A. 急求 MD5的加密解密演算法，用C++實現的源代碼 高分答謝
要代碼，還是要相關的解釋資料？
---------------------------------
要代碼的話：
兩個文件：
--------------------------
1. md5.h：
#pragma once
typedef unsigned long int UINT32;
typedef unsigned short int UINT16;
/* MD5 context. */
typedef struct {
UINT32 state[4]; /* state (ABCD) */
UINT32 count[2]; /* number of bits, molo 2^64 (lsb first) */
unsigned char buffer[64]; /* input buffer */
} MD5_CTX;
void MD5Init (MD5_CTX *);
void MD5Update (MD5_CTX *, unsigned char *, unsigned int);
void MD5Final (unsigned char [16], MD5_CTX *);
--------------------------
2. md5.cpp：
#include "md5.h"
#include "memory.h"
#define S11 7
#define S12 12
#define S13 17
#define S14 22
#define S21 5
#define S22 9
#define S23 14
#define S24 20
#define S31 4
#define S32 11
#define S33 16
#define S34 23
#define S41 6
#define S42 10
#define S43 15
#define S44 21
static void MD5Transform (UINT32 a[4], unsigned char b[64]);
static void Encode (unsigned char *, UINT32 *, unsigned int);
static void Decode (UINT32 *, unsigned char *, unsigned int);
static unsigned char PADDING[64] = {
0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
#define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
#define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
#define H(x, y, z) ((x) ^ (y) ^ (z))
#define I(x, y, z) ((y) ^ ((x) | (~z)))
#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
#define FF(a, b, c, d, x, s, ac) { \
(a) += F ((b), (c), (d)) + (x) + (UINT32)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
#define GG(a, b, c, d, x, s, ac) { \
(a) += G ((b), (c), (d)) + (x) + (UINT32)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
#define HH(a, b, c, d, x, s, ac) { \
(a) += H ((b), (c), (d)) + (x) + (UINT32)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
#define II(a, b, c, d, x, s, ac) { \
(a) += I ((b), (c), (d)) + (x) + (UINT32)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
void MD5Init (MD5_CTX *context)
{
context->count[0] = context->count[1] = 0;
context->state[0] = 0x67452301;
context->state[1] = 0xefcdab89;
context->state[2] = 0x98badcfe;
context->state[3] = 0x10325476;
}
void MD5Update (MD5_CTX *context, unsigned char *input, unsigned int inputLen)
{
unsigned int i, index, partLen;
index = (unsigned int)((context->count[0] >> 3) & 0x3F);
if ((context->count[0] += ((UINT32)inputLen << 3))
< ((UINT32)inputLen << 3))
context->count[1]++;
context->count[1] += ((UINT32)inputLen >> 29);
partLen = 64 - index;
if (inputLen >= partLen) {
memcpy((unsigned char *)&context->buffer[index], (unsigned char *)input, partLen);
MD5Transform (context->state, context->buffer);
for (i = partLen; i + 63 < inputLen; i += 64)
MD5Transform (context->state, &input[i]);
index = 0;
}
else
i = 0;
memcpy((unsigned char *)&context->buffer[index], (unsigned char *)&input[i],
inputLen-i);
}
void MD5Final (unsigned char digest[16], MD5_CTX * context)
{
unsigned char bits[8];
unsigned int index, padLen;
Encode (bits, context->count, 8);
index = (unsigned int)((context->count[0] >> 3) & 0x3f);
padLen = (index < 56) ? (56 - index) : (120 - index);
MD5Update (context, PADDING, padLen);
MD5Update (context, bits, 8);
Encode (digest, context->state, 16);
memset ((unsigned char *)context, 0, sizeof (*context));
}
static void MD5Transform (UINT32 state[4], unsigned char block[64])
{
UINT32 a = state[0], b = state[1], c = state[2], d = state[3], x[16];
Decode (x, block, 64);
/* Round 1 */
FF (a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */
FF (d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */
FF (c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */
FF (b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */
FF (a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */
FF (d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */
FF (c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */
FF (b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */
FF (a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */
FF (d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */
FF (c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */
FF (b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */
FF (a, b, c, d, x[12], S11, 0x6b901122); /* 13 */
FF (d, a, b, c, x[13], S12, 0xfd987193); /* 14 */
FF (c, d, a, b, x[14], S13, 0xa679438e); /* 15 */
FF (b, c, d, a, x[15], S14, 0x49b40821); /* 16 */
/* Round 2 */
GG (a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */
GG (d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */
GG (c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */
