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/* Copyright (c) 2017, Google Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
// cavp_ecdsa2_keypair_test processes a NIST CAVP ECDSA2 KeyPair test vector
// request file and emits the corresponding response.
#include <stdlib.h>
#include <vector>
#include <openssl/bn.h>
#include <openssl/crypto.h>
#include <openssl/ec_key.h>
#include <openssl/err.h>
#include <openssl/nid.h>
#include "../crypto/test/file_test.h"
#include "cavp_test_util.h"
static bool TestECDSA2KeyPair(FileTest *t, void *arg) {
std::string n_str;
const char *group_str;
int nid = GetECGroupNIDFromInstruction(t, &group_str);
if (nid == NID_undef ||
!t->GetAttribute(&n_str, "N")) {
return false;
}
// Don't use CurrentTestToString to avoid printing the N.
printf(
"[%s]\r\n\r\n[B.4.2 Key Pair Generation by Testing Candidates]\r\n\r\n",
group_str);
unsigned long n = strtoul(n_str.c_str(), nullptr, 10);
for (unsigned long i = 0; i < n; i++) {
bssl::UniquePtr<BIGNUM> qx(BN_new()), qy(BN_new());
bssl::UniquePtr<EC_KEY> key(EC_KEY_new_by_curve_name(nid));
if (!key ||
!EC_KEY_generate_key_fips(key.get()) ||
!EC_POINT_get_affine_coordinates_GFp(EC_KEY_get0_group(key.get()),
EC_KEY_get0_public_key(key.get()),
qx.get(), qy.get(), nullptr)) {
return false;
}
size_t degree_len =
(EC_GROUP_get_degree(EC_KEY_get0_group(key.get())) + 7) / 8;
size_t order_len =
BN_num_bytes(EC_GROUP_get0_order(EC_KEY_get0_group(key.get())));
std::vector<uint8_t> qx_bytes(degree_len), qy_bytes(degree_len);
std::vector<uint8_t> d_bytes(order_len);
if (!BN_bn2bin_padded(qx_bytes.data(), qx_bytes.size(), qx.get()) ||
!BN_bn2bin_padded(qy_bytes.data(), qy_bytes.size(), qy.get()) ||
!BN_bn2bin_padded(d_bytes.data(), d_bytes.size(),
EC_KEY_get0_private_key(key.get()))) {
return false;
}
printf("d = %s\r\nQx = %s\r\nQy = %s\r\n\r\n",
EncodeHex(d_bytes.data(), d_bytes.size()).c_str(),
EncodeHex(qx_bytes.data(), qx_bytes.size()).c_str(),
EncodeHex(qy_bytes.data(), qy_bytes.size()).c_str());
}
return true;
}
int cavp_ecdsa2_keypair_test_main(int argc, char **argv) {
if (argc != 2) {
fprintf(stderr, "usage: %s <test file>\n",
argv[0]);
return 1;
}
FileTest::Options opts;
opts.path = argv[1];
opts.callback = TestECDSA2KeyPair;
opts.silent = true;
opts.comment_callback = EchoComment;
return FileTestMain(opts);
}
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