1 files changed, 123 insertions, 0 deletions
diff --git a/crypto/src/asn1/pkcs/CertificationRequestInfo.cs b/crypto/src/asn1/pkcs/CertificationRequestInfo.cs
new file mode 100644
index 000000000..690d06878
--- /dev/null
+++ b/crypto/src/asn1/pkcs/CertificationRequestInfo.cs
@@ -0,0 +1,123 @@
+using System;
+
+using Org.BouncyCastle.Asn1.X509;
+
+namespace Org.BouncyCastle.Asn1.Pkcs
+{
+    /**
+     * Pkcs10 CertificationRequestInfo object.
+     * <pre>
+     *  CertificationRequestInfo ::= Sequence {
+     *   version             Integer { v1(0) } (v1,...),
+     *   subject             Name,
+     *   subjectPKInfo   SubjectPublicKeyInfo{{ PKInfoAlgorithms }},
+     *   attributes          [0] Attributes{{ CRIAttributes }}
+     *  }
+     *
+     *  Attributes { ATTRIBUTE:IOSet } ::= Set OF Attr{{ IOSet }}
+     *
+     *  Attr { ATTRIBUTE:IOSet } ::= Sequence {
+     *    type    ATTRIBUTE.&amp;id({IOSet}),
+     *    values  Set SIZE(1..MAX) OF ATTRIBUTE.&amp;Type({IOSet}{\@type})
+     *  }
+     * </pre>
+     */
+    public class CertificationRequestInfo
+        : Asn1Encodable
+    {
+        internal DerInteger				version = new DerInteger(0);
+        internal X509Name				subject;
+        internal SubjectPublicKeyInfo	subjectPKInfo;
+        internal Asn1Set				attributes;
+
+		public static CertificationRequestInfo GetInstance(
+            object  obj)
+        {
+            if (obj is CertificationRequestInfo)
+            {
+                return (CertificationRequestInfo) obj;
+            }
+
+			if (obj is Asn1Sequence)
+            {
+                return new CertificationRequestInfo((Asn1Sequence) obj);
+            }
+
+			throw new ArgumentException("Unknown object in factory: " + obj.GetType().FullName, "obj");
+		}
+
+		public CertificationRequestInfo(
+            X509Name				subject,
+            SubjectPublicKeyInfo	pkInfo,
+            Asn1Set					attributes)
+        {
+            this.subject = subject;
+            this.subjectPKInfo = pkInfo;
+            this.attributes = attributes;
+
+			if (subject == null || version == null || subjectPKInfo == null)
+            {
+                throw new ArgumentException(
+					"Not all mandatory fields set in CertificationRequestInfo generator.");
+            }
+        }
+
+		private CertificationRequestInfo(
+            Asn1Sequence seq)
+        {
+            version = (DerInteger) seq[0];
+
+			subject = X509Name.GetInstance(seq[1]);
+            subjectPKInfo = SubjectPublicKeyInfo.GetInstance(seq[2]);
+
+			//
+            // some CertificationRequestInfo objects seem to treat this field
+            // as optional.
+            //
+            if (seq.Count > 3)
+            {
+                DerTaggedObject tagobj = (DerTaggedObject) seq[3];
+                attributes = Asn1Set.GetInstance(tagobj, false);
+            }
+
+			if (subject == null || version == null || subjectPKInfo == null)
+            {
+                throw new ArgumentException(
+					"Not all mandatory fields set in CertificationRequestInfo generator.");
+            }
+        }
+
+		public DerInteger Version
+		{
+			get { return version; }
+		}
+
+		public X509Name Subject
+		{
+			get { return subject; }
+		}
+
+		public SubjectPublicKeyInfo SubjectPublicKeyInfo
+		{
+			get { return subjectPKInfo; }
+		}
+
+		public Asn1Set Attributes
+		{
+			get { return attributes; }
+		}
+
+		public override Asn1Object ToAsn1Object()
+        {
+            Asn1EncodableVector v = new Asn1EncodableVector(
+				version, subject, subjectPKInfo);
+
+			if (attributes != null)
+            {
+                v.Add(new DerTaggedObject(false, 0, attributes));
+            }
+
+			return new DerSequence(v);
+        }
+    }
+}