发信人: yiyayiyayo (I live, so I gamble.), 信区: Database
标 题: Re: SQL Server 2005: How to hash a column?
发信站: BBS 未名空间站 (Tue Jun 26 22:53:00 2007), 转信
Guess what, I googled out one site:
It did successfully reverse the hash of 'abc123'. But not any of my real pa
It looks like the hash reversal engine above has a small dictionary of hashe
d entries. If you just use your name initials plus your birth date as your
password, it won't be able to reverse it.
【 在 tolive (Dream Weaver) 的大作中提到: 】
: You're right, HASH is one-way and non-reversible, but the problem is, HASH
: doesn't use any "key" to
: "encrypt" the data, it only scramble the data using a fixed algorithm,
: being said, for the string
: "password", its HASH result is fixed (and unique), other people can "guess
: your original data, compare the
: HASH result with your HASH result, if the results match, then he "decrypt"
: your data. Google "HASH
: Reverse", you'll find many website provide the dictionary lookup reverse
: HASH code, sure if your
※ 修改:·yiyayiyayo 于 Jun 26 22:53:18 修改本文·[FROM: 69.139.]
※ 来源:·BBS 未名空间站 海外: mitbbs.com 中国: mitbbs.cn·[FROM: 69.139.]