +33,12 @@ namespace Org.BouncyCastle.Asn1.Crmf
             return new OptionalValidity(Asn1Sequence.GetInstance(obj));
         }
 
+        public OptionalValidity(Time notBefore, Time notAfter)
+        {
+            this.notBefore = notBefore;
+            this.notAfter = notAfter;
+        }
+
         public virtual Time NotBefore
         {
             get { return notBefore; }
diff --git a/crypto/src/asn1/crmf/PkiArchiveControl.cs b/crypto/src/asn1/crmf/PkiArchiveControl.cs
new file mode 100644
index 000000000..0290fdfe6
--- /dev/null
+++ b/crypto/src/asn1/crmf/PkiArchiveControl.cs
@@ -0,0 +1,68 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Org.BouncyCastle.Asn1.Cms;
+using Org.BouncyCastle.Cms;
+
+namespace Org.BouncyCastle.Asn1.Crmf
+{
+    public class PkiArchiveControl:IControl
+    {
+        public static readonly int encryptedPrivKey = PkiArchiveOptions.encryptedPrivKey;
+        public static readonly int keyGenParameters = PkiArchiveOptions.keyGenParameters;
+        public static readonly int archiveRemGenPrivKey = PkiArchiveOptions.archiveRemGenPrivKey;
+
+        private static readonly DerObjectIdentifier type = CrmfObjectIdentifiers.id_regCtrl_pkiArchiveOptions;
+
+        private readonly PkiArchiveOptions pkiArchiveOptions;
+
+        public PkiArchiveControl(PkiArchiveOptions pkiArchiveOptions)
+        {
+            this.pkiArchiveOptions = pkiArchiveOptions;
+        }
+
+        public DerObjectIdentifier Type
+        {
+            get { return type; }
+        }
+
+        public Asn1Encodable Value
+        {
+            get { return pkiArchiveOptions; }
+        }
+
+        public int ArchiveType
+        {
+            get { return pkiArchiveOptions.Type; }
+        }
+
+        public bool EnvelopedData
+        {
+            get
+            {
+                EncryptedKey encKey = EncryptedKey.GetInstance(pkiArchiveOptions.Value);
+                return !encKey.IsEncryptedValue;
+            }
+        }
+
+        public CmsEnvelopedData GetEnvelopedData()
+        {
+            try
+            {
+                EncryptedKey encKey = EncryptedKey.GetInstance(pkiArchiveOptions.Value);
+                EnvelopedData data = Org.BouncyCastle.Asn1.Cms.EnvelopedData.GetInstance(encKey.Value);
+
+                return new CmsEnvelopedData(new ContentInfo(CmsObjectIdentifiers.EnvelopedData, data));
+            }
+            catch (CmsException e)
+            {
+                throw new CrmfException("CMS parsing error: " + e.Message, e);
+            }
+            catch (Exception e)
+            {
+                throw  new CrmfException("CRMF parsing error: "+e.Message, e);
+            }
+        }
+
+    }
+}
diff --git a/crypto/src/asn1/crmf/ProofOfPossessionSigningKeyBuilder.cs b/crypto/src/asn1/crmf/ProofOfPossessionSigningKeyBuilder.cs
new file mode 100644
index 000000000..cbaf834a1
--- /dev/null
+++ b/crypto/src/asn1/crmf/ProofOfPossessionSigningKeyBuilder.cs
@@ -0,0 +1,90 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Crypto;
+using Org.BouncyCastle.Crypto.Operators;
+using Org.BouncyCastle.Crypto.Paddings;
+
+namespace Org.BouncyCastle.Asn1.Crmf
+{
+    public class ProofOfPossessionSigningKeyBuilder
+    {
+        private CertRequest _certRequest;
+        private SubjectPublicKeyInfo _pubKeyInfo;
+        private GeneralName _name;
+        private PKMacValue _publicKeyMAC;
+
+        public ProofOfPossessionSigningKeyBuilder(CertRequest certRequest)
+        {
+            this._certRequest = certRequest;
+        }
+
+
+        public ProofOfPossessionSigningKeyBuilder(SubjectPublicKeyInfo pubKeyInfo)
+        {
+            this._pubKeyInfo = pubKeyInfo;
+        }
+
+        public ProofOfPossessionSigningKeyBuilder setSender(GeneralName name)
+        {
+            this._name = name;
+
+            return this;
+        }
+
+        public ProofOfPossessionSigningKeyBuilder setPublicKeyMac(PkMacFactory generator, char[] password)
+        {
+            IStreamCalculator calc = generator.CreateCalculator();
+            byte[] d = _pubKeyInfo.GetDerEncoded();
+            calc.Stream.Write(d, 0, d.Length);
+            calc.Stream.Flush();
+            calc.Stream.Close();
+
+
+            this._publicKeyMAC = new PKMacValue(
+                (AlgorithmIdentifier)generator.AlgorithmDetails,
+                new DerBitString(((DefaultMacAndDigestResult)calc.GetResult()).MacResult));
+
+            return this;
+        }
+
+        public PopoSigningKey build(ISignatureFactory signer)
+        {
+            if (_name != null && _publicKeyMAC != null)
+            {
+                throw new InvalidOperationException("name and publicKeyMAC cannot both be set.");
+            }
+
+            PopoSigningKeyInput popo;
+            byte[] b;
+            IStreamCalculator calc = signer.CreateCalculator();
+            if (_certRequest != null)
+            {
+                popo = null;
+                b = _certRequest.GetDerEncoded();
+                calc.Stream.Write(b, 0, b.Length);
+
+            }
+            else if (_name != null)
+            {
+                popo = new PopoSigningKeyInput(_name, _pubKeyInfo);
+                b = popo.GetDerEncoded();
+                calc.Stream.Write(b, 0, b.Length);
+            }
+            else
+            {
+                popo = new PopoSigningKeyInput(_publicKeyMAC, _pubKeyInfo);
+                b = popo.GetDerEncoded();
+                calc.Stream.Write(b, 0, b.Length);
+            }
+
+            calc.Stream.Flush();
+            calc.Stream.Close();
+            DefaultSignatureResult res = (DefaultSignatureResult)calc.GetResult();
+            return new PopoSigningKey(popo, (AlgorithmIdentifier)signer.AlgorithmDetails, new DerBitString(res.Collect()));
+        }
+
+
+    }
+}
diff --git a/crypto/src/asn1/crmf/RegTokenControl.cs b/crypto/src/asn1/crmf/RegTokenControl.cs
new file mode 100644
index 000000000..77bf32557
--- /dev/null
+++ b/crypto/src/asn1/crmf/RegTokenControl.cs
@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Org.BouncyCastle.Asn1.Crmf
