T-SQL MD5算法实现代码,MSSQL代码库,德仔网

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【MSSQL】 T-SQL MD5算法实现
作者:Dezai.CN / 发布于2011/8/11/ 979
<div>/***************************************************************************** 
* Name: T-SQL MD5算法实现 
* Author: Rambo Qian 
* Create Date: 2003-04-10 
* Last Modified by: Rambo Qian 
* Last Update Date: 2003-04-16 
* Version: V1.0.00 
*****************************************************************************/ 
GO 

IF EXISTS(SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[MD5_m_OnBits]') AND xtype IN(N'FN', N'IF', N'TF')) 
DROP FUNCTION [dbo].[MD5_m_OnBits] 
GO 
/***************************************************************************** 
* Name: MD5_m_OnBits 
* Description: 常数组 
*****************************************************************************/ 
CREATE FUNCTION dbo.MD5_m_OnBits( 
@i TINYINT 
) 
RETURNS INT 
WITH ENCRYPTION 
AS 
BEGIN 
DECLARE @iRes INT 
SELECT @iRes = 
CASE @i 
WHEN 0 THEN 1 -- 00000000000000000000000000000001 
WHEN 1 THEN 3 -- 00000000000000000000000000000011 
WHEN 2 THEN 7 -- 00000000000000000000000000000111 
WHEN 3 THEN 15 -- 00000000000000000000000000001111 
WHEN 4 THEN 31 -- 00000000000000000000000000011111 
WHEN 5 THEN 63 -- 00000000000000000000000000111111 
WHEN 6 THEN 127 -- 00000000000000000000000001111111 
WHEN 7 THEN 255 -- 00000000000000000000000011111111 
WHEN 8 THEN 511 -- 00000000000000000000000111111111 
WHEN 9 THEN 1023 -- 00000000000000000000001111111111 
WHEN 10 THEN 2047 -- 00000000000000000000011111111111 
WHEN 11 THEN 4095 -- 00000000000000000000111111111111 
WHEN 12 THEN 8191 -- 00000000000000000001111111111111 
WHEN 13 THEN 16383 -- 00000000000000000011111111111111 
WHEN 14 THEN 32767 -- 00000000000000000111111111111111 
WHEN 15 THEN 65535 -- 00000000000000001111111111111111 
WHEN 16 THEN 131071 -- 00000000000000011111111111111111 
WHEN 17 THEN 262143 -- 00000000000000111111111111111111 
WHEN 18 THEN 524287 -- 00000000000001111111111111111111 
WHEN 19 THEN 1048575 -- 00000000000011111111111111111111 
WHEN 20 THEN 2097151 -- 00000000000111111111111111111111 
WHEN 21 THEN 4194303 -- 00000000001111111111111111111111 
WHEN 22 THEN 8388607 -- 00000000011111111111111111111111 
WHEN 23 THEN 16777215 -- 00000000111111111111111111111111 
WHEN 24 THEN 33554431 -- 00000001111111111111111111111111 
WHEN 25 THEN 67108863 -- 00000011111111111111111111111111 
WHEN 26 THEN 134217727 -- 00000111111111111111111111111111 
WHEN 27 THEN 268435455 -- 00001111111111111111111111111111 
WHEN 28 THEN 536870911 -- 00011111111111111111111111111111 
WHEN 29 THEN 1073741823 -- 00111111111111111111111111111111 
WHEN 30 THEN 2147483647 -- 01111111111111111111111111111111 
ELSE 0 
END 
RETURN(@iRes) 
END 
GO 

