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#include "tests.h"
#include "test_pubkey.h"
#include <botan/auto_rng.h>
#include <botan/pubkey.h>
#include <botan/ecdsa.h>
#include <botan/oids.h>
#include <botan/hex.h>
#include <iostream>
#include <fstream>
using namespace Botan;
namespace {
size_t ecdsa_sig_kat(const std::string& group_id,
const std::string& x,
const std::string& hash,
const std::string& msg,
const std::string& nonce,
const std::string& signature)
{
AutoSeeded_RNG rng;
EC_Group group(OIDS::lookup(group_id));
ECDSA_PrivateKey ecdsa(rng, group, BigInt(x));
const std::string padding = "EMSA1(" + hash + ")";
PK_Verifier verify(ecdsa, padding);
PK_Signer sign(ecdsa, padding);
return validate_signature(verify, sign, "DSA/" + hash, msg, nonce, signature);
}
}
size_t test_ecdsa()
{
std::ifstream ecdsa_sig(TEST_DATA_DIR "/ecdsa.vec");
size_t fails = 0;
fails += run_tests_bb(ecdsa_sig, "ECDSA Signature", "Signature", true,
[](std::map<std::string, std::string> m) -> size_t
{
return ecdsa_sig_kat(m["Group"], m["X"], m["Hash"], m["Msg"], m["Nonce"], m["Signature"]);
});
return fails;
}
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