Adaptive Chosen Ciphertext Secure Threshold Key Escrow Scheme from Pairing
نویسندگان
چکیده
منابع مشابه
Adaptive Chosen Ciphertext Secure Threshold Key Escrow Scheme from Pairing
This paper proposes a threshold key escrow scheme from pairing. It tolerates the passive adversary to access any internal data of corrupted key escrow agents and the active adversary that can make corrupted servers to deviate from the protocol. The scheme is secure against threshold adaptive chosen-ciphertext attack. The formal proof of security is presented in the random oracle model, assuming...
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Recently, at Crypto 2008, Boneh, Halevi, Hamburg, and Ostrovsky (BHHO) solved the longstanding open problem of “circular encryption,” by presenting a public key encryption scheme and proving that it is semantically secure against key dependent chosen plaintext attack (KDMCPA security) under standard assumptions (and without resorting to random oracles). However, they left as an open problem tha...
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This paper proposes an identity-based threshold key escrow scheme. The scheme is secure against identity-based threshold chosen-plaintext attack. It tolerates the passive adversary to access data of corrupted key escrow agency servers and the active adversary that can modify corrupted servers’ keys. The formal proof of security is presented in the random oracle model, assuming the Bilinear Diff...
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ژورنال
عنوان ژورنال: Informatica
سال: 2006
ISSN: 0868-4952,1822-8844
DOI: 10.15388/informatica.2006.152