IF EXISTS(SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[MD5_m_2Power]') AND xtype IN(N'FN', N'IF', N'TF')) 
DROP FUNCTION [dbo].[MD5_m_2Power] 
GO 
/***************************************************************************** 
* Name: MD5_m_2Power 
* Description: 常数组 
*****************************************************************************/ 
CREATE FUNCTION dbo.MD5_m_2Power( 
@i TINYINT 
) 
RETURNS INT 
WITH ENCRYPTION 
AS 
BEGIN 
DECLARE @iRes INT 
SELECT @iRes = 
CASE @i 
WHEN 0 THEN 1 -- 00000000000000000000000000000001 
WHEN 1 THEN 2 -- 00000000000000000000000000000010 
WHEN 2 THEN 4 -- 00000000000000000000000000000100 
WHEN 3 THEN 8 -- 00000000000000000000000000001000 
WHEN 4 THEN 16 -- 00000000000000000000000000010000 
WHEN 5 THEN 32 -- 00000000000000000000000000100000 
WHEN 6 THEN 64 -- 00000000000000000000000001000000 
WHEN 7 THEN 128 -- 00000000000000000000000010000000 
WHEN 8 THEN 256 -- 00000000000000000000000100000000 
WHEN 9 THEN 512 -- 00000000000000000000001000000000 
WHEN 10 THEN 1024 -- 00000000000000000000010000000000 
WHEN 11 THEN 2048 -- 00000000000000000000100000000000 
WHEN 12 THEN 4096 -- 00000000000000000001000000000000 
WHEN 13 THEN 8192 -- 00000000000000000010000000000000 
WHEN 14 THEN 16384 -- 00000000000000000100000000000000 
WHEN 15 THEN 32768 -- 00000000000000001000000000000000 
WHEN 16 THEN 65536 -- 00000000000000010000000000000000 
WHEN 17 THEN 131072 -- 00000000000000100000000000000000 
WHEN 18 THEN 262144 -- 00000000000001000000000000000000 
WHEN 19 THEN 524288 -- 00000000000010000000000000000000 
WHEN 20 THEN 1048576 -- 00000000000100000000000000000000 
WHEN 21 THEN 2097152 -- 00000000001000000000000000000000 
WHEN 22 THEN 4194304 -- 00000000010000000000000000000000 
WHEN 23 THEN 8388608 -- 00000000100000000000000000000000 
WHEN 24 THEN 16777216 -- 00000001000000000000000000000000 
WHEN 25 THEN 33554432 -- 00000010000000000000000000000000 
WHEN 26 THEN 67108864 -- 00000100000000000000000000000000 
WHEN 27 THEN 134217728 -- 00001000000000000000000000000000 
WHEN 28 THEN 268435456 -- 00010000000000000000000000000000 
WHEN 29 THEN 536870912 -- 00100000000000000000000000000000 
WHEN 30 THEN 1073741824 -- 01000000000000000000000000000000 
ELSE 0 
END 
RETURN(@iRes) 
END 
GO 

IF EXISTS(SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[MD5_LShift]') AND xtype IN(N'FN', N'IF', N'TF')) 
DROP FUNCTION [dbo].[MD5_LShift] 
GO 
/***************************************************************************** 
* Name: MD5_LShift 
* Description: MD5_LShift 
*****************************************************************************/ 
CREATE FUNCTION dbo.MD5_LShift( 
@iValue INT 
,@iShiftBits TINYINT 
) 
RETURNS INT 
WITH ENCRYPTION 
AS 
BEGIN 
DECLARE @iRes BIGINT 
SET @iRes = CAST(@iValue AS BINARY(8)) 
SET @iRes = @iRes * dbo.MD5_m_2Power(@iShiftBits) 
RETURN(CAST(@iRes & 0x00000000FFFFFFFF AS BINARY(4))) 
END 
GO 

IF EXISTS(SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[MD5_RShift]') AND xtype IN(N'FN', N'IF', N'TF')) 
DROP FUNCTION [dbo].[MD5_RShift] 
GO 
/***************************************************************************** 
* Name: MD5_RShift 
* Description: MD5_RShift 
*****************************************************************************/ 
CREATE FUNCTION dbo.MD5_RShift( 
@iValue INT 
,@iShiftBits TINYINT 
) 
RETURNS INT 
WITH ENCRYPTION 
AS 
BEGIN 
DECLARE @iRes BIGINT 
SET @iRes = CAST(@iValue AS BINARY(8)) 
SET @iRes = @iRes / dbo.MD5_m_2Power(@iShiftBits) 
RETURN(CAST(@iRes & 0x00000000FFFFFFFF AS BINARY(4))) 
END 
GO 

