EXPERIMENTAL: custom peer collector

[novacoin.git] / src / keystore.h

diff --git a/src/keystore.h b/src/keystore.h
index 96285fb..f4d0ad3 100644 (file)
--- a/src/keystore.h
+++ b/src/keystore.h
@@ -39,6 +39,10 @@ public:
     // Add a key to the store.
     virtual bool AddKey(const CKey& key) =0;
 
+    // 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;
@@ -64,22 +68,45 @@ public:
         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:
     KeyMap mapKeys;
+    MalleableKeyMap mapMalleableKeys;
+
     ScriptMap mapScripts;
     WatchOnlySet setWatchOnly;
 
 public:
     bool AddKey(const CKey& key);
+    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;
@@ -94,12 +121,8 @@ public:
         setAddress.clear();
         {
             LOCK(cs_KeyStore);
-            KeyMap::const_iterator mi = mapKeys.begin();
-            while (mi != mapKeys.end())
-            {
-                setAddress.insert((*mi).first);
-                mi++;
-            }
+            KeyMap::const_iterator mi;
+            for (mi = mapKeys.begin(); mi != mapKeys.end(); ++mi) setAddress.insert((*mi).first);
         }
     }
     bool GetKey(const CKeyID &address, CKey &keyOut) const
@@ -124,9 +147,81 @@ public:
     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
+    {
+        {
+            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 CreatePrivKey(const CPubKey &pubKeyVariant, const CPubKey &R, CKey &privKey) const
+    {
+        {
+            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.
@@ -135,6 +230,7 @@ class CCryptoKeyStore : public CBasicKeyStore
 {
 private:
     CryptedKeyMap mapCryptedKeys;
+    CryptedMalleableKeyMap mapCryptedMalleableKeys;
 
     CKeyingMaterial vMasterKey;
 
@@ -152,9 +248,7 @@ protected:
     bool Unlock(const CKeyingMaterial& vMasterKeyIn);
 
 public:
-    CCryptoKeyStore() : fUseCrypto(false)
-    {
-    }
+    CCryptoKeyStore() : fUseCrypto(false) { }
 
     bool IsCrypted() const
     {
@@ -176,7 +270,10 @@ public:
     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 AddKey(const CKey& key);
+    bool AddMalleableKey(const CMalleableKeyView& keyView, const CSecret &vchSecretH);
     bool HaveKey(const CKeyID &address) const
     {
         {
@@ -204,6 +301,79 @@ public:
         }
     }
 
+    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 CheckOwnership(const CPubKey &pubKeyVariant, const CPubKey &R, CMalleableKeyView &view) const
+    {
+        {
+            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 CheckOwnership(const CMalleablePubKey &mpk)
+    {
+        CMalleableKeyView view;
+        return GetMalleableView(mpk, view);
+    }
+
+    bool CreatePrivKey(const CPubKey &pubKeyVariant, const CPubKey &R, CKey &privKey) const;
+
+    void ListMalleableViews(std::list<CMalleableKeyView> &malleableViewList) const
+    {
+        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));
+        }
+    }
+
+    bool GetMalleableView(const CMalleablePubKey &mpk, CMalleableKeyView &view)
+    {
+        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;
+    }
+
     /* Wallet status (encrypted, locked) changed.
      * Note: Called without locks held.
      */