242 search results - page 27 / 49 » Randomness in Cryptography |
PKC
2007
Springer
15 years 3 months ago
2007
Springer
We present new and efficient key-recovery chosen-ciphertext attacks on NTRUencrypt. Our attacks are somewhat intermediate between chosen-ciphertext attacks on NTRUencrypt previousl...
CTRSA
2004
Springer
15 years 3 months ago
2004
Springer
Abstract. In this paper, we give a first example of identity based undeniable signature using pairings over elliptic curves. We extend to the identity based setting the security m...
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EUROCRYPT
2004
Springer
15 years 3 months ago
2004
Springer
An aggregate signature scheme (recently proposed by Boneh, Gentry, Lynn, and Shacham) is a method for combining n signatures from n different signers on n different messages int...
EUROCRYPT
2004
Springer
15 years 3 months ago
2004
Springer
We prove a tight lower bound for generic protocols for secure multicast key distribution where the messages sent by the group manager for rekeying the group are obtained by arbitra...
PKC
2004
Springer
15 years 3 months ago
2004
Springer
Abstract. In this paper, we examine issues related to the construction of identity-based threshold decryption schemes and argue that it is important in practice to design an identi...