/bitcoin/src/key_io.cpp

Source
// Copyright (c) 2014-2021 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 <key_io.h>

#include <base58.h>
#include <bech32.h>
#include <script/interpreter.h>
#include <script/solver.h>
#include <tinyformat.h>
#include <util/strencodings.h>

#include <algorithm>
#include <assert.h>
#include <string.h>

/// Maximum witness length for Bech32 addresses.
static constexpr std::size_t BECH32_WITNESS_PROG_MAX_LEN = 40;

namespace {
class DestinationEncoder
{
private:
    const CChainParams& m_params;

public:
    explicit DestinationEncoder(const CChainParams& params) : m_params(params) {}

    std::string operator()(const PKHash& id) const
    {
        std::vector<unsigned char> data = m_params.Base58Prefix(CChainParams::PUBKEY_ADDRESS);
        data.insert(data.end(), id.begin(), id.end());
        return EncodeBase58Check(data);
    }

    std::string operator()(const ScriptHash& id) const
    {
        std::vector<unsigned char> data = m_params.Base58Prefix(CChainParams::SCRIPT_ADDRESS);
        data.insert(data.end(), id.begin(), id.end());
        return EncodeBase58Check(data);
    }

    std::string operator()(const WitnessV0KeyHash& id) const
    {
        std::vector<unsigned char> data = {0};
        data.reserve(33);
        ConvertBits<8, 5, true>([&](unsigned char c) { data.push_back(c); }, id.begin(), id.end());
        return bech32::Encode(bech32::Encoding::BECH32, m_params.Bech32HRP(), data);
    }

    std::string operator()(const WitnessV0ScriptHash& id) const
    {
        std::vector<unsigned char> data = {0};
        data.reserve(53);
        ConvertBits<8, 5, true>([&](unsigned char c) { data.push_back(c); }, id.begin(), id.end());
        return bech32::Encode(bech32::Encoding::BECH32, m_params.Bech32HRP(), data);
    }

    std::string operator()(const WitnessV1Taproot& tap) const
    {
        std::vector<unsigned char> data = {1};
        data.reserve(53);
        ConvertBits<8, 5, true>([&](unsigned char c) { data.push_back(c); }, tap.begin(), tap.end());
        return bech32::Encode(bech32::Encoding::BECH32M, m_params.Bech32HRP(), data);
    }

    std::string operator()(const WitnessUnknown& id) const
    {
        const std::vector<unsigned char>& program = id.GetWitnessProgram();
        if (id.GetWitnessVersion() < 1 || id.GetWitnessVersion() > 16 || program.size() < 2 || program.size() > 40) {
            return {};
        }
        std::vector<unsigned char> data = {(unsigned char)id.GetWitnessVersion()};
        data.reserve(1 + (program.size() * 8 + 4) / 5);
        ConvertBits<8, 5, true>([&](unsigned char c) { data.push_back(c); }, program.begin(), program.end());
        return bech32::Encode(bech32::Encoding::BECH32M, m_params.Bech32HRP(), data);
    }

    std::string operator()(const CNoDestination& no) const { return {}; }
    std::string operator()(const PubKeyDestination& pk) const { return {}; }
};

CTxDestination DecodeDestination(const std::string& str, const CChainParams& params, std::string& error_str, std::vector<int>* error_locations)
{
    std::vector<unsigned char> data;
    uint160 hash;
    error_str = "";

    // Note this will be false if it is a valid Bech32 address for a different network
    bool is_bech32 = (ToLower(str.substr(0, params.Bech32HRP().size())) == params.Bech32HRP());

    if (!is_bech32 && DecodeBase58Check(str, data, 21)) {
        // 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.
        const std::vector<unsigned char>& pubkey_prefix = params.Base58Prefix(CChainParams::PUBKEY_ADDRESS);
        if (data.size() == hash.size() + pubkey_prefix.size() && std::equal(pubkey_prefix.begin(), pubkey_prefix.end(), data.begin())) {
            std::copy(data.begin() + pubkey_prefix.size(), data.end(), hash.begin());
            return PKHash(hash);
        }
        // Script-hash-addresses have version 5 (or 196 testnet).
        // The data vector contains RIPEMD160(SHA256(cscript)), where cscript is the serialized redemption script.
        const std::vector<unsigned char>& script_prefix = params.Base58Prefix(CChainParams::SCRIPT_ADDRESS);
        if (data.size() == hash.size() + script_prefix.size() && std::equal(script_prefix.begin(), script_prefix.end(), data.begin())) {
            std::copy(data.begin() + script_prefix.size(), data.end(), hash.begin());
            return ScriptHash(hash);
        }

