Fully Bideniable Public-Key Encryption

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Provided by: Charles University
Topic: Security
Format: PDF
Bideniable encryption allows both sender and receiver in a public-key setting to simultaneously claim that a different message of their choice was transmitted, and support this claim by a good-looking encryption and key-generation randomness, respectively. A weaker version with two variants of algorithms is called flexible or multi-distributional deniability, a stronger one-algorithm version is called full deniability. The researcher (ASIACRYPT 2011) showed that certain kinds of fully-deniable schemes are constructible using corresponding flexible schemes.
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