[VerusCoin.git] / src / base58.cpp

// Copyright (c) 2014 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include "base58.h"

#include <hash.h>
#include <uint256.h>

#include <assert.h>
#include <string.h>
#include <stdint.h>
#include <vector>
#include <string>
#include <boost/variant/apply_visitor.hpp>
#include <boost/variant/static_visitor.hpp>

/** All alphanumeric characters except for "0", "I", "O", and "l" */
static const char* pszBase58 = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";

bool DecodeBase58(const char* psz, std::vector<unsigned char>& vch)
{
    // Skip leading spaces.
    while (*psz && isspace(*psz))
        psz++;
    // Skip and count leading '1's.
    int zeroes = 0;
    while (*psz == '1') {
        zeroes++;
        psz++;
    }
    // Allocate enough space in big-endian base256 representation.
    std::vector<unsigned char> b256(strlen(psz) * 733 / 1000 + 1); // log(58) / log(256), rounded up.
    // Process the characters.
    while (*psz && !isspace(*psz)) {
        // Decode base58 character
        const char* ch = strchr(pszBase58, *psz);
        if (ch == NULL)
            return false;
        // Apply "b256 = b256 * 58 + ch".
        int carry = ch - pszBase58;
        for (std::vector<unsigned char>::reverse_iterator it = b256.rbegin(); it != b256.rend(); it++) {
            carry += 58 * (*it);
            *it = carry % 256;
            carry /= 256;
        }
        assert(carry == 0);
        psz++;
    }
    // Skip trailing spaces.
    while (isspace(*psz))
        psz++;
    if (*psz != 0)
        return false;
    // Skip leading zeroes in b256.
    std::vector<unsigned char>::iterator it = b256.begin();
    while (it != b256.end() && *it == 0)
        it++;
    // Copy result into output vector.
    vch.reserve(zeroes + (b256.end() - it));
    vch.assign(zeroes, 0x00);
    while (it != b256.end())
        vch.push_back(*(it++));
    return true;
}

std::string EncodeBase58(const unsigned char* pbegin, const unsigned char* pend)
{
    // Skip & count leading zeroes.
    int zeroes = 0;
    while (pbegin != pend && *pbegin == 0) {
        pbegin++;
        zeroes++;
    }
    // Allocate enough space in big-endian base58 representation.
    std::vector<unsigned char> b58((pend - pbegin) * 138 / 100 + 1); // log(256) / log(58), rounded up.
    // Process the bytes.
    while (pbegin != pend) {
        int carry = *pbegin;
        // Apply "b58 = b58 * 256 + ch".
        for (std::vector<unsigned char>::reverse_iterator it = b58.rbegin(); it != b58.rend(); it++) {
            carry += 256 * (*it);
            *it = carry % 58;
            carry /= 58;
        }
        assert(carry == 0);
        pbegin++;
    }
    // Skip leading zeroes in base58 result.
    std::vector<unsigned char>::iterator it = b58.begin();
    while (it != b58.end() && *it == 0)
        it++;
    // Translate the result into a string.
    std::string str;
    str.reserve(zeroes + (b58.end() - it));
    str.assign(zeroes, '1');
    while (it != b58.end())
        str += pszBase58[*(it++)];
    return str;
}

std::string EncodeBase58(const std::vector<unsigned char>& vch)
{
    return EncodeBase58(vch.data(), vch.data() + vch.size());
}

bool DecodeBase58(const std::string& str, std::vector<unsigned char>& vchRet)
{
    return DecodeBase58(str.c_str(), vchRet);
}

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);
}

bool DecodeBase58Check(const char* psz, std::vector<unsigned char>& vchRet)
{
    if (!DecodeBase58(psz, vchRet) ||
        (vchRet.size() < 4)) {
        vchRet.clear();
        return false;
    }
    // re-calculate the checksum, insure it matches the included 4-byte checksum
    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;
}

bool DecodeBase58Check(const std::string& str, std::vector<unsigned char>& vchRet)
{
    return DecodeBase58Check(str.c_str(), vchRet);
}


