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RPC: Add new methods suitable for malleable key pairs management;
[novacoin.git] / src / key.cpp
diff --git a/src/key.cpp b/src/key.cpp
index 9503f95..c37b102 100644 (file)
--- a/src/key.cpp
+++ b/src/key.cpp
@@ -592,6 +592,12 @@ bool CPoint::setBytes(const std::vector<unsigned char> &vchBytes)
     return true;
 }
 
+// Initialize from octets stream
+bool CPoint::setPubKey(const CPubKey &vchPubKey)
+{
+    return setBytes(vchPubKey.Raw());
+}
+
 // Serialize to octets stream
 bool CPoint::getBytes(std::vector<unsigned char> &vchBytes)
 {
@@ -666,7 +672,7 @@ void CMalleablePubKey::GetVariant(CPubKey &R, CPubKey &vchPubKeyVariant)
     EC_KEY_free(eckey);
 
     CPoint point;
-    if (!point.setBytes(pubKeyL.Raw())) {
+    if (!point.setPubKey(pubKeyL)) {
         throw key_error("CMalleablePubKey::GetVariant() : Unable to decode L value");
     }
 
@@ -683,7 +689,7 @@ void CMalleablePubKey::GetVariant(CPubKey &R, CPubKey &vchPubKeyVariant)
     bnHash.setuint160(Hash160(vchLr));
 
     CPoint pointH;
-    pointH.setBytes(pubKeyH.Raw());
+    pointH.setPubKey(pubKeyH);
 
     CPoint P;
     // Calculate P = Hash(L*r)*G + H
@@ -699,7 +705,7 @@ void CMalleablePubKey::GetVariant(CPubKey &R, CPubKey &vchPubKeyVariant)
     vchPubKeyVariant = CPubKey(vchResult);
 }
 
-std::string CMalleablePubKey::ToString()
+std::string CMalleablePubKey::ToString() const
 {
     CDataStream ssKey(SER_NETWORK, PROTOCOL_VERSION);
     ssKey << *this;
@@ -708,6 +714,15 @@ std::string CMalleablePubKey::ToString()
     return EncodeBase58Check(vch);
 }
 
+std::vector<unsigned char> CMalleablePubKey::Raw() const
+{
+    CDataStream ssKey(SER_NETWORK, PROTOCOL_VERSION);
+    ssKey << *this;
+    std::vector<unsigned char> vch(ssKey.begin(), ssKey.end());
+
+    return vch;
+}
+
 bool CMalleablePubKey::SetString(const std::string& strMalleablePubKey)
 {
     std::vector<unsigned char> vchTemp;
@@ -768,12 +783,14 @@ CMalleableKey::CMalleableKey(const CSecret &L, const CSecret &H)
     SetSecrets(L, H);
 }
 
+/*
 CMalleableKey& CMalleableKey::operator=(const CMalleableKey &b)
 {
     SetSecrets(b.vchSecretL, b.vchSecretH);
 
     return (*this);
 }
+*/
 
 CMalleableKey::~CMalleableKey()
 {
@@ -789,7 +806,7 @@ bool CMalleableKey::SetSecrets(const CSecret &pvchSecretL, const CSecret &pvchSe
     Reset();
     CKey L, H;
 
-    if (!L.SetSecret(pvchSecretL, true) || !H.SetSecret(pvchSecretH, true))
+    if (pvchSecretL.size() != 32 || !pvchSecretH.size() != 32 || !L.SetSecret(pvchSecretL, true) || !H.SetSecret(pvchSecretH, true))
     {
         nVersion = 0;
         return false;
@@ -821,7 +838,7 @@ CMalleablePubKey CMalleableKey::GetMalleablePubKey() const
 }
 
 // Check ownership
-bool CMalleableKey::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVariant)
+bool CMalleableKey::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVariant) const
 {
     if (IsNull()) {
         throw key_error("CMalleableKey::CheckKeyVariant() : Attempting to run on NULL key object.");
@@ -836,7 +853,7 @@ bool CMalleableKey::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVa
     }
 
     CPoint point_R;
-    if (!point_R.setBytes(R.Raw())) {
+    if (!point_R.setPubKey(R)) {
         throw key_error("CMalleableKey::CheckKeyVariant() : Unable to decode R value");
     }
 
@@ -845,12 +862,12 @@ bool CMalleableKey::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVa
     std::vector<unsigned char> vchPubKeyH = H.GetPubKey().Raw();
 
     CPoint point_H;
-    if (!point_H.setBytes(vchPubKeyH)) {
+    if (!point_H.setPubKey(vchPubKeyH)) {
         throw key_error("CMalleableKey::CheckKeyVariant() : Unable to decode H value");
     }
 
     CPoint point_P;
-    if (!point_P.setBytes(vchPubKeyVariant.Raw())) {
+    if (!point_P.setPubKey(vchPubKeyVariant)) {
         throw key_error("CMalleableKey::CheckKeyVariant() : Unable to decode P value");
     }
 
@@ -891,7 +908,7 @@ bool CMalleableKey::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVa
 }
 
 // Check ownership and restore private key
-bool CMalleableKey::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVariant, CKey &privKeyVariant)
+bool CMalleableKey::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVariant, CKey &privKeyVariant) const
 {
     if (IsNull()) {
         throw key_error("CMalleableKey::CheckKeyVariant() : Attempting to run on NULL key object.");
@@ -906,7 +923,7 @@ bool CMalleableKey::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVa
     }
 
     CPoint point_R;
-    if (!point_R.setBytes(R.Raw())) {
+    if (!point_R.setPubKey(R)) {
         throw key_error("CMalleableKey::CheckKeyVariant() : Unable to decode R value");
     }
 
