(一)理论知识
MD5加密的javascript实现例子
/* MD5 Message-Digest Algorithm - JavaScript
' MODIFICATION HISTORY:
' 1.0 16-Feb-2001 - Phil Fresle (sales@frez.co.uk) - Initial Version (VB/ASP code)
' 1.0 21-Feb-2001 - Enrico Mosanghini (erik504@yahoo.com) - JavaScript porting
*/
function MD5(sMessage) {
function RotateLeft(lValue, iShiftBits) { return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits)); }
function AddUnsigned(lX,lY) {
var lX4,lY4,lX8,lY8,lResult;
lX8 = (lX & 0x80000000);
lY8 = (lY & 0x80000000);
lX4 = (lX & 0x40000000);
lY4 = (lY & 0x40000000);
lResult = (lX & 0x3FFFFFFF)+(lY & 0x3FFFFFFF);
if (lX4 & lY4) return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
if (lX4 | lY4) {
if (lResult & 0x40000000) return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
else return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
} else return (lResult ^ lX8 ^ lY8);
}
function F(x,y,z) { return (x & y) | ((~x) & z); }
function G(x,y,z) { return (x & z) | (y & (~z)); }
function H(x,y,z) { return (x ^ y ^ z); }
function I(x,y,z) { return (y ^ (x | (~z))); }
function FF(a,b,c,d,x,s,ac) {
a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac));
return AddUnsigned(RotateLeft(a, s), b);
}
function GG(a,b,c,d,x,s,ac) {
a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac));
return AddUnsigned(RotateLeft(a, s), b);
}
function HH(a,b,c,d,x,s,ac) {
a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac));
return AddUnsigned(RotateLeft(a, s), b);
}
function II(a,b,c,d,x,s,ac) {
a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac));
return AddUnsigned(RotateLeft(a, s), b);
}
function ConvertToWordArray(sMessage) {
var lWordCount;
var lMessageLength = sMessage.length;
var lNumberOfWords_temp1=lMessageLength + 8;
var lNumberOfWords_temp2=(lNumberOfWords_temp1-(lNumberOfWords_temp1 % 64))/64;
var lNumberOfWords = (lNumberOfWords_temp2+1)*16;
var lWordArray=Array(lNumberOfWords-1);
var lBytePosition = 0;
var lByteCount = 0;
while ( lByteCount < lMessageLength ) {
lWordCount = (lByteCount-(lByteCount % 4))/4;
lBytePosition = (lByteCount % 4)*8;
lWordArray[lWordCount] = (lWordArray[lWordCount] | (sMessage.charCodeAt(lByteCount)<<lBytePosition));
lByteCount++;
}
lWordCount = (lByteCount-(lByteCount % 4))/4;
lBytePosition = (lByteCount % 4)*8;
lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80<<lBytePosition);
lWordArray[lNumberOfWords-2] = lMessageLength<<3;
lWordArray[lNumberOfWords-1] = lMessageLength>>>29;
return lWordArray;
}
function WordToHex(lValue) {
var WordToHexValue="",WordToHexValue_temp="",lByte,lCount;
for (lCount = 0;lCount<=3;lCount++) {
lByte = (lValue>>>(lCount*8)) & 255;
WordToHexValue_temp = "0" + lByte.toString(16);
WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length-2,2);
}
return WordToHexValue;
}
var x=Array();
var k,AA,BB,CC,DD,a,b,c,d
var S11=7, S12=12, S13=17, S14=22;
var S21=5, S22=9 , S23=14, S24=20;
var S31=4, S32=11, S33=16, S34=23;
var S41=6, S42=10, S43=15, S44=21;
// Steps 1 and 2. Append padding bits and length and convert to words
x = ConvertToWordArray(sMessage);
// Step 3. Initialise
a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;
// Step 4. Process the message in 16-word blocks
for (k=0;k<x.length;k+=16) {
AA=a; BB=b; CC=c; DD=d;
a=FF(a,b,c,d,x[k+0], S11,0xD76AA478);
d=FF(d,a,b,c,x[k+1], S12,0xE8C7B756);
c=FF(c,d,a,b,x[k+2], S13,0x242070DB);
b=FF(b,c,d,a,x[k+3], S14,0xC1BDCEEE);
a=FF(a,b,c,d,x[k+4], S11,0xF57C0FAF);
d=FF(d,a,b,c,x[k+5], S12,0x4787C62A);
c=FF(c,d,a,b,x[k+6], S13,0xA8304613);
