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下面这VB的DES 有没有delphi版本对应的
太长了，写不下 原文在 http://bbs.csdn.net/topics/390704215 这里的 10楼
<%
Class Cls_DES
Private IPRule, CPRule, EPRule, PRule, SBox(7), PCRule(1), MvRule
Private K(16), L(16), R(16)
Private FillCode, DesStatus
Private Sub Class_Initialize()
DesStatus = -1
FillCode = "0001101"
IPRule = "58,50,42,34,26,18,10,2," &_
"60,52,44,36,28,20,12,4," &_
"62,54,46,38,30,22,14,6," &_
"64,56,48,40,32,24,16,8," &_
"57,49,41,33,25,17, 9,1," &_
"59,51,43,35,27,19,11,3," &_
"61,53,45,37,29,21,13,5," &_
"63,55,47,39,31,23,15,7,"
CPRule = "40, 8,48,16,56,24,64,32," &_
"39, 7,47,15,55,23,63,31," &_
"38, 6,46,14,54,22,62,30," &_
"37, 5,45,13,53,21,61,29," &_
"36, 4,44,12,52,20,60,28," &_
"35, 3,43,11,51,19,59,27," &_
"34, 2,42,10,50,18,58,26," &_
"33, 1,41, 9,49,17,57,25,"
EPRule = "32, 1, 2, 3, 4, 5," &_
" 4, 5, 6, 7, 8, 9," &_
" 8, 9,10,11,12,13," &_
"12,13,14,15,16,17," &_
"16,17,18,19,20,21," &_
"20,21,22,23,24,25," &_
"24,25,26,27,28,29," &_
"28,29,30,31,32, 1,"
PRule = "16, 7,20,21,29,12,28,17," &_
" 1,15,23,26, 5,18,31,10," &_
" 2, 8,24,14,32,27, 3, 9," &_
"19,13,30, 6,22,11, 4,25,"
SBox(0) = "14, 4,13, 1, 2,15,11, 8, 3,10, 6,12, 5, 9, 0, 7," &_
" 0,15, 7, 4,14, 2,13, 1,10, 6,12,11, 9, 5, 3, 8," &_
" 4, 1,14, 8,13, 6, 2,11,15,12, 9, 7, 3,10, 5, 0," &_
"15,12, 8, 2, 4, 9, 1, 7, 5,11, 3,14,10, 0, 6,13,"
SBox(1) = "15, 1, 8,14, 6,11, 3, 4, 9, 7, 2,13,12, 0, 5,10," &_
" 3,13, 4, 7,15, 2, 8,14,12, 0, 1,10, 6, 9,11, 5," &_
" 0,14, 7,11,10, 4,13, 1, 5, 8,12, 6, 9, 3, 2,15," &_
"13, 8,10, 1, 3,15, 4, 2,11, 6, 7,12, 0, 5,14, 9,"
SBox(2) = "10, 0, 9,14, 6, 3,15, 5, 1,13,12, 7,11, 4, 2, 8," &_
"13, 7, 0, 9, 3, 4, 6,10, 2, 8, 5,14,12,11,15, 1," &_
"13, 6, 4, 9, 8,15, 3, 0,11, 1, 2,12, 5,10,14, 7," &_
" 1,10,13, 0, 6, 9, 8, 7, 4,15,14, 3,11, 5, 2,12,"
SBox(3) = " 7,13,14, 3, 0, 6, 9,10, 1, 2, 8, 5,11,12, 4,15," &_
"13, 8,11, 5, 6,15, 0, 3, 4, 7, 2,12, 1,10,14, 9," &_
"10, 6, 9, 0,12,11, 7,13,15, 1, 3,14, 5, 2, 8, 4," &_
" 3,15, 0, 6,10, 1,13, 8, 9, 4, 5,11,12, 7, 2,14,"
SBox(4) = " 2,12, 4, 1, 7,10,11, 6, 8, 5, 3,15,13, 0,14, 9," &_
"14,11, 2,12, 4, 7,13, 1, 5, 0,15,10, 3, 9, 8, 6," &_
" 4, 2, 1,11,10,13, 7, 8,15, 9,12, 5, 6, 3, 0,14," &_
"11, 8,12, 7, 1,14, 2,13, 6,15, 0, 9,10, 4, 5, 3,"
SBox(5) = "12, 1,10,15, 9, 2, 6, 8, 0,13, 3, 4,14, 7, 5,11," &_
太长了，写不下 原文在 http://bbs.csdn.net/topics/390704215 这里的 10楼
<%
Class Cls_DES
Private IPRule, CPRule, EPRule, PRule, SBox(7), PCRule(1), MvRule
Private K(16), L(16), R(16)
Private FillCode, DesStatus
Private Sub Class_Initialize()
DesStatus = -1
FillCode = "0001101"
IPRule = "58,50,42,34,26,18,10,2," &_
"60,52,44,36,28,20,12,4," &_
"62,54,46,38,30,22,14,6," &_
"64,56,48,40,32,24,16,8," &_
"57,49,41,33,25,17, 9,1," &_
