FCS Based Montgomery Modular Multiplication

摘要

Security plays an important role in the present generation. It is considered in three matters i.e., confidentiality, integrity & availability. All this will come with an efficient cryptographic algorithm which is achieved by repeating modular multiplications on large integers. To increase the speed by encryption decryption process, high speed Montgomery modular multiplication algorithms, hardware architectures employs carry save addition to avoid the carry propagation at the addition operation of the add-shift loop. We proposed an energy-efficient algorithm and its corresponding architecture are not only to reduce the energy consumption but also further enhance the throughput of Montgomery modular multipliers.This architecture which is capable of bypassing the superfluous carry-save addition and register write operations, which leads to less energy consumption. In addition we modified the barrel register full adder (BRFA) so that the gated clock design is applied significantly to reduce the energy consumption of storage elements in BRFA.