Hermes8

In cryptography, Hermes8 is the name of a stream cypher algorithm designed by Ulrich Kaiser. It has been submitted to the eSTREAM Project of the eCRYPT network. It has been classified as an 'archive' algorithm and will not be further considered.

Security

In the paper "An Analysis of the Hermes8 Stream Ciphers" the authors claim, 'an attack on the latest version of the cipher (Hermes8F), which requires very few known keystream bytes and recovers the cipher's secret key in less than a second on a normal PC'.

References

"An Analysis of the Hermes8 Stream Ciphers" paper by Steve Babbage et al.

Stream ciphers

Widely used ciphers

RC4
Block ciphers in stream mode

eSTREAM Portfolio

Software	HC-256 Rabbit Salsa20 SOSEMANUK

Hardware	Grain MICKEY Trivium

Other ciphers

Theory

Attacks

Cryptography

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