        // If the prefix of data matches either the script or pubkey prefix, the length must have been wrong
        if ((data.size() >= script_prefix.size() &&
                std::equal(script_prefix.begin(), script_prefix.end(), data.begin())) ||
            (data.size() >= pubkey_prefix.size() &&
                std::equal(pubkey_prefix.begin(), pubkey_prefix.end(), data.begin()))) {
            error_str = "Invalid length for Base58 address (P2PKH or P2SH)";
        } else {
            error_str = "Invalid or unsupported Base58-encoded address.";
        }
        return CNoDestination();
    } else if (!is_bech32) {
        // Try Base58 decoding without the checksum, using a much larger max length
        if (!DecodeBase58(str, data, 100)) {
            error_str = "Invalid or unsupported Segwit (Bech32) or Base58 encoding.";
        } else {
            error_str = "Invalid checksum or length of Base58 address (P2PKH or P2SH)";
        }
        return CNoDestination();
    }

    data.clear();
    const auto dec = bech32::Decode(str);
    if (dec.encoding == bech32::Encoding::BECH32 || dec.encoding == bech32::Encoding::BECH32M) {
        if (dec.data.empty()) {
            error_str = "Empty Bech32 data section";
            return CNoDestination();
        }
        // Bech32 decoding
        if (dec.hrp != params.Bech32HRP()) {
            error_str = strprintf("Invalid or unsupported prefix for Segwit (Bech32) address (expected %s, got %s).", params.Bech32HRP(), dec.hrp);
            return CNoDestination();
        }
        int version = dec.data[0]; // The first 5 bit symbol is the witness version (0-16)
        if (version == 0 && dec.encoding != bech32::Encoding::BECH32) {
            error_str = "Version 0 witness address must use Bech32 checksum";
            return CNoDestination();
        }
        if (version != 0 && dec.encoding != bech32::Encoding::BECH32M) {
            error_str = "Version 1+ witness address must use Bech32m checksum";
            return CNoDestination();
        }
        // The rest of the symbols are converted witness program bytes.
        data.reserve(((dec.data.size() - 1) * 5) / 8);
        if (ConvertBits<5, 8, false>([&](unsigned char c) { data.push_back(c); }, dec.data.begin() + 1, dec.data.end())) {

            std::string_view byte_str{data.size() == 1 ? "byte" : "bytes"};

            if (version == 0) {
                {
                    WitnessV0KeyHash keyid;
                    if (data.size() == keyid.size()) {
                        std::copy(data.begin(), data.end(), keyid.begin());
                        return keyid;
                    }
                }
                {
                    WitnessV0ScriptHash scriptid;
                    if (data.size() == scriptid.size()) {
                        std::copy(data.begin(), data.end(), scriptid.begin());
                        return scriptid;
                    }
                }

                error_str = strprintf("Invalid Bech32 v0 address program size (%d %s), per BIP141", data.size(), byte_str);
                return CNoDestination();
            }

            if (version == 1 && data.size() == WITNESS_V1_TAPROOT_SIZE) {
                static_assert(WITNESS_V1_TAPROOT_SIZE == WitnessV1Taproot::size());
                WitnessV1Taproot tap;
                std::copy(data.begin(), data.end(), tap.begin());
                return tap;
            }

            if (CScript::IsPayToAnchor(version, data)) {
                return PayToAnchor();
            }

            if (version > 16) {
                error_str = "Invalid Bech32 address witness version";
                return CNoDestination();
            }

            if (data.size() < 2 || data.size() > BECH32_WITNESS_PROG_MAX_LEN) {
                error_str = strprintf("Invalid Bech32 address program size (%d %s)", data.size(), byte_str);
                return CNoDestination();
            }

            return WitnessUnknown{version, data};
        } else {
            error_str = strprintf("Invalid padding in Bech32 data section");
            return CNoDestination();
        }
    }

    // Perform Bech32 error location
    auto res = bech32::LocateErrors(str);
    error_str = res.first;
    if (error_locations) *error_locations = std::move(res.second);
    return CNoDestination();
}
} // namespace

