Cryptanalysis of McEliece’s Public-Key Cryptosystem
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An approach is proposed for the cryptanalysis of the well-known version of McEliece’s public-key cryptosystem that is based on a new iterative optimization algorithm for decoding an arbitrary linear code. The algorithm provides guaranteed correction of all error patterns with Hamming weight less than d/2, where d is the minimum distance of the code, and has time complexity about O(n3) where n is the block length. The approach is illustrated by the cryptanalysis of McEliece’s system when a (63, 36) binary code with d = 11 is the underlying linear code.
KeywordsLinear Code Code Word Error Pattern Decode Algorithm Binary Word
- A. I. Turkin and V. I. Korzhik, The practically-optimal decoding algorithm for arbitrary linear codes over a BSC with polynomial time complexity, to be presented at the IEEE Intl. Symp. Info. Th., Budapest, June 1991.Google Scholar