|
- /* 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_siggen_test processes NIST CAVP ECDSA2 SigGen and
- // SigGenComponent test vector request files and emits the corresponding
- // response.
-
- #include <vector>
-
- #include <openssl/bn.h>
- #include <openssl/crypto.h>
- #include <openssl/digest.h>
- #include <openssl/ec_key.h>
- #include <openssl/ecdsa.h>
- #include <openssl/err.h>
- #include <openssl/nid.h>
-
- #include "../crypto/internal.h"
- #include "../crypto/test/file_test.h"
- #include "cavp_test_util.h"
-
-
- static bool TestECDSA2SigGenImpl(FileTest *t, bool is_component) {
- int nid = GetECGroupNIDFromInstruction(t);
- const EVP_MD *md = GetDigestFromInstruction(t);
- if (nid == NID_undef || md == nullptr) {
- return false;
- }
- bssl::UniquePtr<BIGNUM> qx(BN_new()), qy(BN_new());
- bssl::UniquePtr<EC_KEY> key(EC_KEY_new_by_curve_name(nid));
- std::vector<uint8_t> msg;
- if (!qx || !qy || !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) ||
- !t->GetBytes(&msg, "Msg")) {
- return false;
- }
-
- uint8_t digest[EVP_MAX_MD_SIZE];
- unsigned digest_len;
- if (is_component) {
- if (msg.size() != EVP_MD_size(md)) {
- t->PrintLine("Bad input length.");
- return false;
- }
- digest_len = EVP_MD_size(md);
- OPENSSL_memcpy(digest, msg.data(), msg.size());
- } else if (!EVP_Digest(msg.data(), msg.size(), digest, &digest_len, md,
- nullptr)) {
- return false;
- }
-
- bssl::UniquePtr<ECDSA_SIG> sig(ECDSA_do_sign(digest, digest_len, key.get()));
- if (!sig) {
- 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> r_bytes(order_len), s_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(r_bytes.data(), r_bytes.size(), sig->r) ||
- !BN_bn2bin_padded(s_bytes.data(), s_bytes.size(), sig->s)) {
- return false;
- }
-
- printf("%sQx = %s\r\nQy = %s\r\nR = %s\r\nS = %s\r\n\r\n",
- t->CurrentTestToString().c_str(),
- EncodeHex(qx_bytes.data(), qx_bytes.size()).c_str(),
- EncodeHex(qy_bytes.data(), qy_bytes.size()).c_str(),
- EncodeHex(r_bytes.data(), r_bytes.size()).c_str(),
- EncodeHex(s_bytes.data(), s_bytes.size()).c_str());
- return true;
- }
-
- static bool TestECDSA2SigGen(FileTest *t, void *arg) {
- return TestECDSA2SigGenImpl(t, false);
- }
-
- static bool TestECDSA2SigGenComponent(FileTest *t, void *arg) {
- return TestECDSA2SigGenImpl(t, true);
- }
-
- int cavp_ecdsa2_siggen_test_main(int argc, char **argv) {
- if (argc != 3) {
- fprintf(stderr, "usage: %s (SigGen|SigGenComponent) <test file>\n",
- argv[0]);
- return 1;
- }
-
- static bool (*test_func)(FileTest *, void *);
- if (strcmp(argv[1], "SigGen") == 0) {
- test_func = TestECDSA2SigGen;
- } else if (strcmp(argv[1], "SigGenComponent") == 0) {
- test_func = TestECDSA2SigGenComponent;
- } else {
- fprintf(stderr, "Unknown test type: %s\n", argv[1]);
- return 1;
- }
-
- FileTest::Options opts;
- opts.path = argv[2];
- opts.callback = test_func;
- opts.silent = true;
- opts.comment_callback = EchoComment;
- return FileTestMain(opts);
- }
|