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include/libeosio/WIF.hpp: Adding wif_priv_decode function.

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This commit is contained in:
Henrik Hautakoski 2023-03-10 11:12:46 +01:00
parent 82fc4b60cf
commit 4015399d47
4 changed files with 64 additions and 0 deletions
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5
include/libeosio/WIF.hpp
View file

@ -34,6 +34,11 @@ namespace libeosio {
*/
std::string wif_priv_encode(const ec_privkey_t& priv);
/**
* Decode an WIF String to EC private key
*/
bool wif_priv_decode(ec_privkey_t& priv, const std::string& data);
/**
* Encode an EC public key to WIF String.
*/

27
src/WIF.cpp
View file

@ -46,6 +46,33 @@ std::string wif_priv_encode(const ec_privkey_t& priv) {
return base58_encode(buf, buf + sizeof(buf));
}
bool wif_priv_decode(ec_privkey_t& priv, const std::string& data) {
std::vector<unsigned char> buf;
if (!base58_decode(data, buf)) {
return false;
}
if (buf.size() != 1 + EC_PRIVKEY_SIZE + CHECKSUM_SIZE) {
return false;
}
// First byte is the prefix
if (buf[0] != PRIV_KEY_PREFIX) {
return false;
}
// Calculate and validate checksum
if (!checksum_validate<checksum_sha256d>(buf.data(), buf.size())) {
return false;
}
// Copy data to output
memcpy(priv.data(), buf.data() + 1, priv.size());
return true;
}
std::string wif_pub_encode(const ec_pubkey_t& pub, const std::string& prefix) {
checksum_t check = checksum_ripemd160(pub.data(), pub.size());

1
tests/CMakeLists.txt
View file

@ -9,6 +9,7 @@ set(TEST_SRC
# WIF
WIF/priv_encode.cpp
WIF/priv_decode.cpp
)
add_executable(doctest ${TEST_SRC})

31
tests/WIF/priv_decode.cpp Normal file
View file

@ -0,0 +1,31 @@
#include <libeosio/WIF.hpp>
#include <libeosio/ec.hpp>
#include <iostream>
#include <vector>
#include <doctest.h>
struct wip_decode_testcase {
std::string name;
std::string key;
libeosio::ec_privkey_t expected;
};
TEST_CASE("WIF::wif_priv_decode") {
std::vector<struct wip_decode_testcase> tests {
{ "one", "5HueCGU8rMjxEXxiPuD5BDku4MkFqeZyd4dZ1jvhTVqvbTLvyTJ", { 0x0C, 0x28, 0xFC, 0xA3, 0x86, 0xC7, 0xA2, 0x27, 0x60, 0x0B, 0x2F, 0xE5, 0x0B, 0x7C, 0xAE, 0x11, 0xEC, 0x86, 0xD3, 0xBF, 0x1F, 0xBE, 0x47, 0x1B, 0xE8, 0x98, 0x27, 0xE1, 0x9D, 0x72, 0xAA, 0x1D } },
{ "two", "5K2hm8apqz281ANDQdtVzifpxcXFTqG5E7Fc6Q5V2ssqPRQ3urJ", { 0x9F, 0xE3, 0xE3, 0x2B, 0x3C, 0x4B, 0x6B, 0x91, 0x6E, 0x20, 0x6C, 0xB0, 0x91, 0xDF, 0x1F, 0x5E, 0x34, 0x32, 0x88, 0x0B, 0x41, 0x33, 0x86, 0xBD, 0xF2, 0x92, 0xFF, 0x23, 0x06, 0x43, 0xF2, 0x8C } },
{ "three", "5JVanYq9HPvuKgr2FjATYB9NvTsJ4a3CAj5oPYKbr1Ja5MRLsZX", { 0x59, 0x3A, 0x51, 0xB5, 0x5D, 0x56, 0xAA, 0xF0, 0x5B, 0xD9, 0xD1, 0x0E, 0x6B, 0x88, 0x6D, 0xF9, 0xC4, 0x37, 0x09, 0xB2, 0x4C, 0xEC, 0xBB, 0x63, 0x68, 0x92, 0xC2, 0x94, 0x31, 0x48, 0x71, 0x8C } }
};
for(auto it = tests.begin(); it != tests.end(); it++) {
SUBCASE(it->name.c_str()) {
libeosio::ec_privkey_t result;
CHECK( libeosio::wif_priv_decode(result, it->key) );
CHECK( result == it->expected );
}
}
}