Architectures of flexible symmetric key crypto engines-a survey: from hardware coprocessor to multi-crypto-processor system on chip

摘要

The authors present a survey of dedicated hardware introduced over the past decade for cryptographic operations, with a taxonomy of cryptographic hardware in terms of performance, flexibility, and security. The survey identified four main classes of cryptographic hardware: additions to general-purpose processors, cryptographic processors, cryptographic coprocessors, and cryptographic arrays. The paper provides essential information for anyone interested in the background and history of the field.