CKey DecodeSecret(const std::string& str)
{
    CKey key;
    std::vector<unsigned char> data;
    if (DecodeBase58Check(str, data, 34)) {
        const std::vector<unsigned char>& privkey_prefix = Params().Base58Prefix(CChainParams::SECRET_KEY);
        if ((data.size() == 32 + privkey_prefix.size() || (data.size() == 33 + privkey_prefix.size() && data.back() == 1)) &&
            std::equal(privkey_prefix.begin(), privkey_prefix.end(), data.begin())) {
            bool compressed = data.size() == 33 + privkey_prefix.size();
            key.Set(data.begin() + privkey_prefix.size(), data.begin() + privkey_prefix.size() + 32, compressed);
        }
    }
    if (!data.empty()) {
        memory_cleanse(data.data(), data.size());
    }
    return key;
}

std::string EncodeSecret(const CKey& key)
{
    assert(key.IsValid());
    std::vector<unsigned char> data = Params().Base58Prefix(CChainParams::SECRET_KEY);
    data.insert(data.end(), UCharCast(key.begin()), UCharCast(key.end()));
    if (key.IsCompressed()) {
        data.push_back(1);
    }
    std::string ret = EncodeBase58Check(data);
    memory_cleanse(data.data(), data.size());
    return ret;
}

CExtPubKey DecodeExtPubKey(const std::string& str)
{
    CExtPubKey key;
    std::vector<unsigned char> data;
    if (DecodeBase58Check(str, data, 78)) {
        const std::vector<unsigned char>& prefix = Params().Base58Prefix(CChainParams::EXT_PUBLIC_KEY);
        if (data.size() == BIP32_EXTKEY_SIZE + prefix.size() && std::equal(prefix.begin(), prefix.end(), data.begin())) {
            key.Decode(data.data() + prefix.size());
        }
    }
    return key;
}

std::string EncodeExtPubKey(const CExtPubKey& key)
{
    std::vector<unsigned char> data = Params().Base58Prefix(CChainParams::EXT_PUBLIC_KEY);
    size_t size = data.size();
    data.resize(size + BIP32_EXTKEY_SIZE);
    key.Encode(data.data() + size);
    std::string ret = EncodeBase58Check(data);
    return ret;
}

CExtKey DecodeExtKey(const std::string& str)
{
    CExtKey key;
    std::vector<unsigned char> data;
    if (DecodeBase58Check(str, data, 78)) {
        const std::vector<unsigned char>& prefix = Params().Base58Prefix(CChainParams::EXT_SECRET_KEY);
        if (data.size() == BIP32_EXTKEY_SIZE + prefix.size() && std::equal(prefix.begin(), prefix.end(), data.begin())) {
            key.Decode(data.data() + prefix.size());
        }
    }
    if (!data.empty()) {
        memory_cleanse(data.data(), data.size());
    }
    return key;
}

std::string EncodeExtKey(const CExtKey& key)
{
    std::vector<unsigned char> data = Params().Base58Prefix(CChainParams::EXT_SECRET_KEY);
    size_t size = data.size();
    data.resize(size + BIP32_EXTKEY_SIZE);
    key.Encode(data.data() + size);
    std::string ret = EncodeBase58Check(data);
    memory_cleanse(data.data(), data.size());
    return ret;
}

std::string EncodeDestination(const CTxDestination& dest)
{
    return std::visit(DestinationEncoder(Params()), dest);
}

CTxDestination DecodeDestination(const std::string& str, std::string& error_msg, std::vector<int>* error_locations)
{
    return DecodeDestination(str, Params(), error_msg, error_locations);
}

CTxDestination DecodeDestination(const std::string& str)
{
    std::string error_msg;
    return DecodeDestination(str, error_msg);
}

bool IsValidDestinationString(const std::string& str, const CChainParams& params)
{
    std::string error_msg;
    return IsValidDestination(DecodeDestination(str, params, error_msg, nullptr));
}

bool IsValidDestinationString(const std::string& str)
{
    return IsValidDestinationString(str, Params());
}

