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'''Replayable CCA security''' ('''RCCA security''') is a security notion in [[cryptography]] that relaxes the older notion of Security against [[Chosen-ciphertext attack|Chosen-Ciphertext Attack]] (CCA, more precisely [[Adaptive chosen-ciphertext attack|''adaptive'' security notion CCA2]]): all CCA-secure systems are RCCA secure but the converse is not true. The claim is that for a lot of use cases, CCA is too strong and RCCA suffices.<ref>Ran Canetti, Hugo Krawczyk, Jesper B. Nielsen, ''Relaxing Chosen-Ciphertext Security''. 2003 eprint archive [https://eprint.iacr.org/2003/174.pdf]</ref> Nowadays a certain amount of cryptographic scheme are proved RCCA-secure instead of CCA secure. It was introduced in 2003 in a research publication by [[Ran Canetti]], Hugo Krawczyk and Jesper B. Nielsen. |
'''Replayable CCA security''' ('''RCCA security''') is a security notion in [[cryptography]] that relaxes the older notion of Security against [[Chosen-ciphertext attack|Chosen-Ciphertext Attack]] (CCA, more precisely [[Adaptive chosen-ciphertext attack|''adaptive'' security notion CCA2]]): all CCA-secure systems are RCCA secure but the converse is not true. The claim is that for a lot of use cases, CCA is too strong and RCCA suffices.<ref>Ran Canetti, Hugo Krawczyk, Jesper B. Nielsen, ''Relaxing Chosen-Ciphertext Security''. 2003 eprint archive [https://eprint.iacr.org/2003/174.pdf]</ref> Nowadays a certain amount of cryptographic scheme are proved RCCA-secure instead of CCA secure. It was introduced in 2003 in a research publication by [[Ran Canetti]], Hugo Krawczyk and Jesper B. Nielsen. |
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Revision as of 18:17, 31 May 2020
 | This article relies largely or entirely on a single source. (March 2019) |
Replayable CCA security (RCCA security) is a security notion in cryptography that relaxes the older notion of Security against Chosen-Ciphertext Attack (CCA, more precisely adaptive security notion CCA2): all CCA-secure systems are RCCA secure but the converse is not true. The claim is that for a lot of use cases, CCA is too strong and RCCA suffices.[1] Nowadays a certain amount of cryptographic scheme are proved RCCA-secure instead of CCA secure. It was introduced in 2003 in a research publication by Ran Canetti, Hugo Krawczyk and Jesper B. Nielsen.
References
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