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sagan avatar sagan commented on July 29, 2024

我觉得密钥生成函数计算量太小不是什么大问题,只要密码信息量足够(>=aes 的 128bit)即可,22位随机大小写数字混合密码就达到了。

然而最大的问题是现在实际使用的password是用的 MD5 结果 hex string 的前16位。这个信息量只有 64 bit,直接把加密强度降低到了 aes-64 级别。(password, salt) 生成 (key, iv)。密文拥有者(例如服务器)已经知道 salt,可以直接尝试暴力破解。。

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