Coverage Report

Created: 2025-06-10 13:21

Line	Count	Source
1		// Copyright (c) 2014-2021 The Bitcoin Core developers
2		// Distributed under the MIT software license, see the accompanying
3		// file COPYING or http://www.opensource.org/licenses/mit-license.php.
4
5		#include <key_io.h>
6
7		#include <base58.h>
8		#include <bech32.h>
9		#include <script/interpreter.h>
10		#include <script/solver.h>
11		#include <tinyformat.h>
12		#include <util/strencodings.h>
13
14		#include <algorithm>
15		#include <assert.h>
16		#include <string.h>
17
18		/// Maximum witness length for Bech32 addresses.
19		static constexpr std::size_t BECH32_WITNESS_PROG_MAX_LEN = 40;
20
21		namespace {
22		class DestinationEncoder
23		{
24		private:
25		const CChainParams& m_params;
26
27		public:
28	0	explicit DestinationEncoder(const CChainParams& params) : m_params(params) {}
29
30		std::string operator()(const PKHash& id) const
31	0	{
32	0	std::vector<unsigned char> data = m_params.Base58Prefix(CChainParams::PUBKEY_ADDRESS);
33	0	data.insert(data.end(), id.begin(), id.end());
34	0	return EncodeBase58Check(data);
35	0	}
36
37		std::string operator()(const ScriptHash& id) const
38	0	{
39	0	std::vector<unsigned char> data = m_params.Base58Prefix(CChainParams::SCRIPT_ADDRESS);
40	0	data.insert(data.end(), id.begin(), id.end());
41	0	return EncodeBase58Check(data);
42	0	}
43
44		std::string operator()(const WitnessV0KeyHash& id) const
45	0	{
46	0	std::vector<unsigned char> data = {0};
47	0	data.reserve(33);
48	0	ConvertBits<8, 5, true>([&](unsigned char c) { data.push_back(c); }, id.begin(), id.end());
49	0	return bech32::Encode(bech32::Encoding::BECH32, m_params.Bech32HRP(), data);
50	0	}
51
52		std::string operator()(const WitnessV0ScriptHash& id) const
53	0	{
54	0	std::vector<unsigned char> data = {0};
55	0	data.reserve(53);
56	0	ConvertBits<8, 5, true>([&](unsigned char c) { data.push_back(c); }, id.begin(), id.end());
57	0	return bech32::Encode(bech32::Encoding::BECH32, m_params.Bech32HRP(), data);
58	0	}
59
60		std::string operator()(const WitnessV1Taproot& tap) const
61	0	{
62	0	std::vector<unsigned char> data = {1};
63	0	data.reserve(53);
64	0	ConvertBits<8, 5, true>([&](unsigned char c) { data.push_back(c); }, tap.begin(), tap.end());
65	0	return bech32::Encode(bech32::Encoding::BECH32M, m_params.Bech32HRP(), data);
66	0	}
67
68		std::string operator()(const WitnessUnknown& id) const
69	0	{
70	0	const std::vector<unsigned char>& program = id.GetWitnessProgram();
71	0	if (id.GetWitnessVersion() < 1 \|\| id.GetWitnessVersion() > 16 \|\| program.size() < 2 \|\| program.size() > 40) { Branch (71:13): [True: 0, False: 0] Branch (71:43): [True: 0, False: 0] Branch (71:74): [True: 0, False: 0] Branch (71:96): [True: 0, False: 0]
72	0	return {};
73	0	}
74	0	std::vector<unsigned char> data = {(unsigned char)id.GetWitnessVersion()};
75	0	data.reserve(1 + (program.size() * 8 + 4) / 5);
76	0	ConvertBits<8, 5, true>([&](unsigned char c) { data.push_back(c); }, program.begin(), program.end());
77	0	return bech32::Encode(bech32::Encoding::BECH32M, m_params.Bech32HRP(), data);
78	0	}
79
80	0	std::string operator()(const CNoDestination& no) const { return {}; }
81	0	std::string operator()(const PubKeyDestination& pk) const { return {}; }
82		};
83
84		CTxDestination DecodeDestination(const std::string& str, const CChainParams& params, std::string& error_str, std::vector<int>* error_locations)
85	0	{
86	0	std::vector<unsigned char> data;
87	0	uint160 hash;
88	0	error_str = "";
89
90		// Note this will be false if it is a valid Bech32 address for a different network
