Cryptology ePrint Archive: Report 2004/047
On a zero-knowledge property of arguments of knowledge based on secure public key encryption schemes
Abstract: This paper considers a weak variant on the notion of zero-knowledge.
The weak notion is compatible with the chosen ciphertext security.
In fact, arguments of knowledge based on IND-CCA encryption schemes
are shown to be statistical zero-knowledge in that sense.
Category / Keywords: foundations / foundations, identification protocols, public-key cryptography, zero knowledge
Date: received 18 Feb 2004, last revised 21 Feb 2004
Contact author: yodai at brain riken jp
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Version: 20040221:213116 (All versions of this report)
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