chromium/third_party/unrar/src/crypt5.cpp

static void hmac_sha256(const byte *Key,size_t KeyLength,const byte *Data,
                        size_t DataLength,byte *ResDigest,
                        sha256_context *ICtxOpt,bool *SetIOpt,
                        sha256_context *RCtxOpt,bool *SetROpt)
{ … }


// PBKDF2 for 32 byte key length. We generate the key for specified number
// of iteration count also as two supplementary values (key for checksums
// and password verification) for iterations+16 and iterations+32.
void pbkdf2(const byte *Pwd, size_t PwdLength, 
            const byte *Salt, size_t SaltLength,
            byte *Key, byte *V1, byte *V2, uint Count)
{ … }


bool CryptData::SetKey50(bool Encrypt,SecPassword *Password,const wchar *PwdW,
     const byte *Salt,const byte *InitV,uint Lg2Cnt,byte *HashKey,
     byte *PswCheck)
{ … }


void ConvertHashToMAC(HashValue *Value,byte *Key)
{ … }


#if 0
static void TestPBKDF2();
struct TestKDF {TestKDF() {TestPBKDF2();exit(0);}} GlobalTestKDF;

void TestPBKDF2() // Test PBKDF2 HMAC-SHA256
{
  byte Key[32],V1[32],V2[32];

  pbkdf2((byte *)"password", 8, (byte *)"salt", 4, Key, V1, V2, 1);
  byte Res1[32]={0x12, 0x0f, 0xb6, 0xcf, 0xfc, 0xf8, 0xb3, 0x2c, 0x43, 0xe7, 0x22, 0x52, 0x56, 0xc4, 0xf8, 0x37, 0xa8, 0x65, 0x48, 0xc9, 0x2c, 0xcc, 0x35, 0x48, 0x08, 0x05, 0x98, 0x7c, 0xb7, 0x0b, 0xe1, 0x7b };
  mprintf(L"\nPBKDF2 test1: %s", memcmp(Key,Res1,32)==0 ? L"OK":L"Failed");

  pbkdf2((byte *)"password", 8, (byte *)"salt", 4, Key, V1, V2, 4096);
  byte Res2[32]={0xc5, 0xe4, 0x78, 0xd5, 0x92, 0x88, 0xc8, 0x41, 0xaa, 0x53, 0x0d, 0xb6, 0x84, 0x5c, 0x4c, 0x8d, 0x96, 0x28, 0x93, 0xa0, 0x01, 0xce, 0x4e, 0x11, 0xa4, 0x96, 0x38, 0x73, 0xaa, 0x98, 0x13, 0x4a };
  mprintf(L"\nPBKDF2 test2: %s", memcmp(Key,Res2,32)==0 ? L"OK":L"Failed");

  pbkdf2((byte *)"just some long string pretending to be a password", 49, (byte *)"salt, salt, salt, a lot of salt", 31, Key, V1, V2, 65536);
  byte Res3[32]={0x08, 0x0f, 0xa3, 0x1d, 0x42, 0x2d, 0xb0, 0x47, 0x83, 0x9b, 0xce, 0x3a, 0x3b, 0xce, 0x49, 0x51, 0xe2, 0x62, 0xb9, 0xff, 0x76, 0x2f, 0x57, 0xe9, 0xc4, 0x71, 0x96, 0xce, 0x4b, 0x6b, 0x6e, 0xbf};
  mprintf(L"\nPBKDF2 test3: %s", memcmp(Key,Res3,32)==0 ? L"OK":L"Failed");
}
#endif