+{
+    public class RegTokenControl:IControl
+    {
+        private static readonly DerObjectIdentifier type = CrmfObjectIdentifiers.id_regCtrl_regToken;
+    
+        private readonly DerUtf8String token;
+
+        public RegTokenControl(DerUtf8String token)
+        {
+            this.token = token;
+        }
+
+        public RegTokenControl(String token)
+        {
+            this.token = new DerUtf8String(token);
+        }
+
+        public DerObjectIdentifier Type
+        {
+            get { return type; }
+        }
+        public Asn1Encodable Value
+        {
+            get { return token; }
+        }
+    }
+}
diff --git a/crypto/src/cms/CMSSignedGenerator.cs b/crypto/src/cms/CMSSignedGenerator.cs
index 249d70499..1ac9f39b7 100644
--- a/crypto/src/cms/CMSSignedGenerator.cs
+++ b/crypto/src/cms/CMSSignedGenerator.cs
@@ -3,11 +3,16 @@ using System.Collections;
 using System.IO;
 
 using Org.BouncyCastle.Asn1;
+using Org.BouncyCastle.Asn1.BC;
+using Org.BouncyCastle.Asn1.Bsi;
 using Org.BouncyCastle.Asn1.Cms;
 using Org.BouncyCastle.Asn1.CryptoPro;
+using Org.BouncyCastle.Asn1.Eac;
+using Org.BouncyCastle.Asn1.GM;
 using Org.BouncyCastle.Asn1.Nist;
 using Org.BouncyCastle.Asn1.Oiw;
 using Org.BouncyCastle.Asn1.Pkcs;
+using Org.BouncyCastle.Asn1.Rosstandart;
 using Org.BouncyCastle.Asn1.TeleTrust;
 using Org.BouncyCastle.Asn1.X509;
 using Org.BouncyCastle.Asn1.X9;
@@ -21,6 +26,338 @@ using Org.BouncyCastle.X509.Store;
 
 namespace Org.BouncyCastle.Cms
 {
+
+        public class DefaultSignatureAlgorithmIdentifierFinder
+        {
+            private static readonly IDictionary algorithms = Platform.CreateHashtable();
+            private static readonly ISet noParams = new HashSet();
+            private static readonly IDictionary _params = Platform.CreateHashtable();
+            private static readonly ISet pkcs15RsaEncryption = new HashSet();
+            private static readonly IDictionary digestOids = Platform.CreateHashtable();
+
+            private static readonly IDictionary digestBuilders = Platform.CreateHashtable();
+
+
+            private static readonly DerObjectIdentifier ENCRYPTION_RSA = PkcsObjectIdentifiers.RsaEncryption;
+            private static readonly DerObjectIdentifier ENCRYPTION_DSA = X9ObjectIdentifiers.IdDsaWithSha1;
+            private static readonly DerObjectIdentifier ENCRYPTION_ECDSA = X9ObjectIdentifiers.ECDsaWithSha1;
+            private static readonly DerObjectIdentifier ENCRYPTION_RSA_PSS = PkcsObjectIdentifiers.IdRsassaPss;
+            private static readonly DerObjectIdentifier ENCRYPTION_GOST3410 = CryptoProObjectIdentifiers.GostR3410x94;
+            private static readonly DerObjectIdentifier ENCRYPTION_ECGOST3410 = CryptoProObjectIdentifiers.GostR3410x2001;
+            private static readonly DerObjectIdentifier ENCRYPTION_ECGOST3410_2012_256 = RosstandartObjectIdentifiers.id_tc26_gost_3410_12_256;
+            private static readonly DerObjectIdentifier ENCRYPTION_ECGOST3410_2012_512 = RosstandartObjectIdentifiers.id_tc26_gost_3410_12_512;
+
+
+            static DefaultSignatureAlgorithmIdentifierFinder()
+            {
+                algorithms["MD2WITHRSAENCRYPTION"] = PkcsObjectIdentifiers.MD2WithRsaEncryption;
+                algorithms["MD2WITHRSA"] = PkcsObjectIdentifiers.MD2WithRsaEncryption;
+                algorithms["MD5WITHRSAENCRYPTION"] = PkcsObjectIdentifiers.MD5WithRsaEncryption;
+                algorithms["MD5WITHRSA"] = PkcsObjectIdentifiers.MD5WithRsaEncryption;
+                algorithms["SHA1WITHRSAENCRYPTION"] = PkcsObjectIdentifiers.Sha1WithRsaEncryption;
+                algorithms["SHA1WITHRSA"] = PkcsObjectIdentifiers.Sha1WithRsaEncryption;
+                algorithms["SHA-1WITHRSA"] = PkcsObjectIdentifiers.Sha1WithRsaEncryption;
+                algorithms["SHA224WITHRSAENCRYPTION"] = PkcsObjectIdentifiers.Sha224WithRsaEncryption;
+                algorithms["SHA224WITHRSA"] = PkcsObjectIdentifiers.Sha224WithRsaEncryption;
+                algorithms["SHA256WITHRSAENCRYPTION"] = PkcsObjectIdentifiers.Sha256WithRsaEncryption;
+                algorithms["SHA256WITHRSA"] = PkcsObjectIdentifiers.Sha256WithRsaEncryption;
+                algorithms["SHA384WITHRSAENCRYPTION"] = PkcsObjectIdentifiers.Sha384WithRsaEncryption;
+                algorithms["SHA384WITHRSA"] = PkcsObjectIdentifiers.Sha384WithRsaEncryption;
+                algorithms["SHA512WITHRSAENCRYPTION"] = PkcsObjectIdentifiers.Sha512WithRsaEncryption;
+                algorithms["SHA512WITHRSA"] = PkcsObjectIdentifiers.Sha512WithRsaEncryption;
+                algorithms["SHA1WITHRSAANDMGF1"] = PkcsObjectIdentifiers.IdRsassaPss;
+                algorithms["SHA224WITHRSAANDMGF1"] = PkcsObjectIdentifiers.IdRsassaPss;
+                algorithms["SHA256WITHRSAANDMGF1"] = PkcsObjectIdentifiers.IdRsassaPss;
+                algorithms["SHA384WITHRSAANDMGF1"] = PkcsObjectIdentifiers.IdRsassaPss;
+                algorithms["SHA512WITHRSAANDMGF1"] = PkcsObjectIdentifiers.IdRsassaPss;
+                algorithms["SHA3-224WITHRSAANDMGF1"] = PkcsObjectIdentifiers.IdRsassaPss;
+                algorithms["SHA3-256WITHRSAANDMGF1"] = PkcsObjectIdentifiers.IdRsassaPss;
+                algorithms["SHA3-384WITHRSAANDMGF1"] = PkcsObjectIdentifiers.IdRsassaPss;
+                algorithms["SHA3-512WITHRSAANDMGF1"] = PkcsObjectIdentifiers.IdRsassaPss;
+                algorithms["RIPEMD160WITHRSAENCRYPTION"] = TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD160;
+                algorithms["RIPEMD160WITHRSA"] = TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD160;
+                algorithms["RIPEMD128WITHRSAENCRYPTION"] = TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD128;
+                algorithms["RIPEMD128WITHRSA"] = TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD128;
+                algorithms["RIPEMD256WITHRSAENCRYPTION"] = TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD256;
+                algorithms["RIPEMD256WITHRSA"] = TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD256;
