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Paper 2014/651

A note on CCA2-protected McEliece Cryptosystem with a systematic public key

Pavol Zajac

Abstract

We show that the plaintext of some of the proposed CCA2 conversions of McEliece cryptosystem with a public key in systematic form can be recovered faster than with a general linear decoding. This is due to the fact that an attacker only needs to recover a part of the cleartext to decrypt the relevant plaintext.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint. MINOR revision.
Keywords
cryptanalysispublic-key cryptographyMcEliece cryptosystem
Contact author(s)
pavol zajac @ stuba sk
History
2014-08-27: received
Short URL
https://ia.cr/2014/651
License
Creative Commons Attribution
CC BY
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