bool CCryptoKeyStore::Unlock(const CKeyingMaterial& vMasterKeyIn)
{
{
LOCK(cs_KeyStore);
if (!SetCrypted())
return false;
CryptedKeyMap::const_iterator mi = mapCryptedKeys.begin();
for (; mi != mapCryptedKeys.end(); ++mi)
{
const CPubKey &vchPubKey = (*mi).second.first;
const std::vector<unsigned char> &vchCryptedSecret = (*mi).second.second;
CKeyingMaterial vchSecret;
if(!DecryptSecret(vMasterKeyIn, vchCryptedSecret, vchPubKey.GetHash(), vchSecret))
return false;
if (vchSecret.size() != 32)
return false;
CKey key;
key.Set(vchSecret.begin(), vchSecret.end(), vchPubKey.IsCompressed());
if (key.GetPubKey() == vchPubKey)
break;
return false;
}
vMasterKey = vMasterKeyIn;
}
NotifyStatusChanged(this);
return true;
}
static bool DecryptKey(const CKeyingMaterial& vMasterKey, const std::vector<unsigned char>& vchCryptedSecret, const CPubKey& vchPubKey, CKey& key)
{
CKeyingMaterial vchSecret;
if(!DecryptSecret(vMasterKey, vchCryptedSecret, vchPubKey.GetHash(), vchSecret))
return false;
if (vchSecret.size() != 32)
return false;
key.Set(vchSecret.begin(), vchSecret.end(), vchPubKey.IsCompressed());
return key.VerifyPubKey(vchPubKey);
}
bool CAccountHD::Unlock(const CKeyingMaterial& vMasterKeyIn)
{
assert(sizeof(accountUUID) == WALLET_CRYPTO_IV_SIZE);
CKeyingMaterial vchAccountKeyPrivEncoded;
if (!DecryptSecret(vMasterKeyIn, accountKeyPrivEncrypted, std::vector<unsigned char>(accountUUID.begin(), accountUUID.end()), vchAccountKeyPrivEncoded))
return false;
accountKeyPriv.Decode(vchAccountKeyPrivEncoded.data());
CKeyingMaterial vchPrimaryChainKeyPrivEncoded;
if (!DecryptSecret(vMasterKeyIn, primaryChainKeyEncrypted, primaryChainKeyPub.pubkey.GetHash(), vchPrimaryChainKeyPrivEncoded))
return false;
primaryChainKeyPriv.Decode(vchPrimaryChainKeyPrivEncoded.data());
CKeyingMaterial vchChangeChainKeyPrivEncoded;
if (!DecryptSecret(vMasterKeyIn, changeChainKeyEncrypted, changeChainKeyPub.pubkey.GetHash(), vchChangeChainKeyPrivEncoded))
return false;
changeChainKeyPriv.Decode(vchChangeChainKeyPrivEncoded.data());
return true;
}
bool WalletUtilityDB::DecryptKey(const std::vector<unsigned char>& vchCryptedSecret, const CPubKey& vchPubKey, CKey& key)
{
CKeyingMaterial vchSecret;
if(!DecryptSecret(vchCryptedSecret, vchPubKey.GetHash(), vchSecret))
return false;
if (vchSecret.size() != 32)
return false;
key.Set(vchSecret.begin(), vchSecret.end(), vchPubKey.IsCompressed());
return true;
}
bool CCryptoKeyStore::Unlock(const CKeyingMaterial& vMasterKeyIn)
{
{
LOCK(cs_KeyStore);
if (!SetCrypted())
return false;
bool keyPass = false;
bool keyFail = false;
CryptedKeyMap::const_iterator mi = mapCryptedKeys.begin();
for (; mi != mapCryptedKeys.end(); ++mi)
{
const CPubKey &vchPubKey = (*mi).second.first;
const std::vector<unsigned char> &vchCryptedSecret = (*mi).second.second;
CKeyingMaterial vchSecret;
if(!DecryptSecret(vMasterKeyIn, vchCryptedSecret, vchPubKey.GetHash(), vchSecret))
{
keyFail = true;
break;
}
if (vchSecret.size() != 32)
{
keyFail = true;
break;
}
CKey key;
key.Set(vchSecret.begin(), vchSecret.end(), vchPubKey.IsCompressed());
if (key.GetPubKey() != vchPubKey)
{
keyFail = true;
break;
}
keyPass = true;
if (fDecryptionThoroughlyChecked)
break;
}
if (keyPass && keyFail)
{
LogPrintf("The wallet is probably corrupted: Some keys decrypt but not all.");
assert(false);
}
if (keyFail || !keyPass)
return false;
