// Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2011 The Bitcoin developers
+// 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_KEY_H
#define BITCOIN_KEY_H
#include <stdexcept>
#include <vector>
-#include <openssl/ec.h>
-#include <openssl/ecdsa.h>
-#include <openssl/obj_mac.h>
-
+#include "allocators.h"
#include "serialize.h"
#include "uint256.h"
-#include "base58.h"
+#include "hash.h"
+#include "bignum.h"
+#include "ies.h"
+
+#include <openssl/ec.h> // for EC_KEY definition
// secp160k1
// const unsigned int PRIVATE_KEY_SIZE = 192;
// see www.keylength.com
// script supports up to 75 for single byte push
-// Generate a private key from just the secret parameter
-int static inline EC_KEY_regenerate_key(EC_KEY *eckey, BIGNUM *priv_key)
-{
- int ok = 0;
- BN_CTX *ctx = NULL;
- EC_POINT *pub_key = NULL;
-
- if (!eckey) return 0;
-
- const EC_GROUP *group = EC_KEY_get0_group(eckey);
-
- if ((ctx = BN_CTX_new()) == NULL)
- goto err;
-
- pub_key = EC_POINT_new(group);
-
- if (pub_key == NULL)
- goto err;
-
- if (!EC_POINT_mul(group, pub_key, priv_key, NULL, NULL, ctx))
- goto err;
-
- EC_KEY_set_private_key(eckey,priv_key);
- EC_KEY_set_public_key(eckey,pub_key);
-
- ok = 1;
-
-err:
-
- if (pub_key)
- EC_POINT_free(pub_key);
- if (ctx != NULL)
- BN_CTX_free(ctx);
-
- return(ok);
-}
-
-// Perform ECDSA key recovery (see SEC1 4.1.6) for curves over (mod p)-fields
-// recid selects which key is recovered
-// if check is nonzero, additional checks are performed
-int static inline ECDSA_SIG_recover_key_GFp(EC_KEY *eckey, ECDSA_SIG *ecsig, const unsigned char *msg, int msglen, int recid, int check)
-{
- if (!eckey) return 0;
-
- int ret = 0;
- BN_CTX *ctx = NULL;
-
- BIGNUM *x = NULL;
- BIGNUM *e = NULL;
- BIGNUM *order = NULL;
- BIGNUM *sor = NULL;
- BIGNUM *eor = NULL;
- BIGNUM *field = NULL;
- EC_POINT *R = NULL;
- EC_POINT *O = NULL;
- EC_POINT *Q = NULL;
- BIGNUM *rr = NULL;
- BIGNUM *zero = NULL;
- int n = 0;
- int i = recid / 2;
-
- const EC_GROUP *group = EC_KEY_get0_group(eckey);
- if ((ctx = BN_CTX_new()) == NULL) { ret = -1; goto err; }
- BN_CTX_start(ctx);
- order = BN_CTX_get(ctx);
- if (!EC_GROUP_get_order(group, order, ctx)) { ret = -2; goto err; }
- x = BN_CTX_get(ctx);
- if (!BN_copy(x, order)) { ret=-1; goto err; }
- if (!BN_mul_word(x, i)) { ret=-1; goto err; }
- if (!BN_add(x, x, ecsig->r)) { ret=-1; goto err; }
- field = BN_CTX_get(ctx);
- if (!EC_GROUP_get_curve_GFp(group, field, NULL, NULL, ctx)) { ret=-2; goto err; }
- if (BN_cmp(x, field) >= 0) { ret=0; goto err; }
- if ((R = EC_POINT_new(group)) == NULL) { ret = -2; goto err; }
- if (!EC_POINT_set_compressed_coordinates_GFp(group, R, x, recid % 2, ctx)) { ret=0; goto err; }
- if (check)
- {
- if ((O = EC_POINT_new(group)) == NULL) { ret = -2; goto err; }
- if (!EC_POINT_mul(group, O, NULL, R, order, ctx)) { ret=-2; goto err; }
- if (!EC_POINT_is_at_infinity(group, O)) { ret = 0; goto err; }
