supported in part by the National Natural Science Foundation of China(No.61262057,No.61063041,No.61163038);the Young Teachers’Scientific Research Ability Promotion Program of Northwest Normal University(No.NWNU-LKQN-10-22)
To improve the performance of threshold proxy re-signatures, the notion of on-line/off-line threshold proxy re-signatures is introduced. The bulk of re-signature computation can be done in the off-line phase before th...
Supported by the National Natural Science Foundation of China(No.61179026,61262057);the Fundamental Research Funds of the Central Universities of China(No.ZXH2012K003,3122013K001)
Two constructions of cartesian authentication codes from unitary geometry are given in this paper. Their size parameters and their probabilities of successful impersonation attack and successful substitution attack ar...