+                algorithms["SHA1WITHDSA"] = X9ObjectIdentifiers.IdDsaWithSha1;
+                algorithms["SHA-1WITHDSA"] = X9ObjectIdentifiers.IdDsaWithSha1;
+                algorithms["DSAWITHSHA1"] = X9ObjectIdentifiers.IdDsaWithSha1;
+                algorithms["SHA224WITHDSA"] = NistObjectIdentifiers.DsaWithSha224;
+                algorithms["SHA256WITHDSA"] = NistObjectIdentifiers.DsaWithSha256;
+                algorithms["SHA384WITHDSA"] = NistObjectIdentifiers.DsaWithSha384;
+                algorithms["SHA512WITHDSA"] = NistObjectIdentifiers.DsaWithSha512;
+                algorithms["SHA3-224WITHDSA"] = NistObjectIdentifiers.IdDsaWithSha3_224; //  id_dsa_with_sha3_224;
+                algorithms["SHA3-256WITHDSA"] = NistObjectIdentifiers.IdDsaWithSha3_256; //id_dsa_with_sha3_256;
+                algorithms["SHA3-384WITHDSA"] = NistObjectIdentifiers.IdDsaWithSha3_384; //id_dsa_with_sha3_384;
+                algorithms["SHA3-512WITHDSA"] = NistObjectIdentifiers.IdDsaWithSha3_512; //id_dsa_with_sha3_512;
+                algorithms["SHA3-224WITHECDSA"] = NistObjectIdentifiers.IdEcdsaWithSha3_224;//   id_ecdsa_with_sha3_224;
+                algorithms["SHA3-256WITHECDSA"] = NistObjectIdentifiers.IdEcdsaWithSha3_256;//id_ecdsa_with_sha3_256;
+                algorithms["SHA3-384WITHECDSA"] = NistObjectIdentifiers.IdEcdsaWithSha3_384;//id_ecdsa_with_sha3_384;
+                algorithms["SHA3-512WITHECDSA"] = NistObjectIdentifiers.IdEcdsaWithSha3_512;//id_ecdsa_with_sha3_512;
+                algorithms["SHA3-224WITHRSA"] = NistObjectIdentifiers.IdRsassaPkcs1V15WithSha3_224;//   id_rsassa_pkcs1_v1_5_with_sha3_224;
+                algorithms["SHA3-256WITHRSA"] = NistObjectIdentifiers.IdRsassaPkcs1V15WithSha3_256;// id_rsassa_pkcs1_v1_5_with_sha3_256;
+                algorithms["SHA3-384WITHRSA"] = NistObjectIdentifiers.IdRsassaPkcs1V15WithSha3_384;// id_rsassa_pkcs1_v1_5_with_sha3_384;
+                algorithms["SHA3-512WITHRSA"] = NistObjectIdentifiers.IdRsassaPkcs1V15WithSha3_512;// id_rsassa_pkcs1_v1_5_with_sha3_512;
+                algorithms["SHA3-224WITHRSAENCRYPTION"] = NistObjectIdentifiers.IdRsassaPkcs1V15WithSha3_224;// id_rsassa_pkcs1_v1_5_with_sha3_224;
+                algorithms["SHA3-256WITHRSAENCRYPTION"] = NistObjectIdentifiers.IdRsassaPkcs1V15WithSha3_256;// id_rsassa_pkcs1_v1_5_with_sha3_256;
+                algorithms["SHA3-384WITHRSAENCRYPTION"] = NistObjectIdentifiers.IdRsassaPkcs1V15WithSha3_384; //id_rsassa_pkcs1_v1_5_with_sha3_384;
+                algorithms["SHA3-512WITHRSAENCRYPTION"] = NistObjectIdentifiers.IdRsassaPkcs1V15WithSha3_512; // id_rsassa_pkcs1_v1_5_with_sha3_512;
+                algorithms["SHA1WITHECDSA"] = X9ObjectIdentifiers.ECDsaWithSha1;
+                algorithms["ECDSAWITHSHA1"] = X9ObjectIdentifiers.ECDsaWithSha1;
+                algorithms["SHA224WITHECDSA"] = X9ObjectIdentifiers.ECDsaWithSha224;
+                algorithms["SHA256WITHECDSA"] = X9ObjectIdentifiers.ECDsaWithSha224;
+                algorithms["SHA384WITHECDSA"] = X9ObjectIdentifiers.ECDsaWithSha384;
+                algorithms["SHA512WITHECDSA"] = X9ObjectIdentifiers.ECDsaWithSha256;
+
+
+                algorithms["GOST3411WITHGOST3410"] = CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x94;
+                algorithms["GOST3411WITHGOST3410-94"] = CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x94;
+                algorithms["GOST3411WITHECGOST3410"] = CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x2001;
+                algorithms["GOST3411WITHECGOST3410-2001"] = CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x2001;
+                algorithms["GOST3411WITHGOST3410-2001"] = CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x2001;
+                algorithms["GOST3411WITHECGOST3410-2012-256"] = RosstandartObjectIdentifiers.id_tc26_signwithdigest_gost_3410_12_256;
+                algorithms["GOST3411WITHECGOST3410-2012-512"] = RosstandartObjectIdentifiers.id_tc26_signwithdigest_gost_3410_12_512;
+                algorithms["GOST3411WITHGOST3410-2012-256"] = RosstandartObjectIdentifiers.id_tc26_signwithdigest_gost_3410_12_256;
+                algorithms["GOST3411WITHGOST3410-2012-512"] = RosstandartObjectIdentifiers.id_tc26_signwithdigest_gost_3410_12_512;
+                algorithms["GOST3411-2012-256WITHECGOST3410-2012-256"] = RosstandartObjectIdentifiers.id_tc26_signwithdigest_gost_3410_12_256;
+                algorithms["GOST3411-2012-512WITHECGOST3410-2012-512"] = RosstandartObjectIdentifiers.id_tc26_signwithdigest_gost_3410_12_512;
+                algorithms["GOST3411-2012-256WITHGOST3410-2012-256"] = RosstandartObjectIdentifiers.id_tc26_signwithdigest_gost_3410_12_256;
+                algorithms["GOST3411-2012-512WITHGOST3410-2012-512"] = RosstandartObjectIdentifiers.id_tc26_signwithdigest_gost_3410_12_512;
+                algorithms["SHA1WITHPLAIN-ECDSA"] = BsiObjectIdentifiers.ecdsa_plain_SHA1;
+                algorithms["SHA224WITHPLAIN-ECDSA"] = BsiObjectIdentifiers.ecdsa_plain_SHA224;
+                algorithms["SHA256WITHPLAIN-ECDSA"] = BsiObjectIdentifiers.ecdsa_plain_SHA256;
+                algorithms["SHA384WITHPLAIN-ECDSA"] = BsiObjectIdentifiers.ecdsa_plain_SHA384;
+                algorithms["SHA512WITHPLAIN-ECDSA"] = BsiObjectIdentifiers.ecdsa_plain_SHA512;
+                algorithms["RIPEMD160WITHPLAIN-ECDSA"] = BsiObjectIdentifiers.ecdsa_plain_RIPEMD160;
+                algorithms["SHA1WITHCVC-ECDSA"] = EacObjectIdentifiers.id_TA_ECDSA_SHA_1;
+                algorithms["SHA224WITHCVC-ECDSA"] = EacObjectIdentifiers.id_TA_ECDSA_SHA_224;
+                algorithms["SHA256WITHCVC-ECDSA"] = EacObjectIdentifiers.id_TA_ECDSA_SHA_256;
+                algorithms["SHA384WITHCVC-ECDSA"] = EacObjectIdentifiers.id_TA_ECDSA_SHA_384;
+                algorithms["SHA512WITHCVC-ECDSA"] = EacObjectIdentifiers.id_TA_ECDSA_SHA_512;
+                algorithms["SHA3-512WITHSPHINCS256"] = BCObjectIdentifiers.sphincs256_with_SHA3_512;
