89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
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/* Copyright (c) 2017, Google Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
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// cavp_ecdsa2_sigver_test processes a NIST CAVP ECDSA2 SigVer test vector
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// request file and emits the corresponding response. An optional sample vector
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// file can be passed to verify the result.
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#include <vector>
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#include <openssl/bn.h>
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#include <openssl/crypto.h>
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#include <openssl/digest.h>
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#include <openssl/ec_key.h>
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#include <openssl/ecdsa.h>
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#include <openssl/err.h>
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#include <openssl/nid.h>
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#include "../test/file_test.h"
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#include "cavp_test_util.h"
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static bool TestECDSA2SigVer(FileTest *t, void *arg) {
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int nid = GetECGroupNIDFromInstruction(t);
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const EVP_MD *md = GetDigestFromInstruction(t);
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if (nid == NID_undef || md == nullptr) {
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return false;
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}
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bssl::UniquePtr<ECDSA_SIG> sig(ECDSA_SIG_new());
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bssl::UniquePtr<EC_KEY> key(EC_KEY_new_by_curve_name(nid));
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bssl::UniquePtr<BIGNUM> qx = GetBIGNUM(t, "Qx");
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bssl::UniquePtr<BIGNUM> qy = GetBIGNUM(t, "Qy");
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bssl::UniquePtr<BIGNUM> r = GetBIGNUM(t, "R");
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bssl::UniquePtr<BIGNUM> s = GetBIGNUM(t, "S");
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std::vector<uint8_t> msg;
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uint8_t digest[EVP_MAX_MD_SIZE];
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unsigned digest_len;
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if (!sig || !key || !qx || !qy || !r || !s ||
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!EC_KEY_set_public_key_affine_coordinates(key.get(), qx.get(),
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qy.get()) ||
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!t->GetBytes(&msg, "Msg") ||
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!EVP_Digest(msg.data(), msg.size(), digest, &digest_len, md, nullptr)) {
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return false;
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}
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BN_free(sig->r);
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sig->r = r.release();
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BN_free(sig->s);
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sig->s = s.release();
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if (ECDSA_do_verify(digest, digest_len, sig.get(), key.get())) {
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printf("%sResult = P\r\n\r\n", t->CurrentTestToString().c_str());
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} else {
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char buf[256];
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ERR_error_string_n(ERR_get_error(), buf, sizeof(buf));
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printf("%sResult = F (%s)\r\n\r\n", t->CurrentTestToString().c_str(), buf);
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}
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ERR_clear_error();
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return true;
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}
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int main(int argc, char **argv) {
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CRYPTO_library_init();
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if (argc != 2) {
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fprintf(stderr, "usage: %s <test file>\n",
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argv[0]);
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return 1;
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}
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printf("# Generated by");
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for (int i = 0; i < argc; i++) {
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printf(" %s", argv[i]);
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}
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printf("\r\n\r\n");
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return FileTestMainSilent(TestECDSA2SigVer, nullptr, argv[1]);
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}
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