@@ -915,12 +932,12 @@ bool CMalleableKey::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVa
     std::vector<unsigned char> vchPubKeyH = H.GetPubKey().Raw();
 
     CPoint point_H;
-    if (!point_H.setBytes(vchPubKeyH)) {
+    if (!point_H.setPubKey(vchPubKeyH)) {
         throw key_error("CMalleableKey::CheckKeyVariant() : Unable to decode H value");
     }
 
     CPoint point_P;
-    if (!point_P.setBytes(vchPubKeyVariant.Raw())) {
+    if (!point_P.setPubKey(vchPubKeyVariant)) {
         throw key_error("CMalleableKey::CheckKeyVariant() : Unable to decode P value");
     }
 
@@ -970,7 +987,7 @@ bool CMalleableKey::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVa
     return true;
 }
 
-std::string CMalleableKey::ToString()
+std::string CMalleableKey::ToString() const
 {
     CDataStream ssKey(SER_NETWORK, PROTOCOL_VERSION);
     ssKey << *this;
@@ -979,6 +996,15 @@ std::string CMalleableKey::ToString()
     return EncodeBase58Check(vch);
 }
 
+std::vector<unsigned char> CMalleableKey::Raw() const
+{
+    CDataStream ssKey(SER_NETWORK, PROTOCOL_VERSION);
+    ssKey << *this;
+    std::vector<unsigned char> vch(ssKey.begin(), ssKey.end());
+
+    return vch;
+}
+
 bool CMalleableKey::SetString(const std::string& strMutableKey)
 {
     std::vector<unsigned char> vchTemp;
@@ -996,17 +1022,23 @@ bool CMalleableKey::SetString(const std::string& strMutableKey)
 
 CMalleableKeyView::CMalleableKeyView(const CMalleableKey &b)
 {
-    assert(b.nVersion == CURRENT_VERSION);
+    if (b.vchSecretL.size() != 32)
+        throw key_error("CMalleableKeyView::CMalleableKeyView() : L size must be 32 bytes");
+
+    if (b.vchSecretH.size() != 32)
+        throw key_error("CMalleableKeyView::CMalleableKeyView() : L size must be 32 bytes");
+
     vchSecretL = b.vchSecretL;
 
     CKey H;
     H.SetSecret(b.vchSecretH, true);
+
     vchPubKeyH = H.GetPubKey().Raw();
+    nVersion = b.nVersion;
 }
 
 CMalleableKeyView::CMalleableKeyView(const CMalleableKeyView &b)
 {
-    assert(b.nVersion == CURRENT_VERSION);
     vchSecretL = b.vchSecretL;
     vchPubKeyH = b.vchPubKeyH;
     nVersion = CURRENT_VERSION;
@@ -1016,16 +1048,17 @@ CMalleableKeyView::CMalleableKeyView(const CSecret &L, const CPubKey &pvchPubKey
 {
     vchSecretL = L;
     vchPubKeyH = pvchPubKeyH.Raw();
+    nVersion = CURRENT_VERSION;
 }
 
 CMalleableKeyView& CMalleableKeyView::operator=(const CMalleableKey &b)
 {
-    assert(b.nVersion == CURRENT_VERSION);
     vchSecretL = b.vchSecretL;
 
     CKey H;
     H.SetSecret(b.vchSecretH, true);
     vchPubKeyH = H.GetPubKey().Raw();
+    nVersion = b.nVersion;
 
     return (*this);
 }
@@ -1042,7 +1075,7 @@ CMalleablePubKey CMalleableKeyView::GetMalleablePubKey() const
 }
 
 // Check ownership
-bool CMalleableKeyView::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVariant)
+bool CMalleableKeyView::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVariant) const
 {
     if (!R.IsValid()) {
         throw key_error("CMalleableKeyView::CheckKeyVariant() : R is invalid");
@@ -1053,17 +1086,17 @@ bool CMalleableKeyView::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubK
     }
 
     CPoint point_R;
-    if (!point_R.setBytes(R.Raw())) {
+    if (!point_R.setPubKey(R)) {
         throw key_error("CMalleableKeyView::CheckKeyVariant() : Unable to decode R value");
     }
 
     CPoint point_H;
-    if (!point_H.setBytes(vchPubKeyH)) {
+    if (!point_H.setPubKey(vchPubKeyH)) {
         throw key_error("CMalleableKeyView::CheckKeyVariant() : Unable to decode H value");
     }
 
     CPoint point_P;
-    if (!point_P.setBytes(vchPubKeyVariant.Raw())) {
+    if (!point_P.setPubKey(vchPubKeyVariant)) {
         throw key_error("CMalleableKeyView::CheckKeyVariant() : Unable to decode P value");
     }
 
@@ -1103,7 +1136,7 @@ bool CMalleableKeyView::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubK
     return true;
 }
 
-std::string CMalleableKeyView::ToString()
+std::string CMalleableKeyView::ToString() const
 {
     CDataStream ssKey(SER_NETWORK, PROTOCOL_VERSION);
     ssKey << *this;
@@ -1125,6 +1158,16 @@ bool CMalleableKeyView::SetString(const std::string& strMutableKey)
     return IsNull();
 }
 
+std::vector<unsigned char> CMalleableKeyView::Raw() const
+{
+    CDataStream ssKey(SER_NETWORK, PROTOCOL_VERSION);
+    ssKey << *this;
+    std::vector<unsigned char> vch(ssKey.begin(), ssKey.end());
+
+    return vch;
+}
+
+
 bool CMalleableKeyView::IsNull() const
 {
     return nVersion != CURRENT_VERSION;
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