GG (b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */
GG (a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */
GG (d, a, b, c, x[10], S22, 0x2441453); /* 22 */
GG (c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */
GG (b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */
GG (a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */
GG (d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */
GG (c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */
GG (b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */
GG (a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */
GG (d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */
GG (c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */
GG (b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */
/* Round 3 */
HH (a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */
HH (d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */
HH (c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */
HH (b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */
HH (a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */
HH (d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */
HH (c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */
HH (b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */
HH (a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */
HH (d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */
HH (c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */
HH (b, c, d, a, x[ 6], S34, 0x4881d05); /* 44 */
HH (a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */
HH (d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */
HH (c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */
HH (b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */
/* Round 4 */
II (a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */
II (d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */
II (c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */
II (b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */
II (a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */
II (d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */
II (c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */
II (b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */
II (a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */
II (d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */
II (c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */
II (b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */
II (a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */
II (d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */
II (c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */
II (b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */
state[0] += a;
state[1] += b;
state[2] += c;
state[3] += d;
memset ((unsigned char *)x, 0, sizeof (x));
}
static void Encode (unsigned char *output, UINT32 *input, unsigned int len)
{
unsigned int i, j;
for (i = 0, j = 0; j < len; i++, j += 4) {
output[j] = (unsigned char)(input[i] & 0xff);
output[j+1] = (unsigned char)((input[i] >> 8) & 0xff);
output[j+2] = (unsigned char)((input[i] >> 16) & 0xff);
output[j+3] = (unsigned char)((input[i] >> 24) & 0xff);
}
}
static void Decode (UINT32 *output, unsigned char *input, unsigned int len)
{
unsigned int i, j;
for (i = 0, j = 0; j < len; i++, j += 4)
output[i] = ((UINT32)input[j]) | (((UINT32)input[j+1]) << 8) |
(((UINT32)input[j+2]) << 16) | (((UINT32)input[j+3]) << 24);
}
--------------------------
就這兩個文件。使用的時候把它們加入工程或者makefile，調用時包含md5.h即可，給個簡單的例子，輸入一個字元串然後計算它的md5值並輸出，在VC6.0和GCC4.4下測試通過：
#include <stdio.h>
#include <string.h>
#include "md5.h"
int main ()
{
char tmp[128];
unsigned char digest[16];
MD5_CTX context;
scanf("%s",tmp);
MD5Init (&context);
MD5Update (&context, (unsigned char*)tmp, strlen(tmp));
MD5Final (digest,&context);
printf("MD5Value:");
for(int i=0; i<16; ++i)
{
printf("%02X",digest[i]);
}
printf("\n");
return 0;
}
B. C#實現MD5加密
花了五分鍾就搞定了。
有時間多光顧一下我的博客：http://hi..com/greatzhenren
using System;
using System.Text;
using System.Security.Cryptography;
namespace ConsoleApplication3
{
class Program
{
static void Main(string[] args)
{
string inStr;
inStr = "犍為真人";
inStr += "\xa3\xac\xa1\xa3";
inStr += "fdjf,jkgfkl";
MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
byte[] InBytes = Encoding.GetEncoding("GB2312").GetBytes(inStr);
byte[] OutBytes= md5.ComputeHash(InBytes);
string OutString = "";
for (int i = 0; i < OutBytes.Length; i++)
{
OutString += OutBytes[i].ToString("x2");
}
Console.WriteLine(OutString);
}
}
}
C. MD5加密演算法的解密源代碼(VB的)
MD5加密演算法: 見附件..