b=FF(b,c,d,a,x[k+7], S14,0xFD469501);
a=FF(a,b,c,d,x[k+8], S11,0x698098D8);
d=FF(d,a,b,c,x[k+9], S12,0x8B44F7AF);
c=FF(c,d,a,b,x[k+10],S13,0xFFFF5BB1);
b=FF(b,c,d,a,x[k+11],S14,0x895CD7BE);
a=FF(a,b,c,d,x[k+12],S11,0x6B901122);
d=FF(d,a,b,c,x[k+13],S12,0xFD987193);
c=FF(c,d,a,b,x[k+14],S13,0xA679438E);
b=FF(b,c,d,a,x[k+15],S14,0x49B40821);
a=GG(a,b,c,d,x[k+1], S21,0xF61E2562);
d=GG(d,a,b,c,x[k+6], S22,0xC040B340);
c=GG(c,d,a,b,x[k+11],S23,0x265E5A51);
b=GG(b,c,d,a,x[k+0], S24,0xE9B6C7AA);
a=GG(a,b,c,d,x[k+5], S21,0xD62F105D);
d=GG(d,a,b,c,x[k+10],S22,0x2441453);
c=GG(c,d,a,b,x[k+15],S23,0xD8A1E681);
b=GG(b,c,d,a,x[k+4], S24,0xE7D3FBC8);
a=GG(a,b,c,d,x[k+9], S21,0x21E1CDE6);
d=GG(d,a,b,c,x[k+14],S22,0xC33707D6);
c=GG(c,d,a,b,x[k+3], S23,0xF4D50D87);
b=GG(b,c,d,a,x[k+8], S24,0x455A14ED);
a=GG(a,b,c,d,x[k+13],S21,0xA9E3E905);
d=GG(d,a,b,c,x[k+2], S22,0xFCEFA3F8);
c=GG(c,d,a,b,x[k+7], S23,0x676F02D9);
b=GG(b,c,d,a,x[k+12],S24,0x8D2A4C8A);
a=HH(a,b,c,d,x[k+5], S31,0xFFFA3942);
d=HH(d,a,b,c,x[k+8], S32,0x8771F681);
c=HH(c,d,a,b,x[k+11],S33,0x6D9D6122);
b=HH(b,c,d,a,x[k+14],S34,0xFDE5380C);
a=HH(a,b,c,d,x[k+1], S31,0xA4BEEA44);
d=HH(d,a,b,c,x[k+4], S32,0x4BDECFA9);
c=HH(c,d,a,b,x[k+7], S33,0xF6BB4B60);
b=HH(b,c,d,a,x[k+10],S34,0xBEBFBC70);
a=HH(a,b,c,d,x[k+13],S31,0x289B7EC6);
d=HH(d,a,b,c,x[k+0], S32,0xEAA127FA);
c=HH(c,d,a,b,x[k+3], S33,0xD4EF3085);
b=HH(b,c,d,a,x[k+6], S34,0x4881D05);
a=HH(a,b,c,d,x[k+9], S31,0xD9D4D039);
d=HH(d,a,b,c,x[k+12],S32,0xE6DB99E5);
c=HH(c,d,a,b,x[k+15],S33,0x1FA27CF8);
b=HH(b,c,d,a,x[k+2], S34,0xC4AC5665);
a=II(a,b,c,d,x[k+0], S41,0xF4292244);
d=II(d,a,b,c,x[k+7], S42,0x432AFF97);
c=II(c,d,a,b,x[k+14],S43,0xAB9423A7);
b=II(b,c,d,a,x[k+5], S44,0xFC93A039);
a=II(a,b,c,d,x[k+12],S41,0x655B59C3);
d=II(d,a,b,c,x[k+3], S42,0x8F0CCC92);
c=II(c,d,a,b,x[k+10],S43,0xFFEFF47D);
b=II(b,c,d,a,x[k+1], S44,0x85845DD1);
a=II(a,b,c,d,x[k+8], S41,0x6FA87E4F);
d=II(d,a,b,c,x[k+15],S42,0xFE2CE6E0);
c=II(c,d,a,b,x[k+6], S43,0xA3014314);
b=II(b,c,d,a,x[k+13],S44,0x4E0811A1);
a=II(a,b,c,d,x[k+4], S41,0xF7537E82);
d=II(d,a,b,c,x[k+11],S42,0xBD3AF235);
c=II(c,d,a,b,x[k+2], S43,0x2AD7D2BB);
b=II(b,c,d,a,x[k+9], S44,0xEB86D391);
a=AddUnsigned(a,AA); b=AddUnsigned(b,BB); c=AddUnsigned(c,CC); d=AddUnsigned(d,DD);
}
// Step 5. Output the 128 bit digest
var temp= WordToHex(a)+WordToHex(b)+WordToHex(c)+WordToHex(d);
return temp.toLowerCase();
}
MD5算法的T-SQL实现(FOR SQL2000)
/*****************************************************************************
* 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
![](/Images/OutliningIndicators/None.gif)
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
![](/Images/OutliningIndicators/None.gif)
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
![](/Images/OutliningIndicators/None.gif)
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
![](/Images/OutliningIndicators/None.gif)
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
![](/Images/OutliningIndicators/None.gif)
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
![](/Images/OutliningIndicators/None.gif)
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
![](/Images/OutliningIndicators/None.gif)
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) | ((~@x) & @z))
END
GO
![](/Images/OutliningIndicators/None.gif)
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 & (~@z)))
END
GO
![](/Images/OutliningIndicators/None.gif)
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
![](/Images/OutliningIndicators/None.gif)