- }
- if ((Q = EC_POINT_new(group)) == NULL) { ret = -2; goto err; }
- n = EC_GROUP_get_degree(group);
- e = BN_CTX_get(ctx);
- if (!BN_bin2bn(msg, msglen, e)) { ret=-1; goto err; }
- if (8*msglen > n) BN_rshift(e, e, 8-(n & 7));
- zero = BN_CTX_get(ctx);
- if (!BN_zero(zero)) { ret=-1; goto err; }
- if (!BN_mod_sub(e, zero, e, order, ctx)) { ret=-1; goto err; }
- rr = BN_CTX_get(ctx);
- if (!BN_mod_inverse(rr, ecsig->r, order, ctx)) { ret=-1; goto err; }
- sor = BN_CTX_get(ctx);
- if (!BN_mod_mul(sor, ecsig->s, rr, order, ctx)) { ret=-1; goto err; }
- eor = BN_CTX_get(ctx);
- if (!BN_mod_mul(eor, e, rr, order, ctx)) { ret=-1; goto err; }
- if (!EC_POINT_mul(group, Q, eor, R, sor, ctx)) { ret=-2; goto err; }
- if (!EC_KEY_set_public_key(eckey, Q)) { ret=-2; goto err; }
-
- ret = 1;
-
-err:
- if (ctx) {
- BN_CTX_end(ctx);
- BN_CTX_free(ctx);
- }
- if (R != NULL) EC_POINT_free(R);
- if (O != NULL) EC_POINT_free(O);
- if (Q != NULL) EC_POINT_free(Q);
- return ret;
-}
-
class key_error : public std::runtime_error
{
public:
explicit key_error(const std::string& str) : std::runtime_error(str) {}
};
+/** A reference to a CKey: the Hash160 of its serialized public key */
+class CKeyID : public uint160
+{
+public:
+ CKeyID() : uint160(0) { }
+ CKeyID(const uint160 &in) : uint160(in) { }
+};
-// secure_allocator is defined in serialize.h
-// CPrivKey is a serialized private key, with all parameters included (279 bytes)
-typedef std::vector<unsigned char, secure_allocator<unsigned char> > CPrivKey;
-// CSecret is a serialization of just the secret parameter (32 bytes)
-typedef std::vector<unsigned char, secure_allocator<unsigned char> > CSecret;
+/** A reference to a CScript: the Hash160 of its serialization (see script.h) */
+class CScriptID : public uint160
+{
+public:
+ CScriptID() : uint160(0) { }
+ CScriptID(const uint160 &in) : uint160(in) { }
+};
-class CKey
+/** An encapsulated OpenSSL Elliptic Curve key (public) */
+class CPubKey
{
-protected:
- EC_KEY* pkey;
- bool fSet;
+private:
-public:
- CKey()
+ /**
+ * Just store the serialized data.
+ * Its length can very cheaply be computed from the first byte.
+ */
+ unsigned char vbytes[65];
+
+ //! Compute the length of a pubkey with a given first byte.
+ unsigned int static GetLen(unsigned char chHeader)
{
- pkey = EC_KEY_new_by_curve_name(NID_secp256k1);
- if (pkey == NULL)
- throw key_error("CKey::CKey() : EC_KEY_new_by_curve_name failed");
- fSet = false;
+ if (chHeader == 2 || chHeader == 3)
+ return 33;
+ if (chHeader == 4 || chHeader == 6 || chHeader == 7)
+ return 65;
+ return 0;
}
- CKey(const CKey& b)
+ // Set this key data to be invalid
+ void Invalidate()
{
- pkey = EC_KEY_dup(b.pkey);
- if (pkey == NULL)
- throw key_error("CKey::CKey(const CKey&) : EC_KEY_dup failed");
- fSet = b.fSet;
+ vbytes[0] = 0xFF;
}
- CKey& operator=(const CKey& b)
+public:
+ // Construct an invalid public key.
