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include/libeosio/ec.hpp: Adding ecdsa_recover()

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This commit is contained in:
Henrik Hautakoski 2023-03-21 13:19:23 +01:00
parent 640f67a934
commit 7ef801c2a8
3 changed files with 118 additions and 0 deletions
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6
include/libeosio/ec.hpp
View file

@ -117,6 +117,12 @@ int ecdsa_sign(const ec_privkey_t& key, const sha256_t* digest, ec_signature_t&
*/
int ecdsa_verify(const sha256_t* digest, const ec_signature_t& sig, const ec_pubkey_t& key);
/**
* Recover the public key from the signature.
* returns zero if the public key could be extracted. -1 if an error occured.
*/
int ecdsa_recover(const sha256_t* digest, const ec_signature_t& sig, ec_pubkey_t& key);
/**
* Shutdown the ec library.
*/

1
tests/CMakeLists.txt
View file

@ -6,6 +6,7 @@ set(TEST_SRC
ec/generate.cpp
ec/pubkey.cpp
ec/ecdsa_sign.cpp
ec/ecdsa_recover.cpp
ec/ecdsa_verify.cpp
# Base58

111
tests/ec/ecdsa_recover.cpp Normal file
View file

@ -0,0 +1,111 @@
#include <libeosio/ec.hpp>
#include <vector>
#include <doctest.h>
TEST_CASE("ec::ecdsa_sign") {
struct testcase {
const char *name;
libeosio::sha256_t dgst;
libeosio::ec_signature_t sig;
libeosio::ec_pubkey_t expected;
int expectedRet;
};
std::vector<testcase> tests = {
{
"valid #1",
{
data: {
0xab, 0x53, 0x0a, 0x13, 0xe4, 0x59, 0x14, 0x98,
0x2b, 0x79, 0xf9, 0xb7, 0xe3, 0xfb, 0xa9, 0x94,
0xcf, 0xd1, 0xf3, 0xfb, 0x22, 0xf7, 0x1c, 0xea,
0x1a, 0xfb, 0xf0, 0x2b, 0x46, 0x0c, 0x6d, 0x1d
},
},
// SIG_K1_KdgBih1poWj8DYZXwLxMdjaHMzYhuAVp7XshR9ZjrZSubZwsgSpiyUKXu44NmCtKgRFswmqKaioWLTuGZrXwYPsSNCSyyr
{
0x20, 0x44, 0x3f, 0x72, 0x22, 0xfd, 0x7a, 0x1f, 0x56, 0x2d, 0xef, 0x01, 0x55, 0x40, 0xcf, 0x50, 0x6f, 0x5f, 0xdd, 0xfe, 0x71, 0xd7, 0x18, 0xc9, 0xa8, 0xc8, 0xbe, 0x00, 0x96, 0xf8, 0x7c, 0xc7,
0x1f, 0x2d, 0xd0, 0xd1, 0xfc, 0x4a, 0x22, 0x6a, 0x25, 0xc4, 0x7c, 0x99, 0xf9, 0xd8, 0x30, 0xfa, 0x8b, 0x5c, 0x33, 0x36, 0x61, 0xd7, 0xcf, 0x6d, 0x04, 0x97, 0x61, 0x76, 0x47, 0x65, 0x30, 0x7b,
0x66
},
// Public Key: EOS6zjfj9Xjk9CYoucZDptdDZ6317eZd622pVvaYtv5q6gwEs9icD
{ 0x03, 0x15, 0x93, 0x8a, 0x8e, 0x1d, 0x57, 0x84, 0x9f, 0xab, 0x07, 0x18, 0x67, 0xb5, 0x0c, 0xda, 0xb0, 0x77, 0x62, 0x29, 0xb6, 0x43, 0xb8, 0x67, 0x56, 0xc7, 0xb3, 0xe8, 0x7f, 0xe6, 0x08, 0xf8, 0x4b },
0
},
{
"valid #2",
{
data: {
0x19, 0xd3, 0xe0, 0x8b, 0xbb, 0xad, 0x5f, 0x02,
0x35, 0xa8, 0xa8, 0xf8, 0x1a, 0x7f, 0xa1, 0xe0,
0xf8, 0x50, 0xdd, 0x39, 0x12, 0xe3, 0xc6, 0x55,
0xb4, 0x35, 0xd4, 0x78, 0x6b, 0x93, 0x64, 0xa6
},
},
// SIG_K1_K4XXx6oSYBzcwzscMstvSxruxdkTCinyN9dnRo4DuBkCCpQbCJQcJmbE7aAmNueBYCccHyyDK5JDfMpvewRF2rGUFtSE2y
