Questions tagged [deniable-encryption]

Deniable encryption is a type of cryptography that allows an encrypted text to be decrypted in two or more ways, depending on which decryption key is used.

Deniable encryption is a type of cryptography that allows an encrypted text to be decrypted in two or more ways, depending on which decryption key is used. Normally ciphertexts decrypt to a single plaintext and hence once decrypted, the encryption user cannot claim that he encrypted a different message. Deniable encryption allows its users to decrypt the ciphertext to produce a different (innocuous but plausible) plaintext and insist that it is what they encrypted. The holder of the ciphertext will not have the means to differentiate between the true plaintext, and the bogus plaintext.

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Ciphers providing Deniable encryption?

I stumbled on the concept of Deniable encryption on Wikipedia, with the following scenario: Deniable encryption allows the sender of an encrypted message to deny sending that message. This requires a trusted third party. A possible scenario…
J. Avod
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Can direct sums be used for deniable encryption?

So I've recently become acquainted with deniable encryption and I got to thinking, wouldn't a way to do this involve using a group that can be decomposed into direct summands which already have well-established cryptosystems using a one-way…
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Authentication and deniability

I have the following problem: Alice wants to send Bob a message such that Bob knows it is from Alice but at the same time he cannot prove that Alice send him this message. The solution I came up with, using RSA, is: Alice picks a random key K, and…
user11693
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Drawbacks of Deniable Encryption

What are the drawbacks of an encryption scheme being a deniable encryption scheme? Is there a generalized approach to convert an encryption scheme $\pi$ to $\pi'$ which will be a deniable encryption scheme?