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using System;
using System.Collections;
using System.IO;
using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.Cms;
using Org.BouncyCastle.Asn1.CryptoPro;
using Org.BouncyCastle.Asn1.Nist;
using Org.BouncyCastle.Asn1.Oiw;
using Org.BouncyCastle.Asn1.Pkcs;
using Org.BouncyCastle.Asn1.TeleTrust;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Asn1.X9;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Crypto.Parameters;
using Org.BouncyCastle.Security;
using Org.BouncyCastle.Utilities;
using Org.BouncyCastle.Utilities.Collections;
using Org.BouncyCastle.X509;
using Org.BouncyCastle.X509.Store;
namespace Org.BouncyCastle.Cms
{
public class DefaultDigestAlgorithmIdentifierFinder
{
private static readonly IDictionary digestOids = Platform.CreateHashtable();
private static readonly IDictionary digestNameToOids = Platform.CreateHashtable();
static DefaultDigestAlgorithmIdentifierFinder()
{
//
// digests
//
digestOids.Add(OiwObjectIdentifiers.MD4WithRsaEncryption, PkcsObjectIdentifiers.MD4);
digestOids.Add(OiwObjectIdentifiers.MD4WithRsa, PkcsObjectIdentifiers.MD4);
digestOids.Add(OiwObjectIdentifiers.MD5WithRsa, PkcsObjectIdentifiers.MD5);
digestOids.Add(OiwObjectIdentifiers.Sha1WithRsa, OiwObjectIdentifiers.IdSha1);
digestOids.Add(OiwObjectIdentifiers.DsaWithSha1, OiwObjectIdentifiers.IdSha1);
digestOids.Add(PkcsObjectIdentifiers.Sha224WithRsaEncryption, NistObjectIdentifiers.IdSha224);
digestOids.Add(PkcsObjectIdentifiers.Sha256WithRsaEncryption, NistObjectIdentifiers.IdSha256);
digestOids.Add(PkcsObjectIdentifiers.Sha384WithRsaEncryption, NistObjectIdentifiers.IdSha384);
digestOids.Add(PkcsObjectIdentifiers.Sha512WithRsaEncryption, NistObjectIdentifiers.IdSha512);
digestOids.Add(PkcsObjectIdentifiers.MD2WithRsaEncryption, PkcsObjectIdentifiers.MD2);
digestOids.Add(PkcsObjectIdentifiers.MD4WithRsaEncryption, PkcsObjectIdentifiers.MD4);
digestOids.Add(PkcsObjectIdentifiers.MD5WithRsaEncryption, PkcsObjectIdentifiers.MD5);
digestOids.Add(PkcsObjectIdentifiers.Sha1WithRsaEncryption, OiwObjectIdentifiers.IdSha1);
digestOids.Add(X9ObjectIdentifiers.ECDsaWithSha1, OiwObjectIdentifiers.IdSha1);
digestOids.Add(X9ObjectIdentifiers.ECDsaWithSha224, NistObjectIdentifiers.IdSha224);
digestOids.Add(X9ObjectIdentifiers.ECDsaWithSha256, NistObjectIdentifiers.IdSha256);
digestOids.Add(X9ObjectIdentifiers.ECDsaWithSha384, NistObjectIdentifiers.IdSha384);
digestOids.Add(X9ObjectIdentifiers.ECDsaWithSha512, NistObjectIdentifiers.IdSha512);
digestOids.Add(X9ObjectIdentifiers.IdDsaWithSha1, OiwObjectIdentifiers.IdSha1);
digestOids.Add(NistObjectIdentifiers.DsaWithSha224, NistObjectIdentifiers.IdSha224);
digestOids.Add(NistObjectIdentifiers.DsaWithSha256, NistObjectIdentifiers.IdSha256);
