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We present a secure variant of modular exponentiation implemented in RSA and CRT-RSA to resist power analysis attacks. For speeding up the computation, modular exponentiation is generally done through “squaring and multiplication” according to the binary bit of the secret exponent. This is popularly known as straight forward method. However, such computation leaves behind distinct traces of power...
This paper presents an overview on the randomization technique. Randomization has been considered as one of the efficient techniques to resist power analysis attack on exponentiation based cryptographic algorithm. RSA is one of the most widely used public key cryptosystem. It uses exponentiation operation for encryption / decryption of data. If the instantaneous power consumed during the exponential...
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