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Remove CCryptoKeyStore and move all of it's functionality into CWallet

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Instead of having a separate CCryptoKeyStore that handles the encryption
stuff, just roll it all into CWallet.
This commit is contained in:
Andrew Chow
2019-06-06 23:58:21 +02:00
parent 37a79a4fcc
commit 8f5b81e6ed
5 changed files with 247 additions and 256 deletions
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192
src/wallet/crypter.cpp
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@@ -107,8 +107,7 @@ bool CCrypter::Decrypt(const std::vector<unsigned char>& vchCiphertext, CKeyingM
return true;
}
static bool EncryptSecret(const CKeyingMaterial& vMasterKey, const CKeyingMaterial &vchPlaintext, const uint256& nIV, std::vector<unsigned char> &vchCiphertext)
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_IV_SIZE);
@@ -118,7 +117,7 @@ static bool EncryptSecret(const CKeyingMaterial& vMasterKey, const CKeyingMateri
return cKeyCrypter.Encrypt(*((const CKeyingMaterial*)&vchPlaintext), vchCiphertext);
}
static bool DecryptSecret(const CKeyingMaterial& vMasterKey, const std::vector<unsigned char>& vchCiphertext, const uint256& nIV, CKeyingMaterial& vchPlaintext)
bool DecryptSecret(const CKeyingMaterial& vMasterKey, const std::vector<unsigned char>& vchCiphertext, const uint256& nIV, CKeyingMaterial& vchPlaintext)
{
CCrypter cKeyCrypter;
std::vector<unsigned char> chIV(WALLET_CRYPTO_IV_SIZE);
@@ -128,7 +127,7 @@ static bool DecryptSecret(const CKeyingMaterial& vMasterKey, const std::vector<u
return cKeyCrypter.Decrypt(vchCiphertext, *((CKeyingMaterial*)&vchPlaintext));
}
static bool DecryptKey(const CKeyingMaterial& vMasterKey, const std::vector<unsigned char>& vchCryptedSecret, const CPubKey& vchPubKey, CKey& key)
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))
@@ -140,188 +139,3 @@ static bool DecryptKey(const CKeyingMaterial& vMasterKey, const std::vector<unsi
key.Set(vchSecret.begin(), vchSecret.end(), vchPubKey.IsCompressed());
return key.VerifyPubKey(vchPubKey);
}
bool CCryptoKeyStore::SetCrypted()
{
LOCK(cs_KeyStore);
if (fUseCrypto)
return true;
if (!mapKeys.empty())
return false;
fUseCrypto = true;
return true;
}
bool CCryptoKeyStore::IsLocked() const
{
if (!IsCrypted()) {
return false;
}
LOCK(cs_KeyStore);
return vMasterKey.empty();
}
bool CCryptoKeyStore::Lock()
{
if (!SetCrypted())
return false;
{
LOCK(cs_KeyStore);
vMasterKey.clear();
}
NotifyStatusChanged(this);
return true;
}
bool CCryptoKeyStore::Unlock(const CKeyingMaterial& vMasterKeyIn, bool accept_no_keys)
{
{
LOCK(cs_KeyStore);
if (!SetCrypted())
return false;
bool keyPass = mapCryptedKeys.empty(); // Always pass when there are no encrypted keys
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;
CKey key;
if (!DecryptKey(vMasterKeyIn, vchCryptedSecret, vchPubKey, key))
{
keyFail = true;
break;
}
keyPass = true;
if (fDecryptionThoroughlyChecked)
break;
}
if (keyPass && keyFail)
{
LogPrintf("The wallet is probably corrupted: Some keys decrypt but not all.\n");
throw std::runtime_error("Error unlocking wallet: some keys decrypt but not all. Your wallet file may be corrupt.");
}
if (keyFail || (!keyPass && !accept_no_keys))
return false;
vMasterKey = vMasterKeyIn;
fDecryptionThoroughlyChecked = true;
}
NotifyStatusChanged(this);
return true;
}
bool CCryptoKeyStore::AddKeyPubKey(const CKey& key, const CPubKey &pubkey)
{
LOCK(cs_KeyStore);
if (!IsCrypted()) {
return FillableSigningProvider::AddKeyPubKey(key, pubkey);
}
if (IsLocked()) {
return false;
}
std::vector<unsigned char> vchCryptedSecret;
CKeyingMaterial vchSecret(key.begin(), key.end());
if (!EncryptSecret(vMasterKey, vchSecret, pubkey.GetHash(), vchCryptedSecret)) {
return false;
}
if (!AddCryptedKey(pubkey, vchCryptedSecret)) {
return false;
}
return true;
}
bool CCryptoKeyStore::AddCryptedKey(const CPubKey &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret)
{
LOCK(cs_KeyStore);
if (!SetCrypted()) {
return false;
}
mapCryptedKeys[vchPubKey.GetID()] = make_pair(vchPubKey, vchCryptedSecret);
ImplicitlyLearnRelatedKeyScripts(vchPubKey);
return true;
}
bool CCryptoKeyStore::HaveKey(const CKeyID &address) const
{
LOCK(cs_KeyStore);
if (!IsCrypted()) {
return FillableSigningProvider::HaveKey(address);
}
return mapCryptedKeys.count(address) > 0;
}
bool CCryptoKeyStore::GetKey(const CKeyID &address, CKey& keyOut) const
{
LOCK(cs_KeyStore);
if (!IsCrypted()) {
return FillableSigningProvider::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;
return DecryptKey(vMasterKey, vchCryptedSecret, vchPubKey, keyOut);
}
return false;
}
bool CCryptoKeyStore::GetPubKey(const CKeyID &address, CPubKey& vchPubKeyOut) const
{
LOCK(cs_KeyStore);
if (!IsCrypted())
return FillableSigningProvider::GetPubKey(address, vchPubKeyOut);
CryptedKeyMap::const_iterator mi = mapCryptedKeys.find(address);
if (mi != mapCryptedKeys.end())
{
vchPubKeyOut = (*mi).second.first;
return true;
}
// Check for watch-only pubkeys
return FillableSigningProvider::GetPubKey(address, vchPubKeyOut);
}
std::set<CKeyID> CCryptoKeyStore::GetKeys() const
{
LOCK(cs_KeyStore);
if (!IsCrypted()) {
return FillableSigningProvider::GetKeys();
}
std::set<CKeyID> set_address;
for (const auto& mi : mapCryptedKeys) {
set_address.insert(mi.first);
}
return set_address;
}
bool CCryptoKeyStore::EncryptKeys(CKeyingMaterial& vMasterKeyIn)
{
LOCK(cs_KeyStore);
if (!mapCryptedKeys.empty() || IsCrypted())
return false;
fUseCrypto = true;
for (const KeyMap::value_type& mKey : mapKeys)
{
const CKey &key = mKey.second;
CPubKey vchPubKey = key.GetPubKey();
CKeyingMaterial vchSecret(key.begin(), key.end());
std::vector<unsigned char> vchCryptedSecret;
if (!EncryptSecret(vMasterKeyIn, vchSecret, vchPubKey.GetHash(), vchCryptedSecret))
return false;
if (!AddCryptedKey(vchPubKey, vchCryptedSecret))
return false;
}
mapKeys.clear();
return true;
}