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International Journal of

Recent Trends in Engineering

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International Journal of Recent Trends in Engineering (IJRTE)

ISSN 1797-9617

Volume 1, Number 1, May 2009

Issue on Computer Science

Page(s): 668-671

Sender-Side Public Key Deniable Encryption Scheme

Jaydeep Howlader and Deepa Naik

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Abstract

Consider a situation in which the transmission of encrypted message is intercepted by an adversary who can later ask the sender to reveal the random choices (and also the secrete key, if one exists) used in generating the cipher text, thereby exposing the plaintext. An encryption scheme is deniable if the sender can generate `fake random choice` that will make the cipher text `look like` an encryption of a different plaintext, thus keeping the real plaintext private. Analogous requirements can be formulated with respect to attacking the receiver and with respect to attacking both parties. In this paper we propose a scheme for the sender side deniable encryption.

Index Terms

deniable encryption, public key encryption, quadratic residue, probabilistic encryption

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