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Preprint / Version 6

Băhēm: A Symmetric Cipher with Provable 128-bit Security

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DOI:

https://doi.org/10.31224/2278

Keywords:

secret-key cryptography, cryptanalysis, one-way functions

Abstract

This paper proposes a symmetric that is practical (requires to pre-share only 128-bit key), provably secure (no cryptanalysis can degrade its security below 128 bits, even with quantum computing or if P=NP), simple (can be performed manually by a pen-and-paper; helpful for a post-apocalypse world scenario) and fast (similar run-time to OpenSSL's ChaCha20).

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Posted

2022-04-14 — Updated on 2022-05-09

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Copyright (c) 2022 M Rajululkahf

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This work is licensed under a Creative Commons Attribution 4.0 International License.