+ CPubKey()
{
- if (!EC_KEY_copy(pkey, b.pkey))
- throw key_error("CKey::operator=(const CKey&) : EC_KEY_copy failed");
- fSet = b.fSet;
- return (*this);
+ Invalidate();
}
- ~CKey()
+ // Initialize a public key using begin/end iterators to byte data.
+ template <typename T>
+ void Set(const T pbegin, const T pend)
{
- EC_KEY_free(pkey);
+ int len = pend == pbegin ? 0 : GetLen(pbegin[0]);
+ if (len && len == (pend - pbegin))
+ memcpy(vbytes, (unsigned char*)&pbegin[0], len);
+ else
+ Invalidate();
}
- bool IsNull() const
+ void Set(const std::vector<unsigned char>& vch)
{
- return !fSet;
+ Set(vch.begin(), vch.end());
}
- void MakeNewKey()
+ template <typename T>
+ CPubKey(const T pbegin, const T pend)
{
- if (!EC_KEY_generate_key(pkey))
- throw key_error("CKey::MakeNewKey() : EC_KEY_generate_key failed");
- fSet = true;
+ Set(pbegin, pend);
}
- bool SetPrivKey(const CPrivKey& vchPrivKey)
+ CPubKey(const std::vector<unsigned char>& vch)
{
- const unsigned char* pbegin = &vchPrivKey[0];
- if (!d2i_ECPrivateKey(&pkey, &pbegin, vchPrivKey.size()))
- return false;
- fSet = true;
- return true;
+ Set(vch.begin(), vch.end());
}
- bool SetSecret(const CSecret& vchSecret)
+ // Read-only vector-like interface to the data.
+ unsigned int size() const { return GetLen(vbytes[0]); }
+ const unsigned char* begin() const { return vbytes; }
+ const unsigned char* end() const { return vbytes + size(); }
+ const unsigned char& operator[](unsigned int pos) const { return vbytes[pos]; }
+
+ friend bool operator==(const CPubKey& a, const CPubKey& b) { return a.vbytes[0] == b.vbytes[0] && memcmp(a.vbytes, b.vbytes, a.size()) == 0; }
+ friend bool operator!=(const CPubKey& a, const CPubKey& b) { return !(a == b); }
+ friend bool operator<(const CPubKey& a, const CPubKey& b) { return a.vbytes[0] < b.vbytes[0] || (a.vbytes[0] == b.vbytes[0] && memcmp(a.vbytes, b.vbytes, a.size()) < 0); }
+
+ //! Implement serialization, as if this was a byte vector.
+ unsigned int GetSerializeSize(int nType, int nVersion) const
{
- EC_KEY_free(pkey);
- pkey = EC_KEY_new_by_curve_name(NID_secp256k1);
- if (pkey == NULL)
- throw key_error("CKey::SetSecret() : EC_KEY_new_by_curve_name failed");
- if (vchSecret.size() != 32)
- throw key_error("CKey::SetSecret() : secret must be 32 bytes");
- BIGNUM *bn = BN_bin2bn(&vchSecret[0],32,BN_new());
- if (bn == NULL)
- throw key_error("CKey::SetSecret() : BN_bin2bn failed");
- if (!EC_KEY_regenerate_key(pkey,bn))
- throw key_error("CKey::SetSecret() : EC_KEY_regenerate_key failed");
- BN_clear_free(bn);
- fSet = true;
- return true;
+ return size() + 1;
+ }
+ template <typename Stream>
