A software-optimized encryption algorithm.

Published: Feb 27, 2000
Updated: Feb 27, 2000
Section: Network Security Library :: Cryptography
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We describe a software-efficient encryption algorithm named SEAL 3.0. Computational cost on a modern 32-bit processor is about 4 clock cycles per byte of text. The cipher is a pseudorandom function family: under control of a key (first pre-processed into an internal table) it stretches a 32-bit position index into a long, pseudorandom string. This string can be used as the keystream of a Vernam cipher.

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