http://www.rfc-editor.org/rfc/rfc4050.txt
RFC 4050: Using the Elliptic Curve Signature Algorithm (ECDSA) for XML Digital Signatures, S. Blake-Wilson, G. Karlinger, T. Kobayashi, Y. Wang2005-04-01T23:00:00-00:00This document specifies how to use Elliptic Curve Digital Signature Algorithm (ECDSA) with XML Signatures. The mechanism specified provides integrity, message authentication, and/or signer authentication services for data of any type, whether located within the XML that includes the signature or included by reference. This memo provides information for the Internet community.