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

Pavol Zajac

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: cryptanalysis public-key cryptography McEliece cryptosystem
Contact author(s): pavol zajac @ stuba sk
History: 2014-08-27: received
Short URL: https://ia.cr/2014/651
License: CC BY

BibTeX

@misc{cryptoeprint:2014/651,
      author = {Pavol Zajac},
      title = {A note on {CCA2}-protected {McEliece} Cryptosystem with a systematic public key},
      howpublished = {Cryptology {ePrint} Archive, Paper 2014/651},
      year = {2014},
      url = {https://eprint.iacr.org/2014/651}
}