IF EXISTS(SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[MD5_RotateLeft]') AND xtype IN(N'FN', N'IF', N'TF')) 
DROP FUNCTION [dbo].[MD5_RotateLeft] 
GO 
/***************************************************************************** 
* Name: MD5_RotateLeft 
* Description: MD5_RotateLeft 
*****************************************************************************/ 
CREATE FUNCTION dbo.MD5_RotateLeft( 
@iValue INT 
,@iShiftBits TINYINT 
) 
RETURNS INT 
WITH ENCRYPTION 
AS 
BEGIN 
RETURN(dbo.MD5_LShift(@iValue, @iShiftBits) | dbo.MD5_RShift(@iValue, (32 - @iShiftBits))) 
END 
GO 

IF EXISTS(SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[MD5_AddUnsigned]') AND xtype IN(N'FN', N'IF', N'TF')) 
DROP FUNCTION [dbo].[MD5_AddUnsigned] 
GO 
/***************************************************************************** 
* Name: MD5_AddUnsigned 
* Description: MD5_AddUnsigned 
*****************************************************************************/ 
CREATE FUNCTION dbo.MD5_AddUnsigned( 
@iX INT 
,@iY INT 
) 
RETURNS INT 
WITH ENCRYPTION 
AS 
BEGIN 
DECLARE @iRes BIGINT 
SET @iRes = CAST(CAST(@iX AS BINARY(8)) AS BIGINT) + CAST(CAST(@iY AS BINARY(8)) AS BIGINT) 
RETURN(CAST(@iRes & 0x00000000FFFFFFFF AS BINARY(4))) 
END 
GO 

IF EXISTS(SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[MD5_F]') AND xtype IN(N'FN', N'IF', N'TF')) 
DROP FUNCTION [dbo].[MD5_F] 
GO 
/***************************************************************************** 
* Name: MD5_F 
* Description: MD5_F 
*****************************************************************************/ 
CREATE FUNCTION dbo.MD5_F( 
@x INT 
,@y INT 
,@z INT 
) 
RETURNS INT 
WITH ENCRYPTION 
AS 
BEGIN 
RETURN((@x & @y) | ((<a href="mailto:~@x"><font color="#336699">~@x</font></a>) & @z)) 
END 
GO 

IF EXISTS(SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[MD5_G]') AND xtype IN(N'FN', N'IF', N'TF')) 
DROP FUNCTION [dbo].[MD5_G] 
GO 
/***************************************************************************** 
* Name: MD5_G 
* Description: MD5_G 
*****************************************************************************/ 
CREATE FUNCTION dbo.MD5_G( 
@x INT 
,@y INT 
,@z INT 
) 
RETURNS INT 
WITH ENCRYPTION 
AS 
BEGIN 
RETURN((@x & @z) | (@y & (<a href="mailto:~@z"><font color="#336699">~@z</font></a>))) 
END 
GO 

IF EXISTS(SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[MD5_H]') AND xtype IN(N'FN', N'IF', N'TF')) 
DROP FUNCTION [dbo].[MD5_H] 
GO 
/***************************************************************************** 
* Name: MD5_H 
* Description: MD5_H 
*****************************************************************************/ 
CREATE FUNCTION dbo.MD5_H( 
@x INT 
,@y INT 
,@z INT 
) 
RETURNS INT 
WITH ENCRYPTION 
AS 
BEGIN 
RETURN(@x ^ @y ^ @z) 
END 
GO 

IF EXISTS(SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[MD5_I]') AND xtype IN(N'FN', N'IF', N'TF')) 
DROP FUNCTION [dbo].[MD5_I] 
GO 
/***************************************************************************** 
* Name: MD5_I 
* Description: MD5_I 
*****************************************************************************/ 
CREATE FUNCTION dbo.MD5_I( 
@x INT 
,@y INT 
,@z INT 
) 
RETURNS INT 
WITH ENCRYPTION 
AS 
BEGIN 
RETURN(@y ^ (@x | (<a href="mailto:~@z"><font color="#336699">~@z</font></a>))) 
END 
GO 