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 | (~@z)))
END
GO
![](/Images/OutliningIndicators/None.gif)
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
![](/Images/OutliningIndicators/None.gif)
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
![](/Images/OutliningIndicators/None.gif)
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
![](/Images/OutliningIndicators/None.gif)
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 = ''
![](/Images/OutliningIndicators/None.gif)
DECLARE @iLenOfMess INT
DECLARE @iWordArrayLen INT
DECLARE @iPosOfWord INT
DECLARE @iPosOfMess INT
DECLARE @iCountOfWord INT
![](/Images/OutliningIndicators/None.gif)
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
![](/Images/OutliningIndicators/None.gif)
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
![](/Images/OutliningIndicators/None.gif)
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
![](/Images/OutliningIndicators/None.gif)
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
![](/Images/OutliningIndicators/None.gif)
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
![](/Images/OutliningIndicators/None.gif)
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
![](/Images/OutliningIndicators/None.gif)
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
![](/Images/OutliningIndicators/None.gif)
SELECT @a = 0x67452301
,@b = 0xEFCDAB89
,@c = 0x98BADCFE
,@d = 0x10325476
--====================================
DECLARE @sRes VARCHAR(32)
SET @sRes = ''
DECLARE @iWordArrayLen INT
DECLARE @iWordArrayCount INT
![](/Images/OutliningIndicators/None.gif)
DECLARE @tTmp TABLE([ID] INT, [Word] INT)
INSERT INTO @tTmp SELECT * FROM dbo.MD5_ConvertToWordArray(@sOrigMess)
SELECT @iWordArrayCount=0, @iWordArrayLen = COUNT(*) FROM @tTmp
![](/Images/OutliningIndicators/None.gif)
WHILE(@iWordArrayCount < @iWordArrayLen)
BEGIN
SELECT @AA = @a, @BB = @b, @CC = @c, @DD = @d
![](/Images/OutliningIndicators/None.gif)
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)
![](/Images/OutliningIndicators/None.gif)
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)
![](/Images/OutliningIndicators/None.gif)
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)
![](/Images/OutliningIndicators/None.gif)
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)
![](/Images/OutliningIndicators/None.gif)
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)
![](/Images/OutliningIndicators/None.gif)
SET @iWordArrayCount = @iWordArrayCount + 16
END
![](/Images/OutliningIndicators/None.gif)
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
![](/Images/OutliningIndicators/None.gif)
--Test
set nocount on
select dbo.MD5('') as 'MD5('''')'
union
select 'd41d8cd98f00b204e9800998ecf8427e'
![](/Images/OutliningIndicators/None.gif)
select dbo.MD5('a') as 'MD5(''a'')'
union
select '0cc175b9c0f1b6a831c399e269772661'
![](/Images/OutliningIndicators/None.gif)
select dbo.MD5('abc') as 'MD5(''abc'')'
union
select '900150983cd24fb0d6963f7d28e17f72'
![](/Images/OutliningIndicators/None.gif)
select dbo.MD5('message digest') as 'MD5(''message digest'')'
union
select 'f96b697d7cb7938d525a2f31aaf161d0'
![](/Images/OutliningIndicators/None.gif)
select dbo.MD5('abcdefghijklmnopqrstuvwxyz') as 'MD5(''abcdefghijklmnopqrstuvwxyz'')'
union
select 'c3fcd3d76192e4007dfb496cca67e13b'
![](/Images/OutliningIndicators/None.gif)
select dbo.MD5('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789') as 'MD5(''ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'')'
union