解密沒有的,MD5不支持解密,因為在加密的時候是隨機移位數的..
D. 如何對字元串進行MD5加密,用C語言實現,給出源代碼和加密函數
/*四個32bits數,用於存放最終計算得到的消息摘要.當消息長度>512bits時,也用於存放每個512bits的中間結果*/ UINT4 state[4]; /*存儲原始信息的bits數長度,不包括填充的bits,最長為2^64 bits*/ UINT4 count[2]; /*存放輸入的信息的緩沖區,512bits*/ unsigned char buffer[64];} MD5_CTX;static void MD5Transform(UINT4[4], unsigned char[64]); static void Encode(unsigned char *, UINT4 *, unsigned int); static void Decode(UINT4 *, unsigned char *, unsigned int);/*用於bits填充的緩沖區,當欲加密的信息的bits數被512除其餘數為448時,需要填充的bits的最大值為512=64*8*/ static unsigned char PADDING[64] = { 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};/*接下來的這幾個宏定義是md5演算法規定的,就是對信息進行md5加密都要做的運算*/ #define F(x, y, z) (((x) & (y)) | ((~x) & (z))) #define G(x, y, z) (((x) & (z)) | ((y) & (~z))) #define H(x, y, z) ((x) ^ (y) ^ (z)) #define I(x, y, z) ((y) ^ ((x) | (~z))) #define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n)))) #define FF(a, b, c, d, x, s, ac) {\ (a) += F ((b), (c), (d)) + (x) + (UINT4)(ac);\ (a) = ROTATE_LEFT ((a), (s));\ (a) += (b);\}#define GG(a, b, c, d, x, s, ac) {\ (a) += G ((b), (c), (d)) + (x) + (UINT4)(ac);\ (a) = ROTATE_LEFT ((a), (s));\ (a) += (b);\}#define HH(a, b, c, d, x, s, ac) {\ (a) += H ((b), (c), (d)) + (x) + (UINT4)(ac);\ (a) = ROTATE_LEFT ((a), (s));\ (a) += (b);\}#define II(a, b, c, d, x, s, ac) {\ (a) += I ((b), (c), (d)) + (x) + (UINT4)(ac);\
E. 求java加密源代碼（MD5，base64）
加密什麼加密字元串嗎，我這里有md5的演算法
public final static String MD5(String pwd) {
char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'A', 'B', 'C', 'D', 'E', 'F' };
try {
byte[] strTemp = pwd.getBytes();
MessageDigest mdTemp = MessageDigest.getInstance("MD5");
mdTemp.update(strTemp);
byte[] md = mdTemp.digest();
int j = md.length;
char str[] = new char[j * 2];
int k = 0;
for (int i = 0; i < j; i++) {
byte byte0 = md[i];
str[k++] = hexDigits[byte0 >>> 4 & 0xf];
str[k++] = hexDigits[byte0 & 0xf];
}
return new String(str);
} catch (Exception e) {
return null;
}
}
F. 怎麼用MD5加密呀ASP
一樓的是MD5加密程序，這個是必須的，你先把他給的那段代碼放一個ASP頁面里取名md5.asp
然後加密的話直接在另一個頁面<!--#include file="md5.asp"-->包含，再直接用md5這個函數進行加密
比如要加密 KKKKKOO
那就寫<%=md5("KKKKKOO")%>
如果是給變數加密，就照一樓說的做就OK了
思路？什麼思路？MD5加密？
昏厥，這給你講到猴年馬月啊，有空可以慢慢研究一下MD5編碼，反正破解MD5的方法也有了，這個加密也只適合一般的網站應用，別人給你弄好了用就OK了....~
