.text:0065C880                 mov     cl, [edi]    .text:0065C882                 mov     dl, cl    .text:0065C884                 xor     cl, 5    .text:0065C887                 xor     dl, 0AFh    .text:0065C88A                 shr     dl, 4    .text:0065C88D                 shl     cl, 4    .text:0065C890                 or      dl, cl    .text:0065C892                 mov     [edi], dl    .text:0065C894                 inc     edi    .text:0065C895                 dec     eax    .text:0065C896                 jnz     short loc_65C880    .text:0065C898                 jmp     loc_4DE7E6

void sqlpasswd(char * enp,char* dnp){    int i;    unsigned char a1;    unsigned char a2;    for(i=0;i<128;i++)    {        if(enp[i]==0)            break;        a1 = enp[i]^5;        a1 = a1 << 4;        a2 = enp[i]^0xaf;        a2 = a2 >> 4;        dnp[i]=a1|a2;    }    dnp[i]=0;    dnp[i+1]=0;    wprintf(L"passwd:%s\n",(const wchar_t *)dnp);}

2個字節的頭0x0100(固定）  4個字節的HASH加秘KEY20個字節的HASH120個字節的HASH2

fx:0x0100 1751857F DFDEC4FB618D8D18EBA5A27F615639F607CD46BE DFDEC4FB618D8D18EBA5A27F615639F607CD46BE    固定    補充KEY   HASH1                          HASH2口令是：123456

CryptAcquireContextW(&hProv,NULL,L("Microsoft Base Cryptographic Provider v1.0"),1,0xf0000000);    CryptCreateHash(hProv,0x8004,NULL,NULL,&hhash);    CryptCreateHash(hProv,0x8004,NULL,NULL,&hHash);005F9DFE：    CryptHashData(hhash,passwdbuf,0x12,NULL);passwdbuf是小寫的passwd緩沖區,然后附加一個KEY，如上例子就是對    {'1','2''3''4''5''6',0x17,0x51,0x85,0x7F}這樣的一個字串進行HASH加密    CryptHashData(hHash,PASSWDBUF,0x12,NULL);PASSWDBUF是大寫的passwd緩沖區,然后附加一個KEY 005F9E3E：    CryptGetHashParam(hhash,2,&passwdout,&outlen,0);取出passwdbuf是小寫的passwd的加密值    CryptGetHashParam(hHash,2,&PASSWDOUT,&OUTLEN,0);