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include/libeosio/WIF.hpp: Adding wif_pub_decode function

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This commit is contained in:
Henrik Hautakoski 2023-03-10 13:46:20 +01:00
parent 65f93f061c
commit c990bae52e
4 changed files with 61 additions and 0 deletions
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5
include/libeosio/WIF.hpp
View file

@ -44,6 +44,11 @@ bool wif_priv_decode(ec_privkey_t& priv, const std::string& data);
*/
std::string wif_pub_encode(const ec_pubkey_t& pub, const std::string& prefix = "EOS");
/**
* Decode an WIF String to EC public key
*/
bool wif_pub_decode(ec_pubkey_t& pub, const std::string& data, size_t prefix_length = 3);
/**
* Prints an EC keypair in WIF format to standard out.
*/

22
src/WIF.cpp
View file

@ -84,6 +84,28 @@ std::string wif_pub_encode(const ec_pubkey_t& pub, const std::string& prefix) {
return prefix.substr(0, 3) + base58_encode(buf, buf + sizeof(buf));
}
bool wif_pub_decode(ec_pubkey_t& pub, const std::string& data, size_t prefix_length) {
std::vector<unsigned char> buf;
if (!base58_decode(data.c_str() + prefix_length, buf)) {
return false;
}
if (buf.size() != EC_PUBKEY_SIZE + CHECKSUM_SIZE) {
return false;
}
// Calculate and validate checksum
if (!checksum_validate<checksum_ripemd160>(buf.data(), buf.size())) {
return false;
}
// Copy data to output
memcpy(pub.data(), buf.data(), pub.size());
return true;
}
void wif_print_key(const struct ec_keypair *key, const std::string& prefix) {
std::cout << "Public: " << wif_pub_encode(key->pub, prefix) << std::endl;

1
tests/CMakeLists.txt
View file

@ -11,6 +11,7 @@ set(TEST_SRC
WIF/priv_encode.cpp
WIF/priv_decode.cpp
WIF/pub_encode.cpp
WIF/pub_decode.cpp
)
add_executable(doctest ${TEST_SRC})

33
tests/WIF/pub_decode.cpp Normal file
View file

@ -0,0 +1,33 @@
#include <libeosio/WIF.hpp>
#include <libeosio/ec.hpp>
#include <iostream>
#include <vector>
#include <doctest.h>
TEST_CASE("WIF::wif_pub_encode") {
struct testcase {
const char* name;
std::string key;
libeosio::ec_pubkey_t expected;
bool expectedRet;
};
std::vector<struct testcase> tests {
{ "one", "EOS7kzJ5iFBmQWWT1LiWgAiocESD7TTNuuPCdYREUQysruq8VeFKy", { 0x03, 0x7a, 0x0e, 0x6b, 0xfd, 0xe4, 0xf1, 0xad, 0x36, 0x3f, 0x3a, 0xf9, 0xe0, 0x93, 0x63, 0x5a, 0xa9, 0x99, 0x21, 0x15, 0xbc, 0x23, 0x35, 0x75, 0x13, 0x69, 0x55, 0xee, 0x3f, 0xf8, 0xfd, 0x97, 0xec }, true },
{ "two", "EOS5c9HkNCJLDebe2Wvapp8bpB38Pf1QWNpkrsFy3mshg7DZfPNeA", { 0x02, 0x5e, 0x94, 0xa5, 0xe7, 0x9f, 0x66, 0x37, 0x55, 0x7e, 0xc2, 0x28, 0x30, 0x40, 0x82, 0x9a, 0x38, 0x72, 0x10, 0x96, 0x6e, 0x15, 0xb7, 0xa5, 0x8a, 0x27, 0x9a, 0x71, 0x06, 0xa7, 0x64, 0x23, 0x30 }, true },
{ "three", "EOS8SwZMY8DChbbmRKS3wdHCAbv1VWgTRmQEDSaLyJk8pG4wm8BJF", { 0x03, 0xd4, 0xc6, 0x2a, 0xdc, 0x11, 0x1c, 0x65, 0x7a, 0x9f, 0x5b, 0xba, 0x96, 0x3f, 0xbb, 0x2a, 0x69, 0x2e, 0xc5, 0x4a, 0x48, 0x3b, 0xa3, 0x5f, 0x2a, 0x37, 0x6c, 0x59, 0x95, 0xb1, 0x95, 0x1c, 0xc9 }, true },
{ "wrong_checksum", "EOS8SwZMY8DChbbmRKS3wdHCAbv1VWgTRmQEDSaLyJk8pG4wm8EgC", { 0x0 }, false },
{ "wrong_length", "EOS7kzJ5iFBmQWWT1LiWgAiocESD7TT", { 0x0 }, false },
{ "not_base58", "EOS7IIIIIOOOO", { 0x0 }, false }
};
for(auto it = tests.begin(); it != tests.end(); it++) {
SUBCASE(it->name) {
libeosio::ec_pubkey_t result = { 0x0 };
CHECK( libeosio::wif_pub_decode(result, it->key) == it->expectedRet );
CHECK( result == it->expected );
}
}
}