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Generate Hash Key in SQL Server 2005 using SHA 512 algorithm

Posted on 2011-03-14
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Last Modified: 2012-05-11
How to generate hash keys for a table data in SQL Server 2005 using SHA 512 algorithm?
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Question by:Muralidharand
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Expert Comment

by:mayank_joshi
ID: 35127261
try:-

Declare @crypt NVARCHAR(100);
set @crypt='test';

EXEC sp_OASetProperty @crypt, 'HashAlgorithm', 'sha256'
 EXEC sp_OAMethod @crypt, 'HashStringENC', @hash OUT, @s

 PRINT 'SHA256:'

 PRINT @hash

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LVL 9

Expert Comment

by:mayank_joshi
ID: 35127281
before running the above sql you will have to "Enable Ole automation" for SQL Server.
Follow these steps:-

start -> programs ->MS sql 2005 -> configuration tools -> surfce area configuration -> Surface area conf for features ->

Ole automation -> select the Enable check box and save
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LVL 9

Expert Comment

by:mayank_joshi
ID: 35127287
OLE Automation can also be enabled through:-

exec sp_configure 'Ole Automation Procedures', 1
go
reconfigure
go

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mayank_joshi earned 500 total points
ID: 35127292
the following link may be helpful for other encryption techniques:-

http://www.example-code.com/sql/crypt_hash_algorithms.asp
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LVL 39

Expert Comment

by:BrandonGalderisi
ID: 35128505
Depending on the length of the string, you can possibly use HASHBYTES.  Hashbytes supports SHA and SHA1.

http://msdn.microsoft.com/en-us/library/ms174415%28v=sql.90%29.aspx
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Author Closing Comment

by:Muralidharand
ID: 35196895
Your post was helpful.
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