// Copyright (c) 2009-2010 Satoshi Nakamoto
// 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.
//
// could be used to create visually identical looking account numbers.
// - A string with non-alphanumeric characters is not as easily accepted as an account number.
// - E-mail usually won't line-break if there's no punctuation to break at.
-// - Doubleclicking selects the whole number as one word if it's all alphanumeric.
+// - Double-clicking selects the whole number as one word if it's all alphanumeric.
//
#ifndef BITCOIN_BASE58_H
#define BITCOIN_BASE58_H
#include <string>
#include <vector>
+#include <openssl/crypto.h> // for OPENSSL_cleanse()
#include "bignum.h"
#include "key.h"
-
-static const char* pszBase58 = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
+#include "script.h"
// Encode a byte sequence as a base58-encoded string
-inline std::string EncodeBase58(const unsigned char* pbegin, const unsigned char* pend)
-{
- CAutoBN_CTX pctx;
- CBigNum bn58 = 58;
- CBigNum bn0 = 0;
-
- // Convert big endian data to little endian
- // Extra zero at the end make sure bignum will interpret as a positive number
- std::vector<unsigned char> vchTmp(pend-pbegin+1, 0);
- reverse_copy(pbegin, pend, vchTmp.begin());
-
- // Convert little endian data to bignum
- CBigNum bn;
- bn.setvch(vchTmp);
-
- // Convert bignum to std::string
- std::string str;
- // Expected size increase from base58 conversion is approximately 137%
- // use 138% to be safe
- str.reserve((pend - pbegin) * 138 / 100 + 1);
- CBigNum dv;
- CBigNum rem;
- while (bn > bn0)
- {
- if (!BN_div(&dv, &rem, &bn, &bn58, pctx))
- throw bignum_error("EncodeBase58 : BN_div failed");
- bn = dv;
- unsigned int c = rem.getulong();
- str += pszBase58[c];
- }
-
- // Leading zeroes encoded as base58 zeros
- for (const unsigned char* p = pbegin; p < pend && *p == 0; p++)
- str += pszBase58[0];
-
- // Convert little endian std::string to big endian
- reverse(str.begin(), str.end());
- return str;
-}
+std::string EncodeBase58(const unsigned char* pbegin, const unsigned char* pend);
// Encode a byte vector as a base58-encoded string
-inline std::string EncodeBase58(const std::vector<unsigned char>& vch)
-{
- return EncodeBase58(&vch[0], &vch[0] + vch.size());
-}
+std::string EncodeBase58(const std::vector<unsigned char>& vch);
// Decode a base58-encoded string psz into byte vector vchRet
-// returns true if decoding is succesful
-inline bool DecodeBase58(const char* psz, std::vector<unsigned char>& vchRet)
-{
- CAutoBN_CTX pctx;
- vchRet.clear();
- CBigNum bn58 = 58;
- CBigNum bn = 0;
- CBigNum bnChar;
- while (isspace(*psz))
- psz++;
-
- // Convert big endian string to bignum
- for (const char* p = psz; *p; p++)
- {
- const char* p1 = strchr(pszBase58, *p);
- if (p1 == NULL)
- {
- while (isspace(*p))
- p++;
- if (*p != '\0')
- return false;
- break;
- }
- bnChar.setulong(p1 - pszBase58);
- if (!BN_mul(&bn, &bn, &bn58, pctx))
- throw bignum_error("DecodeBase58 : BN_mul failed");
- bn += bnChar;
- }
-
- // Get bignum as little endian data
- std::vector<unsigned char> vchTmp = bn.getvch();
-
- // Trim off sign byte if present
- if (vchTmp.size() >= 2 && vchTmp.end()[-1] == 0 && vchTmp.end()[-2] >= 0x80)
- vchTmp.erase(vchTmp.end()-1);
-
