67 search results - page 12 / 14 » A Threshold GQ Signature Scheme |
ACNS
2006
Springer
14 years 1 months ago
2006
Springer
Abstract. Several researchers have proposed the use of threshold cryptographic model to enable secure communication in ad hoc networks without the need of a trusted center. In this...
NDSS
2003
IEEE
14 years 2 months ago
2003
IEEE
In this work we revisit and formally study the notion of proxy cryptography. Intuitively, various proxy functions allow two cooperating parties F (the “FBI”) and P (the “pro...
ASIACRYPT
2000
Springer
14 years 2 months ago
2000
Springer
Assuming a cryptographically strong cyclic group G of prime order q and a random hash function H, we show that ElGamal encryption with an added Schnorr signature is secure against ...
CCS
2007
ACM
14 years 3 months ago
2007
ACM
In ciphertext policy attribute-based encryption (CP-ABE), every secret key is associated with a set of attributes, and every ciphertext is associated with an access structure on a...
CRYPTO
1994
Springer
14 years 1 months ago
1994
Springer
Suppose we are given a proof of knowledge P in which a prover demonstrates that he knows a solution to a given problem instance. Suppose also that we have a secret sharing scheme S...