vMasterKey = vMasterKeyIn;
fDecryptionThoroughlyChecked = true;
}
NotifyStatusChanged(this);
return true;
}
/* The old namecoind encrypted not the 32-byte secret, but the full 279-byte
serialised keys. Thus, we need to handle both formats. This is done
by the following utility routine: It decrypts a secret and initialises
a CKey object from it. */
static bool DecryptKey(const CKeyingMaterial& vMasterKey, const std::vector<unsigned char>& vchCryptedSecret, const CPubKey& vchPubKey, CKey& key)
{
CKeyingMaterial vchSecret;
if(!DecryptSecret(vMasterKey, vchCryptedSecret, vchPubKey.GetHash(), vchSecret))
return false;
//LogPrintf("%s : decrypted %u-byte key\n", __func__, vchSecret.size());
if (vchSecret.size() == 32)
{
key.Set(vchSecret.begin(), vchSecret.end(), vchPubKey.IsCompressed());
return true;
}
return key.SetPrivKey(vchSecret, vchPubKey.IsCompressed());
}
static bool DecryptSpendingKey(const CKeyingMaterial& vMasterKey,
const std::vector<unsigned char>& vchCryptedSecret,
const libzcash::PaymentAddress& address,
libzcash::SpendingKey& sk)
{
CKeyingMaterial vchSecret;
if(!DecryptSecret(vMasterKey, vchCryptedSecret, address.GetHash(), vchSecret))
return false;
if (vchSecret.size() != libzcash::SerializedSpendingKeySize)
return false;
CSecureDataStream ss(vchSecret, SER_NETWORK, PROTOCOL_VERSION);
ss >> sk;
return sk.address() == address;
}
bool CCryptoKeyStore::GetKey(const CKeyID &address, CKey& keyOut) const
{
{
LOCK(cs_KeyStore);
if (!IsCrypted())
return CBasicKeyStore::GetKey(address, keyOut);
CryptedKeyMap::const_iterator mi = mapCryptedKeys.find(address);
if (mi != mapCryptedKeys.end())
{
const CPubKey &vchPubKey = (*mi).second.first;
const std::vector<unsigned char> &vchCryptedSecret = (*mi).second.second;
CKeyingMaterial vchSecret;
if (!DecryptSecret(vMasterKey, vchCryptedSecret, vchPubKey.GetHash(), vchSecret))
return false;
if (vchSecret.size() != 32)
return false;
keyOut.Set(vchSecret.begin(), vchSecret.end(), vchPubKey.IsCompressed());
return true;
}
}
return false;
}
bool CCryptoKeyStore::Unlock(const CKeyingMaterial& vMasterKeyIn)
{
if (fDebug)
LogPrintf("CCryptoKeyStore::Unlock()\n");
{
LOCK(cs_KeyStore);
if (!SetCrypted())
return false;
int nUnlocked = 0;
CryptedKeyMap::const_iterator mi = mapCryptedKeys.begin();
for (; mi != mapCryptedKeys.end(); ++mi)
{
const CPubKey &vchPubKey = (*mi).second.first;
const std::vector<unsigned char> &vchCryptedSecret = (*mi).second.second;
CSecret vchSecret;
if (vchCryptedSecret.size() < 1) // key was recieved from stealth/anon txn with wallet locked, will be expanded after this
{
if (fDebug)
LogPrintf("Skipping unexpanded key %s.\n", vchPubKey.GetHash().ToString().c_str());
continue;
};
if (!DecryptSecret(vMasterKeyIn, vchCryptedSecret, vchPubKey.GetHash(), vchSecret))
{
LogPrintf("DecryptSecret() failed.\n");
return false;
};
if (vchSecret.size() != 32)
return false;
CKey key;
key.Set(vchSecret.begin(), vchSecret.end(), vchPubKey.IsCompressed());
if (key.GetPubKey() != vchPubKey)
{
LogPrintf("Unlock failed: PubKey mismatch %s.\n", vchPubKey.GetHash().ToString().c_str());
return false;
};
nUnlocked++;
break;
};
if (nUnlocked < 1) // at least 1 key must pass the test
{
if (mapCryptedKeys.size() > 0)
{
LogPrintf("Unlock failed: No keys unlocked.\n");
return false;
};
};
vMasterKey = vMasterKeyIn;
}
NotifyStatusChanged(this);
return true;
}
