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分享c++ 关于sha1算法
找了很多的c++实现sha1的算法，为什么算出来的和php里面标准的的sha1()函数得到的结果不一样呢？
哪位大牛给个解释啊
哪位大牛给个解释啊
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unituniverse2 2013-11-13
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至少其中之一必有问题。。结论和具体算法无关的。有关的话就错了
ken_scott 2013-11-13
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把二者的结果给出来，让大家看看啊
赵4老师 2013-11-13
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#pragma comment(lib, "crypt32.lib")
#pragma comment(lib, "advapi32.lib")
#define _WIN32_WINNT 0x0400
#include <stdio.h>
#include <windows.h>
#include <wincrypt.h>
#define MY_ENCODING_TYPE (PKCS_7_ASN_ENCODING | X509_ASN_ENCODING)
#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 source 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
赵4老师 2013-11-13
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#pragma comment(lib, "crypt32.lib")
#pragma comment(lib, "advapi32.lib")
#define _WIN32_WINNT 0x0400
#include <windows.h>
#include <wincrypt.h>
#include <tchar.h>
#include <stdio.h>
#include <stdlib.h>
void HandleError(TCHAR* s);
void Wait(TCHAR* s);
int _tmain(int argc, _TCHAR* argv[]) {
HCRYPTPROV hProv;
LPTSTR pszName;
DWORD dwType;
DWORD cbName;
DWORD dwIndex = 0;
BYTE* ptr;
ALG_ID aiAlgid;
DWORD dwBits;
DWORD dwNameLen;
CHAR szName[100];
BYTE pbData[1024];
DWORD cbData = 1024;
DWORD dwIncrement = sizeof(DWORD);
DWORD dwFlags = CRYPT_FIRST;
DWORD dwParam = PP_CLIENT_HWND;
CHAR* pszAlgType = NULL;
BOOL fMore = TRUE;
printf("列举可用的CSP提供者类型\n");
printf("CSP提供者类型 CSP提供者类型名称\n");
_tprintf(TEXT("_____________ __________________________________________________\n"));
//循环调用CryptEnumProviderType函数枚举当前计算机支持的CSP类型
while(CryptEnumProviderTypes(dwIndex, NULL, 0,
&dwType,
NULL, //第一次调用设置为NULL
&cbName)) //将要输出的pszName的长度
{
//为pszName分配内存
if(!(pszName = (LPTSTR)LocalAlloc(LMEM_ZEROINIT, cbName))) {
HandleError(TEXT("调用LocalAlloc分配内存出错\n"));
}
//获取CSP提供者类型名
if(CryptEnumProviderTypes(dwIndex++, NULL, 0,
&dwType, pszName, &cbName)) {
_tprintf(TEXT("%13d %s\n"), dwType, pszName);
} else {
HandleError(TEXT("调用CryptEnumProviderTypes出错\n"));
}
LocalFree(pszName);
}
//连接CSP，创建CSP句柄
if(!CryptAcquireContext(&hProv, NULL, NULL,
PROV_RSA_FULL, NULL)) {
HandleError(TEXT("调用CryptAcquireContext函数出错\n"));
}
//获得CSP参数，枚举支持的密码算法
printf("\n枚举支持的密码算法\n");
printf("算法ID 位数 类型 长度 算法名称\n");
printf("_________ ____ ____ ____ ____________________\n");
while(fMore) {
if(CryptGetProvParam(hProv, PP_ENUMALGS, pbData,
&cbData, dwFlags)) {
//从pbData缓冲区中解析出算法信息
dwFlags = 0;
ptr = pbData;
aiAlgid = *(ALG_ID*)ptr;
ptr += sizeof(ALG_ID);
dwBits = *(DWORD*)ptr;
ptr += dwIncrement;
dwNameLen = *(DWORD*)ptr;
ptr += dwIncrement;
strncpy(szName, (char*)ptr, __min(dwNameLen,99));szName[__min(dwNameLen,99)]=0;
//获取算法类型
switch(GET_ALG_CLASS(aiAlgid)) {
case ALG_CLASS_DATA_ENCRYPT:
pszAlgType = "加密";
break;
case ALG_CLASS_HASH:
pszAlgType = "哈希";
break;
case ALG_CLASS_KEY_EXCHANGE:
pszAlgType = "交换";
break;
case ALG_CLASS_SIGNATURE:
pszAlgType = "签名";
break;
default:
pszAlgType = "未知";
break;
}
//打印算法信息
printf("%8.8xh %4d %4s %4d %s\n",
aiAlgid, dwBits, pszAlgType, dwNameLen, szName);
} else {
fMore = FALSE;
}
}
Wait(TEXT("\n按Enter继续"));
if(!(CryptReleaseContext(hProv, 0))) {
HandleError(TEXT("调用CryptReleaseContext时出错\n"));
}
if(GetLastError() == ERROR_NO_MORE_ITEMS) {
_tprintf(TEXT("\n程序成功执行完毕\n"));
} else {
HandleError(TEXT("读取算法信息时出错"));
}
return 0;
}
void HandleError(TCHAR* s) {
_tprintf(TEXT("程序运行出现错误.\n"));
_tprintf(TEXT("%s\n"),s);
_tprintf(TEXT("错误代码%x\n."), GetLastError());
_tprintf(TEXT("程序终止.\n"));
exit(1);
}
void Wait(TCHAR* s) {
char x;
_tprintf(s);
x = getchar();
}
//列举可用的CSP提供者类型
//CSP提供者类型 CSP提供者类型名称
//_____________ __________________________________________________
// 1 RSA Full (Signature and Key Exchange)
// 3 DSS Signature
// 12 RSA SChannel
// 13 DSS Signature with Diffie-Hellman Key Exchange
// 18 Diffie-Hellman SChannel
// 24 RSA Full and AES
//
//枚举支持的密码算法
//算法ID 位数 类型 长度 算法名称
//_________ ____ ____ ____ ____________________
//00006602h 128 加密 4 RC2
//00006801h 128 加密 4 RC4
//00006601h 56 加密 4 DES
//00006609h 112 加密 13 3DES TWO KEY
//00006603h 168 加密 5 3DES
//00008004h 160 哈希 6 SHA-1
//00008001h 128 哈希 4 MD2
//00008002h 128 哈希 4 MD4
//00008003h 128 哈希 4 MD5
//00008008h 288 哈希 12 SSL3 SHAMD5
//00008005h 0 哈希 4 MAC
//00002400h 1024 签名 9 RSA_SIGN
//0000a400h 1024 交换 9 RSA_KEYX
//00008009h 0 哈希 5 HMAC
//
//按Enter继续
//
//程序成功执行完毕
//
Adol1111 2013-11-12
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例子呢？代码呢？没代码谁知道为什么？应该是实现不一样，生成的sha1有点小区别吧。
turing-complete 2013-11-12
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实现采用了不同的算法呗
dyw 2013-11-12
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给个不一样的例子