CBase58Data::CBase58Data()
{
    vchVersion.clear();
    vchData.clear();
}

void CBase58Data::SetData(const std::vector<unsigned char>& vchVersionIn, const void* pdata, size_t nSize)
{
    vchVersion = vchVersionIn;
    vchData.resize(nSize);
    if (!vchData.empty())
        memcpy(&vchData[0], pdata, nSize);
}

void CBase58Data::SetData(const std::vector<unsigned char>& vchVersionIn, const unsigned char* pbegin, const unsigned char* pend)
{
    SetData(vchVersionIn, (void*)pbegin, pend - pbegin);
}

bool CBase58Data::SetString(const char* psz, unsigned int nVersionBytes)
{
    std::vector<unsigned char> vchTemp;
    bool rc58 = DecodeBase58Check(psz, vchTemp);
    if ((!rc58) || (vchTemp.size() < nVersionBytes)) {
        vchData.clear();
        vchVersion.clear();
        return false;
    }
    vchVersion.assign(vchTemp.begin(), vchTemp.begin() + nVersionBytes);
    vchData.resize(vchTemp.size() - nVersionBytes);
    if (!vchData.empty())
        memcpy(&vchData[0], &vchTemp[nVersionBytes], vchData.size());
    memory_cleanse(&vchTemp[0], vchData.size());
    return true;
}

bool CBase58Data::SetString(const std::string& str, unsigned int nVersionBytes)
{
    return SetString(str.c_str(), nVersionBytes);
}

std::string CBase58Data::ToString() const
{
    std::vector<unsigned char> vch = vchVersion;
    vch.insert(vch.end(), vchData.begin(), vchData.end());
    return EncodeBase58Check(vch);
}

int CBase58Data::CompareTo(const CBase58Data& b58) const
{
    if (vchVersion < b58.vchVersion)
        return -1;
    if (vchVersion > b58.vchVersion)
        return 1;
    if (vchData < b58.vchData)
        return -1;
    if (vchData > b58.vchData)
        return 1;
    return 0;
}

namespace
{
class CBitcoinAddressVisitor : public boost::static_visitor<bool>
{
private:
    CBitcoinAddress* addr;

public:
    CBitcoinAddressVisitor(CBitcoinAddress* addrIn) : addr(addrIn) {}

    bool operator()(const CKeyID& id) const { return addr->Set(id); }
    bool operator()(const CScriptID& id) const { return addr->Set(id); }
    bool operator()(const CNoDestination& no) const { return false; }
};

} // anon namespace

bool CBitcoinAddress::Set(const CKeyID& id)
{
    SetData(Params().Base58Prefix(CChainParams::PUBKEY_ADDRESS), &id, 20);
    return true;
}

bool CBitcoinAddress::Set(const CScriptID& id)
{
    SetData(Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS), &id, 20);
    return true;
}

bool CBitcoinAddress::Set(const CTxDestination& dest)
{
    return boost::apply_visitor(CBitcoinAddressVisitor(this), dest);
}

bool CBitcoinAddress::IsValid() const
{
    return IsValid(Params());
}

bool CBitcoinAddress::IsValid(const CChainParams& params) const
{
    bool fCorrectSize = vchData.size() == 20;
    bool fKnownVersion = vchVersion == params.Base58Prefix(CChainParams::PUBKEY_ADDRESS) ||
                         vchVersion == params.Base58Prefix(CChainParams::SCRIPT_ADDRESS);
    return fCorrectSize && fKnownVersion;
}

bool CBitcoinAddress::SetString(const char* pszAddress)
{
    return CBase58Data::SetString(pszAddress, 1);//2);
}

bool CBitcoinAddress::SetString(const std::string& strAddress)
{
    return SetString(strAddress.c_str());
}

CTxDestination CBitcoinAddress::Get() const
{
    if (!IsValid())
        return CNoDestination();
    uint160 id;
    memcpy(&id, &vchData[0], 20);
    if (vchVersion == Params().Base58Prefix(CChainParams::PUBKEY_ADDRESS))
        return CKeyID(id);
    else if (vchVersion == Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS))
        return CScriptID(id);
    else
        return CNoDestination();
}

bool CBitcoinAddress::GetIndexKey(uint160& hashBytes, int& type) const
{
    if (!IsValid()) {
        return false;
    } else if (vchVersion == Params().Base58Prefix(CChainParams::PUBKEY_ADDRESS)) {
        memcpy(&hashBytes, &vchData[0], 20);
        type = 1;
        return true;
    } else if (vchVersion == Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS)) {
        memcpy(&hashBytes, &vchData[0], 20);
        type = 2;
        return true;
    }