"59,51,43,35,27,19,11,3," &_
"61,53,45,37,29,21,13,5," &_
"63,55,47,39,31,23,15,7,"
CPRule = "40, 8,48,16,56,24,64,32," &_
"39, 7,47,15,55,23,63,31," &_
"38, 6,46,14,54,22,62,30," &_
"37, 5,45,13,53,21,61,29," &_
"36, 4,44,12,52,20,60,28," &_
"35, 3,43,11,51,19,59,27," &_
"34, 2,42,10,50,18,58,26," &_
"33, 1,41, 9,49,17,57,25,"
EPRule = "32, 1, 2, 3, 4, 5," &_
" 4, 5, 6, 7, 8, 9," &_
" 8, 9,10,11,12,13," &_
"12,13,14,15,16,17," &_
"16,17,18,19,20,21," &_
"20,21,22,23,24,25," &_
"24,25,26,27,28,29," &_
"28,29,30,31,32, 1,"
PRule = "16, 7,20,21,29,12,28,17," &_
" 1,15,23,26, 5,18,31,10," &_
" 2, 8,24,14,32,27, 3, 9," &_
"19,13,30, 6,22,11, 4,25,"
SBox(0) = "14, 4,13, 1, 2,15,11, 8, 3,10, 6,12, 5, 9, 0, 7," &_
" 0,15, 7, 4,14, 2,13, 1,10, 6,12,11, 9, 5, 3, 8," &_
" 4, 1,14, 8,13, 6, 2,11,15,12, 9, 7, 3,10, 5, 0," &_
"15,12, 8, 2, 4, 9, 1, 7, 5,11, 3,14,10, 0, 6,13,"
SBox(1) = "15, 1, 8,14, 6,11, 3, 4, 9, 7, 2,13,12, 0, 5,10," &_
" 3,13, 4, 7,15, 2, 8,14,12, 0, 1,10, 6, 9,11, 5," &_
" 0,14, 7,11,10, 4,13, 1, 5, 8,12, 6, 9, 3, 2,15," &_
"13, 8,10, 1, 3,15, 4, 2,11, 6, 7,12, 0, 5,14, 9,"
SBox(2) = "10, 0, 9,14, 6, 3,15, 5, 1,13,12, 7,11, 4, 2, 8," &_
"13, 7, 0, 9, 3, 4, 6,10, 2, 8, 5,14,12,11,15, 1," &_
"13, 6, 4, 9, 8,15, 3, 0,11, 1, 2,12, 5,10,14, 7," &_
" 1,10,13, 0, 6, 9, 8, 7, 4,15,14, 3,11, 5, 2,12,"
SBox(3) = " 7,13,14, 3, 0, 6, 9,10, 1, 2, 8, 5,11,12, 4,15," &_
"13, 8,11, 5, 6,15, 0, 3, 4, 7, 2,12, 1,10,14, 9," &_
"10, 6, 9, 0,12,11, 7,13,15, 1, 3,14, 5, 2, 8, 4," &_
" 3,15, 0, 6,10, 1,13, 8, 9, 4, 5,11,12, 7, 2,14,"
SBox(4) = " 2,12, 4, 1, 7,10,11, 6, 8, 5, 3,15,13, 0,14, 9," &_
"14,11, 2,12, 4, 7,13, 1, 5, 0,15,10, 3, 9, 8, 6," &_
" 4, 2, 1,11,10,13, 7, 8,15, 9,12, 5, 6, 3, 0,14," &_
"11, 8,12, 7, 1,14, 2,13, 6,15, 0, 9,10, 4, 5, 3,"
SBox(5) = "12, 1,10,15, 9, 2, 6, 8, 0,13, 3, 4,14, 7, 5,11," &_
...全文
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of123 2016-07-01
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我用的是 VC 写成的标准 DLL，在其他语言平台上也可以调用。
DES 原理并不复杂，自己看懂了改写也不是很困难。更何况 VB 代码简直就是英语口语。
舉杯邀明月 2016-06-30
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就是结果对不上，又不会VB，想用上面这个VB的试下[/quote]
什么“结果对不上”？ 
用它的加密算法加密后的数据，然后解密不能还原吗？
你说的这个，我看了原贴，别人说这个是 ASP的，并不“等于VB”。
既然你用的是 Delphi，那你也得照着把它“翻译成D语言”的来试啊。
用它的加密算法加密后的数据，然后解密不能还原吗？
你说的这个，我看了原贴，别人说这个是 ASP的，并不“等于VB”。
既然你用的是 Delphi，那你也得照着把它“翻译成D语言”的来试啊。
赵4老师 2016-06-30
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仅供参考：
#pragma comment(lib, "crypt32.lib")
#pragma comment(lib, "advapi32.lib")
#define _WIN32_WINNT 0x0400
#include <stdio.h>
#include <windows.h>
#include <wincrypt.h>
#define KEYLENGTH 0x00800000
void HandleError(char *s);
//--------------------------------------------------------------------
// These additional #define statements are required.