+                algorithms["SHA512WITHSPHINCS256"] = BCObjectIdentifiers.sphincs256_with_SHA512;
+                algorithms["SM3WITHSM2"] = GMObjectIdentifiers.sm2sign_with_sm3;
+
+                algorithms["SHA256WITHXMSS"] = BCObjectIdentifiers.xmss_with_SHA256;
+                algorithms["SHA512WITHXMSS"] = BCObjectIdentifiers.xmss_with_SHA512;
+                algorithms["SHAKE128WITHXMSS"] = BCObjectIdentifiers.xmss_with_SHAKE128;
+                algorithms["SHAKE256WITHXMSS"] = BCObjectIdentifiers.xmss_with_SHAKE256;
+
+                algorithms["SHA256WITHXMSSMT"] = BCObjectIdentifiers.xmss_mt_with_SHA256;
+                algorithms["SHA512WITHXMSSMT"] = BCObjectIdentifiers.xmss_mt_with_SHA512;
+                algorithms["SHAKE128WITHXMSSMT"] = BCObjectIdentifiers.xmss_mt_with_SHAKE128;
+                algorithms["SHAKE256WITHXMSSMT"] = BCObjectIdentifiers.xmss_mt_with_SHAKE256;
+
+
+                //
+                // According to RFC 3279, the ASN.1 encoding SHALL (id-dsa-with-sha1) or MUST (ecdsa-with-SHA*) omit the parameters field.
+                // The parameters field SHALL be NULL for RSA based signature algorithms.
+                //
+                noParams.Add((object)X9ObjectIdentifiers.ECDsaWithSha1);
+                noParams.Add((object)X9ObjectIdentifiers.ECDsaWithSha224);
+                noParams.Add((object)X9ObjectIdentifiers.ECDsaWithSha256);
+                noParams.Add((object)X9ObjectIdentifiers.ECDsaWithSha384);
+                noParams.Add((object)X9ObjectIdentifiers.ECDsaWithSha512);
+                noParams.Add((object)X9ObjectIdentifiers.IdDsaWithSha1);
+                noParams.Add((object)NistObjectIdentifiers.DsaWithSha224);
+                noParams.Add((object)NistObjectIdentifiers.DsaWithSha256);
+                noParams.Add((object)NistObjectIdentifiers.DsaWithSha384);
+                noParams.Add((object)NistObjectIdentifiers.DsaWithSha512);
+                noParams.Add((object)NistObjectIdentifiers.IdDsaWithSha3_224);
+                noParams.Add((object)NistObjectIdentifiers.IdDsaWithSha3_256);
+                noParams.Add((object)NistObjectIdentifiers.IdDsaWithSha3_384);
+                noParams.Add((object)NistObjectIdentifiers.IdDsaWithSha3_512);
+                noParams.Add((object)NistObjectIdentifiers.IdEcdsaWithSha3_224);
+                noParams.Add((object)NistObjectIdentifiers.IdEcdsaWithSha3_256);
+                noParams.Add((object)NistObjectIdentifiers.IdEcdsaWithSha3_384);
+                noParams.Add((object)NistObjectIdentifiers.IdEcdsaWithSha3_512);
+
+
+                //
+                // RFC 4491
+                //
+                noParams.Add((object)CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x94);
+                noParams.Add((object)CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x2001);
+                noParams.Add((object)RosstandartObjectIdentifiers.id_tc26_signwithdigest_gost_3410_12_256);
+                noParams.Add((object)RosstandartObjectIdentifiers.id_tc26_signwithdigest_gost_3410_12_512);
+
+                //
+                // SPHINCS-256
+                //
+                noParams.Add((object)BCObjectIdentifiers.sphincs256_with_SHA512);
+                noParams.Add((object)BCObjectIdentifiers.sphincs256_with_SHA3_512);
+
+                //
+                // XMSS
+                //
+                noParams.Add((object)BCObjectIdentifiers.xmss_with_SHA256);
+                noParams.Add((object)BCObjectIdentifiers.xmss_with_SHA512);
+                noParams.Add((object)BCObjectIdentifiers.xmss_with_SHAKE128);
+                noParams.Add((object)BCObjectIdentifiers.xmss_with_SHAKE256);
+                noParams.Add((object)BCObjectIdentifiers.xmss_mt_with_SHA256);
+                noParams.Add((object)BCObjectIdentifiers.xmss_mt_with_SHA512);
+                noParams.Add((object)BCObjectIdentifiers.xmss_mt_with_SHAKE128);
+                noParams.Add((object)BCObjectIdentifiers.xmss_mt_with_SHAKE256);
+
+                //
+                // SM2
+                //
+                noParams.Add((object)GMObjectIdentifiers.sm2sign_with_sm3);
+
+                //
+                // PKCS 1.5 encrypted  algorithms
+                //
+                pkcs15RsaEncryption.Add((object)PkcsObjectIdentifiers.Sha1WithRsaEncryption);
+                pkcs15RsaEncryption.Add((object)PkcsObjectIdentifiers.Sha224WithRsaEncryption);
+                pkcs15RsaEncryption.Add((object)PkcsObjectIdentifiers.Sha256WithRsaEncryption);
+                pkcs15RsaEncryption.Add((object)PkcsObjectIdentifiers.Sha384WithRsaEncryption);
+                pkcs15RsaEncryption.Add((object)PkcsObjectIdentifiers.Sha512WithRsaEncryption);
+                pkcs15RsaEncryption.Add((object)TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD128);
+                pkcs15RsaEncryption.Add((object)TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD160);
+                pkcs15RsaEncryption.Add((object)TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD256);
+                pkcs15RsaEncryption.Add((object)NistObjectIdentifiers.IdRsassaPkcs1V15WithSha3_224);
+                pkcs15RsaEncryption.Add((object)NistObjectIdentifiers.IdRsassaPkcs1V15WithSha3_256);
+                pkcs15RsaEncryption.Add((object)NistObjectIdentifiers.IdRsassaPkcs1V15WithSha3_384);
+                pkcs15RsaEncryption.Add((object)NistObjectIdentifiers.IdRsassaPkcs1V15WithSha3_512);
+
+                //
+                // explicit params
+                //
+                AlgorithmIdentifier sha1AlgId = new AlgorithmIdentifier(OiwObjectIdentifiers.IdSha1, DerNull.Instance);
+                _params["SHA1WITHRSAANDMGF1"] = CreatePssParams(sha1AlgId, 20);
+
+                AlgorithmIdentifier sha224AlgId = new AlgorithmIdentifier(NistObjectIdentifiers.IdSha224, DerNull.Instance);
+                _params["SHA224WITHRSAANDMGF1"] = CreatePssParams(sha224AlgId, 28);
+
+                AlgorithmIdentifier sha256AlgId = new AlgorithmIdentifier(NistObjectIdentifiers.IdSha256, DerNull.Instance);
