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Article
Improved preimage attack on 3-pass HAVAL
HAVAL is a hash function proposed by Zheng et al. in 1992, including 3-, 4- and 5-pass versions. We improve pseudo-preimage and preimage attacks on 3-pass HAVAL at the complexity of 2172 and 2209.6, respectively,...
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Article
On the security of multivariate hash functions
Multivariate hash functions are a type of hash functions whose compression function is explicitly defined as a sequence of multivariate equations. Billet et al designed the hash function MQ-HASH and Ding et al pr...
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Article
Formal analysis of authentication in 802.11i
Authentication is the basis of the security of IEEE 802.11i standard. The authentication process in 802.11i involves two important protocols: a 4-way handshake and a group key handshake. A formal analysis of a...
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Article
The gap between intractable problem and adaptive chosen ciphertext security
To describe the design approaches of IND-CCA2 (adaptive chosen ciphertext attack) secure public key encryption schemes systematically, the gaps between different kinds of intractable problems and IND-CCA2 secu...
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Article
On constructing certificateless proxy signature from certificateless signature
In proxy signature schemes, an original signer A delegates its signing capability to a proxy signer B, in such a way that B can sign message on behalf of A. The recipient of the final message verifies at the same...
