X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=src%2Fkey.cpp;h=49868b8f394abdd193165ad60dc08b356b922cca;hb=75744e6526193604bfbcc6be3a3793315556f12c;hp=eb4f5c4520b1121bfce17cdf4105d13685d72460;hpb=b8dd44c350c3fb0b958cea2baba8aab268f44cf2;p=novacoin.git

diff --git a/src/key.cpp b/src/key.cpp
index eb4f5c4..49868b8 100644
--- a/src/key.cpp
+++ b/src/key.cpp
@@ -6,12 +6,9 @@
 
 #include <openssl/ecdsa.h>
 #include <openssl/obj_mac.h>
-#include <openssl/ssl.h>
-#include <openssl/ecdh.h>
 
 #include "key.h"
 #include "base58.h"
-#include "ies.h"
 
 // Generate a private key from just the secret parameter
 int EC_KEY_regenerate_key(EC_KEY *eckey, BIGNUM *priv_key)
@@ -201,6 +198,14 @@ CKey::CKey(const CKey& b)
     fCompressedPubKey = b.fCompressedPubKey;
 }
 
+CKey::CKey(const CSecret& b, bool fCompressed)
+{
+    pkey = EC_KEY_new_by_curve_name(NID_secp256k1);
+    if (pkey == NULL)
+        throw key_error("CKey::CKey(const CKey&) : EC_KEY_dup failed");
+    SetSecret(b, fCompressed);
+}
+
 CKey& CKey::operator=(const CKey& b)
 {
     if (!EC_KEY_copy(pkey, b.pkey))
@@ -326,6 +331,12 @@ CSecret CKey::GetSecret(bool &fCompressed) const
     return vchRet;
 }
 
+CSecret CKey::GetSecret() const
+{
+    bool fCompressed;
+    return GetSecret(fCompressed);
+}
+
 CPrivKey CKey::GetPrivKey() const
 {
     int nSize = i2d_ECPrivateKey(pkey, NULL);
@@ -592,6 +603,12 @@ 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 +683,7 @@ 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 +700,7 @@ 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 +716,7 @@ 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 +725,23 @@ std::string CMalleablePubKey::ToString()
     return EncodeBase58Check(vch);
 }
 
+bool CMalleablePubKey::setvch(const std::vector<unsigned char> &vchPubKeyPair)
+{
+    CDataStream ssKey(vchPubKeyPair, SER_NETWORK, PROTOCOL_VERSION);
+    ssKey >> *this;
+
+    return IsValid();
+}
+
+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;
@@ -723,9 +757,7 @@ bool CMalleablePubKey::SetString(const std::string& strMalleablePubKey)
 
 bool CMalleablePubKey::operator==(const CMalleablePubKey &b)
 {
-    return (nVersion == b.nVersion &&
-            pubKeyL == b.pubKeyL &&
-            pubKeyH == b.pubKeyH);
+    return pubKeyL == b.pubKeyL && pubKeyH == b.pubKeyH;
 }
 
 
@@ -735,22 +767,18 @@ void CMalleableKey::Reset()
 {
     vchSecretL.clear();
     vchSecretH.clear();
-
-    nVersion = 0;
 }
 
 void CMalleableKey::MakeNewKeys()
 {
-    CKey L, H;
-    bool fCompressed = true;
-
-    L.MakeNewKey(true);
-    H.MakeNewKey(true);
+    Reset();
 
-    vchSecretL = L.GetSecret(fCompressed);
-    vchSecretH = H.GetSecret(fCompressed);
+    CKey keyL, keyH;
+    keyL.MakeNewKey();
+    keyH.MakeNewKey();
 
-    nVersion = CURRENT_VERSION;
+    vchSecretL = keyL.GetSecret();
+    vchSecretH = keyH.GetSecret();
 }
 
 CMalleableKey::CMalleableKey()
@@ -768,95 +796,79 @@ 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()
 {
 }
 
 bool CMalleableKey::IsNull() const
 {
-    return nVersion != CURRENT_VERSION;
+    return vchSecretL.size() != 32 || vchSecretH.size() != 32;
 }
 
 bool CMalleableKey::SetSecrets(const CSecret &pvchSecretL, const CSecret &pvchSecretH)
 {
     Reset();
-    CKey L, H;
 