+                _params["SHA256WITHRSAANDMGF1"] = CreatePssParams(sha256AlgId, 32);
+
+                AlgorithmIdentifier sha384AlgId = new AlgorithmIdentifier(NistObjectIdentifiers.IdSha384, DerNull.Instance);
+                _params["SHA384WITHRSAANDMGF1"] = CreatePssParams(sha384AlgId, 48);
+
+                AlgorithmIdentifier sha512AlgId = new AlgorithmIdentifier(NistObjectIdentifiers.IdSha512, DerNull.Instance);
+                _params["SHA512WITHRSAANDMGF1"] = CreatePssParams(sha512AlgId, 64);
+
+                AlgorithmIdentifier sha3_224AlgId = new AlgorithmIdentifier(NistObjectIdentifiers.IdSha3_224, DerNull.Instance);
+                _params["SHA3-224WITHRSAANDMGF1"] = CreatePssParams(sha3_224AlgId, 28);
+
+                AlgorithmIdentifier sha3_256AlgId = new AlgorithmIdentifier(NistObjectIdentifiers.IdSha3_256, DerNull.Instance);
+                _params["SHA3-256WITHRSAANDMGF1"] = CreatePssParams(sha3_256AlgId, 32);
+
+                AlgorithmIdentifier sha3_384AlgId = new AlgorithmIdentifier(NistObjectIdentifiers.IdSha3_384, DerNull.Instance);
+                _params["SHA3-384WITHRSAANDMGF1"] = CreatePssParams(sha3_384AlgId, 48);
+
+                AlgorithmIdentifier sha3_512AlgId = new AlgorithmIdentifier(NistObjectIdentifiers.IdSha3_512, DerNull.Instance);
+                _params["SHA3-512WITHRSAANDMGF1"] = CreatePssParams(sha3_512AlgId, 64);
+
+                //
+                // digests
+                //
+                digestOids[PkcsObjectIdentifiers.Sha224WithRsaEncryption] = NistObjectIdentifiers.IdSha224;
+                digestOids[PkcsObjectIdentifiers.Sha256WithRsaEncryption] = NistObjectIdentifiers.IdSha256;
+                digestOids[PkcsObjectIdentifiers.Sha384WithRsaEncryption] = NistObjectIdentifiers.IdSha384;
+                digestOids[PkcsObjectIdentifiers.Sha512WithRsaEncryption] = NistObjectIdentifiers.IdSha512;
+                digestOids[NistObjectIdentifiers.DsaWithSha224] = NistObjectIdentifiers.IdSha224;
+                digestOids[NistObjectIdentifiers.DsaWithSha224] = NistObjectIdentifiers.IdSha256;
+                digestOids[NistObjectIdentifiers.DsaWithSha224] = NistObjectIdentifiers.IdSha384;
+                digestOids[NistObjectIdentifiers.DsaWithSha224] = NistObjectIdentifiers.IdSha512;
+                digestOids[NistObjectIdentifiers.IdDsaWithSha3_224] = NistObjectIdentifiers.IdSha3_224;
+                digestOids[NistObjectIdentifiers.IdDsaWithSha3_256] = NistObjectIdentifiers.IdSha3_256;
+                digestOids[NistObjectIdentifiers.IdDsaWithSha3_384] = NistObjectIdentifiers.IdSha3_384;
+                digestOids[NistObjectIdentifiers.IdDsaWithSha3_512] = NistObjectIdentifiers.IdSha3_512;
+                digestOids[NistObjectIdentifiers.IdEcdsaWithSha3_224] = NistObjectIdentifiers.IdSha3_224;
+                digestOids[NistObjectIdentifiers.IdEcdsaWithSha3_256] = NistObjectIdentifiers.IdSha3_256;
+                digestOids[NistObjectIdentifiers.IdEcdsaWithSha3_384] = NistObjectIdentifiers.IdSha3_384;
+                digestOids[NistObjectIdentifiers.IdEcdsaWithSha3_512] = NistObjectIdentifiers.IdSha3_512;
+                digestOids[NistObjectIdentifiers.IdRsassaPkcs1V15WithSha3_224] = NistObjectIdentifiers.IdSha3_224;
+                digestOids[NistObjectIdentifiers.IdRsassaPkcs1V15WithSha3_256] = NistObjectIdentifiers.IdSha3_256;
+                digestOids[NistObjectIdentifiers.IdRsassaPkcs1V15WithSha3_384] = NistObjectIdentifiers.IdSha3_384;
+                digestOids[NistObjectIdentifiers.IdRsassaPkcs1V15WithSha3_512] = NistObjectIdentifiers.IdSha3_512;
+
+                digestOids[PkcsObjectIdentifiers.MD2WithRsaEncryption] = PkcsObjectIdentifiers.MD2;
+                digestOids[PkcsObjectIdentifiers.MD4WithRsaEncryption] = PkcsObjectIdentifiers.MD4;
+                digestOids[PkcsObjectIdentifiers.MD5WithRsaEncryption] = PkcsObjectIdentifiers.MD5;
+                digestOids[PkcsObjectIdentifiers.Sha1WithRsaEncryption] = OiwObjectIdentifiers.IdSha1;
+                digestOids[TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD128] = TeleTrusTObjectIdentifiers.RipeMD128;
+                digestOids[TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD160] = TeleTrusTObjectIdentifiers.RipeMD160;
+                digestOids[TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD256] = TeleTrusTObjectIdentifiers.RipeMD256;
+                digestOids[CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x94] = CryptoProObjectIdentifiers.GostR3411;
+                digestOids[CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x2001] = CryptoProObjectIdentifiers.GostR3411;
+                digestOids[RosstandartObjectIdentifiers.id_tc26_signwithdigest_gost_3410_12_256] = RosstandartObjectIdentifiers.id_tc26_gost_3411_12_256;
+                digestOids[RosstandartObjectIdentifiers.id_tc26_signwithdigest_gost_3410_12_512] = RosstandartObjectIdentifiers.id_tc26_gost_3411_12_512;
+                digestOids[GMObjectIdentifiers.sm2sign_with_sm3] = GMObjectIdentifiers.sm3;
+
+            }
+
+            private static AlgorithmIdentifier Generate(string signatureAlgorithm)
+            {
+                AlgorithmIdentifier sigAlgId;
+                AlgorithmIdentifier encAlgId;
+                AlgorithmIdentifier digAlgId;
+
+                string algorithmName = Strings.ToUpperCase(signatureAlgorithm);
+                DerObjectIdentifier sigOID = (DerObjectIdentifier)algorithms[algorithmName];
+                if (sigOID == null)
+                {
+                    throw new ArgumentException("Unknown signature type requested: " + algorithmName);
+                }
+
+                if (noParams.Contains(sigOID))
+                {
+                    sigAlgId = new AlgorithmIdentifier(sigOID);
+                }
+                else if (_params.Contains(algorithmName))
+                {
+                    sigAlgId = new AlgorithmIdentifier(sigOID, (Asn1Encodable)_params[algorithmName]);
+                }
+                else
+                {
