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Henrik Hautakoski 2020-04-03 15:49:41 +02:00
commit 137d5cbe31
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66
src/WIF.cpp Normal file
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/**
* MIT License
*
* Copyright (c) 2019-2020 EOS Sw/eden
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <iostream>
#include <string.h>
#include <libeosio/base58.h>
#include <libeosio/checksum.h>
#include <libeosio/WIF.h>
namespace libeosio {
#define PRIV_KEY_PREFIX 0x80 /* 0x80 for "Bitcoin mainnet". Always used by EOS. */
std::string wif_priv_encode(ec_privkey_t priv) {
checksum_t check;
// 1 byte extra for prefix.
unsigned char buf[1 + EC_PRIVKEY_SIZE + CHECKSUM_SIZE] = { PRIV_KEY_PREFIX };
memcpy(buf + 1, priv.data(), priv.size());
// Checksum
check = checksum_sha256d(buf, 1 + EC_PRIVKEY_SIZE);
memcpy(buf + 1 + EC_PRIVKEY_SIZE, check.data(), check.size());
return base58_encode(buf, buf + sizeof(buf));
}
std::string wif_pub_encode(ec_pubkey_t pub) {
checksum_t check = checksum_ripemd160(pub.data(), pub.size());
unsigned char buf[EC_PUBKEY_SIZE + CHECKSUM_SIZE];
memcpy(buf, pub.data(), pub.size());
memcpy(buf + EC_PUBKEY_SIZE, check.data(), check.size());
return "EOS" + base58_encode(buf, buf + sizeof(buf));
}
void wif_print_key(const struct ec_keypair *key) {
std::cout << "Public: " << wif_pub_encode(key->pub) << std::endl;
std::cout << "Private: " << wif_priv_encode(key->secret) << std::endl;
}
} // namespace libeosio

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/**
* The MIT License (MIT)
*
* Copyright (c) 2009-2019 The Bitcoin Core developers
* Copyright (c) 2009-2019 Bitcoin Developers
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* Based on code from https://github.com/bitcoin/bitcoin/blob/f1e2f2a85962c1664e4e55471061af0eaa798d40/src/base58.cpp
*/
#include <algorithm>
#include <cstddef>
#include <cassert>
#include <libeosio/base58.h>
namespace libeosio {
static const char charmap[59] = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
std::string base58_encode(const unsigned char* pbegin, const unsigned char* pend) {
// Skip & count leading zeroes.
int zeroes = 0;
int length = 0;
while (pbegin != pend && *pbegin == 0) {
pbegin++;
zeroes++;
}
// Allocate enough space in big-endian base58 representation.
std::size_t size = (pend - pbegin) * 138 / 100 + 1; // log(256) / log(58), rounded up.
std::vector<unsigned char> b58(size);
// Process the bytes.
while (pbegin != pend) {
int carry = *pbegin;
int i = 0;
// Apply "b58 = b58 * 256 + ch".
for (std::vector<unsigned char>::reverse_iterator it = b58.rbegin(); (carry != 0 || i < length) && (it != b58.rend()); it++, i++) {
carry += 256 * (*it);
*it = static_cast<unsigned char>(carry % 58);
carry /= 58;
}
assert(carry == 0);
length = i;
pbegin++;
}
// Skip leading zeroes in base58 result.
std::vector<unsigned char>::iterator it = b58.begin() + (size - length);
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 += charmap[*(it++)];
return str;
}
std::string base58_encode(const std::string& str) {
const unsigned char *ptr = (const unsigned char *) str.c_str();
return base58_encode(ptr, ptr + str.length());
}
std::string base58_encode(const std::vector<unsigned char>& vch) {
return base58_encode(vch.data(), vch.data() + vch.size());
}
bool is_base58(char ch) {
for(unsigned int i=0; i < sizeof(charmap); i++) {
if (ch == charmap[i]) {
return true;
}
}
return false;
}
size_t is_base58(const std::string& str) {
auto p = std::find_if_not(str.begin(), str.end(), static_cast<bool (*)(char)>(is_base58));
if (p == str.end()) {
return std::string::npos;
}
return p - str.begin();
}
std::string& base58_strip(std::string &str) {
str.erase(std::remove_if(str.begin(), str.end(), [] (std::string::value_type ch)
{ return is_base58(ch) == false; }
), str.end());
return str;
}
} // namespace libeosio

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/**
* MIT License
*
* Copyright (c) 2019-2020 EOS Sw/eden
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <openssl/ec.h>
#include <openssl/bn.h>
#include <openssl/hmac.h>
#include <libeosio/ec.h>
namespace libeosio {
int ec_generate_key(struct ec_keypair *pair) {
int ret = -1;
EC_KEY *k;
BN_CTX *ctx;
// Create BIGNUM context.
ctx = BN_CTX_new();
if (ctx == NULL) {
return -1;
}
// Construct curve.
k = EC_KEY_new_by_curve_name(NID_secp256k1);
if (k == NULL) {
goto fail1;
}
// Generate new key pair.
if (EC_KEY_generate_key(k) != 1) {
goto fail2;
}
// Copy private key to binary format.
EC_KEY_priv2oct(k, pair->secret.data(), EC_PRIVKEY_SIZE);
// Copy public key
EC_POINT_point2oct(EC_KEY_get0_group(k),
EC_KEY_get0_public_key(k), POINT_CONVERSION_COMPRESSED,
pair->pub.data(), EC_PUBKEY_SIZE, ctx);
ret = 0;
fail2:
EC_KEY_free(k);
fail1:
BN_CTX_free(ctx);
return ret;
}
} // namespace libeosio

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/**
* MIT License
*
* Copyright (c) 2019-2020 EOS Sw/eden
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <openssl/sha.h>
#include <openssl/ripemd.h>
#include <libeosio/hash.h>
namespace libeosio {
sha256_t* sha256(const unsigned char *data, std::size_t len, sha256_t* out) {
return (sha256_t *) SHA256(data, len, out->data);
}
sha256_t* sha256d(const unsigned char *data, std::size_t len, sha256_t* out) {
SHA256(data, len, out->data);
return (sha256_t *) SHA256(out->data, 32, out->data);
}
ripemd160_t* ripemd160(const unsigned char *data, std::size_t len, ripemd160_t* out) {
return (ripemd160_t *) RIPEMD160(data, len, out->data);
}
} // namespace libeosio