23 search results - page 3 / 5 » Provable Partial Key Escrow |
TCS
2008
13 years 7 months ago
2008
A time-bound hierarchical key assignment scheme is a method to assign time-dependent encryption keys to a set of classes in a partially ordered hierarchy, in such a way that each ...
CRYPTO
2008
Springer
13 years 9 months ago
2008
Springer
Abstract. This paper discusses key recovery and universal forgery attacks on several MAC algorithms based on universal hash functions. The attacks use a substantial number of verif...
CIS
2005
Springer
14 years 1 months ago
2005
Springer
Restrictive blind signatures allow a recipient to receive a blind signature on a message not known to the signer but the choice of message is restricted and must conform to certain...
DCC
2003
IEEE
14 years 7 months ago
2003
IEEE
Nguyen and Shparlinski recently presented a polynomial-time algorithm that provably recovers the signer's secret DSA key when a few bits of the random nonces k (used at each s...
JOC
2002
13 years 7 months ago
2002
We present a polynomial-time algorithm that provably recovers the signer's secret DSA key when a few bits of the random nonces k (used at each signature generation) are known ...