DLP与DHP DLP Given p, a and b, find x such that b=a- mod p DHP g is the generator of Fp, given g mod p and g modp, find gry moa p DLP→DHP DLP=?DHP 0(0 ash mfy@ustc.edu.cn 现代密码学理论与实践 8/54mfy@ustc.edu.cn 现代密码学理论与实践 8/54  DLP ◦ Given p, a and b, find x such that b=ax mod p.  DHP ◦ g is the generator of Fp , given g x mod p and g y mod p, find g xy mod p.  DLP→DHP,  DLP=?DHP