IF EXISTS(SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[MD5_FF]') AND xtype IN(N'FN', N'IF', N'TF')) 
DROP FUNCTION [dbo].[MD5_FF] 
GO 
/***************************************************************************** 
* Name: MD5_FF 
* Description: MD5_FF 
*****************************************************************************/ 
CREATE FUNCTION dbo.MD5_FF( 
@a INT 
,@b INT 
,@c INT 
,@d INT 
,@x INT 
,@s INT 
,@ac INT 
) 
RETURNS INT 
WITH ENCRYPTION 
AS 
BEGIN 
SET @a = dbo.MD5_AddUnsigned(@a, dbo.MD5_AddUnsigned(dbo.MD5_AddUnsigned(dbo.MD5_F(@b, @c, @d), @x), @ac)) 
SET @a = dbo.MD5_RotateLeft(@a, @s) 
SET @a = dbo.MD5_AddUnsigned(@a, @b) 
RETURN(@a) 
END 
GO 

IF EXISTS(SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[MD5_GG]') AND xtype IN(N'FN', N'IF', N'TF')) 
DROP FUNCTION [dbo].[MD5_GG] 
GO 
/***************************************************************************** 
* Name: MD5_GG 
* Description: MD5_GG 
*****************************************************************************/ 
CREATE FUNCTION dbo.MD5_GG( 
@a INT 
,@b INT 
,@c INT 
,@d INT 
,@x INT 
,@s INT 
,@ac INT 
) 
RETURNS INT 
WITH ENCRYPTION 
AS 
BEGIN 
SET @a = dbo.MD5_AddUnsigned(@a, dbo.MD5_AddUnsigned(dbo.MD5_AddUnsigned(dbo.MD5_G(@b, @c, @d), @x), @ac)) 
SET @a = dbo.MD5_RotateLeft(@a, @s) 
SET @a = dbo.MD5_AddUnsigned(@a, @b) 
RETURN(@a) 
END 
GO 

IF EXISTS(SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[MD5_HH]') AND xtype IN(N'FN', N'IF', N'TF')) 
DROP FUNCTION [dbo].[MD5_HH] 
GO 
/***************************************************************************** 
* Name: MD5_HH 
* Description: MD5_HH 
*****************************************************************************/ 
CREATE FUNCTION dbo.MD5_HH( 
@a INT 
,@b INT 
,@c INT 
,@d INT 
,@x INT 
,@s INT 
,@ac INT 
) 
RETURNS INT 
WITH ENCRYPTION 
AS 
BEGIN 
SET @a = dbo.MD5_AddUnsigned(@a, dbo.MD5_AddUnsigned(dbo.MD5_AddUnsigned(dbo.MD5_H(@b, @c, @d), @x), @ac)) 
SET @a = dbo.MD5_RotateLeft(@a, @s) 
SET @a = dbo.MD5_AddUnsigned(@a, @b) 
RETURN(@a) 
END 
GO 

IF EXISTS(SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[MD5_II]') AND xtype IN(N'FN', N'IF', N'TF')) 
DROP FUNCTION [dbo].[MD5_II] 
GO 
/***************************************************************************** 
* Name: MD5_II 
* Description: MD5_II 
*****************************************************************************/ 
CREATE FUNCTION dbo.MD5_II( 
@a INT 
,@b INT 
,@c INT 
,@d INT 
,@x INT 
,@s INT 
,@ac INT 
) 
RETURNS INT 
WITH ENCRYPTION 
AS 
BEGIN 
SET @a = dbo.MD5_AddUnsigned(@a, dbo.MD5_AddUnsigned(dbo.MD5_AddUnsigned(dbo.MD5_I(@b, @c, @d), @x), @ac)) 
SET @a = dbo.MD5_RotateLeft(@a, @s) 
SET @a = dbo.MD5_AddUnsigned(@a, @b) 
RETURN(@a) 
END 
GO
IF EXISTS(SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[MD5_ConvertToWordArray]') AND xtype IN(N'FN', N'IF', N'TF')) 
DROP FUNCTION [dbo].[MD5_ConvertToWordArray] 
GO 
/***************************************************************************** 
* Name: MD5_ConvertToWordArray 
* Description: MD5_ConvertToWordArray 
*****************************************************************************/ 
CREATE FUNCTION dbo.MD5_ConvertToWordArray( 
@sOrigMess VARCHAR(8000) = '' 
) 
RETURNS @tWordArray TABLE([ID] INT IDENTITY(0,1),[Word] INT) 
WITH ENCRYPTION 
AS 
BEGIN 
IF @sOrigMess IS NULL 
SET @sOrigMess = '' 

