[Resource Topic] 2008/473: Exploring Cipherspace: Combining stream ciphers and block ciphers

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Title:
Exploring Cipherspace: Combining stream ciphers and block ciphers

Authors: Sandy Harris

Abstract:

This paper looks at the possibility of combining a block cipher and a stream cipher to get a strong hybrid cipher. It includes two specific proposals for combining AES-128 and RC4-128 to get a cipher that takes a 256-bit key and is significantly faster than AES-256, and arguably more secure. One is immune to algebraic attacks.

ePrint: https://eprint.iacr.org/2008/473

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