Supported by the National Natural Science Foundation of China (Grant No. 10128103)
The classical RSA is vulnerable to low private exponent attacks (LPEA) and has homomorphism. KMOV based on elliptic curve En(a,b) over Zn can resist LPEA but still has homomorphism. QV over En(a,b) not only can ...
Let R be an arbitrary finite commutative local ring. In this paper, we obtain a necessary and sufficient condition for a function over R to be a polynomial function. Before this paper, necessary and sufficient conditi...