    return false;
}

bool CBitcoinAddress::GetKeyID(CKeyID& keyID) const
{
    if (!IsValid() || vchVersion != Params().Base58Prefix(CChainParams::PUBKEY_ADDRESS))
        return false;
    uint160 id;
    memcpy(&id, &vchData[0], 20);
    keyID = CKeyID(id);
    return true;
}

bool CBitcoinAddress::GetKeyID_NoCheck(CKeyID& keyID) const
{
    uint160 id;
    memcpy(&id, &vchData[0], 20);
    keyID = CKeyID(id);
    return true;
}

bool CBitcoinAddress::IsScript() const
{
    return IsValid() && vchVersion == Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS);
}

void CBitcoinSecret::SetKey(const CKey& vchSecret)
{
    assert(vchSecret.IsValid());
    SetData(Params().Base58Prefix(CChainParams::SECRET_KEY), vchSecret.begin(), vchSecret.size());
    if (vchSecret.IsCompressed())
        vchData.push_back(1);
}

CKey CBitcoinSecret::GetKey()
{
    CKey ret;
    assert(vchData.size() >= 32);
    ret.Set(vchData.begin(), vchData.begin() + 32, vchData.size() > 32 && vchData[32] == 1);
    return ret;
}

bool CBitcoinSecret::IsValid() const
{
    bool fExpectedFormat = vchData.size() == 32 || (vchData.size() == 33 && vchData[32] == 1);
    bool fCorrectVersion = vchVersion == Params().Base58Prefix(CChainParams::SECRET_KEY);
    return fExpectedFormat && fCorrectVersion;
}

bool CBitcoinSecret::SetString(const char* pszSecret)
{
    return CBase58Data::SetString(pszSecret, 1) && IsValid();
}

bool CBitcoinSecret::SetString(const std::string& strSecret)
{
    return SetString(strSecret.c_str());
}

template<class DATA_TYPE, CChainParams::Base58Type PREFIX, size_t SER_SIZE>
bool CZCEncoding<DATA_TYPE, PREFIX, SER_SIZE>::Set(const DATA_TYPE& addr)
{
    CDataStream ss(SER_NETWORK, PROTOCOL_VERSION);
    ss << addr;
    std::vector<unsigned char> addrSerialized(ss.begin(), ss.end());
    assert(addrSerialized.size() == SER_SIZE);
    SetData(Params().Base58Prefix(PREFIX), &addrSerialized[0], SER_SIZE);
    return true;
}

template<class DATA_TYPE, CChainParams::Base58Type PREFIX, size_t SER_SIZE>
DATA_TYPE CZCEncoding<DATA_TYPE, PREFIX, SER_SIZE>::Get() const
{
    if (vchData.size() != SER_SIZE) {
        throw std::runtime_error(
            PrependName(" is invalid")
        );
    }

    if (vchVersion != Params().Base58Prefix(PREFIX)) {
        throw std::runtime_error(
            PrependName(" is for wrong network type")
        );
    }

    std::vector<unsigned char> serialized(vchData.begin(), vchData.end());

