1 files changed, 45 insertions, 0 deletions
diff --git a/crypto/src/crmf/CertificateReqMessages.cs b/crypto/src/crmf/CertificateReqMessages.cs
new file mode 100644
index 000000000..db465a352
--- /dev/null
+++ b/crypto/src/crmf/CertificateReqMessages.cs
@@ -0,0 +1,45 @@
+using System;
+
+using Org.BouncyCastle.Asn1.Cmp;
+using Org.BouncyCastle.Asn1.Crmf;
+
+namespace Org.BouncyCastle.Crmf
+{
+    public class CertificateReqMessages
+    {
+        public static CertificateReqMessages FromPkiBody(PkiBody pkiBody)
+        {
+            if (!IsCertificateRequestMessages(pkiBody.Type))
+                throw new ArgumentException("content of PKIBody wrong type: " + pkiBody.Type);
+
+            return new CertificateReqMessages(CertReqMessages.GetInstance(pkiBody.Content));
+        }
+
+        public static bool IsCertificateRequestMessages(int bodyType)
+        {
+            switch (bodyType)
+            {
+            case PkiBody.TYPE_INIT_REQ:
+            case PkiBody.TYPE_CERT_REQ:
+            case PkiBody.TYPE_KEY_UPDATE_REQ:
+            case PkiBody.TYPE_KEY_RECOVERY_REQ:
+            case PkiBody.TYPE_CROSS_CERT_REQ:
+                return true;
+            default:
+                return false;
+            }
+        }
+
+        private readonly CertReqMsg[] m_reqs;
+
+        public CertificateReqMessages(CertReqMessages certReqMessages)
+        {
+            m_reqs = certReqMessages.ToCertReqMsgArray();
+        }
+
+        public virtual CertificateRequestMessage[] GetRequests() =>
+            Array.ConvertAll(m_reqs, req => new CertificateRequestMessage(req));
+
+        public virtual CertReqMessages ToAsn1Structure() => new CertReqMessages(m_reqs);
+    }
+}