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SOBER-128 is a synchronous stream cipher designed by Hawkes and Rose (2003) and is a member of the SOBER family of ciphers. SOBER-128 was also designed to provide MAC (message authentication code) functionality.

Watanabe and Furuya (2004) showed a weakness in the MAC generation of SOBER-128 which means an attack could forge a message with probability 2⁻⁶.^[1] MAC functionality was deleted by Qualcomm from SOBER-128 reference code.

SOBER-128 takes a key up to 128 bits in length.^[2]

References

^ Watanabe, Dai; Furuya, Soichi. "A MAC forgery attack on SOBER-128" (PDF).
^ Hawkes, Philip; Paddon, Michael; Rose, Gregory. "Primitive Specification for SOBER-128 (Version 2.0)" (PDF). p. 3. Archived from the original (PDF) on 2 April 2012.

External links

SOBER 128 page at Qualcomm Open Source

Stream ciphers

Widely used ciphers

eSTREAM Portfolio

Software	HC-128 Rabbit Salsa20 SOSEMANUK
Hardware	Grain MICKEY Trivium

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SOBER-128

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