Σχεδιασμός κρυπτογραφικών συστημάτων δημοσίου κλειδιού
Abstract
In this PhD dissertation the cryptographic schemes of RSA and elliptic curve cryptography were studied extensively in order to propose design methodologies for those schemes that are efficient in terms of computation speed and employed hardware resources. In the proposed methodologies special attention is given in the optimization of finite field arithmetic operations employed in public key cryptography. The most widely used such fields are the prime fields or GF(p) and the binary extension fields or GF(2ᵏ). Concerning GF(p) arithmetic an optimized version of Montgomery modulo multiplication algorithm is proposed for performing modular multiplication that employs Carry Save redundant logic and value precomputation. The resulting architecture is used in a modular exponentiation unit (which is the basic arithmetic operation of RSA. The proposed unit achieves much better results in terms of computation speed and utilized hardware resources when compared to other well known similar designs ...
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