+ void Serialize(Stream& s, int nType, int nVersion) const
+ {
+ unsigned int len = size();
+ ::WriteCompactSize(s, len);
+ s.write((char*)vbytes, len);
+ }
+ template <typename Stream>
+ void Unserialize(Stream& s, int nType, int nVersion)
+ {
+ unsigned int len = ::ReadCompactSize(s);
+ if (len <= 65) {
+ s.read((char*)vbytes, len);
+ } else {
+ // invalid pubkey, skip available data
+ char dummy;
+ while (len--)
+ s.read(&dummy, 1);
+ Invalidate();
+ }
}
- CSecret GetSecret() const
+ CKeyID GetID() const
{
- CSecret vchRet;
- vchRet.resize(32);
- const BIGNUM *bn = EC_KEY_get0_private_key(pkey);
- int nBytes = BN_num_bytes(bn);
- if (bn == NULL)
- throw key_error("CKey::GetSecret() : EC_KEY_get0_private_key failed");
- int n=BN_bn2bin(bn,&vchRet[32 - nBytes]);
- if (n != nBytes)
- throw key_error("CKey::GetSecret(): BN_bn2bin failed");
- return vchRet;
+ return CKeyID(Hash160(vbytes, vbytes + size()));
}
- CPrivKey GetPrivKey() const
+ uint256 GetHash() const
{
- unsigned int nSize = i2d_ECPrivateKey(pkey, NULL);
- if (!nSize)
- throw key_error("CKey::GetPrivKey() : i2d_ECPrivateKey failed");
- CPrivKey vchPrivKey(nSize, 0);
- unsigned char* pbegin = &vchPrivKey[0];
- if (i2d_ECPrivateKey(pkey, &pbegin) != nSize)
- throw key_error("CKey::GetPrivKey() : i2d_ECPrivateKey returned unexpected size");
- return vchPrivKey;
+ return Hash(vbytes, vbytes + size());
}
- bool SetPubKey(const std::vector<unsigned char>& vchPubKey)
+ /*
+ * Check syntactic correctness.
+ *
+ * Note that this is consensus critical as CheckSig() calls it!
+ */
+ bool IsValid() const
{
- const unsigned char* pbegin = &vchPubKey[0];
- if (!o2i_ECPublicKey(&pkey, &pbegin, vchPubKey.size()))
- return false;
- fSet = true;
- return true;
+ return size() > 0;
}
- std::vector<unsigned char> GetPubKey() const
+ //! fully validate whether this is a valid public key (more expensive than IsValid())
+ bool IsFullyValid() const
{
- unsigned int nSize = i2o_ECPublicKey(pkey, NULL);
- if (!nSize)
- throw key_error("CKey::GetPubKey() : i2o_ECPublicKey failed");
- std::vector<unsigned char> vchPubKey(nSize, 0);
- unsigned char* pbegin = &vchPubKey[0];
- if (i2o_ECPublicKey(pkey, &pbegin) != nSize)
- throw key_error("CKey::GetPubKey() : i2o_ECPublicKey returned unexpected size");
- return vchPubKey;
+ const unsigned char* pbegin = &vbytes[0];
+ EC_KEY *pkey = EC_KEY_new_by_curve_name(NID_secp256k1);
+ if (o2i_ECPublicKey(&pkey, &pbegin, size()))
+ {
+ EC_KEY_free(pkey);
+ return true;
+ }
+ return false;
}
- bool Sign(uint256 hash, std::vector<unsigned char>& vchSig)
+ //! Check whether this is a compressed public key.