select 'd174ab98d277d9f5a5611c2c9f419d9f'
![](/Images/OutliningIndicators/None.gif)
select dbo.MD5('12345678901234567890123456789012345678901234567890123456789012345678901234567890') as 'MD5(''12345678901234567890123456789012345678901234567890123456789012345678901234567890'')'
union
select '57edf4a22be3c955ac49da2e2107b67a'
![](/Images/OutliningIndicators/None.gif)
select dbo.MD5('我') as 'MD5(''我'')'
union
select 'a31d0f25367ebe046897f8a939ca4a9f'
ASP.NET实现方式 ( ASP.NET中密码保护,MD5和SHA1算法的使用 )
<br>file: encrypting.aspx<br>
<%@ Page language="c#" Codebehind="encrypting.cs" AutoEventWireup="false" Inherits="encrypting.encrypting" %><br>
<html><head><br>
<meta name="GENERATOR" Content="Microsoft Visual Studio 7.0"><br>
<meta name="CODE_LANGUAGE" Content="C#"></head><br>
<body><br>
<br>
<form method="post" runat="server"><br>
<p> </p><br>
<p><br>
<asp:TextBox id=TextBox1 runat="server"></asp:TextBox><br>
<asp:Button id=Button1 runat="server" Text="encrypting"></asp:Button></p><br>
<p>Encrypting Password(MD5):<br>
<asp:Label id=MD5 runat="server"></asp:Label></p><br>
</form><br>
<br>
</body></html><br>
<br>
file:encrypting.cs<br>
<br>
namespace encrypting<br>
{<br>
using System;<br>
using System.Collections;<br>
using System.ComponentModel;<br>
using System.Data;<br>
using System.Drawing;<br>
using System.Web;<br>
using System.Web.SessionState;<br>
using System.Web.UI;<br>
using System.Web.UI.WebControls;<br>
using System.Web.UI.HtmlControls;<br>
using System.Web.Security;<br>
/// <summary><br>
/// Summary description for encrypting.<br>
/// </summary><br>
public class encrypting : System.Web.UI.Page<br>
{<br>
protected System.Web.UI.WebControls.Label MD5;<br>
protected System.Web.UI.WebControls.Button Button1;<br>
protected System.Web.UI.WebControls.TextBox TextBox1;<br>
<br>
public encrypting()<br>
{<br>
Page.Init += new System.EventHandler(Page_Init);<br>
}<br>
protected void Page_Load(object sender, EventArgs e)<br>
{<br>
if (!IsPostBack)<br>
{<br>
//<br>
// Evals true first time browser hits the page<br>
//<br>
}<br>
}<br>
protected void Page_Init(object sender, EventArgs e)<br>
{<br>
//<br>
// CODEGEN: This call is required by the ASP+ Windows Form Designer.<br>
//<br>
InitializeComponent();<br>
}<br>
/// <summary><br>
/// Required method for Designer support - do not modify<br>
/// the contents of this method with the code editor.<br>
/// </summary><br>
private void InitializeComponent()<br>
{<br>
Button1.Click += new System.EventHandler (this.Button1_Click);<br>
this.Load += new System.EventHandler (this.Page_Load);<br>
}<br>
public void Button1_Click (object sender, System.EventArgs e)<br>
{<br>
MD5.Text = CookieAuthentication.HashPasswordForStoringInConfigFile(TextBox1.Text,"MD5");<br>
//SHA1 use CookieAuthentication.HashPasswordForStoringInConfigFile(TextBox1.Text,"SHA1");<br>
}<br>
}<br>
}<br>
注意:类CookieAuthentication的namespace是System.Web.Security。
MD5加密算法简介
一、算法实现(转载自绿色兵团)
1、MD5算法是对输入的数据进行补位,使得如果数据位长度LEN对512求余的结果
是448。
即数据扩展至K*512+448位。即K*64+56个字节,K为整数。
具体补位操作:补一个1,然后补0至满足上述要求
2、补数据长度:
用一个64位的数字表示数据的原始长度B,把B用两个32位数表示。这时,数据
就被填
补成长度为512位的倍数。
3. 初始化MD5参数
四个32位整数 (A,B,C,D) 用来计算信息摘要,初始化使用的是十六进制表示
的数字
A=0X01234567
B=0X89abcdef
C=0Xfedcba98
D=0X76543210
4、处理位操作函数
X,Y,Z为32位整数。
F(X,Y,Z) = X&Y|NOT(X)&Z
G(X,Y,Z) = X&Z|Y¬(Z)
H(X,Y,Z) = X xor Y xor Z
I(X,Y,Z) = Y xor (X|not(Z))
5、主要变换过程:
使用常数组T[1 ... 64], T为32位整数用16进制表示,数据用16个32位的
整
数数组M[]表示。
具体过程如下:
/* 处理数据原文 */
For i = 0 to N/16-1 do
/*每一次,把数据原文存放在16个元素的数组X中. */
For j = 0 to 15 do
Set X[j] to M[i*16+j].
