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A Black-Box Construction of Non-malleable Encryption from Semantically Secure Encryption
2017
Journal of Cryptology
We show how to transform any semantically secure encryption scheme into a non-malleable one, with a black-box construction that achieves a quasi-linear blow-up in the size of the ciphertext. This improves upon the previous non-black-box construction of Pass, Shelat and Vaikuntanathan (Crypto '06). Our construction also extends readily to guarantee nonmalleability under a bounded-CCA2 attack, thereby simultaneously improving on both results in the work of Cramer et al. (Asiacrypt '07). Our
doi:10.1007/s00145-017-9254-z
fatcat:bkvf747hdvauln3sjcqnq4yde4