This article shows SQL statements that encrypt an input string by using MD5/SHA/SHA1 algorithm. And you should play with these SQL statements in the Microsoft SQL Server Management Studio (New Query) to see the results.
MD5/SHA/SHA1 Hash
SQL statements below returns the MD5, SHA, SHA1 hash of ‘123456’ string.
SELECT HashBytes('MD5','123456') SELECT HashBytes('SHA','123456') SELECT HashBytes('SHA1','123456') |
SQL statements Encrypt MD5 SHA SHA1
However, those return VarBinary instead of VarChar values:
0xE10ADC3949BA59ABBE56E057F20F883E 0x7C4A8D09CA3762AF61E59520943DC26494F8941B |
Therefore, we need to use the built in function, fn_varbintohexstr from VarBinary to Hex String:
SELECT SUBSTRING(master.dbo.fn_varbintohexstr(HashBytes('MD5', '123456')), 3, 32) AS MD5 SELECT SUBSTRING(master.dbo.fn_varbintohexstr(HashBytes('SHA', '123456')), 3, 40) AS SHA SELECT SUBSTRING(master.dbo.fn_varbintohexstr(HashBytes('SHA1', '123456')), 3, 40) AS SHA1 |
SQL Statement Encrypt MD5 SHA SHA1 From VarBinary To Hex String
Note: in order to verify the MD5 result, you can use the Online Tool MD5 Generator.