G. 如何對字元串進行MD5加密,用C語言實現,給出源代碼和加密函數
UINT4 state[4]; /*存儲原始信息的bits數長度,不包括填充的bits,最長為2^64 bits*/ UINT4 count[2]; /*存放輸入的信息的緩沖區,512bits*/ unsigned char buffer[64];} MD5_CTX;static void MD5Transform(UINT4[4], unsigned char[64]); static void Encode(unsigned char *, UINT4 *, unsigned int); static void Decode(UINT4 *, unsigned char *, unsigned int);/*用於bits填充的緩沖區,當欲加密的信息的bits數被512除其餘數為448時,需要填充的bits的最大值為512=64*8*/ static unsigned char PADDING[64] = { 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};/*接下來的這幾個宏定義是md5演算法規定的,就是對信息進行md5加密都要做的運算*/
H. 用VB實現MD5加密
md5加密運算是不可逆的，就是說不能通過那一串古古怪怪的東西算出它原始的樣子。
以下提供VB可用的16位和32位MD5加密函數代碼：
PrivateConstBITS_TO_A_BYTE=8
PrivateConstBYTES_TO_A_WORD=4
PrivateConstBITS_TO_A_WORD=32
Privatem_lOnBits(30)
Privatem_l2Power(30)
PrivateFunctionLShift(lValue,iShiftBits)
IfiShiftBits=0Then
LShift=lValue
ExitFunction
ElseIfiShiftBits=31Then
IflValueAnd1Then
LShift=&H80000000
Else
LShift=0
EndIf
ExitFunction
ElseIfiShiftBits<0OriShiftBits>31Then
Err.Raise6
EndIf
If(lValueAndm_l2Power(31-iShiftBits))Then
LShift=((lValueAndm_lOnBits(31-(iShiftBits+1)))*m_l2Power(iShiftBits))Or&H80000000
Else
LShift=((lValueAndm_lOnBits(31-iShiftBits))*m_l2Power(iShiftBits))
EndIf
EndFunction
PrivateFunctionRShift(lValue,iShiftBits)
IfiShiftBits=0Then
RShift=lValue
ExitFunction
ElseIfiShiftBits=31Then
IflValueAnd&H80000000Then
RShift=1
Else
RShift=0
EndIf
ExitFunction
ElseIfiShiftBits<0OriShiftBits>31Then
Err.Raise6
EndIf
RShift=(lValueAnd&H7FFFFFFE)m_l2Power(iShiftBits)
If(lValueAnd&H80000000)Then
RShift=(RShiftOr(&H40000000m_l2Power(iShiftBits-1)))
EndIf
EndFunction
PrivateFunctionRotateLeft(lValue,iShiftBits)
RotateLeft=LShift(lValue,iShiftBits)OrRShift(lValue,(32-iShiftBits))
EndFunction
PrivateFunctionAddUnsigned(lX,lY)
DimlX4
DimlY4
DimlX8
DimlY8
DimlResult
lX8=lXAnd&H80000000
lY8=lYAnd&H80000000
lX4=lXAnd&H40000000
lY4=lYAnd&H40000000
lResult=(lXAnd&H3FFFFFFF)+(lYAnd&H3FFFFFFF)
IflX4AndlY4Then
lResult=lResultXor&H80000000XorlX8XorlY8
ElseIflX4OrlY4Then
IflResultAnd&H40000000Then
lResult=lResultXor&HC0000000XorlX8XorlY8
Else
lResult=lResultXor&H40000000XorlX8XorlY8
EndIf
Else
lResult=lResultXorlX8XorlY8
EndIf
AddUnsigned=lResult
EndFunction