+ bool IsCompressed() const
{
- vchSig.clear();
- unsigned char pchSig[10000];
- unsigned int nSize = 0;
- if (!ECDSA_sign(0, (unsigned char*)&hash, sizeof(hash), pchSig, &nSize, pkey))
- return false;
- vchSig.resize(nSize);
- memcpy(&vchSig[0], pchSig, nSize);
- return true;
+ return size() == 33;
}
+ bool Verify(const uint256& hash, const std::vector<unsigned char>& vchSig) const;
+ bool VerifyCompact(uint256 hash, const std::vector<unsigned char>& vchSig);
+
+ bool SetCompactSignature(uint256 hash, const std::vector<unsigned char>& vchSig);
+
+ // Reserialize to DER
+ static bool ReserealizeSignature(std::vector<unsigned char>& vchSig);
+
+ // Encrypt data
+ void EncryptData(const std::vector<unsigned char>& data, std::vector<unsigned char>& encrypted);
+};
+
+// secure_allocator is defined in allocators.h
+// CPrivKey is a serialized private key, with all parameters included (279 bytes)
+typedef std::vector<unsigned char, secure_allocator<unsigned char> > CPrivKey;
+// CSecret is a serialization of just the secret parameter (32 bytes)
+typedef std::vector<unsigned char, secure_allocator<unsigned char> > CSecret;
+
+/** An encapsulated OpenSSL Elliptic Curve key (private) */
+class CKey
+{
+protected:
+ EC_KEY* pkey;
+ bool fSet;
+
+public:
+
+ void Reset();
+
+ CKey();
+ CKey(const CKey& b);
+ CKey(const CSecret& b, bool fCompressed=true);
+
+ CKey& operator=(const CKey& b);
+
+ ~CKey();
+
+ bool IsNull() const;
+ bool IsCompressed() const;
+
+ void SetCompressedPubKey(bool fCompressed=true);
+ void MakeNewKey(bool fCompressed=true);
+ bool SetPrivKey(const CPrivKey& vchPrivKey);
+ bool SetSecret(const CSecret& vchSecret, bool fCompressed = true);
+ CSecret GetSecret(bool &fCompressed) const;
+ CSecret GetSecret() const;
+ CPrivKey GetPrivKey() const;
+ CPubKey GetPubKey() const;
+ bool WritePEM(BIO *streamObj, const SecureString &strPassKey) const;
+
+ bool Sign(uint256 hash, std::vector<unsigned char>& vchSig);
+
// create a compact signature (65 bytes), which allows reconstructing the used public key
// The format is one header byte, followed by two times 32 bytes for the serialized r and s values.
// The header byte: 0x1B = first key with even y, 0x1C = first key with odd y,
// 0x1D = second key with even y, 0x1E = second key with odd y
- bool SignCompact(uint256 hash, std::vector<unsigned char>& vchSig)
+ bool SignCompact(uint256 hash, std::vector<unsigned char>& vchSig);
+
+ bool IsValid();
+
+ // Check whether an element of a signature (r or s) is valid.
+ static bool CheckSignatureElement(const unsigned char *vch, int len, bool half);
+
+ // Decrypt data
+ void DecryptData(const std::vector<unsigned char>& encrypted, std::vector<unsigned char>& data);
+};
+
+class CPoint
+{
+private:
+ EC_POINT *point;
+ EC_GROUP* group;
+ BN_CTX* ctx;
+
+public:
+ CPoint();
+ bool operator!=(const CPoint &a);
+ ~CPoint();
+
+ // Initialize from octets stream
+ bool setBytes(const std::vector<unsigned char> &vchBytes);
+
+ // Initialize from pubkey
+ bool setPubKey(const CPubKey &vchPubKey);
+
+ // Serialize to octets stream
+ bool getBytes(std::vector<unsigned char> &vchBytes);
+
+ // ECC multiplication by specified multiplier
+ bool ECMUL(const CBigNum &bnMultiplier);
