So to give you an idea of how bad guys go about cracking passwords, they will steal a password file that will have all of the passwords in kind of a scrambled form, called a hash, and so what they'll do is they'll make a guess as to what a password is, run it through a hashing function, and see whether it matches the passwords they have on their stolen password list.
为了让大家更好的了解坏人 是如何破解密码的 他们会偷一个密码文件 这个文件有所有的密码 无序排列，称为散表 然后他们开始猜测 密码会是什么 通过运行哈希函数 来看这个密码 跟密码清单上的密码能否相对应