4529 search results - page 109 / 906 » Position Based Cryptography |
153
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TCC
2010
Springer
16 years 3 months ago
2010
Springer
We construct public-key cryptosystems that remain secure even when the adversary is given any computationally uninvertible function of the secret key as auxiliary input (even one t...
149
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FC
2009
Springer
16 years 22 days ago
2009
Springer
This paper presents a hierarchy of privacy notions that covers multiple anonymity and unlinkability variants. The underlying definitions, which are based on the idea of indistingu...
148
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ACNS
2008
Springer
16 years 16 days ago
2008
Springer
Abstract. Conditional e-cash or conditional e-payments have been introduced by Shi et al. as the means for enabling electronic payments to be based on the outcome of a certain cond...
158
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AINA
2007
IEEE
16 years 16 days ago
2007
IEEE
This paper presents a distributed user authentication scheme in wireless sensor networks. Our scheme is based on the self-certified keys cryptosystem (SCK), and we have modified i...
148
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EUROCRYPT
2007
Springer
16 years 10 days ago
2007
Springer
This paper presents an off-line divisible e-cash scheme where a user can withdraw a divisible coin of monetary value 2L that he can parceled and spend anonymously and unlinkably. ...