diff --git a/Crypto/src/asn1/crmf/CertTemplate.cs b/Crypto/src/asn1/crmf/CertTemplate.cs
new file mode 100644
index 000000000..3de9f1d5a
--- /dev/null
+++ b/Crypto/src/asn1/crmf/CertTemplate.cs
@@ -0,0 +1,149 @@
+using System;
+
+using Org.BouncyCastle.Asn1.X509;
+
+namespace Org.BouncyCastle.Asn1.Crmf
+{
+ public class CertTemplate
+ : Asn1Encodable
+ {
+ private readonly Asn1Sequence seq;
+
+ private readonly DerInteger version;
+ private readonly DerInteger serialNumber;
+ private readonly AlgorithmIdentifier signingAlg;
+ private readonly X509Name issuer;
+ private readonly OptionalValidity validity;
+ private readonly X509Name subject;
+ private readonly SubjectPublicKeyInfo publicKey;
+ private readonly DerBitString issuerUID;
+ private readonly DerBitString subjectUID;
+ private readonly X509Extensions extensions;
+
+ private CertTemplate(Asn1Sequence seq)
+ {
+ this.seq = seq;
+
+ foreach (Asn1TaggedObject tObj in seq)
+ {
+ switch (tObj.TagNo)
+ {
+ case 0:
+ version = DerInteger.GetInstance(tObj, false);
+ break;
+ case 1:
+ serialNumber = DerInteger.GetInstance(tObj, false);
+ break;
+ case 2:
+ signingAlg = AlgorithmIdentifier.GetInstance(tObj, false);
+ break;
+ case 3:
+ issuer = X509Name.GetInstance(tObj, true); // CHOICE
+ break;
+ case 4:
+ validity = OptionalValidity.GetInstance(Asn1Sequence.GetInstance(tObj, false));
+ break;
+ case 5:
+ subject = X509Name.GetInstance(tObj, true); // CHOICE
+ break;
+ case 6:
+ publicKey = SubjectPublicKeyInfo.GetInstance(tObj, false);
+ break;
+ case 7:
+ issuerUID = DerBitString.GetInstance(tObj, false);
+ break;
+ case 8:
+ subjectUID = DerBitString.GetInstance(tObj, false);
+ break;
+ case 9:
+ extensions = X509Extensions.GetInstance(tObj, false);
+ break;
+ default:
+ throw new ArgumentException("unknown tag: " + tObj.TagNo, "seq");
+ }
+ }
+ }
+
+ public static CertTemplate GetInstance(object obj)
+ {
+ if (obj is CertTemplate)
+ return (CertTemplate)obj;
+
+ if (obj != null)
+ return new CertTemplate(Asn1Sequence.GetInstance(obj));
+
+ return null;
+ }
+
+ public virtual int Version
+ {
+ get { return version.Value.IntValue; }
+ }
+
+ public virtual DerInteger SerialNumber
+ {
+ get { return serialNumber; }
+ }
+
+ public virtual AlgorithmIdentifier SigningAlg
+ {
+ get { return signingAlg; }
+ }
+
+ public virtual X509Name Issuer
+ {
+ get { return issuer; }
+ }
+
+ public virtual OptionalValidity Validity
+ {
+ get { return validity; }
+ }
+
+ public virtual X509Name Subject
+ {
+ get { return subject; }
+ }
+
+ public virtual SubjectPublicKeyInfo PublicKey
+ {
+ get { return publicKey; }
+ }
+
+ public virtual DerBitString IssuerUID
+ {
+ get { return issuerUID; }
+ }
+
+ public virtual DerBitString SubjectUID
+ {
+ get { return subjectUID; }
+ }
+
+ public virtual X509Extensions Extensions
+ {
+ get { return extensions; }
+ }
+
+ /**
+ * <pre>
+ * CertTemplate ::= SEQUENCE {
+ * version [0] Version OPTIONAL,
+ * serialNumber [1] INTEGER OPTIONAL,
+ * signingAlg [2] AlgorithmIdentifier OPTIONAL,
+ * issuer [3] Name OPTIONAL,
+ * validity [4] OptionalValidity OPTIONAL,
+ * subject [5] Name OPTIONAL,
+ * publicKey [6] SubjectPublicKeyInfo OPTIONAL,
+ * issuerUID [7] UniqueIdentifier OPTIONAL,
+ * subjectUID [8] UniqueIdentifier OPTIONAL,
+ * extensions [9] Extensions OPTIONAL }
+ * </pre>
+ * @return a basic ASN.1 object representation.
+ */
+ public override Asn1Object ToAsn1Object()
+ {
+ return seq;
+ }
+ }
+}
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