-    if (!L.SetSecret(pvchSecretL, true) || !H.SetSecret(pvchSecretH, true))
-    {
-        nVersion = 0;
+    CKey keyL(pvchSecretL);
+    CKey keyH(pvchSecretH);
+
+    if (!keyL.IsValid() || !keyH.IsValid())
         return false;
-    }
 
     vchSecretL = pvchSecretL;
     vchSecretH = pvchSecretH;
-    nVersion = CURRENT_VERSION;
 
     return true;
 }
 
-void CMalleableKey::GetSecrets(CSecret &pvchSecretL, CSecret &pvchSecretH) const
-{
-    pvchSecretL = vchSecretL;
-    pvchSecretH = vchSecretH;
-}
-
 CMalleablePubKey CMalleableKey::GetMalleablePubKey() const
 {
-    CKey L, H;
-    L.SetSecret(vchSecretL, true);
-    H.SetSecret(vchSecretH, true);
-
-    std::vector<unsigned char> vchPubKeyL = L.GetPubKey().Raw();
-    std::vector<unsigned char> vchPubKeyH = H.GetPubKey().Raw();
-
-    return CMalleablePubKey(vchPubKeyL, vchPubKeyH);
+    CKey L(vchSecretL), H(vchSecretH);
+    return CMalleablePubKey(L.GetPubKey().Raw(), H.GetPubKey().Raw());
 }
 
 // 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.");
     }
 
     if (!R.IsValid()) {
-        throw key_error("CMalleableKey::CheckKeyVariant() : R is invalid");
+        printf("CMalleableKey::CheckKeyVariant() : R is invalid");
+        return false;
     }
 
     if (!vchPubKeyVariant.IsValid()) {
-        throw key_error("CMalleableKey::CheckKeyVariant() : public key variant is invalid");
+        printf("CMalleableKey::CheckKeyVariant() : public key variant is invalid");
+        return false;
     }
 
     CPoint point_R;
-    if (!point_R.setBytes(R.Raw())) {
-        throw key_error("CMalleableKey::CheckKeyVariant() : Unable to decode R value");
+    if (!point_R.setPubKey(R)) {
+        printf("CMalleableKey::CheckKeyVariant() : Unable to decode R value");
+        return false;
     }
 
-    CKey H;
-    H.SetSecret(vchSecretH, true);
+    CKey H(vchSecretH);
     std::vector<unsigned char> vchPubKeyH = H.GetPubKey().Raw();
 
     CPoint point_H;
-    if (!point_H.setBytes(vchPubKeyH)) {
-        throw key_error("CMalleableKey::CheckKeyVariant() : Unable to decode H value");
+    if (!point_H.setPubKey(vchPubKeyH)) {
+        printf("CMalleableKey::CheckKeyVariant() : Unable to decode H value");
+        return false;
     }
 
     CPoint point_P;
-    if (!point_P.setBytes(vchPubKeyVariant.Raw())) {
-        throw key_error("CMalleableKey::CheckKeyVariant() : Unable to decode P value");
+    if (!point_P.setPubKey(vchPubKeyVariant)) {
+        printf("CMalleableKey::CheckKeyVariant() : Unable to decode P value");
+        return false;
     }
 
     // Infinity points are senseless
     if (point_P.IsInfinity()) {
-        throw key_error("CMalleableKey::CheckKeyVariant() : P is infinity");
+        printf("CMalleableKey::CheckKeyVariant() : P is infinity");
+        return false;
     }
 
     CBigNum bnl;
@@ -866,7 +878,8 @@ bool CMalleableKey::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVa
 
     std::vector<unsigned char> vchRl;
     if (!point_R.getBytes(vchRl)) {
-        throw key_error("CMalleableKey::CheckKeyVariant() : Unable to convert Rl value");
+        printf("CMalleableKey::CheckKeyVariant() : Unable to convert Rl value");
+        return false;
     }
 
     // Calculate Hash(R*l)
@@ -879,7 +892,8 @@ bool CMalleableKey::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVa
 
     // Infinity points are senseless
     if (point_Ps.IsInfinity()) {
-        throw key_error("CMalleableKey::CheckKeyVariant() : Ps is infinity");
+        printf("CMalleableKey::CheckKeyVariant() : Ps is infinity");
+        return false;
     }
 
     // Check ownership
@@ -891,42 +905,47 @@ 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.");
     }
 
     if (!R.IsValid()) {
-        throw key_error("CMalleableKey::CheckKeyVariant() : R is invalid");
+        printf("CMalleableKey::CheckKeyVariant() : R is invalid");
+        return false;
     }
 
     if (!vchPubKeyVariant.IsValid()) {
-        throw key_error("CMalleableKey::CheckKeyVariant() : public key variant is invalid");
+        printf("CMalleableKey::CheckKeyVariant() : public key variant is invalid");
+        return false;
     }
 
