Modified Montgomery Modular Multiplier for Cryptosystems

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Provided by: International Association of Engineering and Management Education (IAEME)
Topic: Security
Format: PDF
RSA is one of the most widely adopted public key algorithms at present and it requires repeated modular multiplications to accomplish the computation of modular exponentiation. A famous approach to implement modular multiplication in hardware circuits is based on the Montgomery modular multiplication algorithm since it has many advantages. To speed up the encryption/decryption process, many high-speed Montgomery modular multiplication algorithms and hardware architectures employ carry-save addition. But CSA based architecture increases the area. In this paper, in order to reduce the area of the CSA based multiplier, an area-efficient algorithm called double add reduce algorithm is introduced.
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