signature: Fixing bug with signature specification
git-svn-id: svn+ssh://dyadis.cs.arizona.edu/NDN-spec/spec-sphinx@195 c5937c81-b952-4fd9-96ba-3036b240b622
diff --git a/signature.rst b/signature.rst
index f061dea..02fa20d 100644
--- a/signature.rst
+++ b/signature.rst
@@ -88,8 +88,11 @@
SIGNATURE-TYPE-TYPE TLV-LENGTH(=1) 1
KeyLocator
- SignatureValue ::= BYTE{32}(=RSA over SHA256{Name, MetaInfo, Content, SignatureInfo})
+ SignatureValue ::= BYTE+(=RSA over SHA256{Name, MetaInfo, Content, SignatureInfo})
+.. note::
+
+ SignatureValue size varies (typically 128 or 256 bytes) depending on the private key length used during the signing process.
This type of signature ensures strict provenance of a Data packet, provided that the signature verifies and signature issuer is authorized to sign the Data packet.
The signature issuer is idenfified using :ref:`KeyLocator` block in :ref:`SignatureInfo <Signature>` block of ``SignatureSha256WithRsa``.