50 search results - page 2 / 10 » Cryptanalysis of Two Group Signature Schemes |
COMPSEC
2004
13 years 5 months ago
2004
In a (t, n) threshold proxy signature scheme, which is a variant of the proxy signature scheme, the proxy signature key is shared among a group of n proxy signers delegated by the ...
ACNS
2003
Springer
13 years 10 months ago
2003
Springer
A (t, n) threshold signature scheme allows t or more group members to generate signatures on behalf of a group with n members, while any t−1 or less members cannot do the same th...
INFORMATICALT
2000
13 years 5 months ago
2000
Recently, Harn proposed an efficient scheme that can batch verification multiple RSA digital signatures. His scheme can reduce signature verification time. However, there is a weak...
JOC
2008
13 years 5 months ago
2008
We describe two different attacks against the iso/iec 9796-1 signature standard for RSA and Rabin. Both attacks consist in an existential forgery under a chosen-message attack: the...
ACISP
2005
Springer
13 years 11 months ago
2005
Springer
A blind signature scheme is a protocol for obtaining a digital signature from a signer, but the signer can neither learn the messages he/she sign nor the signatures the recipients ...