+                    sigAlgId = new AlgorithmIdentifier(sigOID, DerNull.Instance);
+                }
+
+                if (pkcs15RsaEncryption.Contains(sigOID))
+                {
+                    encAlgId = new AlgorithmIdentifier(PkcsObjectIdentifiers.RsaEncryption, DerNull.Instance);
+                }
+                else
+                {
+                    encAlgId = sigAlgId;
+                }
+
+                if (sigAlgId.Algorithm.Equals(PkcsObjectIdentifiers.IdRsassaPss))
+                {
+                    digAlgId = ((RsassaPssParameters)sigAlgId.Parameters).HashAlgorithm;
+                }
+                else
+                {
+                    digAlgId = new AlgorithmIdentifier((DerObjectIdentifier)digestOids[sigOID], DerNull.Instance);
+                }
+
+                return sigAlgId;
+            }
+
+            private static RsassaPssParameters CreatePssParams(AlgorithmIdentifier hashAlgId, int saltSize)
+            {
+                return new RsassaPssParameters(
+                    hashAlgId,
+                    new AlgorithmIdentifier(PkcsObjectIdentifiers.IdMgf1, hashAlgId),
+                    new DerInteger(saltSize),
+                    new DerInteger(1));
+            }
+
+            public AlgorithmIdentifier Find(string sigAlgName)
+            {
+               
+                return Generate(sigAlgName);
+            }
+        }
+    
+
+
+
+
+
     public class DefaultDigestAlgorithmIdentifierFinder
     {
         private static readonly IDictionary digestOids = Platform.CreateHashtable();
diff --git a/crypto/src/crypto/IMacFactory.cs b/crypto/src/crypto/IMacFactory.cs
new file mode 100644
index 000000000..d6b7ddfa7
--- /dev/null
+++ b/crypto/src/crypto/IMacFactory.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Org.BouncyCastle.Crypto
+{
+    public interface IMacFactory
+    {
+        /// <summary>The algorithm details object for this calculator.</summary>
+        Object AlgorithmDetails { get; }
+
+        /// <summary>
+        /// Create a stream calculator for this signature calculator. The stream
+        /// calculator is used for the actual operation of entering the data to be signed
+        /// and producing the signature block.
+        /// </summary>
+        /// <returns>A calculator producing an IBlockResult with a signature in it.</returns>
+        IStreamCalculator CreateCalculator();
+    }
+}
diff --git a/crypto/src/crypto/operators/Asn1Mac.cs b/crypto/src/crypto/operators/Asn1Mac.cs
new file mode 100644
index 000000000..ff70e5849
--- /dev/null
+++ b/crypto/src/crypto/operators/Asn1Mac.cs
@@ -0,0 +1,410 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+using Org.BouncyCastle.Asn1;
+using Org.BouncyCastle.Asn1.Cmp;
+using Org.BouncyCastle.Asn1.Iana;
+using Org.BouncyCastle.Asn1.Nist;
+using Org.BouncyCastle.Asn1.Oiw;
+using Org.BouncyCastle.Asn1.Pkcs;
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Cms;
+using Org.BouncyCastle.Crypto.IO;
+using Org.BouncyCastle.Crypto.Parameters;
+using Org.BouncyCastle.Security;
+using Org.BouncyCastle.Utilities;
+using Org.BouncyCastle.Utilities.Encoders;
+
+namespace Org.BouncyCastle.Crypto.Operators
+{
+
+    public class DefaultMacStreamCalculator : IStreamCalculator
+    {
+        private readonly MacSink _stream;
+
+        public DefaultMacStreamCalculator(IMac mac)
+        {
+            _stream = new MacSink(mac);
+        }
+
+        public void Init(KeyParameter key)
+        {
+            _stream.Mac.Init(key);
+        }
+
+        public Stream Stream
+        {
+            get { return _stream; }
+        }
+        public object GetResult()
+        {
+            byte[] res = new byte[_stream.Mac.GetMacSize()];
+            _stream.Mac.DoFinal(res, 0);
+            return res;
+        }
+    }
+
+
+    public class DefaultMacAndDigestStreamCalculator : IStreamCalculator
+    {
+
+        private readonly MacSink macSink;
+        private readonly DigestSink digestSink;
+        private readonly Stream _stream;
+
+
+        public DefaultMacAndDigestStreamCalculator(IMac imac, IDigest idigest)
+        {
+            this.macSink = new MacSink(imac);
+            this.digestSink = new DigestSink(idigest);
+            _stream = new MergedStream(macSink,digestSink);
+        }
+
+
+        public void Init(KeyParameter macKey)
+        {
+            this.macSink.Mac.Init(macKey);
+        }
+
+        public void Init(PbmParameter parameter, byte[] password)
+        {
+
+            byte[] pw = password;
+            byte[] salt = parameter.Salt.GetOctets();
+            byte[] K = new byte[pw.Length + salt.Length];
+
+            System.Array.Copy(pw,K,pw.Length);
+            System.Array.Copy(salt,0,K,pw.Length,salt.Length);
+            int iter = parameter.IterationCount.Value.IntValue;
+            this.digestSink.Digest.Reset();
+
+            IDigest dig = DigestUtilities.GetDigest(digestSink.Digest.AlgorithmName);
+
+           
+        
+            dig.BlockUpdate(K,0,K.Length);
+            K = new byte[dig.GetDigestSize()];
+            dig.DoFinal(K, 0);
+            iter--;
+
+            do
+            {
+                dig.BlockUpdate(K,0,K.Length);
+                dig.DoFinal(K, 0);
+            } while (--iter > 0);
+        
+           macSink.Mac.Init(new KeyParameter(K));
+        }
+
+
+
+        public Stream Stream
+        {
+            get { return _stream; }
+        }
+
+
+        public object GetResult()
+        {
+            byte[] macResult = new byte[macSink.Mac.GetMacSize()];
+            macSink.Mac.DoFinal(macResult, 0);
+            byte[] digestResult = new byte[digestSink.Digest.GetByteLength()];
+            digestSink.Digest.DoFinal(digestResult, 0);
+            return new DefaultMacAndDigestResult(digestResult, macResult);
+        }
+
+        private class MergedStream : Stream
+        {
+
+            private Stream aStream;
+            private Stream bStream;
+
+            public MergedStream(Stream aStream, Stream bStream)
+            {
+                this.aStream = aStream;
