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A new family of rank codes and applications to cryptography

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4 Author(s)
Gabidulin, Ernst ; Moscow Inst. of Phys. & Technol., Russia ; Ourivski, A. ; Honary, B. ; Ammar, B.

We present a new family of so called reducible rank codes. For lengths n that are multiples of N the family contains optimal codes over FN. A public key cryptosystem using these codes is proposed. To make the system resistant to structural attacks, row and column scramblers are used, as well as a special form of distortion matrix. A preliminary analysis shows that the system is secure against known attacks for keys greater than 20 Kbits.

Published in:

Information Theory, 2002. Proceedings. 2002 IEEE International Symposium on

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