241 search results - page 8 / 49 » Machine-Checked Security Proofs of Cryptographic Signature S... |
JCS
2010
13 years 7 months ago
2010
raction of cryptographic operations by term algebras, called Dolev-Yao models, is essential in almost all tool-supported methods for proving security protocols. Recently significa...
EUROCRYPT
2006
Springer
14 years 7 days ago
2006
Springer
We present the first efficient group signature scheme that is provably secure without random oracles. We achieve this result by combining provably secure hierarchical signatures i...
PODC
2011
ACM
12 years 11 months ago
2011
ACM
We present a cryptographic framework to achieve access control, privacy of social relations, secrecy of resources, and anonymity of users in social networks. The main idea is to u...
ASIACRYPT
2000
Springer
14 years 28 days 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 ...
ACNS
2008
Springer
14 years 2 months ago
2008
Springer
We describe two new paradigms on how to obtain ordinary signatures that are secure against existential forgery under adaptively chosen message attacks (fully-secure, in short), fro...