Group signature schemes are cryptographic systems that provide revocable anonymity for signers. We propose a group signature scheme with constant-size public key and signature leng...
We provide the first description of and security model for authenticated key exchange protocols with predicate-based authentication. In addition to the standard goal of session ke...
We offer cryptanalysis of a key exchange scheme due to Stickel [11], which was inspired by the well-known Diffie-Hellman protocol. We show that Stickel's choice of platform (t...
Abstract: ZRTP is a protocol designed to set up a shared secret between two communication parties which is subsequently used to secure the media stream (i.e. the audio data) of a V...
Martin Petraschek, Thomas Hoeher, Oliver Jung, Hel...
The Unified Model (UM) key agreement protocol is an efficient Diffie-Hellman scheme that has been included in many cryptographic standards, most recently in the NIST SP 80056A sta...