2967 search results - page 264 / 594 » Cryptology |
182
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FC
2006
Springer
15 years 10 months ago
2006
Springer
Abstract. At FC'05, Chen et al. introduced an elegant privacy protecting coupon (PPC) system, CESSS05 [13], in which users can purchase multi-coupons and redeem them unlinkabl...
175
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FC
2006
Springer
15 years 10 months ago
2006
Springer
Abstract. We introduce the notion of tamper-evidence for mix networks in order to defend against attacks aimed at covertly leaking secret information held by corrupted mix servers....
164
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FC
2006
Springer
15 years 10 months ago
2006
Springer
In many content distribution systems it is important both to restrict access to content to authorized users and to protect the identities of these users. We discover that current s...
192
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FC
2006
Springer
15 years 10 months ago
2006
Springer
In this paper we consider two security notions related to Identity Based Encryption: Key-insulated public key encryption, introduced by Dodis, Katz, Xu and Yung; and Timed-Release ...
187
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FC
2006
Springer
15 years 10 months ago
2006
Springer
In this paper, we present two failures in the blind signatures based voting system Votopia [2] which has been tested during the last World Soccer Cup. We then propose a fix which r...