PrivateFunctionmd5_F(x,y,z)
md5_F=(xAndy)Or((Notx)Andz)
EndFunction
PrivateFunctionmd5_G(x,y,z)
md5_G=(xAndz)Or(yAnd(Notz))
EndFunction
PrivateFunctionmd5_H(x,y,z)
md5_H=(xXoryXorz)
EndFunction
PrivateFunctionmd5_I(x,y,z)
md5_I=(yXor(xOr(Notz)))
EndFunction
PrivateSubmd5_FF(a,b,c,d,x,s,ac)
a=AddUnsigned(a,AddUnsigned(AddUnsigned(md5_F(b,c,d),x),ac))
a=RotateLeft(a,s)
a=AddUnsigned(a,b)
EndSub
PrivateSubmd5_GG(a,b,c,d,x,s,ac)
a=AddUnsigned(a,AddUnsigned(AddUnsigned(md5_G(b,c,d),x),ac))
a=RotateLeft(a,s)
a=AddUnsigned(a,b)
EndSub
PrivateSubmd5_HH(a,b,c,d,x,s,ac)
a=AddUnsigned(a,AddUnsigned(AddUnsigned(md5_H(b,c,d),x),ac))
a=RotateLeft(a,s)
a=AddUnsigned(a,b)
EndSub
PrivateSubmd5_II(a,b,c,d,x,s,ac)
a=AddUnsigned(a,AddUnsigned(AddUnsigned(md5_I(b,c,d),x),ac))
a=RotateLeft(a,s)
a=AddUnsigned(a,b)
EndSub
(sMessage)
DimlMessageLength
DimlNumberOfWords
DimlWordArray()
DimlBytePosition
DimlByteCount
DimlWordCount
ConstMODULUS_BITS=512
ConstCONGRUENT_BITS=448
lMessageLength=Len(sMessage)
lNumberOfWords=(((lMessageLength+((MODULUS_BITS-CONGRUENT_BITS)BITS_TO_A_BYTE))(MODULUS_BITSBITS_TO_A_BYTE))+1)*(MODULUS_BITSBITS_TO_A_WORD)
ReDimlWordArray(lNumberOfWords-1)
lBytePosition=0
lByteCount=0
DoUntillByteCount>=lMessageLength
lWordCount=lByteCountBYTES_TO_A_WORD
lBytePosition=(lByteCountModBYTES_TO_A_WORD)*BITS_TO_A_BYTE
lWordArray(lWordCount)=lWordArray(lWordCount)OrLShift(Asc(Mid(sMessage,lByteCount+1,1)),lBytePosition)
lByteCount=lByteCount+1
Loop
lWordCount=lByteCountBYTES_TO_A_WORD
lBytePosition=(lByteCountModBYTES_TO_A_WORD)*BITS_TO_A_BYTE
lWordArray(lWordCount)=lWordArray(lWordCount)OrLShift(&H80,lBytePosition)
lWordArray(lNumberOfWords-2)=LShift(lMessageLength,3)
lWordArray(lNumberOfWords-1)=RShift(lMessageLength,29)
ConvertToWordArray=lWordArray
EndFunction
PrivateFunctionWordToHex(lValue)
DimlByte
DimlCount
ForlCount=0To3
lByte=RShift(lValue,lCount*BITS_TO_A_BYTE)Andm_lOnBits(BITS_TO_A_BYTE-1)
WordToHex=WordToHex&Right("0"&Hex(lByte),2)
Next
EndFunction
PublicFunctionMD5(sMessage,stype)
m_lOnBits(0)=CLng(1)
m_lOnBits(1)=CLng(3)
m_lOnBits(2)=CLng(7)
m_lOnBits(3)=CLng(15)
m_lOnBits(4)=CLng(31)
m_lOnBits(5)=CLng(63)
m_lOnBits(6)=CLng(127)
m_lOnBits(7)=CLng(255)
m_lOnBits(8)=CLng(511)