+                this.bStream = bStream;
+            }
+
+            public override void Flush()
+            {
+                aStream.Flush();
+                bStream.Flush();
+            }
+
+            public override long Seek(long offset, SeekOrigin origin)
+            {
+                aStream.Seek(offset, origin);
+                return bStream.Seek(offset, origin);
+            }
+
+            public override void SetLength(long value)
+            {
+                aStream.SetLength(value);
+                bStream.SetLength(value);
+            }
+
+            public override int Read(byte[] buffer, int offset, int count)
+            {
+                aStream.Read(buffer, offset, count);
+                return bStream.Read(buffer, offset, count);
+            }
+
+            public override void Write(byte[] buffer, int offset, int count)
+            {
+                aStream.Write(buffer, offset, count);
+                bStream.Write(buffer, offset, count);
+            }
+
+            public override bool CanRead
+            {
+                get { return bStream.CanRead && aStream.CanRead; }
+            }
+            public override bool CanSeek
+            {
+                get { return bStream.CanSeek && aStream.CanSeek; }
+
+            }
+            public override bool CanWrite {
+                get { return bStream.CanWrite && aStream.CanWrite; }
+                
+            }
+            public override long Length {
+                get
+                {
+                    return aStream.Length;              
+                }
+            }
+            public override long Position
+            {
+                get { return aStream.Position; }
+
+                set { aStream.Position = value; }
+            }
+        }
+    }
+
+    public struct DefaultMacAndDigestResult
+    {
+        public DefaultMacAndDigestResult(byte[] digestResult, byte[] macResult)
+        {
+            DigestResult = digestResult;
+            MacResult = macResult;
+        }
+
+        public byte[] DigestResult { get; }
+
+        public byte[] MacResult { get; }
+    }
+
+    public class Asn1MacFactory : IMacFactory
+    {
+        protected readonly AlgorithmIdentifier MacAlgorithmIdentifier;
+
+        
+   
+        public Asn1MacFactory(AlgorithmIdentifier macAlgorithmIdentifier)
+        {
+            MacAlgorithmIdentifier = macAlgorithmIdentifier;  
+        }
+
+       
+
+        public virtual object AlgorithmDetails
+        {
+            get { return MacAlgorithmIdentifier; }
+        }
+
+        public virtual IStreamCalculator CreateCalculator()
+        {
+           IMac mac = MacUtilities.GetMac(MacAlgorithmIdentifier.Algorithm);
+           return new DefaultMacStreamCalculator(mac);
+        }
+    }
+
+
+    public interface IMacFactoryProvider
+    {
+        IMacFactory CreateMacFactory(AlgorithmIdentifier algorithmIdentifier);
+    }
+
+    public class Asn1MacFactoryProvider : IMacFactoryProvider
+    {
+        public IMacFactory CreateMacFactory(AlgorithmIdentifier algorithmIdentifier)
+        {
+            return new Asn1MacFactory(algorithmIdentifier);
+        }
+
+        public IMacFactory CreateMacFactory(AlgorithmIdentifier digestAlgorithmIdentifier, AlgorithmIdentifier macAlgorithmIdentifier)
+        {
+            return new PkMacFactory(digestAlgorithmIdentifier,macAlgorithmIdentifier);
+        }
+
+        public IMacFactory CreateMacFactory(PbmParameter parameter)
+        {
+            return new PkMacFactory(parameter);
+        }
+
+    }
+
+
+
+    public class PkMacFactory:Asn1MacFactory
+    {
+        private readonly AlgorithmIdentifier _digestAlgorithmIdentifier;
+        private byte[] password;
+        private int iterationCount;
+        private byte[] salt;
+
+
+     
+        public PkMacFactory(SecureRandom random) : base(new AlgorithmIdentifier(IanaObjectIdentifiers.HmacSha1))
+        {
+            this._digestAlgorithmIdentifier = new AlgorithmIdentifier(OiwObjectIdentifiers.IdSha1, DerNull.Instance);
+            this.iterationCount = 1000;
+            this.salt = new byte[20];
+            random.NextBytes(salt);        
+        }
+
+        public PkMacFactory(AlgorithmIdentifier digestAlgorithmIdentifier, AlgorithmIdentifier macAlgorithmIdentifier) : base(macAlgorithmIdentifier)
+        {
+            this._digestAlgorithmIdentifier = digestAlgorithmIdentifier;
+        }
+
+        public PkMacFactory(PbmParameter parameter):base(parameter.Mac)
+        {
+            this._digestAlgorithmIdentifier = parameter.Owf;         
+            this.salt = parameter.Salt.GetOctets();
+            this.iterationCount = parameter.IterationCount.Value.IntValue;           
+        }
+
+        public override object AlgorithmDetails
+        {
+            get
+            {
+                return new AlgorithmIdentifier(CmpObjectIdentifiers.passwordBasedMac,
+                    new PbmParameter(salt, _digestAlgorithmIdentifier, iterationCount, MacAlgorithmIdentifier));
+            }
+        }
+
+
+        public int IterationCount
+        {
+            set { this.iterationCount = value; }
+        }
+        public byte[] Salt
+        {
+            set { this.salt = value;}
+        }
+        public byte[] Password {
+            set { this.password = value; }
+        }
+       
+
+        public override IStreamCalculator CreateCalculator()
+        {
+           
+            DefaultMacAndDigestStreamCalculator calc = new DefaultMacAndDigestStreamCalculator(
+                MacUtilities.GetMac(this.MacAlgorithmIdentifier.Algorithm), 
+                DigestUtilities.GetDigest(_digestAlgorithmIdentifier.Algorithm));
+       
+            PbmParameter parameter = new PbmParameter(salt, _digestAlgorithmIdentifier,iterationCount,MacAlgorithmIdentifier);                 
+            calc.Init(parameter, password);
+            
+          
+            return calc;
+        }
+
+    }
+
+
+    public class MacVerifierFactory : IVerifierFactory
+    {