DECLARE @iLenOfMess INT 
DECLARE @iWordArrayLen INT 
DECLARE @iPosOfWord INT 
DECLARE @iPosOfMess INT 
DECLARE @iCountOfWord INT 

SET @iLenOfMess = LEN(@sOrigMess) 
SET @iWordArrayLen = ((@iLenOfMess + 8)/64 + 1) * 16 
SET @iCountOfWord = 0 
WHILE(@iCountOfWord<@iWordArrayLen) 
BEGIN 
INSERT INTO @tWordArray([Word]) VALUES(0) 
SET @iCountOfWord = @iCountOfWord + 1 
END 

SELECT @iPosOfMess = 0, @iPosOfWord = 0, @iCountOfWord = 0 
WHILE(@iPosOfMess < @iLenOfMess) 
BEGIN 
SELECT @iCountOfWord = @iPosOfMess / 4, @iPosOfWord = @iPosOfMess % 4 
UPDATE @tWordArray 
SET [Word] = [Word] | dbo.MD5_LShift(UNICODE(SUBSTRING(@sOrigMess,@iPosOfMess+1,1)),@iPosOfWord*8) 
WHERE [ID] = @iCountOfWord 
SET @iPosOfMess = @iPosOfMess + 1 
END 

SELECT @iCountOfWord = @iPosOfMess / 4, @iPosOfWord = @iPosOfMess % 4 
UPDATE @tWordArray 
SET [Word] = [Word] | dbo.MD5_LShift(0x80,@iPosOfWord*8) 
WHERE [ID] = @iCountOfWord 

UPDATE @tWordArray 
SET [Word] = [Word] | dbo.MD5_LShift(@iLenOfMess,3) 
WHERE [ID] = @iWordArrayLen - 2 
UPDATE @tWordArray 
SET [Word] = [Word] | dbo.MD5_RShift(@iLenOfMess,29) 
WHERE [ID] = @iWordArrayLen - 1 
RETURN 
END 
GO 

IF EXISTS(SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[MD5_WordToHex]') AND xtype IN(N'FN', N'IF', N'TF')) 
DROP FUNCTION [dbo].[MD5_WordToHex] 
GO 
/***************************************************************************** 
* Name: MD5_WordToHex 
* Description: MD5_WordToHex 
*****************************************************************************/ 
CREATE FUNCTION dbo.MD5_WordToHex( 
@iValue INT 
) 
RETURNS CHAR(8) 
WITH ENCRYPTION 
AS 
BEGIN 
DECLARE @sRes VARCHAR(8) 
DECLARE @iTmp INT 
DECLARE @iCount TINYINT 

SELECT @sRes = '', @iCount = 0 
WHILE(@iCount<4) 
BEGIN 
SET @iTmp = dbo.MD5_RShift(@iValue,@iCount*8) & 0x000000FF 
SET @sRes = @sRes + CASE @iTmp / 16 WHEN 0 THEN '0' 
WHEN 1 THEN '1' 
WHEN 2 THEN '2' 
WHEN 3 THEN '3' 
WHEN 4 THEN '4' 
WHEN 5 THEN '5' 
WHEN 6 THEN '6' 
WHEN 7 THEN '7' 
WHEN 8 THEN '8' 
WHEN 9 THEN '9' 
WHEN 10 THEN 'A' 
WHEN 11 THEN 'B' 
WHEN 12 THEN 'C' 
WHEN 13 THEN 'D' 
WHEN 14 THEN 'E' 
WHEN 15 THEN 'F' 
ELSE '' END 
+ CASE @iTmp % 16 WHEN 0 THEN '0' 
WHEN 1 THEN '1' 
WHEN 2 THEN '2' 
WHEN 3 THEN '3' 
WHEN 4 THEN '4' 
WHEN 5 THEN '5' 
WHEN 6 THEN '6' 
WHEN 7 THEN '7' 
WHEN 8 THEN '8' 
WHEN 9 THEN '9' 
WHEN 10 THEN 'A' 
WHEN 11 THEN 'B' 
WHEN 12 THEN 'C' 
WHEN 13 THEN 'D' 
WHEN 14 THEN 'E' 
WHEN 15 THEN 'F' 
ELSE '' END 
SET @iCount = @iCount + 1 
END 
RETURN(@sRes) 
END 
GO 