    CDataStream ss(serialized, SER_NETWORK, PROTOCOL_VERSION);
    DATA_TYPE ret;
    ss >> ret;
    return ret;
}
Commit	Line	Data
f914f1a7	1	// Copyright (c) 2014 The Bitcoin Core developers
fa94b9d5	2	// Distributed under the MIT software license, see the accompanying
b58be132 PW	3	// file COPYING or http://www.opensource.org/licenses/mit-license.php.
b58be132 PW	4
f6b7c644 PW	5	#include "base58.h"
f6b7c644 PW	6
3d31e09c PW	7	#include <hash.h>
3d31e09c PW	8	#include <uint256.h>
e104fcdd	9
b58be132	10	#include <assert.h>
b58be132	11	#include <string.h>
9feb4b9e	12	#include <stdint.h>
b58be132 PW	13	#include <vector>
b58be132 PW	14	#include <string>
f6b7c644 PW	15	#include <boost/variant/apply_visitor.hpp>
f6b7c644 PW	16	#include <boost/variant/static_visitor.hpp>
b58be132	17
fa94b9d5	18	/** All alphanumeric characters except for "0", "I", "O", and "l" */
b58be132 PW	19	static const char* pszBase58 = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
b58be132 PW	20
20e01b1a PW	21	bool DecodeBase58(const char* psz, std::vector<unsigned char>& vch)
20e01b1a PW	22	{
b58be132 PW	23	// Skip leading spaces.
	24	while (psz && isspace(psz))
	25	psz++;
	26	// Skip and count leading '1's.
	27	int zeroes = 0;
	28	while (*psz == '1') {
	29	zeroes++;
	30	psz++;
	31	}
	32	// Allocate enough space in big-endian base256 representation.
	33	std::vector<unsigned char> b256(strlen(psz) * 733 / 1000 + 1); // log(58) / log(256), rounded up.
	34	// Process the characters.
	35	while (psz && !isspace(psz)) {
	36	// Decode base58 character
20e01b1a	37	const char* ch = strchr(pszBase58, *psz);
b58be132 PW	38	if (ch == NULL)
	39	return false;
	40	// Apply "b256 = b256 * 58 + ch".
	41	int carry = ch - pszBase58;
	42	for (std::vector<unsigned char>::reverse_iterator it = b256.rbegin(); it != b256.rend(); it++) {
	43	carry += 58 * (*it);
	44	*it = carry % 256;
	45	carry /= 256;
	46	}
	47	assert(carry == 0);
	48	psz++;
	49	}
	50	// Skip trailing spaces.
	51	while (isspace(*psz))
	52	psz++;
	53	if (*psz != 0)
	54	return false;
	55	// Skip leading zeroes in b256.
	56	std::vector<unsigned char>::iterator it = b256.begin();
	57	while (it != b256.end() && *it == 0)
	58	it++;
	59	// Copy result into output vector.
	60	vch.reserve(zeroes + (b256.end() - it));
	61	vch.assign(zeroes, 0x00);
	62	while (it != b256.end())
20e01b1a	63	vch.push_back(*(it++));
b58be132 PW	64	return true;
	65	}
	66
20e01b1a PW	67	std::string EncodeBase58(const unsigned char* pbegin, const unsigned char* pend)
20e01b1a PW	68	{
b58be132 PW	69	// Skip & count leading zeroes.
	70	int zeroes = 0;
	71	while (pbegin != pend && *pbegin == 0) {
	72	pbegin++;
	73	zeroes++;
	74	}
	75	// Allocate enough space in big-endian base58 representation.
	76	std::vector<unsigned char> b58((pend - pbegin) * 138 / 100 + 1); // log(256) / log(58), rounded up.
	77	// Process the bytes.
	78	while (pbegin != pend) {
	79	int carry = *pbegin;
	80	// Apply "b58 = b58 * 256 + ch".
	81	for (std::vector<unsigned char>::reverse_iterator it = b58.rbegin(); it != b58.rend(); it++) {
	82	carry += 256 * (*it);
	83	*it = carry % 58;
	84	carry /= 58;
	85	}
	86	assert(carry == 0);
	87	pbegin++;
	88	}
	89	// Skip leading zeroes in base58 result.
	90	std::vector<unsigned char>::iterator it = b58.begin();
	91	while (it != b58.end() && *it == 0)
	92	it++;
	93	// Translate the result into a string.