m_lOnBits(9)=CLng(1023)
m_lOnBits(10)=CLng(2047)
m_lOnBits(11)=CLng(4095)
m_lOnBits(12)=CLng(8191)
m_lOnBits(13)=CLng(16383)
m_lOnBits(14)=CLng(32767)
m_lOnBits(15)=CLng(65535)
m_lOnBits(16)=CLng(131071)
m_lOnBits(17)=CLng(262143)
m_lOnBits(18)=CLng(524287)
m_lOnBits(19)=CLng(1048575)
m_lOnBits(20)=CLng(2097151)
m_lOnBits(21)=CLng(4194303)
m_lOnBits(22)=CLng(8388607)
m_lOnBits(23)=CLng(16777215)
m_lOnBits(24)=CLng(33554431)
m_lOnBits(25)=CLng(67108863)
m_lOnBits(26)=CLng(134217727)
m_lOnBits(27)=CLng(268435455)
m_lOnBits(28)=CLng(536870911)
m_lOnBits(29)=CLng(1073741823)
m_lOnBits(30)=CLng(2147483647)
m_l2Power(0)=CLng(1)
m_l2Power(1)=CLng(2)
m_l2Power(2)=CLng(4)
m_l2Power(3)=CLng(8)
m_l2Power(4)=CLng(16)
m_l2Power(5)=CLng(32)
m_l2Power(6)=CLng(64)
m_l2Power(7)=CLng(128)
m_l2Power(8)=CLng(256)
m_l2Power(9)=CLng(512)
m_l2Power(10)=CLng(1024)
m_l2Power(11)=CLng(2048)
m_l2Power(12)=CLng(4096)
m_l2Power(13)=CLng(8192)
m_l2Power(14)=CLng(16384)
m_l2Power(15)=CLng(32768)
m_l2Power(16)=CLng(65536)
m_l2Power(17)=CLng(131072)
m_l2Power(18)=CLng(262144)
m_l2Power(19)=CLng(524288)
m_l2Power(20)=CLng(1048576)
m_l2Power(21)=CLng(2097152)
m_l2Power(22)=CLng(4194304)
m_l2Power(23)=CLng(8388608)
m_l2Power(24)=CLng(16777216)
m_l2Power(25)=CLng(33554432)
m_l2Power(26)=CLng(67108864)
m_l2Power(27)=CLng(134217728)
m_l2Power(28)=CLng(268435456)
m_l2Power(29)=CLng(536870912)
m_l2Power(30)=CLng(1073741824)
Dimx
Dimk
DimAA
DimBB
DimCC
DimDD
Dima
Dimb
Dimc
Dimd
ConstS11=7
ConstS12=12
ConstS13=17
ConstS14=22
ConstS21=5
ConstS22=9
ConstS23=14
ConstS24=20
ConstS31=4
ConstS32=11
ConstS33=16
ConstS34=23
ConstS41=6
ConstS42=10
ConstS43=15
ConstS44=21
x=ConvertToWordArray(sMessage)
a=&H67452301
b=&HEFCDAB89
c=&H98BADCFE
d=&H10325476
Fork=0ToUBound(x)Step16
AA=a
BB=b
CC=c
DD=d
md5_FFa,b,c,d,x(k+0),S11,&HD76AA478
md5_FFd,a,b,c,x(k+1),S12,&HE8C7B756
md5_FFc,d,a,b,x(k+2),S13,&H242070DB
md5_FFb,c,d,a,x(k+3),S14,&HC1BDCEEE
md5_FFa,b,c,d,x(k+4),S11,&HF57C0FAF
md5_FFd,a,b,c,x(k+5),S12,&H4787C62A
md5_FFc,d,a,b,x(k+6),S13,&HA8304613
md5_FFb,c,d,a,x(k+7),S14,&HFD469501
md5_FFa,b,c,d,x(k+8),S11,&H698098D8
md5_FFd,a,b,c,x(k+9),S12,&H8B44F7AF
md5_FFc,d,a,b,x(k+10),S13,&HFFFF5BB1
md5_FFb,c,d,a,x(k+11),S14,&H895CD7BE
