136 search results - page 7 / 28 » Security Proofs for Identity-Based Identification and Signat... |
ASIACRYPT
2006
Springer
13 years 10 months ago
2006
Springer
The group signature scheme [1], ACJT for short, is popular. In this paper we show that it is not secure. It does not satisfy exculpability. The group manager can sign on behalf of ...
CRYPTO
2006
Springer
13 years 10 months ago
2006
Springer
We present an identity-based cryptosystem that features fully anonymous ciphertexts and hierarchical key delegation. We give a proof of security in the standard model, based on the...
ACNS
2008
Springer
14 years 1 months ago
2008
Springer
Abstract. Very recently, the concept of Traceable Identity-based Encryption (IBE) scheme (or Accountable Authority Identity based Encryption scheme) was introduced in Crypto 2007. ...
CTRSA
2010
Springer
13 years 10 months ago
2010
Springer
This paper presents a new identity based key agreement protocol. In id-based cryptography (introduced by Adi Shamir in [33]) each party uses its own identity as public key and rece...
SP
2009
IEEE
14 years 1 months ago
2009
IEEE
We present two machine-checked proofs of the existential unforgeability under adaptive chosen-message attacks of the Full Domain Hash signature scheme. These proofs formalize the ...