{
0x1f, 0x46, 0xde, 0x7a, 0x7e, 0x87, 0xa7, 0xb0, 0x42, 0xce, 0xdc, 0x57, 0xc9, 0x0d, 0x64, 0x4c, 0xc7, 0x4d, 0xe6, 0x19, 0x5d, 0x34, 0x4e, 0xba, 0xfb, 0xdf, 0x26, 0x79, 0xa1, 0xc6, 0x99, 0x98,
0xa7, 0x1f, 0x65, 0xcd, 0xab, 0x2d, 0x19, 0x75, 0x27, 0xdc, 0xb2, 0xc5, 0x46, 0x87, 0x5d, 0xbe, 0xc5, 0x8d, 0xb2, 0xb8, 0x7f, 0x15, 0x47, 0xd7, 0xc7, 0x94, 0x0a, 0xd5, 0x52, 0xd9, 0xe3, 0x93,
0xd7
},
// Public Key: EOS6tVtKhTpM6yU7kkiRz1AecDJPcBQo2w4x4oytJbJi5PMV2Rcw2
{ 0x03, 0x07, 0x69, 0xbb, 0xa5, 0x2c, 0xd2, 0xe1, 0x3b, 0x3e, 0x0a, 0x40, 0xb3, 0xa2, 0x44, 0xad, 0x71, 0x6e, 0x32, 0x64, 0x9c, 0x3a, 0x64, 0x27, 0x4f, 0x31, 0x86, 0x8a, 0x4c, 0x69, 0x58, 0x86, 0x49 },
0
},
{
"valid #3",
{
data: {
0x1b, 0x01, 0x0b, 0xe5, 0xce, 0x6a, 0x49, 0xc7,
0xcd, 0x04, 0x86, 0x0d, 0xef, 0x63, 0x1c, 0x6a,
0xcc, 0xd5, 0x17, 0x47, 0x2e, 0x74, 0x5b, 0xa6,
0xc8, 0xaf, 0x26, 0x1b, 0x15, 0x7e, 0x11, 0xec
},
},
// SIG_K1_K54CVeQjFREm9Z92jutWESZWb9WQfCRZ2KfMtisfsnxedppeSMxTrZ9fYDLiJTfE79zvLCHb5NysAEcNdh7HiBvtU4Ahhh
{
0x1f, 0x4a, 0xe9, 0x04, 0x20, 0xfa, 0x7b, 0x9d, 0x56, 0xc6, 0x00, 0x5c, 0x83, 0x70, 0xa9, 0x26, 0x41, 0x7d, 0xe8, 0xeb, 0xe7, 0x75, 0xea, 0x6f, 0x75, 0xa7, 0x7c, 0x98, 0x10, 0x27, 0xbf, 0xce,
0x48, 0x41, 0x74, 0xb0, 0xe3, 0xb1, 0x4b, 0x06, 0x2c, 0x53, 0x93, 0xbc, 0x35, 0xea, 0xac, 0xd7, 0x9e, 0x07, 0xa7, 0xa1, 0x2e, 0xac, 0xa0, 0x81, 0x45, 0xdb, 0xd4, 0x53, 0x68, 0xda, 0xaa, 0xc6,
0xfc
},
// Public Key: EOS7Xtaa4y44gYapth4MH5bdtCvdtQvVLdsW7a8thVAuvNAkj8X7i
{ 0x03, 0x5c, 0x50, 0x81, 0xef, 0xa6, 0x46, 0x00, 0x5a, 0xb9, 0xd8, 0x2b, 0xfe, 0xd8, 0xe1, 0x6d, 0x15, 0x42, 0x9e, 0x9a, 0xcb, 0xc9, 0xd6, 0xb3, 0x2e, 0x5a, 0xe3, 0xed, 0xa5, 0x8d, 0x6a, 0x42, 0x6c },
0
},
{
"not valid #1 (non valid signature)",
{
data: {
0xde, 0x01, 0x64, 0x03, 0x39, 0x01, 0x66, 0x8b,
0xa0, 0x39, 0xef, 0x31, 0x61, 0xc7, 0xc8, 0x9d,
0x15, 0x4b, 0xc6, 0x7b, 0x99, 0x5c, 0xba, 0x9b,
0x23, 0x8a, 0x76, 0x4b, 0x81, 0xf2, 0xff, 0xeb
},
},
{
0x1f, 0x4b, 0xe9, 0x04, 0x20, 0xfa, 0x7b, 0x9d, 0x56, 0xc6, 0x00, 0x5c, 0x83, 0x70, 0xa9, 0x26, 0x41, 0x7d, 0xe8, 0xeb, 0xe7, 0x75, 0xea, 0x6f, 0x75, 0xa7, 0x7c, 0x98, 0x10, 0x27, 0xbf, 0xce,
0x48, 0x41, 0x74, 0xb0, 0xe3, 0xb1, 0x4b, 0x06, 0x2c, 0x53, 0x93, 0xbc, 0x35, 0xea, 0xac, 0xd7, 0x9e, 0x07, 0xa7, 0xa1, 0x2e, 0xac, 0xa0, 0x81, 0x45, 0xdb, 0xd4, 0x53, 0x68, 0xda, 0xaa, 0xc6,
0xfe
},
{ },
-1
},
};
libeosio::ec_init();
for(auto it = tests.begin(); it != tests.end(); it++) {
SUBCASE(it->name) {
libeosio::ec_pubkey_t result;
CHECK( libeosio::ecdsa_recover(&it->dgst, it->sig, result) == it->expectedRet );
if (it->expectedRet == 0) {
CHECK( result == it->expected );
}
}
}
libeosio::ec_shutdown();
}