ABC (stream cipher)

Last updated June 13, 2025

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In cryptography, ABC is a stream cypher algorithm developed by Vladimir Anashin, Andrey Bogdanov, Ilya Kizhvatov, and Sandeep Kumar.^[1] It has been submitted to the eSTREAM Project of the eCRYPT network.

It takes a 128-bit key and a 128-bit IV.^[1]

The claimed security level of $2^{128}$ bits has been reduced to $2^{88}$ .^[2]

References

1 2 Anashin, Vladimir; Bogdanov, Andrey; Andrey, Ilya. "ABC: A New Fast Flexible Stream Cipher" (PDF). European Network of Excellence in Cryptology II . Archived from the original (PDF) on 2006-10-11. Retrieved 26 January 2015.
↑ "A new distinguish attack against ABC stream cipher". IEEE Xplore. May 7, 2007. Retrieved June 12, 2025.

Stream ciphers

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eSTREAM Portfolio

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Hardware	Grain MICKEY Trivium

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