本程序实现了用RSA加密算法加密、解密图片。本程序仅作为RSA原理理解，所以没有实现大数运算部分，RSA选取n为15~16位，加密图片不要选太大，否则会很慢。-This procedure achieved the RSA encryption algorithm with encryption, decryption picture. This procedure only as a principle of understanding of RSA, there is no part of