	94	std::string str;
	95	str.reserve(zeroes + (b58.end() - it));
	96	str.assign(zeroes, '1');
	97	while (it != b58.end())
	98	str += pszBase58[*(it++)];
	99	return str;
	100	}
f6b7c644	101
20e01b1a PW	102	std::string EncodeBase58(const std::vector<unsigned char>& vch)
20e01b1a PW	103	{
1b34996b	104	return EncodeBase58(vch.data(), vch.data() + vch.size());
f6b7c644 PW	105	}
f6b7c644 PW	106
20e01b1a PW	107	bool DecodeBase58(const std::string& str, std::vector<unsigned char>& vchRet)
20e01b1a PW	108	{
f6b7c644 PW	109	return DecodeBase58(str.c_str(), vchRet);
	110	}
	111
20e01b1a PW	112	std::string EncodeBase58Check(const std::vector<unsigned char>& vchIn)
20e01b1a PW	113	{
f6b7c644 PW	114	// add 4-byte hash check to the end
	115	std::vector<unsigned char> vch(vchIn);
	116	uint256 hash = Hash(vch.begin(), vch.end());
	117	vch.insert(vch.end(), (unsigned char)&hash, (unsigned char)&hash + 4);
	118	return EncodeBase58(vch);
	119	}
	120
20e01b1a PW	121	bool DecodeBase58Check(const char* psz, std::vector<unsigned char>& vchRet)
20e01b1a PW	122	{
88df548d	123	if (!DecodeBase58(psz, vchRet) \|\|
20e01b1a	124	(vchRet.size() < 4)) {
f6b7c644 PW	125	vchRet.clear();
	126	return false;
	127	}
	128	// re-calculate the checksum, insure it matches the included 4-byte checksum
20e01b1a PW	129	uint256 hash = Hash(vchRet.begin(), vchRet.end() - 4);
20e01b1a PW	130	if (memcmp(&hash, &vchRet.end()[-4], 4) != 0) {
f6b7c644 PW	131	vchRet.clear();
	132	return false;
	133	}
20e01b1a	134	vchRet.resize(vchRet.size() - 4);
f6b7c644 PW	135	return true;
	136	}
	137
20e01b1a PW	138	bool DecodeBase58Check(const std::string& str, std::vector<unsigned char>& vchRet)
20e01b1a PW	139	{
f6b7c644 PW	140	return DecodeBase58Check(str.c_str(), vchRet);
	141	}
	142
9feb4b9e	143
20e01b1a PW	144	CBase58Data::CBase58Data()
20e01b1a PW	145	{
f6b7c644 PW	146	vchVersion.clear();
	147	vchData.clear();
	148	}
	149
20e01b1a PW	150	void CBase58Data::SetData(const std::vector<unsigned char>& vchVersionIn, const void* pdata, size_t nSize)
20e01b1a PW	151	{
f6b7c644 PW	152	vchVersion = vchVersionIn;
	153	vchData.resize(nSize);
	154	if (!vchData.empty())
	155	memcpy(&vchData[0], pdata, nSize);
	156	}
	157
20e01b1a PW	158	void CBase58Data::SetData(const std::vector<unsigned char>& vchVersionIn, const unsigned char* pbegin, const unsigned char* pend)
20e01b1a PW	159	{
f6b7c644 PW	160	SetData(vchVersionIn, (void*)pbegin, pend - pbegin);
	161	}
	162
20e01b1a PW	163	bool CBase58Data::SetString(const char* psz, unsigned int nVersionBytes)
20e01b1a PW	164	{
f6b7c644	165	std::vector<unsigned char> vchTemp;
88df548d JG	166	bool rc58 = DecodeBase58Check(psz, vchTemp);
88df548d JG	167	if ((!rc58) \|\| (vchTemp.size() < nVersionBytes)) {
f6b7c644 PW	168	vchData.clear();
	169	vchVersion.clear();
	170	return false;
	171	}
	172	vchVersion.assign(vchTemp.begin(), vchTemp.begin() + nVersionBytes);
	173	vchData.resize(vchTemp.size() - nVersionBytes);
	174	if (!vchData.empty())
	175	memcpy(&vchData[0], &vchTemp[nVersionBytes], vchData.size());
1630219d	176	memory_cleanse(&vchTemp[0], vchData.size());
f6b7c644 PW	177	return true;
	178	}
	179
00e56272	180	bool CBase58Data::SetString(const std::string& str, unsigned int nVersionBytes)
20e01b1a	181	{
00e56272	182	return SetString(str.c_str(), nVersionBytes);
f6b7c644 PW	183	}
f6b7c644 PW	184
20e01b1a PW	185	std::string CBase58Data::ToString() const
