Ejemplo n.º 1
0
bool EncryptSecret(const CKeyingMaterial& vMasterKey, const CKeyingMaterial &vchPlaintext, const uint256& nIV, std::vector<unsigned char> &vchCiphertext)
{
    CCrypter cKeyCrypter;
    std::vector<unsigned char> chIV(WALLET_CRYPTO_KEY_SIZE);
    memcpy(&chIV[0], &nIV, WALLET_CRYPTO_KEY_SIZE);
    if(!cKeyCrypter.SetKey(vMasterKey, chIV))
        return false;
    return cKeyCrypter.Encrypt(*((const CKeyingMaterial*)&vchPlaintext), vchCiphertext);
}
Ejemplo n.º 2
0
static void TestEncryptSingle(const CCrypter& crypt, const CKeyingMaterial& vchPlaintext,
                       const std::vector<unsigned char>& vchCiphertextCorrect = std::vector<unsigned char>())
{
    std::vector<unsigned char> vchCiphertext;
    crypt.Encrypt(vchPlaintext, vchCiphertext);

    if (!vchCiphertextCorrect.empty())
        BOOST_CHECK(vchCiphertext == vchCiphertextCorrect);

    const std::vector<unsigned char> vchPlaintext2(vchPlaintext.begin(), vchPlaintext.end());
    TestDecrypt(crypt, vchCiphertext, vchPlaintext2);
}
Ejemplo n.º 3
0
bool CWallet::ChangeWalletPassphrase(const SecureString& strOldWalletPassphrase, const SecureString& strNewWalletPassphrase)
{
    bool fWasLocked = IsLocked();

    {
        LOCK(cs_wallet);
        Lock();

        CCrypter crypter;
        CKeyingMaterial vMasterKey;
        BOOST_FOREACH(MasterKeyMap::value_type& pMasterKey, mapMasterKeys)
        {
            if(!crypter.SetKeyFromPassphrase(strOldWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
                return false;
            if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, vMasterKey))
                return false;
            if (CCryptoKeyStore::Unlock(vMasterKey))
            {
                int64 nStartTime = GetTimeMillis();
                crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod);
                pMasterKey.second.nDeriveIterations = pMasterKey.second.nDeriveIterations * (100 / ((double)(GetTimeMillis() - nStartTime)));

                nStartTime = GetTimeMillis();
                crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod);
                pMasterKey.second.nDeriveIterations = (pMasterKey.second.nDeriveIterations + pMasterKey.second.nDeriveIterations * 100 / ((double)(GetTimeMillis() - nStartTime))) / 2;

                if (pMasterKey.second.nDeriveIterations < 25000)
                    pMasterKey.second.nDeriveIterations = 25000;

                printf("Wallet passphrase changed to an nDeriveIterations of %i\n", pMasterKey.second.nDeriveIterations);

                if (!crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
                    return false;
                if (!crypter.Encrypt(vMasterKey, pMasterKey.second.vchCryptedKey))
                    return false;
                CWalletDB(strWalletFile).WriteMasterKey(pMasterKey.first, pMasterKey.second);
                if (fWasLocked)
                    Lock();
                return true;
            }
        }
    }

    return false;
}
Ejemplo n.º 4
0
static void TestEncryptSingle(const CCrypter& crypt, const CKeyingMaterial& vchPlaintext,
                       const std::vector<unsigned char>& vchCiphertextCorrect = std::vector<unsigned char>())
{
    std::vector<unsigned char> vchCiphertext1;
    std::vector<unsigned char> vchCiphertext2;
    int result1 = crypt.Encrypt(vchPlaintext, vchCiphertext1);

    int result2 = OldEncrypt(vchPlaintext, vchCiphertext2, crypt.vchKey.data(), crypt.vchIV.data());
    BOOST_CHECK(result1 == result2);
    BOOST_CHECK(vchCiphertext1 == vchCiphertext2);

    if (!vchCiphertextCorrect.empty())
        BOOST_CHECK(vchCiphertext2 == vchCiphertextCorrect);

    const std::vector<unsigned char> vchPlaintext2(vchPlaintext.begin(), vchPlaintext.end());

    if(vchCiphertext1 == vchCiphertext2)
        TestDecrypt(crypt, vchCiphertext1, vchPlaintext2);
}