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Py (cipher)

Py is a stream cipher submitted to eSTREAM by Eli Biham and Jennifer Seberry. It is one of the fastest eSTREAM candidates at around 2.6 cycles per byte on some platforms. It has a structure a little like RC4, but adds an array of 260 32-bit words which are indexed using a permutation of bytes, and produces 64 bits in each round.

Attacks on the Py-family, Overview & Round functions

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Attacks on the Py-family

Hongjun WuKeystreamsDistinguishing attackPaul Crowley
4 related topics

Overview

Stream cipherESTREAMEli BihamJennifer SeberryRC4
12 related topics

Round functions

Digital signal processorsCircular buffers
2 related topics

Topics to explore

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Overview

Attacks on the Py-family

Round functions

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Map overview Semantic statistics

Py (cipher)

Nodes22
Edges21
Triples0
Avg. degree1.91
Density0.090909
Components1

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Important terminology

py preneel paul sekar attack cipher attacks tpypy ciphers tpy output bart key rcr-32 estream souradyuti words 2007 round rcr-64

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SubjectPredicateObjectConfidenceSrc

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