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); }
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); }
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; }
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); }