- // Restore leading zeros
- int nLeadingZeros = 0;
- for (const char* p = psz; *p == pszBase58[0]; p++)
- nLeadingZeros++;
- vchRet.assign(nLeadingZeros + vchTmp.size(), 0);
-
- // Convert little endian data to big endian
- reverse_copy(vchTmp.begin(), vchTmp.end(), vchRet.end() - vchTmp.size());
- return true;
-}
+// returns true if decoding is successful
+bool DecodeBase58(const char* psz, std::vector<unsigned char>& vchRet);
// Decode a base58-encoded string str into byte vector vchRet
-// returns true if decoding is succesful
-inline bool DecodeBase58(const std::string& str, std::vector<unsigned char>& vchRet)
-{
- return DecodeBase58(str.c_str(), vchRet);
-}
-
-
-
+// returns true if decoding is successful
+bool DecodeBase58(const std::string& str, std::vector<unsigned char>& vchRet);
// Encode a byte vector to a base58-encoded string, including checksum
-inline std::string EncodeBase58Check(const std::vector<unsigned char>& vchIn)
-{
- // add 4-byte hash check to the end
- std::vector<unsigned char> vch(vchIn);
- uint256 hash = Hash(vch.begin(), vch.end());
- vch.insert(vch.end(), (unsigned char*)&hash, (unsigned char*)&hash + 4);
- return EncodeBase58(vch);
-}
+std::string EncodeBase58Check(const std::vector<unsigned char>& vchIn);
// Decode a base58-encoded string psz that includes a checksum, into byte vector vchRet
-// returns true if decoding is succesful
-inline bool DecodeBase58Check(const char* psz, std::vector<unsigned char>& vchRet)
-{
- if (!DecodeBase58(psz, vchRet))
- return false;
- if (vchRet.size() < 4)
- {
- vchRet.clear();
- return false;
- }
- uint256 hash = Hash(vchRet.begin(), vchRet.end()-4);
- if (memcmp(&hash, &vchRet.end()[-4], 4) != 0)
- {
- vchRet.clear();
- return false;
- }
- vchRet.resize(vchRet.size()-4);
- return true;
-}
+// returns true if decoding is successful
+bool DecodeBase58Check(const char* psz, std::vector<unsigned char>& vchRet);
// Decode a base58-encoded string str that includes a checksum, into byte vector vchRet
-// returns true if decoding is succesful
-inline bool DecodeBase58Check(const std::string& str, std::vector<unsigned char>& vchRet)
-{
- return DecodeBase58Check(str.c_str(), vchRet);
-}
-
-
-
-
+// returns true if decoding is successful
+bool DecodeBase58Check(const std::string& str, std::vector<unsigned char>& vchRet);
/** Base class for all base58-encoded data */
class CBase58Data
// the actually encoded data
std::vector<unsigned char> vchData;
- CBase58Data()
- {
- nVersion = 0;
- vchData.clear();
- }
+ CBase58Data();
+ ~CBase58Data();
- ~CBase58Data()
- {
- // zero the memory, as it may contain sensitive data
- if (!vchData.empty())
- memset(&vchData[0], 0, vchData.size());
- }
-
- void SetData(int nVersionIn, const void* pdata, size_t nSize)
- {
- nVersion = nVersionIn;
- vchData.resize(nSize);
- if (!vchData.empty())
- memcpy(&vchData[0], pdata, nSize);
- }
-
- void SetData(int nVersionIn, const unsigned char *pbegin, const unsigned char *pend)
- {
- SetData(nVersionIn, (void*)pbegin, pend - pbegin);
- }
+ void SetData(int nVersionIn, const void* pdata, size_t nSize);
+ void SetData(int nVersionIn, const unsigned char *pbegin, const unsigned char *pend);
public:
- bool SetString(const char* psz)
- {