+
+ // Calculate G*m + q
+ bool ECMULGEN(const CBigNum &bnMultiplier, const CPoint &qPoint);
+
+ bool IsInfinity() { return EC_POINT_is_at_infinity(group, point) != 0; }
+};
+
+class CMalleablePubKey
+{
+private:
+ CPubKey pubKeyL;
+ CPubKey pubKeyH;
+ friend class CMalleableKey;
+
+ static const unsigned char CURRENT_VERSION = 1;
+
+public:
+ CMalleablePubKey() { }
+ CMalleablePubKey(const CMalleablePubKey& mpk)
{
- bool fOk = false;
- ECDSA_SIG *sig = ECDSA_do_sign((unsigned char*)&hash, sizeof(hash), pkey);
- if (sig==NULL)
- return false;
- vchSig.clear();
- vchSig.resize(65,0);
- int nBitsR = BN_num_bits(sig->r);
- int nBitsS = BN_num_bits(sig->s);
- if (nBitsR <= 256 && nBitsS <= 256)
- {
- int nRecId = -1;
- for (int i=0; i<4; i++)
- {
- CKey keyRec;
- keyRec.fSet = true;
- if (ECDSA_SIG_recover_key_GFp(keyRec.pkey, sig, (unsigned char*)&hash, sizeof(hash), i, 1) == 1)
- if (keyRec.GetPubKey() == this->GetPubKey())
- {
- nRecId = i;
- break;
- }
- }
-
- if (nRecId == -1)
- throw key_error("CKey::SignCompact() : unable to construct recoverable key");
-
- vchSig[0] = nRecId+27;
- BN_bn2bin(sig->r,&vchSig[33-(nBitsR+7)/8]);
- BN_bn2bin(sig->s,&vchSig[65-(nBitsS+7)/8]);
- fOk = true;
- }
- ECDSA_SIG_free(sig);
- return fOk;
+ pubKeyL = mpk.pubKeyL;
+ pubKeyH = mpk.pubKeyH;
}
+ CMalleablePubKey(const std::vector<unsigned char> &vchPubKeyPair) { setvch(vchPubKeyPair); }
+ CMalleablePubKey(const std::string& strMalleablePubKey) { SetString(strMalleablePubKey); }
+ CMalleablePubKey(const CPubKey &pubKeyInL, const CPubKey &pubKeyInH) : pubKeyL(pubKeyInL), pubKeyH(pubKeyInH) { }
- // reconstruct public key from a compact signature
- // This is only slightly more CPU intensive than just verifying it.
- // If this function succeeds, the recovered public key is guaranteed to be valid
- // (the signature is a valid signature of the given data for that key)
- bool SetCompactSignature(uint256 hash, const std::vector<unsigned char>& vchSig)
- {
- if (vchSig.size() != 65)
- return false;
- if (vchSig[0]<27 || vchSig[0]>=31)
- return false;
- ECDSA_SIG *sig = ECDSA_SIG_new();
- BN_bin2bn(&vchSig[1],32,sig->r);
- BN_bin2bn(&vchSig[33],32,sig->s);
-
- EC_KEY_free(pkey);
- pkey = EC_KEY_new_by_curve_name(NID_secp256k1);
- if (ECDSA_SIG_recover_key_GFp(pkey, sig, (unsigned char*)&hash, sizeof(hash), vchSig[0] - 27, 0) == 1)
- {
- fSet = true;
- ECDSA_SIG_free(sig);
- return true;
- }
- return false;
+ IMPLEMENT_SERIALIZE(
+ READWRITE(pubKeyL);
+ READWRITE(pubKeyH);
+ )
+
+ bool IsValid() const {
+ return pubKeyL.IsValid() && pubKeyH.IsValid();
}
- bool Verify(uint256 hash, const std::vector<unsigned char>& vchSig)
- {
- // -1 = error, 0 = bad sig, 1 = good
- if (ECDSA_verify(0, (unsigned char*)&hash, sizeof(hash), &vchSig[0], vchSig.size(), pkey) != 1)
- return false;
- return true;
+ bool operator==(const CMalleablePubKey &b);
+ bool operator!=(const CMalleablePubKey &b) { return !(*this == b); }
+ CMalleablePubKey& operator=(const CMalleablePubKey& mpk) {
+ pubKeyL = mpk.pubKeyL;
+ pubKeyH = mpk.pubKeyH;
+ return *this;
}
- // Verify a compact signature
- bool VerifyCompact(uint256 hash, const std::vector<unsigned char>& vchSig)
- {
- CKey key;
- if (!key.SetCompactSignature(hash, vchSig))
