加密算法 Test Driver for Crypto++, a C++ Class Library of Cryptographic Primitives: - To generate an RSA key cryptest g - To encrypt and decrypt a string using RSA cryptest r - To calculate MD5, SHS, and RIPEMD-160 message digests:

We begin with choosing two random large distinct primes p and q. We also pick e, a random integer that is relatively prime to (p-1)*(q-1). The random integer e is the encryption exponent. Let n = p*q. Using Euclid s greatest common divisor a