- std::vector<unsigned char> vchTemp;
- DecodeBase58Check(psz, vchTemp);
- if (vchTemp.empty())
- {
- vchData.clear();
- nVersion = 0;
- return false;
- }
- nVersion = vchTemp[0];
- vchData.resize(vchTemp.size() - 1);
- if (!vchData.empty())
- memcpy(&vchData[0], &vchTemp[1], vchData.size());
- memset(&vchTemp[0], 0, vchTemp.size());
- return true;
- }
-
- bool SetString(const std::string& str)
- {
- return SetString(str.c_str());
- }
-
- std::string ToString() const
- {
- std::vector<unsigned char> vch(1, nVersion);
- vch.insert(vch.end(), vchData.begin(), vchData.end());
- return EncodeBase58Check(vch);
- }
-
- int CompareTo(const CBase58Data& b58) const
- {
- if (nVersion < b58.nVersion) return -1;
- if (nVersion > b58.nVersion) return 1;
- if (vchData < b58.vchData) return -1;
- if (vchData > b58.vchData) return 1;
- return 0;
- }
+ bool SetString(const char* psz);
+ bool SetString(const std::string& str);
+ std::string ToString() const;
+ const std::vector<unsigned char> &GetData() const;
+ int CompareTo(const CBase58Data& b58) const;
bool operator==(const CBase58Data& b58) const { return CompareTo(b58) == 0; }
bool operator<=(const CBase58Data& b58) const { return CompareTo(b58) <= 0; }
bool operator>=(const CBase58Data& b58) const { return CompareTo(b58) >= 0; }
bool operator> (const CBase58Data& b58) const { return CompareTo(b58) > 0; }
};
-/** base58-encoded bitcoin addresses.
+/** base58-encoded Bitcoin addresses.
* Public-key-hash-addresses have version 0 (or 111 testnet).
* The data vector contains RIPEMD160(SHA256(pubkey)), where pubkey is the serialized public key.
* Script-hash-addresses have version 5 (or 196 testnet).
* The data vector contains RIPEMD160(SHA256(cscript)), where cscript is the serialized redemption script.
+ * Pubkey-pair-addresses have version 1 (or 6 testnet)
+ * The data vector contains a serialized copy of two compressed ECDSA secp256k1 public keys.
*/
+class CBitcoinAddress;
+class CBitcoinAddressVisitor : public boost::static_visitor<bool>
+{
+private:
+ CBitcoinAddress *addr;
+public:
+ CBitcoinAddressVisitor(CBitcoinAddress *addrIn) : addr(addrIn) { }
+ bool operator()(const CKeyID &id) const;
+ bool operator()(const CScriptID &id) const;
+ bool operator()(const CMalleablePubKey &mpk) const;
+ bool operator()(const CNoDestination &no) const;
+};
+
class CBitcoinAddress : public CBase58Data
{
public:
enum
{
- PUBKEY_ADDRESS = 0,
- SCRIPT_ADDRESS = 5,
+ PUBKEY_PAIR_ADDRESS = 1,
+ PUBKEY_ADDRESS = 8,
+ SCRIPT_ADDRESS = 20,
+ PUBKEY_PAIR_ADDRESS_TEST = 6,
PUBKEY_ADDRESS_TEST = 111,
- SCRIPT_ADDRESS_TEST = 196,
+ SCRIPT_ADDRESS_TEST = 196
};
- bool SetHash160(const uint160& hash160)
- {
- SetData(fTestNet ? PUBKEY_ADDRESS_TEST : PUBKEY_ADDRESS, &hash160, 20);
- return true;
- }
-
- void SetPubKey(const std::vector<unsigned char>& vchPubKey)
- {
- SetHash160(Hash160(vchPubKey));
- }
-
- bool SetScriptHash160(const uint160& hash160)
- {
- SetData(fTestNet ? SCRIPT_ADDRESS_TEST : SCRIPT_ADDRESS, &hash160, 20);
- return true;
- }
-
- bool IsValid() const
- {
- unsigned int nExpectedSize = 20;
- bool fExpectTestNet = false;
- switch(nVersion)
- {
- case PUBKEY_ADDRESS:
- nExpectedSize = 20; // Hash of public key
- fExpectTestNet = false;
- break;
- case SCRIPT_ADDRESS:
- nExpectedSize = 20; // Hash of CScript
- fExpectTestNet = false;
- break;
-
- case PUBKEY_ADDRESS_TEST:
- nExpectedSize = 20;
- fExpectTestNet = true;
- break;
- case SCRIPT_ADDRESS_TEST:
- nExpectedSize = 20;
- fExpectTestNet = true;
- break;
-
- default:
- return false;
- }
- return fExpectTestNet == fTestNet && vchData.size() == nExpectedSize;
- }
- bool IsScript() const
- {
- if (!IsValid())
- return false;
- if (fTestNet)
- return nVersion == SCRIPT_ADDRESS_TEST;
- return nVersion == SCRIPT_ADDRESS;
- }
+ bool Set(const CKeyID &id);
+ bool Set(const CScriptID &id);
+ bool Set(const CTxDestination &dest);
+ bool Set(const CMalleablePubKey &mpk);
+ bool Set(const CBitcoinAddress &dest);
+ bool IsValid() const;
CBitcoinAddress()
{
}
- CBitcoinAddress(uint160 hash160In)
+ CBitcoinAddress(const CTxDestination &dest)
{
- SetHash160(hash160In);
+ Set(dest);
}
- CBitcoinAddress(const std::vector<unsigned char>& vchPubKey)
+ CBitcoinAddress(const CMalleablePubKey &mpk)
{
- SetPubKey(vchPubKey);
+ Set(mpk);
}
CBitcoinAddress(const std::string& strAddress)
SetString(pszAddress);
}
- uint160 GetHash160() const
- {
- assert(vchData.size() == 20);
- uint160 hash160;
- memcpy(&hash160, &vchData[0], 20);
- return hash160;
- }
+ CTxDestination Get() const;
+ bool GetKeyID(CKeyID &keyID) const;
+ bool IsScript() const;
+ bool IsPubKey() const;
+ bool IsPair() const;
};
+bool inline CBitcoinAddressVisitor::operator()(const CKeyID &id) const { return addr->Set(id); }
+bool inline CBitcoinAddressVisitor::operator()(const CScriptID &id) const { return addr->Set(id); }
+bool inline CBitcoinAddressVisitor::operator()(const CMalleablePubKey &mpk) const { return addr->Set(mpk); }
+bool inline CBitcoinAddressVisitor::operator()(const CNoDestination &id) const { return false; }
+
/** A base58-encoded secret key */
class CBitcoinSecret : public CBase58Data
{
public:
- void SetSecret(const CSecret& vchSecret, bool fCompressed)
- {
- assert(vchSecret.size() == 32);
- SetData(fTestNet ? 239 : 128, &vchSecret[0], vchSecret.size());
- if (fCompressed)
- vchData.push_back(1);
- }
-
- CSecret GetSecret(bool &fCompressedOut)
- {
- CSecret vchSecret;
- vchSecret.resize(32);
- memcpy(&vchSecret[0], &vchData[0], 32);
- fCompressedOut = vchData.size() == 33;
- return vchSecret;
- }
+ void SetSecret(const CSecret& vchSecret, bool fCompressed);
+ CSecret GetSecret(bool &fCompressedOut);
- bool IsValid() const
- {
- bool fExpectTestNet = false;
- switch(nVersion)
- {
- case 128:
- break;
+ bool IsValid() const;
- case 239:
- fExpectTestNet = true;
- break;
-
- default:
- return false;
- }
- return fExpectTestNet == fTestNet && (vchData.size() == 32 || (vchData.size() == 33 && vchData[32] == 1));
- }
-
- bool SetString(const char* pszSecret)
- {
- return CBase58Data::SetString(pszSecret) && IsValid();
- }
-
- bool SetString(const std::string& strSecret)
- {
- return SetString(strSecret.c_str());
- }
-
- CBitcoinSecret(const CSecret& vchSecret, bool fCompressed)
- {
- SetSecret(vchSecret, fCompressed);
- }
+ bool SetString(const char* pszSecret);
+ bool SetString(const std::string& strSecret);
+ CBitcoinSecret(const CSecret& vchSecret, bool fCompressed);
CBitcoinSecret()
{
}
git://git.novaco.in / novacoin.git / blobdiff