Paper 2016/1075 Original: eprint.iacr.org/2016/1075 ↗

Cryptanalysis of Simple Matrix Scheme for Encryption

Gu Chunsheng
Abstract

Recently, Tao et al. presented a new simple and efficient multivariate pubic key encryption scheme based on matrix multiplica- tion, which is called Simple Matrix Scheme or ABC. Using linearization method, we propose a polynomial time algorithm, which directly solves an equivalent private key from the public key of ABC. Furthermore, our attack can also be applied to the variants of ABC since these variants have the same algebraic structure as the ABC scheme. Therefore, the ABC cryptosystem and its variants are insecure.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint.
History
2017-11-30: last updated
2016-11-17: published
Short URL
https://ia.cr/2016/1075
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2016/1075,
      author = {Gu Chunsheng},
      title = {Cryptanalysis of Simple Matrix Scheme for Encryption},
      howpublished = {Cryptology {ePrint} Archive, Paper 2016/1075},
      year = {2016},
      url = {https://eprint.iacr.org/2016/1075}
}
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