     CPoint point_R;
-    if (!point_R.setBytes(R.Raw())) {
-        throw key_error("CMalleableKey::CheckKeyVariant() : Unable to decode R value");
+    if (!point_R.setPubKey(R)) {
+        printf("CMalleableKey::CheckKeyVariant() : Unable to decode R value");
+        return false;
     }
 
-    CKey H;
-    H.SetSecret(vchSecretH, true);
+    CKey H(vchSecretH);
     std::vector<unsigned char> vchPubKeyH = H.GetPubKey().Raw();
 
     CPoint point_H;
-    if (!point_H.setBytes(vchPubKeyH)) {
-        throw key_error("CMalleableKey::CheckKeyVariant() : Unable to decode H value");
+    if (!point_H.setPubKey(vchPubKeyH)) {
+        printf("CMalleableKey::CheckKeyVariant() : Unable to decode H value");
+        return false;
     }
 
     CPoint point_P;
-    if (!point_P.setBytes(vchPubKeyVariant.Raw())) {
-        throw key_error("CMalleableKey::CheckKeyVariant() : Unable to decode P value");
+    if (!point_P.setPubKey(vchPubKeyVariant)) {
+        printf("CMalleableKey::CheckKeyVariant() : Unable to decode P value");
+        return false;
     }
 
     // Infinity points are senseless
     if (point_P.IsInfinity()) {
-        throw key_error("CMalleableKey::CheckKeyVariant() : P is infinity");
+        printf("CMalleableKey::CheckKeyVariant() : P is infinity");
+        return false;
     }
 
     CBigNum bnl;
@@ -936,7 +955,8 @@ bool CMalleableKey::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVa
 
     std::vector<unsigned char> vchRl;
     if (!point_R.getBytes(vchRl)) {
-        throw key_error("CMalleableKey::CheckKeyVariant() : Unable to convert Rl value");
+        printf("CMalleableKey::CheckKeyVariant() : Unable to convert Rl value");
+        return false;
     }
 
     // Calculate Hash(R*l)
@@ -949,7 +969,8 @@ bool CMalleableKey::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVa
 
     // Infinity points are senseless
     if (point_Ps.IsInfinity()) {
-        throw key_error("CMalleableKey::CheckKeyVariant() : Ps is infinity");
+        printf("CMalleableKey::CheckKeyVariant() : Ps is infinity");
+        return false;
     }
 
     // Check ownership
@@ -965,12 +986,12 @@ bool CMalleableKey::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVa
     CBigNum bnp = bnHash + bnh;
 
     std::vector<unsigned char> vchp = bnp.getBytes();
-    privKeyVariant.SetSecret(CSecret(vchp.begin(), vchp.end()), true);
+    privKeyVariant.SetSecret(CSecret(vchp.begin(), vchp.end()));
 
     return true;
 }
 
-std::string CMalleableKey::ToString()
+std::string CMalleableKey::ToString() const
 {
     CDataStream ssKey(SER_NETWORK, PROTOCOL_VERSION);
     ssKey << *this;
@@ -979,6 +1000,15 @@ 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;
@@ -989,34 +1019,41 @@ bool CMalleableKey::SetString(const std::string& strMutableKey)
     CDataStream ssKey(vchTemp, SER_NETWORK, PROTOCOL_VERSION);
     ssKey >> *this;
 
-    return IsNull();
+    return IsValid();
 }
 
 // CMalleableKeyView
 
+CMalleableKeyView::CMalleableKeyView(const std::string &strMalleableKey)
+{
+    SetString(strMalleableKey);
+}
+
 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() : H size must be 32 bytes");
+
     vchSecretL = b.vchSecretL;
 
-    CKey H;
-    H.SetSecret(b.vchSecretH, true);
+    CKey H(b.vchSecretH);
     vchPubKeyH = H.GetPubKey().Raw();
 }
 
-CMalleableKeyView::CMalleableKeyView(const CSecret &L, const CPubKey &pvchPubKeyH)
+CMalleableKeyView::CMalleableKeyView(const CMalleableKeyView &b)
 {
-    vchSecretL = L;
-    vchPubKeyH = pvchPubKeyH.Raw();
+    vchSecretL = b.vchSecretL;
+    vchPubKeyH = b.vchPubKeyH;
 }
 
 CMalleableKeyView& CMalleableKeyView::operator=(const CMalleableKey &b)
 {
-    assert(b.nVersion == CURRENT_VERSION);
     vchSecretL = b.vchSecretL;
 
-    CKey H;
-    H.SetSecret(b.vchSecretH, true);
+    CKey H(b.vchSecretH);
     vchPubKeyH = H.GetPubKey().Raw();
 
     return (*this);
@@ -1028,40 +1065,49 @@ CMalleableKeyView::~CMalleableKeyView()
 
