4529 search results - page 112 / 906 » Position Based Cryptography |
186
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HIP
2005
Springer
16 years 7 days 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...
172
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WCC
2005
Springer
16 years 5 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...
159
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ACNS
2004
Springer
16 years 3 days ago
2004
Springer
A family of authenticators based on static shared keys is identified and proven secure. The authenticators can be used in a variety of settings, including identity-based ones. App...
234
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ACRI
2004
Springer
16 years 3 days ago
2004
Springer
Cellular automata (CA) are highly parallel and discrete dynamical systems, whose behavior is completely specified in terms of a local relation. They were successfully applied for s...
160
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CHES
2004
Springer
16 years 3 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...