20e01b1a PW	186	{
f6b7c644 PW	187	std::vector<unsigned char> vch = vchVersion;
	188	vch.insert(vch.end(), vchData.begin(), vchData.end());
	189	return EncodeBase58Check(vch);
	190	}
	191
20e01b1a PW	192	int CBase58Data::CompareTo(const CBase58Data& b58) const
	193	{
	194	if (vchVersion < b58.vchVersion)
	195	return -1;
	196	if (vchVersion > b58.vchVersion)
	197	return 1;
	198	if (vchData < b58.vchData)
	199	return -1;
	200	if (vchData > b58.vchData)
	201	return 1;
f6b7c644 PW	202	return 0;
	203	}
	204
20e01b1a PW	205	namespace
	206	{
	207	class CBitcoinAddressVisitor : public boost::static_visitor<bool>
	208	{
	209	private:
	210	CBitcoinAddress* addr;
e10dcf27	211
20e01b1a PW	212	public:
20e01b1a PW	213	CBitcoinAddressVisitor(CBitcoinAddress* addrIn) : addr(addrIn) {}
f6b7c644	214
20e01b1a PW	215	bool operator()(const CKeyID& id) const { return addr->Set(id); }
	216	bool operator()(const CScriptID& id) const { return addr->Set(id); }
	217	bool operator()(const CNoDestination& no) const { return false; }
	218	};
e10dcf27 PK	219
e10dcf27 PK	220	} // anon namespace
f6b7c644	221
20e01b1a PW	222	bool CBitcoinAddress::Set(const CKeyID& id)
20e01b1a PW	223	{
f6b7c644 PW	224	SetData(Params().Base58Prefix(CChainParams::PUBKEY_ADDRESS), &id, 20);
	225	return true;
	226	}
	227
20e01b1a PW	228	bool CBitcoinAddress::Set(const CScriptID& id)
20e01b1a PW	229	{
f6b7c644 PW	230	SetData(Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS), &id, 20);
	231	return true;
	232	}
	233
20e01b1a PW	234	bool CBitcoinAddress::Set(const CTxDestination& dest)
20e01b1a PW	235	{
f6b7c644 PW	236	return boost::apply_visitor(CBitcoinAddressVisitor(this), dest);
	237	}
	238
20e01b1a PW	239	bool CBitcoinAddress::IsValid() const
20e01b1a PW	240	{
e84843c0 RN	241	return IsValid(Params());
	242	}
	243
20e01b1a PW	244	bool CBitcoinAddress::IsValid(const CChainParams& params) const
20e01b1a PW	245	{
f6b7c644	246	bool fCorrectSize = vchData.size() == 20;
e84843c0 RN	247	bool fKnownVersion = vchVersion == params.Base58Prefix(CChainParams::PUBKEY_ADDRESS) \|\|
e84843c0 RN	248	vchVersion == params.Base58Prefix(CChainParams::SCRIPT_ADDRESS);
f6b7c644 PW	249	return fCorrectSize && fKnownVersion;
	250	}
	251
00e56272 DH	252	bool CBitcoinAddress::SetString(const char* pszAddress)
00e56272 DH	253	{
a18c8eaa	254	return CBase58Data::SetString(pszAddress, 1);//2);
00e56272 DH	255	}
	256
	257	bool CBitcoinAddress::SetString(const std::string& strAddress)
	258	{
	259	return SetString(strAddress.c_str());
	260	}
	261
20e01b1a PW	262	CTxDestination CBitcoinAddress::Get() const
20e01b1a PW	263	{
f6b7c644 PW	264	if (!IsValid())
	265	return CNoDestination();
	266	uint160 id;
	267	memcpy(&id, &vchData[0], 20);
	268	if (vchVersion == Params().Base58Prefix(CChainParams::PUBKEY_ADDRESS))
	269	return CKeyID(id);
	270	else if (vchVersion == Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS))
	271	return CScriptID(id);
	272	else
	273	return CNoDestination();
	274	}
	275
8b78a819 T	276	bool CBitcoinAddress::GetIndexKey(uint160& hashBytes, int& type) const
	277	{
	278	if (!IsValid()) {
	279	return false;
	280	} else if (vchVersion == Params().Base58Prefix(CChainParams::PUBKEY_ADDRESS)) {
	281	memcpy(&hashBytes, &vchData[0], 20);
	282	type = 1;
	283	return true;
	284	} else if (vchVersion == Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS)) {
