X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=src%2Fkeystore.h;h=438752fa03f046b86794754c4ffce45202974712;hb=5f3f7465db4444e49dd4a896f88c090b40d0a303;hp=4095535493545aedbd86bc196d084e03870e3e3e;hpb=acd6501610817eee0bd1c8ea9c591f043affbaec;p=novacoin.git

diff --git a/src/keystore.h b/src/keystore.h
index 4095535..438752f 100644
--- a/src/keystore.h
+++ b/src/keystore.h
@@ -1,113 +1,377 @@
-// Copyright (c) 2009-2011 Satoshi Nakamoto & Bitcoin developers
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2012 The Bitcoin developers
 // Distributed under the MIT/X11 software license, see the accompanying
-// file license.txt or http://www.opensource.org/licenses/mit-license.php.
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
 #ifndef BITCOIN_KEYSTORE_H
 #define BITCOIN_KEYSTORE_H
 
-typedef std::vector<unsigned char, secure_allocator<unsigned char> > CMasterKey;
+#include "crypter.h"
+#include "sync.h"
+#include <boost/signals2/signal.hpp>
+#include <boost/variant.hpp>
 
+class CScript;
+
+class CNoDestination {
+public:
+    friend bool operator==(const CNoDestination &a, const CNoDestination &b) { return true; }
+    friend bool operator<(const CNoDestination &a, const CNoDestination &b) { return true; }
+};
+
+/** A txout script template with a specific destination. It is either:
+  * CNoDestination: no destination set
+  * CKeyID: TX_PUBKEYHASH destination
+  * CScriptID: TX_SCRIPTHASH destination
+  *
+  * A CTxDestination is the internal data type encoded in a CBitcoinAddress.
+  */
+typedef boost::variant<CNoDestination, CKeyID, CScriptID> CTxDestination;
+
+/** A virtual base class for key stores */
 class CKeyStore
 {
-public:
+protected:
     mutable CCriticalSection cs_KeyStore;
 
+public:
+    virtual ~CKeyStore() {}
+
+    // Add a key to the store.
     virtual bool AddKey(const CKey& key) =0;
-    virtual bool HaveKey(const std::vector<unsigned char> &vchPubKey) const =0;
-    virtual bool GetPrivKey(const std::vector<unsigned char> &vchPubKey, CPrivKey& keyOut) const =0;
-    virtual std::vector<unsigned char> GenerateNewKey();
+
+    // Add a malleable key to store.
+    virtual bool AddMalleableKey(const CMalleableKeyView &keyView, const CSecret &vchSecretH) =0;
+    virtual bool GetMalleableKey(const CMalleableKeyView &keyView, CMalleableKey &mKey) const =0;
+
+    // Check whether a key corresponding to a given address is present in the store.
+    virtual bool HaveKey(const CKeyID &address) const =0;
+    virtual bool GetKey(const CKeyID &address, CKey& keyOut) const =0;
+    virtual void GetKeys(std::set<CKeyID> &setAddress) const =0;
+    virtual bool GetPubKey(const CKeyID &address, CPubKey& vchPubKeyOut) const;
+
+    // Support for BIP 0013 : see https://en.bitcoin.it/wiki/BIP_0013
+    virtual bool AddCScript(const CScript& redeemScript) =0;
+    virtual bool HaveCScript(const CScriptID &hash) const =0;
+    virtual bool GetCScript(const CScriptID &hash, CScript& redeemScriptOut) const =0;
+
+    // Support for Watch-only addresses
+    virtual bool AddWatchOnly(const CScript &dest) =0;
+    virtual bool RemoveWatchOnly(const CScript &dest) =0;
+    virtual bool HaveWatchOnly(const CScript &dest) const =0;
+    virtual bool HaveWatchOnly() const =0;
+
+    virtual bool GetSecret(const CKeyID &address, CSecret& vchSecret, bool &fCompressed) const
+    {
+        CKey key;
+        if (!GetKey(address, key))
+            return false;
+        vchSecret = key.GetSecret(fCompressed);
+        return true;
+    }
+
+    virtual bool CheckOwnership(const CPubKey &pubKeyVariant, const CPubKey &R) const =0;
+    virtual bool CheckOwnership(const CPubKey &pubKeyVariant, const CPubKey &R, CMalleableKeyView &view) const =0;
+    virtual bool CreatePrivKey(const CPubKey &pubKeyVariant, const CPubKey &R, CKey &privKey) const =0;
+    virtual void ListMalleableViews(std::list<CMalleableKeyView> &malleableViewList) const =0;
 };
 
