SQL Server

Hash Algorithms: SHA-1, HAVAL, MD2, MD5, SHA-256, SHA-384, SHA-512

See more Encryption Examples

How to create hashes (message digests) for strings. SQL Server

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    -- This example requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @crypt int
    EXEC @hr = sp_OACreate 'Chilkat.Crypt2', @crypt OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @s nvarchar(4000)
    SELECT @s = 'The quick brown fox jumps over the lazy dog'

    EXEC sp_OASetProperty @crypt, 'HashAlgorithm', 'sha1'
    EXEC sp_OASetProperty @crypt, 'EncodingMode', 'hex'

    -- Other possible EncodingMode settings are: 
    -- "quoted-printable", "base64","url", and many more..

    DECLARE @hash nvarchar(4000)
    EXEC sp_OAMethod @crypt, 'HashStringENC', @hash OUT, @s

    PRINT 'SHA1: ' + @hash

    -- Hash using MD2
    EXEC sp_OASetProperty @crypt, 'HashAlgorithm', 'md2'
    EXEC sp_OAMethod @crypt, 'HashStringENC', @hash OUT, @s

    PRINT 'MD2: ' + @hash

    -- Hash using MD5
    EXEC sp_OASetProperty @crypt, 'HashAlgorithm', 'md5'
    EXEC sp_OAMethod @crypt, 'HashStringENC', @hash OUT, @s

    PRINT 'MD5: ' + @hash

    -- Note: SHA-2 is a set of cryptographic hash functions (SHA-224, SHA-256, SHA-384, SHA-512)

    -- Hash using SHA-256
    EXEC sp_OASetProperty @crypt, 'HashAlgorithm', 'sha256'
    EXEC sp_OAMethod @crypt, 'HashStringENC', @hash OUT, @s

    PRINT 'SHA256: ' + @hash

    -- Hash using SHA-384
    EXEC sp_OASetProperty @crypt, 'HashAlgorithm', 'sha384'
    EXEC sp_OAMethod @crypt, 'HashStringENC', @hash OUT, @s

    PRINT 'SHA384: ' + @hash

    -- Hash using SHA-512
    EXEC sp_OASetProperty @crypt, 'HashAlgorithm', 'sha512'
    EXEC sp_OAMethod @crypt, 'HashStringENC', @hash OUT, @s

    PRINT 'SHA512: ' + @hash

    -- Hash using HAVAL
    -- There are two additional properties relevant to HAVAL:
    -- HavalRounds, and KeyLength.
    -- HavalRounds can have values of 3, 4, or 5.
    -- KeyLength can have values of 128, 160, 192, 224, or 256
    EXEC sp_OASetProperty @crypt, 'HashAlgorithm', 'haval'
    EXEC sp_OASetProperty @crypt, 'HavalRounds', 5
    EXEC sp_OASetProperty @crypt, 'KeyLength', 256
    EXEC sp_OAMethod @crypt, 'HashStringENC', @hash OUT, @s

    PRINT 'Haval: ' + @hash

    -- Hashes for "The quick brown fox jumps over the lazy dog"

    -- SHA1:
    -- 2FD4E1C67A2D28FCED849EE1BB76E7391B93EB12

    -- MD2:
    -- 03D85A0D629D2C442E987525319FC471

    -- MD5:
    -- 9E107D9D372BB6826BD81D3542A419D6

    -- SHA256:
    -- D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592

    -- SHA384:
    -- CA737F1014A48F4C0B6DD43CB177B0AFD9E5169367544C494011E3317DBF9A509CB1E5DC1E85A941BBEE3D7F2AFBC9B1

    -- SHA512:
    -- 07E547D9586F6A73F73FBAC0435ED76951218FB7D0C8D788A309D785436BBB642E93A252A954F23912547D1E8A3B5ED6E1BFD7097821233FA0538F3DB854FEE6

    -- Haval:
    -- B89C551CDFE2E06DBD4CEA2BE1BC7D557416C58EBB4D07CBC94E49F710C55BE

    EXEC @hr = sp_OADestroy @crypt


END
GO