RSA算法是第一个能同时用于加密和数字签名的算法，也易于理解和操作。 RSA是被研究得最广泛的公钥算法，从提出到现在已近二十年，经历了各种攻击的考验，逐渐为人们接受，普遍认为是目前最优秀的公钥方案之一。RSA的安全性依赖于大数的因子分解，但并没有从理论上证明破译RSA的难度与大数分解难度等价。该课题要求完成对给定的文件作为输入，通过RSA算法对该数据进行加密，为了便于用户理解，要求提供此模型的可视化图形显示。 -RSA algorithm is the first one that could be used encryption and digital signature algorithm, easy to understand and operate. RSA is the most extensive study of public key algorithm, and from now for almost 20 years, has experienced a variety of attack test gradually accepted, is generally considered the most outstanding public key one. RSA Security depends on the factorization of large numbers. but has not proved the difficulty in deciphering the RSA and factoring difficult equivalent. Required to complete the task given to the paper as an input, through the RSA encryption on the data, In order to facilitate understanding of user requests for this model visualization graphics.