362 search results - page 22 / 73 » Abstraction in Cryptography |
HIP
2005
Springer
14 years 1 months ago
2005
Springer
Abstract. Current CAPTCHAs require users to solve objective questions such as text recognition or image recognition. We propose a class of CAPTCHAs based on collaborative filterin...
WCC
2005
Springer
14 years 29 days ago
2005
Springer
Abstract. The recently developed algebraic attacks apply to all keystream generators whose internal state is updated by a linear transition function, including LFSR-based generator...
CHES
2004
Springer
14 years 27 days ago
2004
Springer
Abstract. A digit-serial, multiplier-accumulator based cryptographic coprocessor architecture is proposed, similar to fix-point DSP's with enhancements, supporting long modula...
PKC
2004
Springer
14 years 26 days ago
2004
Springer
Abstract. In this paper, we provide the first committed signature provably secure in the standard complexity model based on the strong RSA assumption. The idea behind the construc...
EUROCRYPT
2003
Springer
14 years 22 days ago
2003
Springer
Abstract. In this paper we present a simpler construction of a publickey encryption scheme that achieves adaptive chosen ciphertext security (CCA2), assuming the existence of trapd...