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CRYPTO
2000
Springer
151views Cryptology» more  CRYPTO 2000»
14 years 11 days ago
New Public-Key Cryptosystem Using Braid Groups
Abstract. The braid groups are infinite non-commutative groups naturally arising from geometric braids. The aim of this article is twofold. One is to show that the braid groups ca...
Ki Hyoung Ko, Sangjin Lee, Jung Hee Cheon, Jae Woo...
EUROCRYPT
2001
Springer
14 years 15 days ago
A Secure Three-Move Blind Signature Scheme for Polynomially Many Signatures
Abstract. Known practical blind signature schemes whose security against adaptive and parallel attacks can be proven in the random oracle model either need five data exchanges bet...
Masayuki Abe
ASIACRYPT
1999
Springer
14 years 9 days ago
Approximation Hardness and Secure Communication in Broadcast Channels
Problems of secure communication and computation have been studied extensively in network models. Goldreich, Goldwasser, and Linial, Franklin and Yung, and Franklin and Wright have...
Yvo Desmedt, Yongge Wang
CRYPTO
2004
Springer
138views Cryptology» more  CRYPTO 2004»
14 years 1 months ago
Secure Identity Based Encryption Without Random Oracles
We construct two efficient Identity Based Encryption (IBE) systems that are selective identity secure without the random oracle model. Selective identity secure IBE is a slightly w...
Dan Boneh, Xavier Boyen
EUROCRYPT
2006
Springer
13 years 11 months ago
Compact Group Signatures Without Random Oracles
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...
Xavier Boyen, Brent Waters