Reliable multicast delivery requires that a multicast message be received by all members in a group. Hence certain or all members need to buffer messages for possible retransmissi...
In this paper, we propose a pairing-based signcryption scheme for authenticated broadcasting, which requires less computation than a previously proposed scheme suggesting identity...
Abstract. Many protocols rely on audit trails to allow an impartial judge to verify a posteriori some property of a protocol run. However, in current practice the choice of what da...
Abstract. We formally analyze the family of entity authentication protocols defined by the ISO/IEC 9798 standard and find numerous weaknesses, both old and new, including some th...
Abstract. Artin's braid groups currently provide a promising background for cryptographical applications, since the first cryptosystems using braids were introduced in [2, 3, ...