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文章阅读:Re: SQL Server 2005: How to hash a column?
[同主题阅读] [版面: 数据库] [作者:yiyayiyayo] , 2007年06月26日22:46:35
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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:

http://md5.benramsey.com/

It did successfully reverse the hash of 'abc123'.  But not any of my real pa
sswords, :-)

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,
that
: 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
for
:  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.]

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