Title
Protean Signature Schemes
Authors
Stephan Krenn (AIT), Henrich C. Pöhls (UNI PASSAU), Kai Samelin (IBM Research Zurich), Daniel Slamanig (AIT)
Abstract
We introduce the notion of Protean Signature schemes. This novel type of signature scheme allows to remove and edit signer-chosen parts of signed messages by a semi-trusted third party simultaneously.