[Resource Topic] 2022/1677: Quagmire ciphers and group theory: What is a Porta cipher?

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Title:
Quagmire ciphers and group theory: What is a Porta cipher?

Authors: Thomas Kaeding

Abstract:

It is an involutory (self-reciprocal) quagmire 4 cipher. Furthermore, it is isomorphic to a Beaufort. Explicit keys and transformations are provided.

ePrint: https://eprint.iacr.org/2022/1677

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