boost: remove CPubKey dependency from CECKey. Follow-up of e405aa48
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25cc1cf8dc
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1 changed files with 28 additions and 21 deletions
49
src/key.cpp
49
src/key.cpp
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@ -201,21 +201,20 @@ public:
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return false;
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}
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void GetPubKey(CPubKey &pubkey, bool fCompressed) {
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void GetPubKey(std::vector<unsigned char> &pubkey, bool fCompressed) {
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EC_KEY_set_conv_form(pkey, fCompressed ? POINT_CONVERSION_COMPRESSED : POINT_CONVERSION_UNCOMPRESSED);
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int nSize = i2o_ECPublicKey(pkey, NULL);
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assert(nSize);
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assert(nSize <= 65);
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unsigned char c[65];
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unsigned char *pbegin = c;
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pubkey.clear();
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pubkey.resize(nSize);
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unsigned char *pbegin(begin_ptr(pubkey));
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int nSize2 = i2o_ECPublicKey(pkey, &pbegin);
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assert(nSize == nSize2);
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pubkey.Set(&c[0], &c[nSize]);
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}
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bool SetPubKey(const CPubKey &pubkey) {
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const unsigned char* pbegin = pubkey.begin();
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return o2i_ECPublicKey(&pkey, &pbegin, pubkey.size()) != NULL;
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bool SetPubKey(const unsigned char* pubkey, size_t size) {
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return o2i_ECPublicKey(&pkey, &pubkey, size) != NULL;
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}
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bool Sign(const uint256 &hash, std::vector<unsigned char>& vchSig, bool lowS) {
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@ -261,12 +260,12 @@ public:
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int nBitsR = BN_num_bits(sig->r);
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int nBitsS = BN_num_bits(sig->s);
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if (nBitsR <= 256 && nBitsS <= 256) {
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CPubKey pubkey;
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std::vector<unsigned char> pubkey;
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GetPubKey(pubkey, true);
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for (int i=0; i<4; i++) {
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CECKey keyRec;
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if (ECDSA_SIG_recover_key_GFp(keyRec.pkey, sig, (unsigned char*)&hash, sizeof(hash), i, 1) == 1) {
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CPubKey pubkeyRec;
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std::vector<unsigned char> pubkeyRec;
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keyRec.GetPubKey(pubkeyRec, true);
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if (pubkeyRec == pubkey) {
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rec = i;
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@ -455,19 +454,21 @@ CPrivKey CKey::GetPrivKey() const {
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CPubKey CKey::GetPubKey() const {
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assert(fValid);
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CPubKey pubkey;
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CPubKey result;
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#ifdef USE_SECP256K1
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int clen = 65;
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int ret = secp256k1_ecdsa_pubkey_create((unsigned char*)pubkey.begin(), &clen, begin(), fCompressed);
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int ret = secp256k1_ecdsa_pubkey_create((unsigned char*)result.begin(), &clen, begin(), fCompressed);
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assert((int)result.size() == clen);
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assert(ret);
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assert(pubkey.IsValid());
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assert((int)pubkey.size() == clen);
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#else
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std::vector<unsigned char> pubkey;
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CECKey key;
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key.SetSecretBytes(vch);
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key.GetPubKey(pubkey, fCompressed);
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result.Set(pubkey.begin(), pubkey.end());
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#endif
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return pubkey;
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assert(result.IsValid());
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return result;
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}
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bool CKey::Sign(const uint256 &hash, std::vector<unsigned char>& vchSig, bool lowS) const {
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@ -544,7 +545,7 @@ bool CPubKey::Verify(const uint256 &hash, const std::vector<unsigned char>& vchS
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return false;
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#else
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CECKey key;
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if (!key.SetPubKey(*this))
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if (!key.SetPubKey(begin(), size()))
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return false;
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if (!key.Verify(hash, vchSig))
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return false;
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@ -566,7 +567,9 @@ bool CPubKey::RecoverCompact(const uint256 &hash, const std::vector<unsigned cha
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CECKey key;
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if (!key.Recover(hash, &vchSig[1], recid))
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return false;
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key.GetPubKey(*this, fComp);
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std::vector<unsigned char> pubkey;
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key.GetPubKey(pubkey, fComp);
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Set(pubkey.begin(), pubkey.end());
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#endif
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return true;
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}
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@ -579,7 +582,7 @@ bool CPubKey::IsFullyValid() const {
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return false;
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#else
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CECKey key;
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if (!key.SetPubKey(*this))
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if (!key.SetPubKey(begin(), size()))
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return false;
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#endif
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return true;
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@ -595,9 +598,11 @@ bool CPubKey::Decompress() {
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assert(clen == (int)size());
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#else
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CECKey key;
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if (!key.SetPubKey(*this))
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if (!key.SetPubKey(begin(), size()))
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return false;
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key.GetPubKey(*this, false);
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std::vector<unsigned char> pubkey;
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key.GetPubKey(pubkey, false);
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Set(pubkey.begin(), pubkey.end());
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#endif
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return true;
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}
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@ -652,9 +657,11 @@ bool CPubKey::Derive(CPubKey& pubkeyChild, unsigned char ccChild[32], unsigned i
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bool ret = secp256k1_ecdsa_pubkey_tweak_add((unsigned char*)pubkeyChild.begin(), pubkeyChild.size(), out);
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#else
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CECKey key;
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bool ret = key.SetPubKey(*this);
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bool ret = key.SetPubKey(begin(), size());
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ret &= key.TweakPublic(out);
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key.GetPubKey(pubkeyChild, true);
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std::vector<unsigned char> pubkey;
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key.GetPubKey(pubkey, true);
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pubkeyChild.Set(pubkey.begin(), pubkey.end());
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#endif
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return ret;
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}
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