1 files changed, 66 insertions, 0 deletions

diff --git a/crypto/src/asn1/cmp/CertReqTemplateContent.cs b/crypto/src/asn1/cmp/CertReqTemplateContent.cs
new file mode 100644
index 000000000..b229cd28b
--- /dev/null
+++ b/crypto/src/asn1/cmp/CertReqTemplateContent.cs
@@ -0,0 +1,66 @@
+using System;
+
+using Org.BouncyCastle.Asn1.Crmf;
+
+namespace Org.BouncyCastle.Asn1.Cmp
+{
+    /**
+     * GenMsg:    {id-it 19}, < absent >
+     * GenRep:    {id-it 19}, CertReqTemplateContent | < absent >
+     * <p>
+     * CertReqTemplateValue  ::= CertReqTemplateContent
+     * <p>
+     * CertReqTemplateContent ::= SEQUENCE {
+     * certTemplate           CertTemplate,
+     * keySpec                Controls OPTIONAL }
+     * <p>
+     * Controls  ::= SEQUENCE SIZE (1..MAX) OF AttributeTypeAndValue
+     */
+    public class CertReqTemplateContent
+        : Asn1Encodable
+    {
+        public static CertReqTemplateContent GetInstance(object obj)
+        {
+            if (obj is CertReqTemplateContent certReqTemplateContent)
+                return certReqTemplateContent;
+
+            if (obj != null)
+                return new CertReqTemplateContent(Asn1Sequence.GetInstance(obj));
+
+            return null;
+        }
+
+        private readonly CertTemplate m_certTemplate;
+        private readonly Asn1Sequence m_keySpec;
+
+        private CertReqTemplateContent(Asn1Sequence seq)
+        {
+            if (seq.Count != 1 && seq.Count != 2)
+                throw new ArgumentException("expected sequence size of 1 or 2");
+
+            m_certTemplate = CertTemplate.GetInstance(seq[0]);
+
+            if (seq.Count > 1)
+            {
+                m_keySpec = Asn1Sequence.GetInstance(seq[1]);
+            }
+        }
+
+        public CertReqTemplateContent(CertTemplate certTemplate, Asn1Sequence keySpec)
+        {
+            m_certTemplate = certTemplate;
+            m_keySpec = keySpec;
+        }
+
+        public virtual CertTemplate CertTemplate => m_certTemplate;
+
+        public virtual Asn1Sequence KeySpec => m_keySpec;
+
+        public override Asn1Object ToAsn1Object()
+        {
+            Asn1EncodableVector v = new Asn1EncodableVector(m_certTemplate);
+            v.AddOptional(m_keySpec);
+            return new DerSequence(v);
+        }
+    }
+}