The GGH signature scheme is a type of digital signature scheme that is based on the hardness of certain problems in lattice-based cryptography. The scheme is named after its inventors, Shai Halevi, and Vinod Vaikuntanathan, who proposed it in 2008. The GGH signature scheme is particularly notable because it is one of the early examples of a digital signature scheme that can be constructed using lattice-based techniques, which are believed to be secure against quantum attacks.
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