IF EXISTS(SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[MD5]') AND xtype IN(N'FN', N'IF', N'TF')) 
DROP FUNCTION [dbo].[MD5] 
GO 
/***************************************************************************** 
* Name: MD5 
* Description: MD5 
*****************************************************************************/ 
CREATE FUNCTION dbo.MD5( 
@sOrigMess NVARCHAR(4000) 
) 
RETURNS CHAR(32) 
WITH ENCRYPTION 
AS 
BEGIN 
--==================================== 
DECLARE @S11 TINYINT 
DECLARE @S12 TINYINT 
DECLARE @S13 TINYINT 
DECLARE @S14 TINYINT 
DECLARE @S21 TINYINT 
DECLARE @S22 TINYINT 
DECLARE @S23 TINYINT 
DECLARE @S24 TINYINT 
DECLARE @S31 TINYINT 
DECLARE @S32 TINYINT 
DECLARE @S33 TINYINT 
DECLARE @S34 TINYINT 
DECLARE @S41 TINYINT 
DECLARE @S42 TINYINT 
DECLARE @S43 TINYINT 
DECLARE @S44 TINYINT 

SELECT @S11 = 7, @S12 = 12, @S13 = 17, @S14 = 22 
SELECT @S21 = 5, @S22 = 9, @S23 = 14, @S24 = 20 
SELECT @S31 = 4, @S32 = 11, @S33 = 16, @S34 = 23 
SELECT @S41 = 6, @S42 = 10, @S43 = 15, @S44 = 21 
--==================================== 
DECLARE @a INT 
DECLARE @b INT 
DECLARE @c INT 
DECLARE @d INT 
DECLARE @AA INT 
DECLARE @BB INT 
DECLARE @CC INT 
DECLARE @DD INT 

SELECT @a = 0x67452301 
,@b = 0xEFCDAB89 
,@c = 0x98BADCFE 
,@d = 0x10325476 
--==================================== 
DECLARE @sRes VARCHAR(32) 
SET @sRes = '' 
DECLARE @iWordArrayLen INT 
DECLARE @iWordArrayCount INT 

DECLARE @tTmp TABLE([ID] INT, [Word] INT) 
INSERT INTO @tTmp SELECT * FROM dbo.MD5_ConvertToWordArray(@sOrigMess) 
SELECT @iWordArrayCount=0, @iWordArrayLen = COUNT(*) FROM @tTmp 

WHILE(@iWordArrayCount < @iWordArrayLen) 
BEGIN 
SELECT @AA = @a, @BB = @b, @CC = @c, @DD = @d 

SELECT @a = dbo.MD5_FF(@a, @b, @c, @d, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 0), @S11, 0xD76AA478) 
SELECT @d = dbo.MD5_FF(@d, @a, @b, @c, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 1), @S12, 0xE8C7B756) 
SELECT @c = dbo.MD5_FF(@c, @d, @a, @b, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 2), @S13, 0x242070DB) 
SELECT @b = dbo.MD5_FF(@b, @c, @d, @a, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 3), @S14, 0xC1BDCEEE) 
SELECT @a = dbo.MD5_FF(@a, @b, @c, @d, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 4), @S11, 0xF57C0FAF) 
SELECT @d = dbo.MD5_FF(@d, @a, @b, @c, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 5), @S12, 0x4787C62A) 
SELECT @c = dbo.MD5_FF(@c, @d, @a, @b, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 6), @S13, 0xA8304613) 
SELECT @b = dbo.MD5_FF(@b, @c, @d, @a, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 7), @S14, 0xFD469501) 
SELECT @a = dbo.MD5_FF(@a, @b, @c, @d, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 8), @S11, 0x698098D8) 
SELECT @d = dbo.MD5_FF(@d, @a, @b, @c, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 9), @S12, 0x8B44F7AF) 
SELECT @c = dbo.MD5_FF(@c, @d, @a, @b, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 10), @S13, 0xFFFF5BB1) 
SELECT @b = dbo.MD5_FF(@b, @c, @d, @a, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 11), @S14, 0x895CD7BE) 
SELECT @a = dbo.MD5_FF(@a, @b, @c, @d, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 12), @S11, 0x6B901122) 
SELECT @d = dbo.MD5_FF(@d, @a, @b, @c, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 13), @S12, 0xFD987193) 
SELECT @c = dbo.MD5_FF(@c, @d, @a, @b, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 14), @S13, 0xA679438E) 
SELECT @b = dbo.MD5_FF(@b, @c, @d, @a, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 15), @S14, 0x49B40821) 

