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3 articles with this tag.
Grain pairs a linear shift register with a nonlinear one and filters them into a keystream. Learn how Grain v1 and Grain-128 work, why they were designed for tiny hardware, and what attacks have taught designers about them.
16 min read
Rabbit is a fast software stream cipher from Cryptico, and it was one of the winners of the eSTREAM competition. Learn how eight counters, eight state words, and one squaring trick turn a 128-bit key into a stream of keystream blocks.
16 min read
Trivium is one of the smallest strong stream ciphers ever designed. Learn how three shift registers, a few XORs, and three AND gates build a cipher that fits in about 3,500 gates and made it into the eSTREAM hardware portfolio.
12 min read
