1 files changed, 5 insertions, 0 deletions
diff --git a/crypto/src/asn1/DerOctetString.cs b/crypto/src/asn1/DerOctetString.cs
index f865abff8..bdabb8221 100644
--- a/crypto/src/asn1/DerOctetString.cs
+++ b/crypto/src/asn1/DerOctetString.cs
@@ -22,6 +22,11 @@ namespace Org.BouncyCastle.Asn1
         {
         }
 
+        internal override int EncodedLength(bool withID)
+        {
+            return Asn1OutputStream.GetLengthOfEncodingDL(withID, str.Length);
+        }
+
         internal override void Encode(Asn1OutputStream asn1Out, bool withID)
         {
             asn1Out.WriteEncodingDL(withID, Asn1Tags.OctetString, str);