Xavier Boyen, Hovav Shacham, Emliy Shen, and Brent Waters Forward-Secure Signatures with Untrusted Update in ACM Computer and Communications Security - CCS '06, 2006.
Xavier Boyen, Hovav Shacham, Emily Shen, and Brent Waters, Forward-Secure Signatures with Untrusted Update, in ACM Computer and Communications Security - CCS '06, 2006.