VMAC
Message authentication code algorithm / From Wikipedia, the free encyclopedia
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VMAC is a block cipher-based message authentication code (MAC) algorithm using a universal hash proposed by Ted Krovetz and Wei Dai in April 2007. The algorithm was designed for high performance backed by a formal analysis. [citation needed]
VMAC is designed to have exceptional performance in software on 64-bit CPU architectures while still performing well on 32-bit architectures. [citation needed] Measured speeds are as fast as one-half CPU cycle per byte (cpb) on 64-bit architectures, under five cpb on desktop 32-bit processors, and around ten cpb on embedded 32-bit architectures.[1] A closely related variant of VMAC that is optimized for 32-bit architectures is given by UMAC.