876 search results - page 29 / 176 » Limits on the Usefulness of Random Oracles |
ASIACRYPT
2006
Springer
14 years 2 months ago
2006
Springer
Non-interactive zero-knowledge proofs play an essential role in many cryptographic protocols. We suggest several NIZK proof systems based on prime order groups with a bilinear map...
AFRICACRYPT
2010
Springer
14 years 2 months ago
2010
Springer
Abstract. Proxy re-encryption (PRE) allows a semi-trusted proxy to convert a ciphertext originally intended for Alice into one encrypting the same plaintext for Bob. The proxy only...
EUROCRYPT
2008
Springer
14 years 15 days ago
2008
Springer
Standard security notions for encryption schemes do not guarantee any security if the encrypted messages depend on the secret key. Yet it is exactly the stronger notion of security...
ACNS
2011
Springer
13 years 2 months ago
2011
Springer
The increasing use of computing devices for social interactions propels the proliferation of online social applications, yet, it prompts a number of privacy concerns. One common p...
IACR
2011
12 years 10 months ago
2011
Companies, organizations, and individuals often wish to share information to realize valuable social and economic goals. Unfortunately, privacy concerns often stand in the way of ...