 CMalleablePubKey CMalleableKeyView::GetMalleablePubKey() const
 {
-    CKey keyL;
-    keyL.SetSecret(vchSecretL, true);
+    CKey keyL(vchSecretL);
     return CMalleablePubKey(keyL.GetPubKey(), vchPubKeyH);
 }
 
 // Check ownership
-bool CMalleableKeyView::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVariant)
+bool CMalleableKeyView::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVariant) const
 {
+    if (!IsValid()) {
+        throw key_error("CMalleableKeyView::CheckKeyVariant() : Attempting to run on invalid view object.");
+    }
+
     if (!R.IsValid()) {
-        throw key_error("CMalleableKeyView::CheckKeyVariant() : R is invalid");
+        printf("CMalleableKeyView::CheckKeyVariant() : R is invalid");
+        return false;
     }
 
     if (!vchPubKeyVariant.IsValid()) {
-        throw key_error("CMalleableKeyView::CheckKeyVariant() : public key variant is invalid");
+        printf("CMalleableKeyView::CheckKeyVariant() : public key variant is invalid");
+        return false;
     }
 
     CPoint point_R;
-    if (!point_R.setBytes(R.Raw())) {
-        throw key_error("CMalleableKeyView::CheckKeyVariant() : Unable to decode R value");
+    if (!point_R.setPubKey(R)) {
+        printf("CMalleableKeyView::CheckKeyVariant() : Unable to decode R value");
+        return false;
     }
 
     CPoint point_H;
-    if (!point_H.setBytes(vchPubKeyH)) {
-        throw key_error("CMalleableKeyView::CheckKeyVariant() : Unable to decode H value");
+    if (!point_H.setPubKey(vchPubKeyH)) {
+        printf("CMalleableKeyView::CheckKeyVariant() : Unable to decode H value");
+        return false;
     }
 
     CPoint point_P;
-    if (!point_P.setBytes(vchPubKeyVariant.Raw())) {
-        throw key_error("CMalleableKeyView::CheckKeyVariant() : Unable to decode P value");
+    if (!point_P.setPubKey(vchPubKeyVariant)) {
+        printf("CMalleableKeyView::CheckKeyVariant() : Unable to decode P value");
+        return false;
     }
 
     // Infinity points are senseless
     if (point_P.IsInfinity()) {
-        throw key_error("CMalleableKeyView::CheckKeyVariant() : P is infinity");
+        printf("CMalleableKeyView::CheckKeyVariant() : P is infinity");
+        return false;
     }
 
     CBigNum bnl;
@@ -1071,7 +1117,8 @@ bool CMalleableKeyView::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubK
 
     std::vector<unsigned char> vchRl;
     if (!point_R.getBytes(vchRl)) {
-        throw key_error("CMalleableKeyView::CheckKeyVariant() : Unable to convert Rl value");
+        printf("CMalleableKeyView::CheckKeyVariant() : Unable to convert Rl value");
+        return false;
     }
 
     // Calculate Hash(R*l)
@@ -1084,7 +1131,8 @@ bool CMalleableKeyView::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubK
 
     // Infinity points are senseless
     if (point_Ps.IsInfinity()) {
-        throw key_error("CMalleableKeyView::CheckKeyVariant() : Ps is infinity");
+        printf("CMalleableKeyView::CheckKeyVariant() : Ps is infinity");
+        return false;
     }
 
     // Check ownership
@@ -1095,6 +1143,43 @@ bool CMalleableKeyView::CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubK
     return true;
 }
 
+std::string CMalleableKeyView::ToString() const
+{
+    CDataStream ssKey(SER_NETWORK, PROTOCOL_VERSION);
+    ssKey << *this;
+    std::vector<unsigned char> vch(ssKey.begin(), ssKey.end());
+
+    return EncodeBase58Check(vch);
+}
+
+bool CMalleableKeyView::SetString(const std::string& strMutableKey)
+{
+    std::vector<unsigned char> vchTemp;
+    if (!DecodeBase58Check(strMutableKey, vchTemp)) {
+        throw key_error("CMalleableKeyView::SetString() : Provided key data seems corrupted.");
+    }
+
+    CDataStream ssKey(vchTemp, SER_NETWORK, PROTOCOL_VERSION);
+    ssKey >> *this;
+
+    return IsValid();
+}
+
+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::IsValid() const
+{
+    return vchSecretL.size() == 32 && GetMalleablePubKey().IsValid();
+}
+
 //// Asymmetric encryption
 
 void CPubKey::EncryptData(const std::vector<unsigned char>& data, std::vector<unsigned char>& encrypted)