91	0	bool is_bech32 = (ToLower(str.substr(0, params.Bech32HRP().size())) == params.Bech32HRP());
92
93	0	if (!is_bech32 && DecodeBase58Check(str, data, 21)) { Branch (93:9): [True: 0, False: 0] Branch (93:23): [True: 0, False: 0]
94		// base58-encoded Bitcoin addresses.
95		// Public-key-hash-addresses have version 0 (or 111 testnet).
96		// The data vector contains RIPEMD160(SHA256(pubkey)), where pubkey is the serialized public key.
97	0	const std::vector<unsigned char>& pubkey_prefix = params.Base58Prefix(CChainParams::PUBKEY_ADDRESS);
98	0	if (data.size() == hash.size() + pubkey_prefix.size() && std::equal(pubkey_prefix.begin(), pubkey_prefix.end(), data.begin())) { Branch (98:13): [True: 0, False: 0] Branch (98:66): [True: 0, False: 0]
99	0	std::copy(data.begin() + pubkey_prefix.size(), data.end(), hash.begin());
100	0	return PKHash(hash);
101	0	}
102		// Script-hash-addresses have version 5 (or 196 testnet).
103		// The data vector contains RIPEMD160(SHA256(cscript)), where cscript is the serialized redemption script.
104	0	const std::vector<unsigned char>& script_prefix = params.Base58Prefix(CChainParams::SCRIPT_ADDRESS);
105	0	if (data.size() == hash.size() + script_prefix.size() && std::equal(script_prefix.begin(), script_prefix.end(), data.begin())) { Branch (105:13): [True: 0, False: 0] Branch (105:66): [True: 0, False: 0]
106	0	std::copy(data.begin() + script_prefix.size(), data.end(), hash.begin());
107	0	return ScriptHash(hash);
108	0	}
109
110		// If the prefix of data matches either the script or pubkey prefix, the length must have been wrong
111	0	if ((data.size() >= script_prefix.size() && Branch (111:14): [True: 0, False: 0]
112	0	std::equal(script_prefix.begin(), script_prefix.end(), data.begin())) \|\| Branch (112:17): [True: 0, False: 0]
113	0	(data.size() >= pubkey_prefix.size() && Branch (113:14): [True: 0, False: 0]
114	0	std::equal(pubkey_prefix.begin(), pubkey_prefix.end(), data.begin()))) { Branch (114:17): [True: 0, False: 0]
115	0	error_str = "Invalid length for Base58 address (P2PKH or P2SH)";
116	0	} else {
117	0	error_str = "Invalid or unsupported Base58-encoded address.";
118	0	}
119	0	return CNoDestination();
120	0	} else if (!is_bech32) { Branch (120:16): [True: 0, False: 0]
121		// Try Base58 decoding without the checksum, using a much larger max length
122	0	if (!DecodeBase58(str, data, 100)) { Branch (122:13): [True: 0, False: 0]
123	0	error_str = "Invalid or unsupported Segwit (Bech32) or Base58 encoding.";
124	0	} else {
125	0	error_str = "Invalid checksum or length of Base58 address (P2PKH or P2SH)";
126	0	}
127	0	return CNoDestination();
128	0	}
129
130	0	data.clear();
131	0	const auto dec = bech32::Decode(str);
132	0	if (dec.encoding == bech32::Encoding::BECH32 \|\| dec.encoding == bech32::Encoding::BECH32M) { Branch (132:9): [True: 0, False: 0] Branch (132:53): [True: 0, False: 0]
133	0	if (dec.data.empty()) { Branch (133:13): [True: 0, False: 0]
134	0	error_str = "Empty Bech32 data section";
135	0	return CNoDestination();
136	0	}
137		// Bech32 decoding
138	0	if (dec.hrp != params.Bech32HRP()) { Branch (138:13): [True: 0, False: 0]
139	0	error_str = strprintf("Invalid or unsupported prefix for Segwit (Bech32) address (expected %s, got %s).", params.Bech32HRP(), dec.hrp);
140	0	return CNoDestination();
141	0	}
142	0	int version = dec.data[0]; // The first 5 bit symbol is the witness version (0-16)
143	0	if (version == 0 && dec.encoding != bech32::Encoding::BECH32) { Branch (143:13): [True: 0, False: 0] Branch (143:29): [True: 0, False: 0]
144	0	error_str = "Version 0 witness address must use Bech32 checksum";
145	0	return CNoDestination();
146	0	}
