根据机器生成特征码，然后按照自己的算法，结合特征码生成出验证码，特征码和验证码应该是一一对应。

根据机器生成特征码，然后按照自己的算法，结合特征码生成出验证码，特征码和验证码应该是一一对应。

原型：
int WINAPI icePub_machineGetInfo(int typeFlag,char *strInfo)
输入：flag 模式标志，1-5
输出：strMachineCode 机器码串

CString str1;
char buff[1024];

typedef int (WINAPI ICEPUB_MACHINEGETINFO)(int typeFlag,char *strInfo);
ICEPUB_MACHINEGETINFO *icePub_machineGetInfo = 0;
HINSTANCE hDLLDrv = LoadLibrary("icePubDll.dll");
if(hDLLDrv)
{
icePub_machineGetInfo = (ICEPUB_MACHINEGETINFO *)GetProcAddress(hDLLDrv, "icePub_machineGetInfo");
}

icePub_machineGetInfo(1,buff);
str1=buff;//mac
icePub_machineGetInfo(2,buff);
str1=str1+buff;//cpu
icePub_machineGetInfo(3,buff);
str1=str1+buff;//hard
icePub_machineGetInfo(4,buff);
str1=str1+buff;//memery
icePub_machineGetInfo(5,buff);
str1=str1+buff;//biosdate
AfxMessageBox(str1);

原型：
int WINAPI icePub_getMD5FromString(char *strData,char *strResult)
输入：strData 待处理的文本串
输出：strResult MD5结果串，32字节
返回码:

char buff[1024];
char buff2[1024];

strcpy(buff2,"Walk At Familiar Alley, Pursue Concordand's Footfall, Between Front And Back, What Course To Follow?");

typedef int (WINAPI ICEPUB_GETMD5FROMSTRING)(char *strData,char *strResult);
ICEPUB_GETMD5FROMSTRING *icePub_getMD5FromString = 0;
HINSTANCE hDLLDrv = LoadLibrary("icePubDll.dll");
if(hDLLDrv)
{
icePub_getMD5FromString=(ICEPUB_GETMD5FROMSTRING *)GetProcAddress(hDLLDrv,"icePub_getMD5FromString");
}
if(icePub_getMD5FromString)
icePub_getMD5FromString(buff2,buff);
if(hDLLDrv)
FreeLibrary(hDLLDrv);

AfxMessageBox(buff);

原型：
int WINAPI icePub_encryptText2(char *strInput, char *strOutputHexstring, char *strKey)
输入：strInput 待加密文本数据串
strKey 单des密钥，8字节长度
输出：strOutputHexstring 加密后16进制串
返回码:

char buff[1024],buff2[1024],key[1024];
int len=0;

strcpy(buff,"Take apart Letter Long, Listen Hidden Never-ending bitterness, Between Sky And Terra, Beartthrob Popple.");
strcpy(key,"11223344");

typedef int (WINAPI ICEPUB_ENCRYPTTEXT2)(char *strInput, char *strOutputHexstring, char *strKey);
ICEPUB_ENCRYPTTEXT2 *icePub_decryptText2 = 0;
HINSTANCE hDLLDrv = LoadLibrary("icePubDll.dll");
if(hDLLDrv)
{
icePub_decryptText2=(ICEPUB_ENCRYPTTEXT2 *)GetProcAddress(hDLLDrv,"icePub_encryptText2");
}
if(icePub_decryptText2)
len=icePub_decryptText2(buff,buff2,key);
if(hDLLDrv)
FreeLibrary(hDLLDrv);
AfxMessageBox(buff2);

几个函数可参考参考资料：icePubDll.dll百度之即可