- return false;
- if (GetPubKey() != key.GetPubKey())
- return false;
- return true;
+ std::string ToString() const;
+ bool SetString(const std::string& strMalleablePubKey);
+
+ CKeyID GetID() const {
+ return pubKeyL.GetID();
}
- // Get the address corresponding to this key
- CBitcoinAddress GetAddress() const
- {
- return CBitcoinAddress(GetPubKey());
+ bool setvch(const std::vector<unsigned char> &vchPubKeyPair);
+ std::vector<unsigned char> Raw() const;
+
+ CPubKey& GetL() { return pubKeyL; }
+ CPubKey& GetH() { return pubKeyH; }
+ void GetVariant(CPubKey &R, CPubKey &vchPubKeyVariant);
+};
+
+class CMalleableKey
+{
+private:
+ CSecret vchSecretL;
+ CSecret vchSecretH;
+
+ friend class CMalleableKeyView;
+
+public:
+ CMalleableKey();
+ CMalleableKey(const CMalleableKey &b);
+ CMalleableKey(const CSecret &L, const CSecret &H);
+ ~CMalleableKey();
+
+ IMPLEMENT_SERIALIZE(
+ READWRITE(vchSecretL);
+ READWRITE(vchSecretH);
+ )
+
+ std::string ToString() const;
+ bool SetString(const std::string& strMalleablePubKey);
+ std::vector<unsigned char> Raw() const;
+ CMalleableKey& operator=(const CMalleableKey& mk) {
+ vchSecretL = mk.vchSecretL;
+ vchSecretH = mk.vchSecretH;
+ return *this;
}
- bool IsValid()
- {
- if (!fSet)
- return false;
+ void Reset();
+ void MakeNewKeys();
+ bool IsNull() const;
+ bool IsValid() const { return !IsNull() && GetMalleablePubKey().IsValid(); }
+ bool SetSecrets(const CSecret &pvchSecretL, const CSecret &pvchSecretH);
+
+ CSecret GetSecretL() const { return vchSecretL; }
+ CSecret GetSecretH() const { return vchSecretH; }
- CSecret secret = GetSecret();
- CKey key2;
- key2.SetSecret(secret);
- return GetPubKey() == key2.GetPubKey();
+ CKeyID GetID() const {
+ return GetMalleablePubKey().GetID();
}
+ CMalleablePubKey GetMalleablePubKey() const;
+ bool CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVariant) const;
+ bool CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVariant, CKey &privKeyVariant) const;
+};
+
+class CMalleableKeyView
+{
+private:
+ CSecret vchSecretL;
+ CPubKey vchPubKeyH;
+
+public:
+ CMalleableKeyView() { };
+ CMalleableKeyView(const CMalleableKey &b);
+ CMalleableKeyView(const std::string &strMalleableKey);
+
+ CMalleableKeyView(const CMalleableKeyView &b);
+ CMalleableKeyView& operator=(const CMalleableKey &b);
+ ~CMalleableKeyView();
+
+ IMPLEMENT_SERIALIZE(
+ READWRITE(vchSecretL);
+ READWRITE(vchPubKeyH);
+ )
+
+ bool IsValid() const;
+ std::string ToString() const;
+ bool SetString(const std::string& strMalleablePubKey);
+ std::vector<unsigned char> Raw() const;
+ CMalleableKeyView& operator=(const CMalleableKeyView& mkv) {
+ vchSecretL = mkv.vchSecretL;
+ vchPubKeyH = mkv.vchPubKeyH;
+ return *this;
+ }
+
+ CKeyID GetID() const {
+ return GetMalleablePubKey().GetID();
+ }
+ CMalleablePubKey GetMalleablePubKey() const;
+ CMalleableKey GetMalleableKey(const CSecret &vchSecretH) const { return CMalleableKey(vchSecretL, vchSecretH); }
+ bool CheckKeyVariant(const CPubKey &R, const CPubKey &vchPubKeyVariant) const;
+
+ bool operator <(const CMalleableKeyView& kv) const { return vchPubKeyH.GetID() < kv.vchPubKeyH.GetID(); }
};
#endif
git://git.novaco.in / novacoin.git / blobdiff