1 files changed, 6 insertions, 1 deletions
diff --git a/crypto/src/asn1/DerIA5String.cs b/crypto/src/asn1/DerIA5String.cs
index 14fefa941..c23a4835a 100644
--- a/crypto/src/asn1/DerIA5String.cs
+++ b/crypto/src/asn1/DerIA5String.cs
@@ -100,7 +100,12 @@ namespace Org.BouncyCastle.Asn1
             return Strings.ToAsciiByteArray(str);
         }
 
-		internal override void Encode(Asn1OutputStream asn1Out, bool withID)
+        internal override int EncodedLength(bool withID)
+        {
+            return Asn1OutputStream.GetLengthOfEncodingDL(withID, str.Length);
+        }
+
+        internal override void Encode(Asn1OutputStream asn1Out, bool withID)
         {
             asn1Out.WriteEncodingDL(withID, Asn1Tags.IA5String, GetOctets());
         }