Cryptanalysis of group-based key agreement protocols using subgroup distance functions

Details Cryptanalysis of group-based key agreement protocols using subgroup distance functions Cryptanalysis of group-based key agreement protocols using subgroup distance functions

2007-05-20

arxiv.org/abs/0705.2862v2

Proceedings of the 10th International Conference on Practice and Theory in Public-Key Cryptography PKC07, Lecture Notes In Com

Computer Science

Cryptography and Security

Scientific paper

10.1007/978-3-540-71677-8_5

We introduce a new approach for cryptanalysis of key agreement protocols
based on noncommutative groups. This approach uses functions that estimate the
distance of a group element to a given subgroup. We test it against the
Shpilrain-Ushakov protocol, which is based on Thompson's group F.

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