#define ENCRYPT_ALGORITHM CALG_RC4
#define ENCRYPT_BLOCK_SIZE 8
// Declare the function EncryptFile. The function definition
// follows main.
BOOL EncryptFile(
PCHAR szSource,
PCHAR szDestination,
PCHAR szPassword);
//--------------------------------------------------------------------
// Begin main.
void main(void) {
CHAR szSource[100];
CHAR szDestination[100];
CHAR szPassword[100];
printf("Encrypt a file. \n\n");
printf("Enter the name of the file to be encrypted: ");
scanf("%s",szSource);
printf("Enter the name of the output file: ");
scanf("%s",szDestination);
printf("Enter the password:");
scanf("%s",szPassword);
//--------------------------------------------------------------------
// Call EncryptFile to do the actual encryption.
if(EncryptFile(szSource, szDestination, szPassword)) {
printf("Encryption of the file %s was a success. \n", szSource);
printf("The encrypted data is in file %s.\n",szDestination);
} else {
HandleError("Error encrypting file!");
}
} // End of main
//--------------------------------------------------------------------
// Code for the function EncryptFile called by main.
static BOOL EncryptFile(
PCHAR szSource,
PCHAR szDestination,
PCHAR szPassword)
//--------------------------------------------------------------------
// Parameters passed are:
// szSource, the name of the input, a plaintext file.
// szDestination, the name of the output, an encrypted file to be
// created.
// szPassword, the password.
{
//--------------------------------------------------------------------
// Declare and initialize local variables.
FILE *hSource;
FILE *hDestination;
HCRYPTPROV hCryptProv;
HCRYPTKEY hKey;
HCRYPTHASH hHash;
PBYTE pbBuffer;
DWORD dwBlockLen;
DWORD dwBufferLen;
DWORD dwCount;
//--------------------------------------------------------------------
// Open source file.
if(hSource = fopen(szSource,"rb")) {
printf("The source plaintext file, %s, is open. \n", szSource);
} else {
HandleError("Error opening source plaintext file!");
}
//--------------------------------------------------------------------
// Open destination file.
if(hDestination = fopen(szDestination,"wb")) {
printf("Destination file %s is open. \n", szDestination);
} else {
HandleError("Error opening destination ciphertext file!");
}
//以下获得一个CSP句柄
if(CryptAcquireContext(
&hCryptProv,
NULL, //NULL表示使用默认密钥容器，默认密钥容器名
//为用户登陆名
NULL,
PROV_RSA_FULL,
0)) {
printf("A cryptographic provider has been acquired. \n");
} else {
if(CryptAcquireContext(
&hCryptProv,
NULL,
NULL,
PROV_RSA_FULL,
CRYPT_NEWKEYSET))//创建密钥容器
{
//创建密钥容器成功，并得到CSP句柄
printf("A new key container has been created.\n");
} else {
HandleError("Could not create a new key container.\n");
}
}
//--------------------------------------------------------------------
// 创建一个会话密钥（session key）
// 会话密钥也叫对称密钥，用于对称加密算法。
// （注: 一个Session是指从调用函数CryptAcquireContext到调用函数
// CryptReleaseContext 期间的阶段。会话密钥只能存在于一个会话过程）
//--------------------------------------------------------------------
// Create a hash object.
if(CryptCreateHash(
hCryptProv,
CALG_MD5,
0,
0,
&hHash)) {
printf("A hash object has been created. \n");
} else {
HandleError("Error during CryptCreateHash!\n");
}
//--------------------------------------------------------------------
// 用输入的密码产生一个散列
if(CryptHashData(
hHash,
(BYTE *)szPassword,
strlen(szPassword),
0)) {
printf("The password has been added to the hash. \n");
} else {
HandleError("Error during CryptHashData. \n");
}
//--------------------------------------------------------------------
// 通过散列生成会话密钥
if(CryptDeriveKey(
hCryptProv,
ENCRYPT_ALGORITHM,
hHash,
KEYLENGTH,
&hKey)) {
printf("An encryption key is derived from the password hash. \n");
} else {
HandleError("Error during CryptDeriveKey!\n");
}
//--------------------------------------------------------------------
// Destroy the hash object.