SELECT @a = dbo.MD5_GG(@a, @b, @c, @d, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 1), @S21, 0xF61E2562) 
SELECT @d = dbo.MD5_GG(@d, @a, @b, @c, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 6), @S22, 0xC040B340) 
SELECT @c = dbo.MD5_GG(@c, @d, @a, @b, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 11), @S23, 0x265E5A51) 
SELECT @b = dbo.MD5_GG(@b, @c, @d, @a, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 0), @S24, 0xE9B6C7AA) 
SELECT @a = dbo.MD5_GG(@a, @b, @c, @d, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 5), @S21, 0xD62F105D) 
SELECT @d = dbo.MD5_GG(@d, @a, @b, @c, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 10), @S22, 0x2441453) 
SELECT @c = dbo.MD5_GG(@c, @d, @a, @b, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 15), @S23, 0xD8A1E681) 
SELECT @b = dbo.MD5_GG(@b, @c, @d, @a, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 4), @S24, 0xE7D3FBC8) 
SELECT @a = dbo.MD5_GG(@a, @b, @c, @d, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 9), @S21, 0x21E1CDE6) 
SELECT @d = dbo.MD5_GG(@d, @a, @b, @c, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 14), @S22, 0xC33707D6) 
SELECT @c = dbo.MD5_GG(@c, @d, @a, @b, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 3), @S23, 0xF4D50D87) 
SELECT @b = dbo.MD5_GG(@b, @c, @d, @a, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 8), @S24, 0x455A14ED) 
SELECT @a = dbo.MD5_GG(@a, @b, @c, @d, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 13), @S21, 0xA9E3E905) 
SELECT @d = dbo.MD5_GG(@d, @a, @b, @c, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 2), @S22, 0xFCEFA3F8) 
SELECT @c = dbo.MD5_GG(@c, @d, @a, @b, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 7), @S23, 0x676F02D9) 
SELECT @b = dbo.MD5_GG(@b, @c, @d, @a, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 12), @S24, 0x8D2A4C8A) 

SELECT @a = dbo.MD5_HH(@a, @b, @c, @d, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 5), @S31, 0xFFFA3942) 
SELECT @d = dbo.MD5_HH(@d, @a, @b, @c, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 8), @S32, 0x8771F681) 
SELECT @c = dbo.MD5_HH(@c, @d, @a, @b, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 11), @S33, 0x6D9D6122) 
SELECT @b = dbo.MD5_HH(@b, @c, @d, @a, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 14), @S34, 0xFDE5380C) 
SELECT @a = dbo.MD5_HH(@a, @b, @c, @d, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 1), @S31, 0xA4BEEA44) 
SELECT @d = dbo.MD5_HH(@d, @a, @b, @c, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 4), @S32, 0x4BDECFA9) 
SELECT @c = dbo.MD5_HH(@c, @d, @a, @b, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 7), @S33, 0xF6BB4B60) 
SELECT @b = dbo.MD5_HH(@b, @c, @d, @a, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 10), @S34, 0xBEBFBC70) 
SELECT @a = dbo.MD5_HH(@a, @b, @c, @d, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 13), @S31, 0x289B7EC6) 
SELECT @d = dbo.MD5_HH(@d, @a, @b, @c, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 0), @S32, 0xEAA127FA) 
SELECT @c = dbo.MD5_HH(@c, @d, @a, @b, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 3), @S33, 0xD4EF3085) 
SELECT @b = dbo.MD5_HH(@b, @c, @d, @a, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 6), @S34, 0x4881D05) 
SELECT @a = dbo.MD5_HH(@a, @b, @c, @d, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 9), @S31, 0xD9D4D039) 
SELECT @d = dbo.MD5_HH(@d, @a, @b, @c, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 12), @S32, 0xE6DB99E5) 
SELECT @c = dbo.MD5_HH(@c, @d, @a, @b, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 15), @S33, 0x1FA27CF8) 
SELECT @b = dbo.MD5_HH(@b, @c, @d, @a, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 2), @S34, 0xC4AC5665) 