	285	memcpy(&hashBytes, &vchData[0], 20);
	286	type = 2;
	287	return true;
	288	}
	289
	290	return false;
	291	}
	292
20e01b1a PW	293	bool CBitcoinAddress::GetKeyID(CKeyID& keyID) const
20e01b1a PW	294	{
f6b7c644 PW	295	if (!IsValid() \|\| vchVersion != Params().Base58Prefix(CChainParams::PUBKEY_ADDRESS))
	296	return false;
	297	uint160 id;
	298	memcpy(&id, &vchData[0], 20);
	299	keyID = CKeyID(id);
	300	return true;
	301	}
	302
74329e19 MT	303	bool CBitcoinAddress::GetKeyID_NoCheck(CKeyID& keyID) const
	304	{
	305	uint160 id;
	306	memcpy(&id, &vchData[0], 20);
	307	keyID = CKeyID(id);
	308	return true;
	309	}
	310
20e01b1a PW	311	bool CBitcoinAddress::IsScript() const
20e01b1a PW	312	{
f6b7c644 PW	313	return IsValid() && vchVersion == Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS);
	314	}
	315
20e01b1a PW	316	void CBitcoinSecret::SetKey(const CKey& vchSecret)
20e01b1a PW	317	{
f6b7c644 PW	318	assert(vchSecret.IsValid());
	319	SetData(Params().Base58Prefix(CChainParams::SECRET_KEY), vchSecret.begin(), vchSecret.size());
	320	if (vchSecret.IsCompressed())
	321	vchData.push_back(1);
	322	}
	323
20e01b1a PW	324	CKey CBitcoinSecret::GetKey()
20e01b1a PW	325	{
f6b7c644	326	CKey ret;
6f3ae9b5 E	327	assert(vchData.size() >= 32);
6f3ae9b5 E	328	ret.Set(vchData.begin(), vchData.begin() + 32, vchData.size() > 32 && vchData[32] == 1);
f6b7c644 PW	329	return ret;
	330	}
	331
20e01b1a PW	332	bool CBitcoinSecret::IsValid() const
20e01b1a PW	333	{
f6b7c644 PW	334	bool fExpectedFormat = vchData.size() == 32 \|\| (vchData.size() == 33 && vchData[32] == 1);
	335	bool fCorrectVersion = vchVersion == Params().Base58Prefix(CChainParams::SECRET_KEY);
	336	return fExpectedFormat && fCorrectVersion;
	337	}
	338
20e01b1a PW	339	bool CBitcoinSecret::SetString(const char* pszSecret)
20e01b1a PW	340	{
00e56272	341	return CBase58Data::SetString(pszSecret, 1) && IsValid();
f6b7c644 PW	342	}
f6b7c644 PW	343
20e01b1a PW	344	bool CBitcoinSecret::SetString(const std::string& strSecret)
20e01b1a PW	345	{
f6b7c644 PW	346	return SetString(strSecret.c_str());
f6b7c644 PW	347	}
e104fcdd	348
13933e4c JG	349	template<class DATA_TYPE, CChainParams::Base58Type PREFIX, size_t SER_SIZE>
13933e4c JG	350	bool CZCEncoding<DATA_TYPE, PREFIX, SER_SIZE>::Set(const DATA_TYPE& addr)
e104fcdd SB	351	{
	352	CDataStream ss(SER_NETWORK, PROTOCOL_VERSION);
	353	ss << addr;
	354	std::vector<unsigned char> addrSerialized(ss.begin(), ss.end());
13933e4c JG	355	assert(addrSerialized.size() == SER_SIZE);
13933e4c JG	356	SetData(Params().Base58Prefix(PREFIX), &addrSerialized[0], SER_SIZE);
e104fcdd SB	357	return true;
	358	}
	359
13933e4c JG	360	template<class DATA_TYPE, CChainParams::Base58Type PREFIX, size_t SER_SIZE>
13933e4c JG	361	DATA_TYPE CZCEncoding<DATA_TYPE, PREFIX, SER_SIZE>::Get() const
e104fcdd	362	{
13933e4c	363	if (vchData.size() != SER_SIZE) {
e104fcdd	364	throw std::runtime_error(
13933e4c	365	PrependName(" is invalid")
e104fcdd SB	366	);
	367	}
	368
13933e4c	369	if (vchVersion != Params().Base58Prefix(PREFIX)) {
e104fcdd	370	throw std::runtime_error(
13933e4c	371	PrependName(" is for wrong network type")
e104fcdd SB	372	);
	373	}
	374
	375	std::vector<unsigned char> serialized(vchData.begin(), vchData.end());
	376
	377	CDataStream ss(serialized, SER_NETWORK, PROTOCOL_VERSION);
13933e4c	378	DATA_TYPE ret;
0d6864e4 SB	379	ss >> ret;
	380	return ret;
	381	}