+typedef std::map<CKeyID, std::pair<CSecret, bool> > KeyMap;
+typedef std::map<CScriptID, CScript > ScriptMap;
+typedef std::set<CScript> WatchOnlySet;
+typedef std::map<CMalleableKeyView, CSecret> MalleableKeyMap;
+
+/** Basic key store, that keeps keys in an address->secret map */
 class CBasicKeyStore : public CKeyStore
 {
 protected:
-    std::map<std::vector<unsigned char>, CPrivKey> mapKeys;
+    KeyMap mapKeys;
+    MalleableKeyMap mapMalleableKeys;
+
+    ScriptMap mapScripts;
+    WatchOnlySet setWatchOnly;
 
 public:
     bool AddKey(const CKey& key);
-    bool HaveKey(const std::vector<unsigned char> &vchPubKey) const
+    bool AddMalleableKey(const CMalleableKeyView& keyView, const CSecret &vchSecretH);
+    bool GetMalleableKey(const CMalleableKeyView &keyView, CMalleableKey &mKey) const
+    {
+        {
+            LOCK(cs_KeyStore);
+            MalleableKeyMap::const_iterator mi = mapMalleableKeys.find(keyView);
+            if (mi != mapMalleableKeys.end())
+            {
+                mKey = mi->first.GetMalleableKey(mi->second);
+                return true;
+            }
+        }
+        return false;
+    }
+
+    bool HaveKey(const CKeyID &address) const
+    {
+        bool result;
+        {
+            LOCK(cs_KeyStore);
+            result = (mapKeys.count(address) > 0);
+        }
+        return result;
+    }
+    void GetKeys(std::set<CKeyID> &setAddress) const
+    {
+        setAddress.clear();
+        {
+            LOCK(cs_KeyStore);
+            KeyMap::const_iterator mi;
+            for (mi = mapKeys.begin(); mi != mapKeys.end(); ++mi) setAddress.insert((*mi).first);
+        }
+    }
+    bool GetKey(const CKeyID &address, CKey &keyOut) const
+    {
+        {
+            LOCK(cs_KeyStore);
+            KeyMap::const_iterator mi = mapKeys.find(address);
+            if (mi != mapKeys.end())
+            {
+                keyOut.Reset();
+                keyOut.SetSecret((*mi).second.first, (*mi).second.second);
+                return true;
+            }
+        }
+        return false;
+    }
+    virtual bool AddCScript(const CScript& redeemScript);
+    virtual bool HaveCScript(const CScriptID &hash) const;
+    virtual bool GetCScript(const CScriptID &hash, CScript& redeemScriptOut) const;
+
+    virtual bool AddWatchOnly(const CScript &dest);
+    virtual bool RemoveWatchOnly(const CScript &dest);
+    virtual bool HaveWatchOnly(const CScript &dest) const;
+    virtual bool HaveWatchOnly() const;
+
+    bool CheckOwnership(const CPubKey &pubKeyVariant, const CPubKey &R) const
     {
-        return (mapKeys.count(vchPubKey) > 0);
+        {
+            LOCK(cs_KeyStore);
+            for (MalleableKeyMap::const_iterator mi = mapMalleableKeys.begin(); mi != mapMalleableKeys.end(); mi++)
+            {
+                if (mi->first.CheckKeyVariant(R, pubKeyVariant))
+                    return true;
+            }
+        }
+        return false;
+    }
+
+    bool CheckOwnership(const CPubKey &pubKeyVariant, const CPubKey &R, CMalleableKeyView &view) const
+    {
+        {
+            LOCK(cs_KeyStore);
+            for (MalleableKeyMap::const_iterator mi = mapMalleableKeys.begin(); mi != mapMalleableKeys.end(); mi++)
+            {
+                if (mi->first.CheckKeyVariant(R, pubKeyVariant))
+                {
+                    view = mi->first;
+                    return true;
+                }
+            }
+        }
+        return false;
     }
-    bool GetPrivKey(const std::vector<unsigned char> &vchPubKey, CPrivKey& keyOut) const
+
+    bool CreatePrivKey(const CPubKey &pubKeyVariant, const CPubKey &R, CKey &privKey) const
     {
-        std::map<std::vector<unsigned char>, CPrivKey>::const_iterator mi = mapKeys.find(vchPubKey);
-        if (mi != mapKeys.end())
         {
-            keyOut = (*mi).second;
-            return true;
+            LOCK(cs_KeyStore);
+            for (MalleableKeyMap::const_iterator mi = mapMalleableKeys.begin(); mi != mapMalleableKeys.end(); mi++)
+            {
+                if (mi->first.CheckKeyVariant(R, pubKeyVariant))
+                {
+                    CMalleableKey mKey = mi->first.GetMalleableKey(mi->second);
+                    return mKey.CheckKeyVariant(R, pubKeyVariant, privKey);
+                }
+            }
         }
         return false;
     }
+
+    void ListMalleableViews(std::list<CMalleableKeyView> &malleableViewList) const
+    {
+        malleableViewList.clear();
+        {
+            LOCK(cs_KeyStore);
+            for (MalleableKeyMap::const_iterator mi = mapMalleableKeys.begin(); mi != mapMalleableKeys.end(); mi++)
+                malleableViewList.push_back(CMalleableKeyView(mi->first));
+        }
+    }
+
+    bool GetMalleableView(const CMalleablePubKey &mpk, CMalleableKeyView &view)
+    {
+        const CKeyID &mpkID = mpk.GetID();
+        {
+            LOCK(cs_KeyStore);
+            for (MalleableKeyMap::const_iterator mi = mapMalleableKeys.begin(); mi != mapMalleableKeys.end(); mi++)
+                if (mi->first.GetID() == mpkID)
+                {
+                    view = CMalleableKeyView(mi->first);
+                    return true;
+                }
+        }
+
+        return false;
+    }
 };
 
