送交者: steven 于 2005-8-14, 20:25:55:
回答: 关于email过滤的实验：简单加密即可绕过 由 Yush 于 2005-8-14, 03:29:31:
and cryptosystem. Looks like you don't know what you are talking about here. MD5 is not collision free, however, MD5 is not used to encrypt data. Breaking MD5 allows you to forge, but it doesn't means you can break a cipher.