SELECT @a = dbo.MD5_II(@a, @b, @c, @d, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 0), @S41, 0xF4292244) 
SELECT @d = dbo.MD5_II(@d, @a, @b, @c, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 7), @S42, 0x432AFF97) 
SELECT @c = dbo.MD5_II(@c, @d, @a, @b, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 14), @S43, 0xAB9423A7) 
SELECT @b = dbo.MD5_II(@b, @c, @d, @a, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 5), @S44, 0xFC93A039) 
SELECT @a = dbo.MD5_II(@a, @b, @c, @d, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 12), @S41, 0x655B59C3) 
SELECT @d = dbo.MD5_II(@d, @a, @b, @c, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 3), @S42, 0x8F0CCC92) 
SELECT @c = dbo.MD5_II(@c, @d, @a, @b, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 10), @S43, 0xFFEFF47D) 
SELECT @b = dbo.MD5_II(@b, @c, @d, @a, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 1), @S44, 0x85845DD1) 
SELECT @a = dbo.MD5_II(@a, @b, @c, @d, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 8), @S41, 0x6FA87E4F) 
SELECT @d = dbo.MD5_II(@d, @a, @b, @c, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 15), @S42, 0xFE2CE6E0) 
SELECT @c = dbo.MD5_II(@c, @d, @a, @b, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 6), @S43, 0xA3014314) 
SELECT @b = dbo.MD5_II(@b, @c, @d, @a, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 13), @S44, 0x4E0811A1) 
SELECT @a = dbo.MD5_II(@a, @b, @c, @d, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 4), @S41, 0xF7537E82) 
SELECT @d = dbo.MD5_II(@d, @a, @b, @c, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 11), @S42, 0xBD3AF235) 
SELECT @c = dbo.MD5_II(@c, @d, @a, @b, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 2), @S43, 0x2AD7D2BB) 
SELECT @b = dbo.MD5_II(@b, @c, @d, @a, (SELECT [Word] FROM @tTmp WHERE [ID] = @iWordArrayCount + 9), @S44, 0xEB86D391) 

SET @a = dbo.MD5_AddUnsigned(@a, @AA) 
SET @b = dbo.MD5_AddUnsigned(@b, @BB) 
SET @c = dbo.MD5_AddUnsigned(@c, @CC) 
SET @d = dbo.MD5_AddUnsigned(@d, @DD) 

SET @iWordArrayCount = @iWordArrayCount + 16 
END 

SET @sRes = dbo.MD5_WordToHex(@a) + dbo.MD5_WordToHex(@b) + dbo.MD5_WordToHex(@c) + dbo.MD5_WordToHex(@d) 
SET @sRes = LOWER(@sRes) 
RETURN(@sRes) 
END 
GO 

--Test 
set nocount on 
select dbo.MD5('') as 'MD5('''')' 
union 
select 'd41d8cd98f00b204e9800998ecf8427e' 

select dbo.MD5('a') as 'MD5(''a'')' 
union 
select '0cc175b9c0f1b6a831c399e269772661' 

select dbo.MD5('abc') as 'MD5(''abc'')' 
union 
select '900150983cd24fb0d6963f7d28e17f72' 

select dbo.MD5('message digest') as 'MD5(''message digest'')' 
union 
select 'f96b697d7cb7938d525a2f31aaf161d0' 

select dbo.MD5('abcdefghijklmnopqrstuvwxyz') as 'MD5(''abcdefghijklmnopqrstuvwxyz'')' 
union 
select 'c3fcd3d76192e4007dfb496cca67e13b' 

select dbo.MD5('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789') as 'MD5(''ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'')' 
union 
select 'd174ab98d277d9f5a5611c2c9f419d9f' 

select dbo.MD5('12345678901234567890123456789012345678901234567890123456789012345678901234567890') as 'MD5(''12345678901234567890123456789012345678901234567890123456789012345678901234567890'')' 
union 
select '57edf4a22be3c955ac49da2e2107b67a' 

select dbo.MD5('我') as 'MD5(''我'')' 
union 
select 'a31d0f25367ebe046897f8a939ca4a9f'
</div>
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