RSA加密是随机的。对于给定的公开密钥和给定的消息，每次尝试在加密产生字节的独特序列。这是正常的预期;随机字节被注入作为填充阶段的一部分，而不是注入随机字节将导致弱的加密系统。解密时，填充字节的位置和删除，原始邮件恢复毫发无损。

RSA encryption is randomized. For a given public key and a given message, each attempt at encryption yields a distinct sequence of bytes. This is normal and expected; random bytes are injected as part of the padding phase, and not injecting random bytes would result in a weak encryption system. During decryption, the padding bytes are located and removed, and the original message is recovered unscathed.

因此​​，预计您将获得与Java和C＃不同的加密邮件，而且，如果你运行Java或C＃代码的两倍。

Hence it is expected that you will get distinct encrypted messages with Java and C#, but also if you run your Java or C# code twice.