digestOids.Add(NistObjectIdentifiers.DsaWithSha384, NistObjectIdentifiers.IdSha384);
digestOids.Add(NistObjectIdentifiers.DsaWithSha512, NistObjectIdentifiers.IdSha512);
digestOids.Add(TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD128, TeleTrusTObjectIdentifiers.RipeMD128);
digestOids.Add(TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD160, TeleTrusTObjectIdentifiers.RipeMD160);
digestOids.Add(TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD256, TeleTrusTObjectIdentifiers.RipeMD256);
digestOids.Add(CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x94, CryptoProObjectIdentifiers.GostR3411);
digestOids.Add(CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x2001, CryptoProObjectIdentifiers.GostR3411);
digestNameToOids.Add("SHA-1", OiwObjectIdentifiers.IdSha1);
digestNameToOids.Add("SHA-224", NistObjectIdentifiers.IdSha224);
digestNameToOids.Add("SHA-256", NistObjectIdentifiers.IdSha256);
digestNameToOids.Add("SHA-384", NistObjectIdentifiers.IdSha384);
digestNameToOids.Add("SHA-512", NistObjectIdentifiers.IdSha512);
digestNameToOids.Add("SHA1", OiwObjectIdentifiers.IdSha1);
digestNameToOids.Add("SHA224", NistObjectIdentifiers.IdSha224);
digestNameToOids.Add("SHA256", NistObjectIdentifiers.IdSha256);
digestNameToOids.Add("SHA384", NistObjectIdentifiers.IdSha384);
digestNameToOids.Add("SHA512", NistObjectIdentifiers.IdSha512);
digestNameToOids.Add("SHA3-224", NistObjectIdentifiers.IdSha3_224);
digestNameToOids.Add("SHA3-256", NistObjectIdentifiers.IdSha3_256);
digestNameToOids.Add("SHA3-384", NistObjectIdentifiers.IdSha3_384);
digestNameToOids.Add("SHA3-512", NistObjectIdentifiers.IdSha3_512);
digestNameToOids.Add("SHAKE-128", NistObjectIdentifiers.IdShake128);
digestNameToOids.Add("SHAKE-256", NistObjectIdentifiers.IdShake256);
digestNameToOids.Add("GOST3411", CryptoProObjectIdentifiers.GostR3411);
digestNameToOids.Add("MD2", PkcsObjectIdentifiers.MD2);
digestNameToOids.Add("MD4", PkcsObjectIdentifiers.MD4);
digestNameToOids.Add("MD5", PkcsObjectIdentifiers.MD5);
digestNameToOids.Add("RIPEMD128", TeleTrusTObjectIdentifiers.RipeMD128);
digestNameToOids.Add("RIPEMD160", TeleTrusTObjectIdentifiers.RipeMD160);
digestNameToOids.Add("RIPEMD256", TeleTrusTObjectIdentifiers.RipeMD256);
}
public AlgorithmIdentifier find(AlgorithmIdentifier sigAlgId)
{
AlgorithmIdentifier digAlgId;
if (sigAlgId.Algorithm.Equals(PkcsObjectIdentifiers.IdRsassaPss))
{
digAlgId = RsassaPssParameters.GetInstance(sigAlgId.Parameters).HashAlgorithm;
}
else
{
digAlgId = new AlgorithmIdentifier((DerObjectIdentifier)digestOids[sigAlgId.Algorithm], DerNull.Instance);
}
return digAlgId;
}
public AlgorithmIdentifier find(String digAlgName)
{
return new AlgorithmIdentifier((DerObjectIdentifier)digestNameToOids[digAlgName], DerNull.Instance);
}
}
public class CmsSignedGenerator
{
/**
* Default type for the signed data.