CryptDestroyHash(hHash);
hHash = NULL;
//--------------------------------------------------------------------
// The session key is now ready.
//--------------------------------------------------------------------
// 因为加密算法是按ENCRYPT_BLOCK_SIZE 大小的块加密的，所以被加密的
// 数据长度必须是ENCRYPT_BLOCK_SIZE 的整数倍。下面计算一次加密的
// 数据长度。
dwBlockLen = 1000 - 1000 % ENCRYPT_BLOCK_SIZE;
//--------------------------------------------------------------------
// Determine the block size. If a block cipher is used,
// it must have room for an extra block.
if(ENCRYPT_BLOCK_SIZE > 1)
dwBufferLen = dwBlockLen + ENCRYPT_BLOCK_SIZE;
else
dwBufferLen = dwBlockLen;
//--------------------------------------------------------------------
// Allocate memory.
if(pbBuffer = (BYTE *)malloc(dwBufferLen)) {
printf("Memory has been allocated for the buffer. \n");
} else {
HandleError("Out of memory. \n");
}
//--------------------------------------------------------------------
// In a do loop, encrypt the source file and write to the destination file.
do {
//--------------------------------------------------------------------
// Read up to dwBlockLen bytes from the source file.
dwCount = fread(pbBuffer, 1, dwBlockLen, hSource);
if(ferror(hSource)) {
HandleError("Error reading plaintext!\n");
}
//--------------------------------------------------------------------
// 加密数据
if(!CryptEncrypt(
hKey, //密钥
0, //如果数据同时进行散列和加密，这里传入一个
//散列对象
feof(hSource), //如果是最后一个被加密的块，输入TRUE.如果不是输.
//入FALSE这里通过判断是否到文件尾来决定是否为
//最后一块。
0, //保留
pbBuffer, //输入被加密数据，输出加密后的数据
&dwCount, //输入被加密数据实际长度，输出加密后数据长度
dwBufferLen)) //pbBuffer的大小。
{
HandleError("Error during CryptEncrypt. \n");
}
//--------------------------------------------------------------------
// Write data to the destination file.
fwrite(pbBuffer, 1, dwCount, hDestination);
if(ferror(hDestination)) {
HandleError("Error writing ciphertext.");
}
} while(!feof(hSource));
//--------------------------------------------------------------------
// End the do loop when the last block of the source file has been
// read, encrypted, and written to the destination file.
//--------------------------------------------------------------------
// Close files.
if(hSource)
fclose(hSource);
if(hDestination)
fclose(hDestination);
//--------------------------------------------------------------------
// Free memory.
if(pbBuffer)
free(pbBuffer);
//--------------------------------------------------------------------
// Destroy session key.
if(hKey)
CryptDestroyKey(hKey);
//--------------------------------------------------------------------
// Destroy hash object.
if(hHash)
CryptDestroyHash(hHash);
//--------------------------------------------------------------------
// Release provider handle.
if(hCryptProv)
CryptReleaseContext(hCryptProv, 0);
return(TRUE);
} // End of Encryptfile
//--------------------------------------------------------------------
// This example uses the function HandleError, a simple error
// handling function, to print an error message to the standard error
// (stderr) file and exit the program.
// For most applications, replace this function with one
// that does more extensive error reporting.
void HandleError(char *s) {
fprintf(stderr,"An error occurred in running the program. \n");
fprintf(stderr,"%s\n",s);
fprintf(stderr, "Error number %x.\n", GetLastError());
fprintf(stderr, "Program terminating. \n");
exit(1);
} // End of HandleError
舉杯邀明月 2016-06-30
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看看这两个，有没有你要的东西？
Delphi 字符串加密算法 (基于DES)
MD5与DES加密算法【Delphi版】
Delphi 字符串加密算法 (基于DES)
MD5与DES加密算法【Delphi版】
wlj351 2016-06-30
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是要把上面版本转成D ，因为用其他D的结果都对不上
wlj351 2016-06-30
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就是结果对不上，又不会VB，想用上面这个VB的试下
of123 2016-06-30
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找一份 FIPS 46-2，读懂后自己些代码，工作量也不是很大。