147	0	if (version != 0 && dec.encoding != bech32::Encoding::BECH32M) { Branch (147:13): [True: 0, False: 0] Branch (147:29): [True: 0, False: 0]
148	0	error_str = "Version 1+ witness address must use Bech32m checksum";
149	0	return CNoDestination();
150	0	}
151		// The rest of the symbols are converted witness program bytes.
152	0	data.reserve(((dec.data.size() - 1) * 5) / 8);
153	0	if (ConvertBits<5, 8, false>([&](unsigned char c) { data.push_back(c); }, dec.data.begin() + 1, dec.data.end())) { Branch (153:13): [True: 0, False: 0]
154
155	0	std::string_view byte_str{data.size() == 1 ? "byte" : "bytes"}; Branch (155:39): [True: 0, False: 0]
156
157	0	if (version == 0) { Branch (157:17): [True: 0, False: 0]
158	0	{
159	0	WitnessV0KeyHash keyid;
160	0	if (data.size() == keyid.size()) { Branch (160:25): [True: 0, False: 0]
161	0	std::copy(data.begin(), data.end(), keyid.begin());
162	0	return keyid;
163	0	}
164	0	}
165	0	{
166	0	WitnessV0ScriptHash scriptid;
167	0	if (data.size() == scriptid.size()) { Branch (167:25): [True: 0, False: 0]
168	0	std::copy(data.begin(), data.end(), scriptid.begin());
169	0	return scriptid;
170	0	}
171	0	}
172
173	0	error_str = strprintf("Invalid Bech32 v0 address program size (%d %s), per BIP141", data.size(), byte_str);
174	0	return CNoDestination();
175	0	}
176
177	0	if (version == 1 && data.size() == WITNESS_V1_TAPROOT_SIZE) { Branch (177:17): [True: 0, False: 0] Branch (177:33): [True: 0, False: 0]
178	0	static_assert(WITNESS_V1_TAPROOT_SIZE == WitnessV1Taproot::size());
179	0	WitnessV1Taproot tap;
180	0	std::copy(data.begin(), data.end(), tap.begin());
181	0	return tap;
182	0	}
183
184	0	if (CScript::IsPayToAnchor(version, data)) { Branch (184:17): [True: 0, False: 0]
185	0	return PayToAnchor();
186	0	}
187
188	0	if (version > 16) { Branch (188:17): [True: 0, False: 0]
189	0	error_str = "Invalid Bech32 address witness version";
190	0	return CNoDestination();
191	0	}
192
193	0	if (data.size() < 2 \|\| data.size() > BECH32_WITNESS_PROG_MAX_LEN) { Branch (193:17): [True: 0, False: 0] Branch (193:36): [True: 0, False: 0]
194	0	error_str = strprintf("Invalid Bech32 address program size (%d %s)", data.size(), byte_str);
195	0	return CNoDestination();
196	0	}
197
198	0	return WitnessUnknown{version, data};
199	0	} else {
200	0	error_str = strprintf("Invalid padding in Bech32 data section");
201	0	return CNoDestination();
202	0	}
203	0	}
204
205		// Perform Bech32 error location
206	0	auto res = bech32::LocateErrors(str);
207	0	error_str = res.first;
208	0	if (error_locations) *error_locations = std::move(res.second); Branch (208:9): [True: 0, False: 0]
209	0	return CNoDestination();
210	0	}
211		} // namespace
212
213		CKey DecodeSecret(const std::string& str)
214	0	{
215	0	CKey key;
216	0	std::vector<unsigned char> data;
217	0	if (DecodeBase58Check(str, data, 34)) { Branch (217:9): [True: 0, False: 0]
218	0	const std::vector<unsigned char>& privkey_prefix = Params().Base58Prefix(CChainParams::SECRET_KEY);
219	0	if ((data.size() == 32 + privkey_prefix.size() \|\| (data.size() == 33 + privkey_prefix.size() && data.back() == 1)) && Branch (219:14): [True: 0, False: 0] Branch (219:60): [True: 0, False: 0] Branch (219:105): [True: 0, False: 0]
220	0	std::equal(privkey_prefix.begin(), privkey_prefix.end(), data.begin())) { Branch (220:13): [True: 0, False: 0]
221	0	bool compressed = data.size() == 33 + privkey_prefix.size();
222	0	key.Set(data.begin() + privkey_prefix.size(), data.begin() + privkey_prefix.size() + 32, compressed);
223	0	}
224	0	}
225	0	if (!data.empty()) { Branch (225:9): [True: 0, False: 0]
226	0	memory_cleanse(data.data(), data.size());