end /结束对J的循环
/* Save A as AA, B as BB, C as CC, and D as DD. */
AA = A
BB = B
CC = C
DD = D
/* 第1轮*/
/* 以 [abcd k s i]表示如下操作
a = b + ((a + F(b,c,d) + X[k] + T) <<< s). */
/* Do the following 16 operations. */
[ABCD 0 7 1] [DABC 1 12 2] [CDAB 2 17 3] [BCDA 3 22 4]
[ABCD 4 7 5] [DABC 5 12 6] [CDAB 6 17 7] [BCDA 7 22 8]
[ABCD 8 7 9] [DABC 9 12 10] [CDAB 10 17 11] [BCDA 11 22 12]
[ABCD 12 7 13] [DABC 13 12 14] [CDAB 14 17 15] [BCDA 15 22 16]
/* 第2轮* */
/* 以 [abcd k s i]表示如下操作
a = b + ((a + G(b,c,d) + X[k] + T) <<< s). */
/* Do the following 16 operations. */
[ABCD 1 5 17] [DABC 6 9 18] [CDAB 11 14 19] [BCDA 0 20 20]
[ABCD 5 5 21] [DABC 10 9 22] [CDAB 15 14 23] [BCDA 4 20 24]
[ABCD 9 5 25] [DABC 14 9 26] [CDAB 3 14 27] [BCDA 8 20 28]
[ABCD 13 5 29] [DABC 2 9 30] [CDAB 7 14 31] [BCDA 12 20 32]
/* 第3轮*/
/* 以 [abcd k s i]表示如下操作
a = b + ((a + H(b,c,d) + X[k] + T) <<< s). */
/* Do the following 16 operations. */
[ABCD 5 4 33] [DABC 8 11 34] [CDAB 11 16 35] [BCDA 14 23 36]
[ABCD 1 4 37] [DABC 4 11 38] [CDAB 7 16 39] [BCDA 10 23 40]
[ABCD 13 4 41] [DABC 0 11 42] [CDAB 3 16 43] [BCDA 6 23 44]
[ABCD 9 4 45] [DABC 12 11 46] [CDAB 15 16 47] [BCDA 2 23 48]
/* 第4轮*/
/* 以 [abcd k s i]表示如下操作
a = b + ((a + I(b,c,d) + X[k] + T) <<< s). */
/* Do the following 16 operations. */
[ABCD 0 6 49] [DABC 7 10 50] [CDAB 14 15 51] [BCDA 5 21 52]
[ABCD 12 6 53] [DABC 3 10 54] [CDAB 10 15 55] [BCDA 1 21 56]
[ABCD 8 6 57] [DABC 15 10 58] [CDAB 6 15 59] [BCDA 13 21 60]
[ABCD 4 6 61] [DABC 11 10 62] [CDAB 2 15 63] [BCDA 9 21 64]
/* 然后进行如下操作 */
A = A + AA
B = B + BB
C = C + CC
D = D + DD
end /* 结束对I的循环*/
6、输出结果。
以上代码来自: 源代码数据库(SourceDataBase)
当前版本: 1.0.423
作者: Shawls
个人主页: Http://Shawls.Yeah.Net
E-Mail: ShawFile@163.Net
QQ: 9181729
一、算法实现(转载自绿色兵团)
1、MD5算法是对输入的数据进行补位,使得如果数据位长度LEN对512求余的结果
是448。
即数据扩展至K*512+448位。即K*64+56个字节,K为整数。
具体补位操作:补一个1,然后补0至满足上述要求
2、补数据长度:
用一个64位的数字表示数据的原始长度B,把B用两个32位数表示。这时,数据
就被填
补成长度为512位的倍数。
3. 初始化MD5参数
四个32位整数 (A,B,C,D) 用来计算信息摘要,初始化使用的是十六进制表示
的数字
A=0X01234567
B=0X89abcdef
C=0Xfedcba98
D=0X76543210
4、处理位操作函数
X,Y,Z为32位整数。
F(X,Y,Z) = X&Y|NOT(X)&Z
G(X,Y,Z) = X&Z|Y¬(Z)
H(X,Y,Z) = X xor Y xor Z
I(X,Y,Z) = Y xor (X|not(Z))
5、主要变换过程:
使用常数组T[1 ... 64], T为32位整数用16进制表示,数据用16个32位的
整
数数组M[]表示。
具体过程如下:
/* 处理数据原文 */
For i = 0 to N/16-1 do
/*每一次,把数据原文存放在16个元素的数组X中. */
For j = 0 to 15 do
Set X[j] to M[i*16+j].