+        private readonly IMacFactory _macFactory;
+
+
+        public MacVerifierFactory(IMacFactory macFactory)
+        {
+            this._macFactory = macFactory;
+        }
+
+        public object AlgorithmDetails
+        {
+            get { return _macFactory.AlgorithmDetails; }
+        }
+        public IStreamCalculator CreateCalculator()
+        {
+            return new MacVerifier(_macFactory.CreateCalculator());
+        }
+
+        private class MacVerifier : IStreamCalculator
+        {
+            public IStreamCalculator _calculator;
+
+            public MacVerifier(IStreamCalculator calculator)
+            {
+                _calculator = calculator;
+            }
+
+            public Stream Stream
+            {
+                get { return _calculator.Stream; }
+            }
+
+            public object GetResult()
+            {
+                object result = _calculator.GetResult();
+                if (result is byte[])
+                {
+                    return new DefaultMacVerifierResult((byte[])result);
+                } else if (result is DefaultMacAndDigestResult)
+                {
+                    return new DefaultMacVerifierResult(((DefaultMacAndDigestResult)result).MacResult);
+
+                }
+
+                throw new InvalidOperationException("calculator did not return byte[] or DefaultMacVerifierResult");
+            }
+        }
+
+    }
+
+
+    public class DefaultMacVerifierResult:IVerifier
+    {
+        private readonly byte[] _calculatedResult;
+
+        public DefaultMacVerifierResult(byte[] calculatedResult)
+        {
+            this._calculatedResult = calculatedResult;
+        }
+
+
+        public bool IsVerified(byte[] data)
+        {
+            return Arrays.ConstantTimeAreEqual(_calculatedResult, data);
+        }
+
+        public bool IsVerified(byte[] source, int off, int length)
+        {
+            if (_calculatedResult.Length != length)
+            {
+                return false;
+            }
+
+            //
+            // Must be constant time.
+            //
+            int j = 0;        
+            int nonEqual = 0;        
+            for (int i = off; i < off + length; i++)
+            {
+                nonEqual |= (_calculatedResult[j++] ^ source[i]);
+            }
+
+            return nonEqual == 0;
+        }
+    }
+
+
+}
diff --git a/crypto/src/crypto/operators/Asn1Signature.cs b/crypto/src/crypto/operators/Asn1Signature.cs
index 3fa193273..3962a4a15 100644
--- a/crypto/src/crypto/operators/Asn1Signature.cs
+++ b/crypto/src/crypto/operators/Asn1Signature.cs
@@ -236,6 +236,8 @@ namespace Org.BouncyCastle.Crypto.Operators
 		}
 	}
 
+
+
     /// <summary>
     /// Calculator factory class for signature generation in ASN.1 based profiles that use an AlgorithmIdentifier to preserve
     /// signature algorithm details.
diff --git a/crypto/src/crypto/operators/GenericKey.cs b/crypto/src/crypto/operators/GenericKey.cs
new file mode 100644
index 000000000..b2df74661
--- /dev/null
+++ b/crypto/src/crypto/operators/GenericKey.cs
@@ -0,0 +1,41 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Org.BouncyCastle.Asn1.X509;
+
+namespace Org.BouncyCastle.Crypto.Operators
+{
+    public class GenericKey
+    {
+        private AlgorithmIdentifier algorithmIdentifier;
+        private object representation;
+
+        public GenericKey(object representation)
+        {
+            algorithmIdentifier = null;
+            this.representation = representation;
+        }
+
+        public GenericKey(AlgorithmIdentifier algorithmIdentifier, byte[] representation)
+        {
+            this.algorithmIdentifier = algorithmIdentifier;
+            this.representation = representation;
+        }
+
+        public GenericKey(AlgorithmIdentifier algorithmIdentifier, object representation)
+        {
+            this.algorithmIdentifier = algorithmIdentifier;
+            this.representation = representation;
+        }
+
+        public AlgorithmIdentifier AlgorithmIdentifier
+        {
+            get { return algorithmIdentifier; }
+        }
+
+        public object Representation
+        {
+            get { return representation; }
+        }
+    }
+}
diff --git a/crypto/src/util/Strings.cs b/crypto/src/util/Strings.cs
index 3937a087f..73a15ea73 100644
--- a/crypto/src/util/Strings.cs
+++ b/crypto/src/util/Strings.cs
@@ -6,6 +6,31 @@ namespace Org.BouncyCastle.Utilities
     /// <summary> General string utilities.</summary>
     public abstract class Strings
     {
+
+        public static string ToUpperCase(string original)
+        {
+            bool changed = false;
+            char[] chars = original.ToCharArray();
+
+            for (int i = 0; i != chars.Length; i++)
+            {
+                char ch = chars[i];
+                if ('a' <= ch && 'z' >= ch)
+                {
+                    changed = true;
+                    chars[i] = (char)(ch - 'a' + 'A');
+                }
+            }
+
+            if (changed)
+            {
+                return new String(chars);
+            }
+
+            return original;
+        }
+
+
         internal static bool IsOneOf(string s, params string[] candidates)
         {
             foreach (string candidate in candidates)
diff --git a/crypto/test/src/cms/test/AllTests.cs b/crypto/test/src/cms/test/AllTests.cs
index b47374914..7ab5721ac 100644
--- a/crypto/test/src/cms/test/AllTests.cs
+++ b/crypto/test/src/cms/test/AllTests.cs
@@ -3,7 +3,7 @@ using System;
 
 using NUnit.Core;
 using NUnit.Framework;
-
+using Org.BouncyCastle.Asn1.Tests;
 using Org.BouncyCastle.Utilities.Test;
 
 namespace Org.BouncyCastle.Cms.Tests
@@ -21,6 +21,7 @@ namespace Org.BouncyCastle.Cms.Tests
             get
             {
                 TestSuite suite = new TestSuite("CMS Tests");
+                suite.Add(new ProtectedMessageTest());
                 suite.Add(new CompressedDataTest());
                 suite.Add(new CompressedDataStreamTest());
                 suite.Add(new EnvelopedDataTest());