*/
public static readonly string Data = CmsObjectIdentifiers.Data.Id;
public static readonly string DigestSha1 = OiwObjectIdentifiers.IdSha1.Id;
public static readonly string DigestSha224 = NistObjectIdentifiers.IdSha224.Id;
public static readonly string DigestSha256 = NistObjectIdentifiers.IdSha256.Id;
public static readonly string DigestSha384 = NistObjectIdentifiers.IdSha384.Id;
public static readonly string DigestSha512 = NistObjectIdentifiers.IdSha512.Id;
public static readonly string DigestMD5 = PkcsObjectIdentifiers.MD5.Id;
public static readonly string DigestGost3411 = CryptoProObjectIdentifiers.GostR3411.Id;
public static readonly string DigestRipeMD128 = TeleTrusTObjectIdentifiers.RipeMD128.Id;
public static readonly string DigestRipeMD160 = TeleTrusTObjectIdentifiers.RipeMD160.Id;
public static readonly string DigestRipeMD256 = TeleTrusTObjectIdentifiers.RipeMD256.Id;
public static readonly string EncryptionRsa = PkcsObjectIdentifiers.RsaEncryption.Id;
public static readonly string EncryptionDsa = X9ObjectIdentifiers.IdDsaWithSha1.Id;
public static readonly string EncryptionECDsa = X9ObjectIdentifiers.ECDsaWithSha1.Id;
public static readonly string EncryptionRsaPss = PkcsObjectIdentifiers.IdRsassaPss.Id;
public static readonly string EncryptionGost3410 = CryptoProObjectIdentifiers.GostR3410x94.Id;
public static readonly string EncryptionECGost3410 = CryptoProObjectIdentifiers.GostR3410x2001.Id;
internal IList _certs = Platform.CreateArrayList();
internal IList _crls = Platform.CreateArrayList();
internal IList _signers = Platform.CreateArrayList();
internal IDictionary _digests = Platform.CreateHashtable();
protected readonly SecureRandom rand;
protected CmsSignedGenerator()
: this(new SecureRandom())
{
}
/// <summary>Constructor allowing specific source of randomness</summary>
/// <param name="rand">Instance of <c>SecureRandom</c> to use.</param>
protected CmsSignedGenerator(
SecureRandom rand)
{
this.rand = rand;
}
internal protected virtual IDictionary GetBaseParameters(
DerObjectIdentifier contentType,
AlgorithmIdentifier digAlgId,
byte[] hash)
{
IDictionary param = Platform.CreateHashtable();
if (contentType != null)
{
param[CmsAttributeTableParameter.ContentType] = contentType;
}
param[CmsAttributeTableParameter.DigestAlgorithmIdentifier] = digAlgId;
param[CmsAttributeTableParameter.Digest] = hash.Clone();
return param;
}
internal protected virtual Asn1Set GetAttributeSet(
Asn1.Cms.AttributeTable attr)
{
return attr == null
? null
: new DerSet(attr.ToAsn1EncodableVector());
}
public void AddCertificates(
IX509Store certStore)
{
CollectionUtilities.AddRange(_certs, CmsUtilities.GetCertificatesFromStore(certStore));
}
public void AddCrls(
IX509Store crlStore)
{
CollectionUtilities.AddRange(_crls, CmsUtilities.GetCrlsFromStore(crlStore));
}
/**
* Add the attribute certificates contained in the passed in store to the
* generator.
*
* @param store a store of Version 2 attribute certificates
* @throws CmsException if an error occurse processing the store.
*/
public void AddAttributeCertificates(
IX509Store store)
{
try
{
foreach (IX509AttributeCertificate attrCert in store.GetMatches(null))
{
_certs.Add(new DerTaggedObject(false, 2,
AttributeCertificate.GetInstance(Asn1Object.FromByteArray(attrCert.GetEncoded()))));
}
}
catch (Exception e)
{
throw new CmsException("error processing attribute certs", e);
}
}
/**
* Add a store of precalculated signers to the generator.
*
* @param signerStore store of signers
*/
public void AddSigners(
SignerInformationStore signerStore)
{
foreach (SignerInformation o in signerStore.GetSigners())
{
_signers.Add(o);
AddSignerCallback(o);
}
}
/**
* Return a map of oids and byte arrays representing the digests calculated on the content during
* the last generate.
*
* @return a map of oids (as String objects) and byte[] representing digests.
*/
public IDictionary GetGeneratedDigests()
{
return Platform.CreateHashtable(_digests);
}
internal virtual void AddSignerCallback(
SignerInformation si)
{
}
internal static SignerIdentifier GetSignerIdentifier(X509Certificate cert)
{
return new SignerIdentifier(CmsUtilities.GetIssuerAndSerialNumber(cert));
}
internal static SignerIdentifier GetSignerIdentifier(byte[] subjectKeyIdentifier)
{
return new SignerIdentifier(new DerOctetString(subjectKeyIdentifier));
}
}
}
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