Cryptanalysis of the CFVZ cryptosystem

J.  J.  Climent; E.  Gorla; J.  Rosenthal

Paper 2006/053 Original: eprint.iacr.org/2006/053 ↗

Cryptanalysis of the CFVZ cryptosystem

J. J. Climent

E. Gorla

J. Rosenthal

Abstract

The paper analyzes a new public key cryptosystem whose security is based on a matrix version of the discrete logarithm problem over an elliptic curve. It is shown that the complexity of solving the underlying problem for the proposed system is dominated by the complexity of solving a fixed number of discrete logarithm problems in the group of an elliptic curve. Using an adapted Pollard rho algorithm it is shown that this problem is essentially as hard as solving one discrete logarithm problem in the group of an elliptic curve.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Preprint.
History: 2006-02-14: last updated; 2006-02-14: published
Short URL: https://ia.cr/2006/053
License: https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2006/053,
      author = {J.  J.  Climent and E.  Gorla and J.  Rosenthal},
      title = {Cryptanalysis of the CFVZ cryptosystem},
      howpublished = {Cryptology {ePrint} Archive, Paper 2006/053},
      year = {2006},
      url = {https://eprint.iacr.org/2006/053}
}