+typedef std::map<CKeyID, std::pair<CPubKey, std::vector<unsigned char> > > CryptedKeyMap;
+typedef std::map<CMalleableKeyView, std::vector<unsigned char> > CryptedMalleableKeyMap;
+
+/** Keystore which keeps the private keys encrypted.
+ * It derives from the basic key store, which is used if no encryption is active.
+ */
 class CCryptoKeyStore : public CBasicKeyStore
 {
 private:
-    std::map<std::vector<unsigned char>, std::vector<unsigned char> > mapCryptedKeys;
+    CryptedKeyMap mapCryptedKeys;
+    CryptedMalleableKeyMap mapCryptedMalleableKeys;
 
-    CMasterKey vMasterKey;
+    CKeyingMaterial vMasterKey;
 
     // if fUseCrypto is true, mapKeys must be empty
     // if fUseCrypto is false, vMasterKey must be empty
     bool fUseCrypto;
 
 protected:
+    bool SetCrypted();
+
+    // will encrypt previously unencrypted keys
+    bool EncryptKeys(CKeyingMaterial& vMasterKeyIn);
+    bool DecryptKeys(const CKeyingMaterial& vMasterKeyIn);
+
+    bool Unlock(const CKeyingMaterial& vMasterKeyIn);
+
+public:
+    CCryptoKeyStore() : fUseCrypto(false) { }
+
     bool IsCrypted() const
     {
         return fUseCrypto;
     }
 
-    bool SetCrypted()
+    bool IsLocked() const
     {
-        if (fUseCrypto)
-            return true;
-        if (!mapKeys.empty())
+        if (!IsCrypted())
             return false;
-        fUseCrypto = true;
+        bool result;
+        {
+            LOCK(cs_KeyStore);
+            result = vMasterKey.empty();
+        }
+        return result;
     }
 
-    // will encrypt previously unencrypted keys
-    bool GenerateMasterKey();
+    bool Lock();
+
+    virtual bool AddCryptedKey(const CPubKey &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret);
+    virtual bool AddCryptedMalleableKey(const CMalleableKeyView& keyView, const std::vector<unsigned char>  &vchCryptedSecretH);
 
-    bool GetMasterKey(CMasterKey &vMasterKeyOut) const
+    bool AddKey(const CKey& key);
+    bool AddMalleableKey(const CMalleableKeyView& keyView, const CSecret &vchSecretH);
+    bool HaveKey(const CKeyID &address) const
+    {
+        {
+            LOCK(cs_KeyStore);
+            if (!IsCrypted())
+                return CBasicKeyStore::HaveKey(address);
+            return mapCryptedKeys.count(address) > 0;
+        }
+    }
+    bool GetKey(const CKeyID &address, CKey& keyOut) const;
+    bool GetPubKey(const CKeyID &address, CPubKey& vchPubKeyOut) const;
+    void GetKeys(std::set<CKeyID> &setAddress) const
     {
         if (!IsCrypted())
-            return false;
-        if (IsLocked())
-            return false;
-        vMasterKeyOut = vMasterKey;
-        return true;
+        {
+            CBasicKeyStore::GetKeys(setAddress);
+            return;
+        }
+        setAddress.clear();
+        CryptedKeyMap::const_iterator mi = mapCryptedKeys.begin();
+        while (mi != mapCryptedKeys.end())
+        {
+            setAddress.insert((*mi).first);
+            mi++;
+        }
     }
-    bool Unlock(const CMasterKey& vMasterKeyIn);
 
