Improved Security Bounds for Generalized Feistel Networks

Improved Security Bounds for Generalized Feistel Networks

We revisit the security of various generalized Feistel networks. Concretely, for unbalanced, alternating, type-1, type-2, and type-3 Feistel networks built from random functions, we substantially improve the coupling analyzes of Hoang and Rogaway (CRYPTO 2010). For a tweakable blockcipher-based gen...

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Bibliographic Details
Main Authors: Yaobin Shen, Chun Guo, Lei Wang
Format: Article
Language:English
Published: Ruhr-Universität Bochum 2020-05-01
Series:IACR Transactions on Symmetric Cryptology
Subjects:
Block ciphers
Coupling
Tweakable block ciphers
Generalized Feistel networks
Provable security
Mode of operation
Online Access:https://tosc.iacr.org/index.php/ToSC/article/view/8571

Internet

https://tosc.iacr.org/index.php/ToSC/article/view/8571

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