md5_FFa,b,c,d,x(k+12),S11,&H6B901122
md5_FFd,a,b,c,x(k+13),S12,&HFD987193
md5_FFc,d,a,b,x(k+14),S13,&HA679438E
md5_FFb,c,d,a,x(k+15),S14,&H49B40821
md5_GGa,b,c,d,x(k+1),S21,&HF61E2562
md5_GGd,a,b,c,x(k+6),S22,&HC040B340
md5_GGc,d,a,b,x(k+11),S23,&H265E5A51
md5_GGb,c,d,a,x(k+0),S24,&HE9B6C7AA
md5_GGa,b,c,d,x(k+5),S21,&HD62F105D
md5_GGd,a,b,c,x(k+10),S22,&H2441453
md5_GGc,d,a,b,x(k+15),S23,&HD8A1E681
md5_GGb,c,d,a,x(k+4),S24,&HE7D3FBC8
md5_GGa,b,c,d,x(k+9),S21,&H21E1CDE6
md5_GGd,a,b,c,x(k+14),S22,&HC33707D6
md5_GGc,d,a,b,x(k+3),S23,&HF4D50D87
md5_GGb,c,d,a,x(k+8),S24,&H455A14ED
md5_GGa,b,c,d,x(k+13),S21,&HA9E3E905
md5_GGd,a,b,c,x(k+2),S22,&HFCEFA3F8
md5_GGc,d,a,b,x(k+7),S23,&H676F02D9
md5_GGb,c,d,a,x(k+12),S24,&H8D2A4C8A
md5_HHa,b,c,d,x(k+5),S31,&HFFFA3942
md5_HHd,a,b,c,x(k+8),S32,&H8771F681
md5_HHc,d,a,b,x(k+11),S33,&H6D9D6122
md5_HHb,c,d,a,x(k+14),S34,&HFDE5380C
md5_HHa,b,c,d,x(k+1),S31,&HA4BEEA44
md5_HHd,a,b,c,x(k+4),S32,&H4BDECFA9
md5_HHc,d,a,b,x(k+7),S33,&HF6BB4B60
md5_HHb,c,d,a,x(k+10),S34,&HBEBFBC70
md5_HHa,b,c,d,x(k+13),S31,&H289B7EC6
md5_HHd,a,b,c,x(k+0),S32,&HEAA127FA
md5_HHc,d,a,b,x(k+3),S33,&HD4EF3085
md5_HHb,c,d,a,x(k+6),S34,&H4881D05
md5_HHa,b,c,d,x(k+9),S31,&HD9D4D039
md5_HHd,a,b,c,x(k+12),S32,&HE6DB99E5
md5_HHc,d,a,b,x(k+15),S33,&H1FA27CF8
md5_HHb,c,d,a,x(k+2),S34,&HC4AC5665
md5_IIa,b,c,d,x(k+0),S41,&HF4292244
md5_IId,a,b,c,x(k+7),S42,&H432AFF97
md5_IIc,d,a,b,x(k+14),S43,&HAB9423A7
md5_IIb,c,d,a,x(k+5),S44,&HFC93A039
md5_IIa,b,c,d,x(k+12),S41,&H655B59C3
md5_IId,a,b,c,x(k+3),S42,&H8F0CCC92
md5_IIc,d,a,b,x(k+10),S43,&HFFEFF47D
md5_IIb,c,d,a,x(k+1),S44,&H85845DD1
md5_IIa,b,c,d,x(k+8),S41,&H6FA87E4F
md5_IId,a,b,c,x(k+15),S42,&HFE2CE6E0
md5_IIc,d,a,b,x(k+6),S43,&HA3014314
md5_IIb,c,d,a,x(k+13),S44,&H4E0811A1
md5_IIa,b,c,d,x(k+4),S41,&HF7537E82
md5_IId,a,b,c,x(k+11),S42,&HBD3AF235
md5_IIc,d,a,b,x(k+2),S43,&H2AD7D2BB
md5_IIb,c,d,a,x(k+9),S44,&HEB86D391
a=AddUnsigned(a,AA)
b=AddUnsigned(b,BB)
c=AddUnsigned(c,CC)
d=AddUnsigned(d,DD)
Next
Ifstype=32Then
MD5=LCase(WordToHex(a)&WordToHex(b)&WordToHex(c)&WordToHex(d))
Else
MD5=LCase(WordToHex(b)&WordToHex(c))
EndIf
EndFunction
'下面是測試代碼
Subtest()
MsgBoxMD5("a",16)'16位加密
MsgBoxMD5("a",32)'32位加密
EndSub