end /结束对J的循环
/* Save A as AA, B as BB, C as CC, and D as DD. */
AA = A
BB = B
CC = C
DD = D
/* 第1轮*/
/* 以 [abcd k s i]表示如下操作
a = b + ((a + F(b,c,d) + X[k] + T) <<< s). */
/* Do the following 16 operations. */
[ABCD 0 7 1] [DABC 1 12 2] [CDAB 2 17 3] [BCDA 3 22 4]
[ABCD 4 7 5] [DABC 5 12 6] [CDAB 6 17 7] [BCDA 7 22 8]
[ABCD 8 7 9] [DABC 9 12 10] [CDAB 10 17 11] [BCDA 11 22 12]
[ABCD 12 7 13] [DABC 13 12 14] [CDAB 14 17 15] [BCDA 15 22 16]
/* 第2轮* */
/* 以 [abcd k s i]表示如下操作
a = b + ((a + G(b,c,d) + X[k] + T) <<< s). */
/* Do the following 16 operations. */
[ABCD 1 5 17] [DABC 6 9 18] [CDAB 11 14 19] [BCDA 0 20 20]
[ABCD 5 5 21] [DABC 10 9 22] [CDAB 15 14 23] [BCDA 4 20 24]
[ABCD 9 5 25] [DABC 14 9 26] [CDAB 3 14 27] [BCDA 8 20 28]
[ABCD 13 5 29] [DABC 2 9 30] [CDAB 7 14 31] [BCDA 12 20 32]
/* 第3轮*/
/* 以 [abcd k s i]表示如下操作
a = b + ((a + H(b,c,d) + X[k] + T) <<< s). */
/* Do the following 16 operations. */
[ABCD 5 4 33] [DABC 8 11 34] [CDAB 11 16 35] [BCDA 14 23 36]
[ABCD 1 4 37] [DABC 4 11 38] [CDAB 7 16 39] [BCDA 10 23 40]
[ABCD 13 4 41] [DABC 0 11 42] [CDAB 3 16 43] [BCDA 6 23 44]
[ABCD 9 4 45] [DABC 12 11 46] [CDAB 15 16 47] [BCDA 2 23 48]
/* 第4轮*/
/* 以 [abcd k s i]表示如下操作
a = b + ((a + I(b,c,d) + X[k] + T) <<< s). */
/* Do the following 16 operations. */
[ABCD 0 6 49] [DABC 7 10 50] [CDAB 14 15 51] [BCDA 5 21 52]
[ABCD 12 6 53] [DABC 3 10 54] [CDAB 10 15 55] [BCDA 1 21 56]
[ABCD 8 6 57] [DABC 15 10 58] [CDAB 6 15 59] [BCDA 13 21 60]
[ABCD 4 6 61] [DABC 11 10 62] [CDAB 2 15 63] [BCDA 9 21 64]
/* 然后进行如下操作 */
A = A + AA
B = B + BB
C = C + CC
D = D + DD
end /* 结束对I的循环*/
6、输出结果。
以上代码来自: 源代码数据库(SourceDataBase)
当前版本: 1.0.423
作者: Shawls
个人主页: Http://Shawls.Yeah.Net
E-Mail: ShawFile@163.Net
QQ: 9181729
(二)编码部分
ASP中实现MD5加密
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MD5加密的javascript实现例子
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MD5算法的T-SQL实现(FOR SQL2000)
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ASP.NET实现方式 ( ASP.NET中密码保护,MD5和SHA1算法的使用 )
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