-public:
-    CCryptoKeyStore() : fUseCrypto(false)
+    bool GetMalleableKey(const CMalleableKeyView &keyView, CMalleableKey &mKey) const;
+
+    bool CheckOwnership(const CPubKey &pubKeyVariant, const CPubKey &R) const
     {
+        {
+            LOCK(cs_KeyStore);
+            if (!IsCrypted())
+                return CBasicKeyStore::CheckOwnership(pubKeyVariant, R);
+            for (CryptedMalleableKeyMap::const_iterator mi = mapCryptedMalleableKeys.begin(); mi != mapCryptedMalleableKeys.end(); mi++)
+            {
+                if (mi->first.CheckKeyVariant(R, pubKeyVariant))
+                    return true;
+            }
+        }
+        return false;
     }
 
-    bool IsLocked() const
+    bool CheckOwnership(const CPubKey &pubKeyVariant, const CPubKey &R, CMalleableKeyView &view) const
     {
-        if (!IsCrypted())
-            return false;
-        return vMasterKey.empty();
+        {
+            LOCK(cs_KeyStore);
+            if (!IsCrypted())
+                return CBasicKeyStore::CheckOwnership(pubKeyVariant, R, view);
+            for (CryptedMalleableKeyMap::const_iterator mi = mapCryptedMalleableKeys.begin(); mi != mapCryptedMalleableKeys.end(); mi++)
+            {
+                if (mi->first.CheckKeyVariant(R, pubKeyVariant))
+                {
+                    view = mi->first;
+                    return true;
+                }
+            }
+        }
+        return false;
     }
 
-    bool Lock()
+    bool CreatePrivKey(const CPubKey &pubKeyVariant, const CPubKey &R, CKey &privKey) const;
+
+    void ListMalleableViews(std::list<CMalleableKeyView> &malleableViewList) const
     {
-        if (!SetCrypted())
-            return false;
-        vMasterKey.clear();
+        malleableViewList.clear();
+        {
+            LOCK(cs_KeyStore);
+            if (!IsCrypted())
+                return CBasicKeyStore::ListMalleableViews(malleableViewList);
+            for (CryptedMalleableKeyMap::const_iterator mi = mapCryptedMalleableKeys.begin(); mi != mapCryptedMalleableKeys.end(); mi++)
+                malleableViewList.push_back(CMalleableKeyView(mi->first));
+        }
     }
 
-    virtual bool AddCryptedKey(const std::vector<unsigned char> &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret);
-    bool AddKey(const CKey& key);
-    bool HaveKey(const std::vector<unsigned char> &vchPubKey) const
+    bool GetMalleableView(const CMalleablePubKey &mpk, CMalleableKeyView &view)
     {
-        if (!IsCrypted())
-            return CBasicKeyStore::HaveKey(vchPubKey);
-        return mapCryptedKeys.count(vchPubKey) > 0;
+        const CKeyID &mpkID = mpk.GetID();
+        {
+            LOCK(cs_KeyStore);
+            if (!IsCrypted())
+                return CBasicKeyStore::GetMalleableView(mpk, view);
+            for (CryptedMalleableKeyMap::const_iterator mi = mapCryptedMalleableKeys.begin(); mi != mapCryptedMalleableKeys.end(); mi++)
+                if (mi->first.GetID() == mpkID)
+                {
+                    view = CMalleableKeyView(mi->first);
+                    return true;
+                }
+        }
+
+        return false;
     }
-    bool GetPrivKey(const std::vector<unsigned char> &vchPubKey, CPrivKey& keyOut) const;
+
+    /* Wallet status (encrypted, locked) changed.
+     * Note: Called without locks held.
+     */
+    boost::signals2::signal<void (CCryptoKeyStore* wallet)> NotifyStatusChanged;
 };
 
 #endif