227	0	}
228	0	return key;
229	0	}
230
231		std::string EncodeSecret(const CKey& key)
232	0	{
233	0	assert(key.IsValid()); Branch (233:5): [True: 0, False: 0]
234	0	std::vector<unsigned char> data = Params().Base58Prefix(CChainParams::SECRET_KEY);
235	0	data.insert(data.end(), UCharCast(key.begin()), UCharCast(key.end()));
236	0	if (key.IsCompressed()) { Branch (236:9): [True: 0, False: 0]
237	0	data.push_back(1);
238	0	}
239	0	std::string ret = EncodeBase58Check(data);
240	0	memory_cleanse(data.data(), data.size());
241	0	return ret;
242	0	}
243
244		CExtPubKey DecodeExtPubKey(const std::string& str)
245	88.7k	{
246	88.7k	CExtPubKey key;
247	88.7k	std::vector<unsigned char> data;
248	88.7k	if (DecodeBase58Check(str, data, 78)) { Branch (248:9): [True: 88.7k, False: 0]
249	88.7k	const std::vector<unsigned char>& prefix = Params().Base58Prefix(CChainParams::EXT_PUBLIC_KEY);
250	88.7k	if (data.size() == BIP32_EXTKEY_SIZE + prefix.size() && std::equal(prefix.begin(), prefix.end(), data.begin())) { Branch (250:13): [True: 88.7k, False: 0] Branch (250:65): [True: 88.7k, False: 0]
251	88.7k	key.Decode(data.data() + prefix.size());
252	88.7k	}
253	88.7k	}
254	88.7k	return key;
255	88.7k	}
256
257		std::string EncodeExtPubKey(const CExtPubKey& key)
258	443k	{
259	443k	std::vector<unsigned char> data = Params().Base58Prefix(CChainParams::EXT_PUBLIC_KEY);
260	443k	size_t size = data.size();
261	443k	data.resize(size + BIP32_EXTKEY_SIZE);
262	443k	key.Encode(data.data() + size);
263	443k	std::string ret = EncodeBase58Check(data);
264	443k	return ret;
265	443k	}
266
267		CExtKey DecodeExtKey(const std::string& str)
268	88.7k	{
269	88.7k	CExtKey key;
270	88.7k	std::vector<unsigned char> data;
271	88.7k	if (DecodeBase58Check(str, data, 78)) { Branch (271:9): [True: 88.7k, False: 0]
272	88.7k	const std::vector<unsigned char>& prefix = Params().Base58Prefix(CChainParams::EXT_SECRET_KEY);
273	88.7k	if (data.size() == BIP32_EXTKEY_SIZE + prefix.size() && std::equal(prefix.begin(), prefix.end(), data.begin())) { Branch (273:13): [True: 88.7k, False: 0] Branch (273:65): [True: 0, False: 88.7k]
274	0	key.Decode(data.data() + prefix.size());
275	0	}
276	88.7k	}
277	88.7k	if (!data.empty()) { Branch (277:9): [True: 88.7k, False: 0]
278	88.7k	memory_cleanse(data.data(), data.size());
279	88.7k	}
280	88.7k	return key;
281	88.7k	}
282
283		std::string EncodeExtKey(const CExtKey& key)
284	0	{
285	0	std::vector<unsigned char> data = Params().Base58Prefix(CChainParams::EXT_SECRET_KEY);
286	0	size_t size = data.size();
287	0	data.resize(size + BIP32_EXTKEY_SIZE);
288	0	key.Encode(data.data() + size);
289	0	std::string ret = EncodeBase58Check(data);
290	0	memory_cleanse(data.data(), data.size());
291	0	return ret;
292	0	}
293
294		std::string EncodeDestination(const CTxDestination& dest)
295	0	{
296	0	return std::visit(DestinationEncoder(Params()), dest);
297	0	}
298
299		CTxDestination DecodeDestination(const std::string& str, std::string& error_msg, std::vector<int>* error_locations)
300	0	{
301	0	return DecodeDestination(str, Params(), error_msg, error_locations);
302	0	}
303
304		CTxDestination DecodeDestination(const std::string& str)
305	0	{
306	0	std::string error_msg;
307	0	return DecodeDestination(str, error_msg);
308	0	}
309
310		bool IsValidDestinationString(const std::string& str, const CChainParams& params)
311	0	{
312	0	std::string error_msg;
313	0	return IsValidDestination(DecodeDestination(str, params, error_msg, nullptr));
314	0	}
315
316		bool IsValidDestinationString(const std::string& str)
317	0	{
318	0	return IsValidDestinationString(str, Params());
319	0	}