1562 search results - page 144 / 313 » Mathematics, Cryptology, Security |
175
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EUROCRYPT
2003
Springer
15 years 11 months ago
2003
Springer
We introduce captcha, an automated test that humans can pass, but current computer programs can’t pass: any program that has high success over a captcha can be used to solve an u...
158
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EUROCRYPT
2003
Springer
15 years 11 months ago
2003
Springer
Cryptographic computations are often carried out on insecure devices for which the threat of key exposure represents a serious concern. Forward security allows one to mitigate the...
166
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EUROCRYPT
2004
Springer
15 years 11 months ago
2004
Springer
Abstract. We propose a simple and efficient construction of a CCAsecure public-key encryption scheme from any CPA-secure identity-based encryption (IBE) scheme. Our construction re...
135
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FSE
2004
Springer
15 years 11 months ago
2004
Springer
SecurID is a widely used hardware token for strengthening authentication in a corporate environment. Recently, Biryukov, Lano, and Preneel presented an attack on the alleged SecurI...
180
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ACNS
2003
Springer
15 years 11 months ago
2003
Springer
A (t, n) threshold signature scheme allows t or more group members to generate signatures on behalf of a group with n members, while any t−1 or less members cannot do the same th...