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-rw-r--r--src/crypter.cpp157
1 files changed, 156 insertions, 1 deletions
diff --git a/src/crypter.cpp b/src/crypter.cpp
index 10a34ae24a..4c43e3a798 100644
--- a/src/crypter.cpp
+++ b/src/crypter.cpp
@@ -4,9 +4,11 @@
#include "crypter.h"
+#include "script.h"
+
#include <string>
#include <vector>
-
+#include <boost/foreach.hpp>
#include <openssl/aes.h>
#include <openssl/evp.h>
@@ -117,3 +119,156 @@ bool DecryptSecret(const CKeyingMaterial& vMasterKey, const std::vector<unsigned
return false;
return cKeyCrypter.Decrypt(vchCiphertext, *((CKeyingMaterial*)&vchPlaintext));
}
+
+bool CCryptoKeyStore::SetCrypted()
+{
+ LOCK(cs_KeyStore);
+ if (fUseCrypto)
+ return true;
+ if (!mapKeys.empty())
+ return false;
+ fUseCrypto = true;
+ return true;
+}
+
+bool CCryptoKeyStore::Lock()
+{
+ if (!SetCrypted())
+ return false;
+
+ {
+ LOCK(cs_KeyStore);
+ vMasterKey.clear();
+ }
+
+ NotifyStatusChanged(this);
+ return true;
+}
+
+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;
+}
+
+bool CCryptoKeyStore::AddKeyPubKey(const CKey& key, const CPubKey &pubkey)
+{
+ {
+ LOCK(cs_KeyStore);
+ if (!IsCrypted())
+ return CBasicKeyStore::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);
+ }
+ return true;
+}
+
+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::GetPubKey(const CKeyID &address, CPubKey& vchPubKeyOut) const
+{
+ {
+ LOCK(cs_KeyStore);
+ if (!IsCrypted())
+ return CKeyStore::GetPubKey(address, vchPubKeyOut);
+
+ CryptedKeyMap::const_iterator mi = mapCryptedKeys.find(address);
+ if (mi != mapCryptedKeys.end())
+ {
+ vchPubKeyOut = (*mi).second.first;
+ return true;
+ }
+ }
+ return false;
+}
+
+bool CCryptoKeyStore::EncryptKeys(CKeyingMaterial& vMasterKeyIn)
+{
+ {
+ LOCK(cs_KeyStore);
+ if (!mapCryptedKeys.empty() || IsCrypted())
+ return false;
+
+ fUseCrypto = true;
+ BOOST_FOREACH(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;
+}