Add a CAVP tool for ECDSA2 SigVer tests.
Change-Id: If3510b207793870f330c8981ef8e996949042fdc
Reviewed-on: https://boringssl-review.googlesource.com/15668
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/crypto/fipsoracle/cavp_ecdsa2_sigver_test.cc b/crypto/fipsoracle/cavp_ecdsa2_sigver_test.cc
new file mode 100644
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+++ b/crypto/fipsoracle/cavp_ecdsa2_sigver_test.cc
@@ -0,0 +1,88 @@
+/* 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_sigver_test processes a NIST CAVP ECDSA2 SigVer test vector
+// request file and emits the corresponding response. An optional sample vector
+// file can be passed to verify the result.
+
+#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 "../test/file_test.h"
+#include "cavp_test_util.h"
+
+
+static bool TestECDSA2SigVer(FileTest *t, void *arg) {
+ int nid = GetECGroupNIDFromInstruction(t);
+ const EVP_MD *md = GetDigestFromInstruction(t);
+ if (nid == NID_undef || md == nullptr) {
+ return false;
+ }
+ bssl::UniquePtr<ECDSA_SIG> sig(ECDSA_SIG_new());
+ bssl::UniquePtr<EC_KEY> key(EC_KEY_new_by_curve_name(nid));
+ bssl::UniquePtr<BIGNUM> qx = GetBIGNUM(t, "Qx");
+ bssl::UniquePtr<BIGNUM> qy = GetBIGNUM(t, "Qy");
+ bssl::UniquePtr<BIGNUM> r = GetBIGNUM(t, "R");
+ bssl::UniquePtr<BIGNUM> s = GetBIGNUM(t, "S");
+ std::vector<uint8_t> msg;
+ uint8_t digest[EVP_MAX_MD_SIZE];
+ unsigned digest_len;
+ if (!sig || !key || !qx || !qy || !r || !s ||
+ !EC_KEY_set_public_key_affine_coordinates(key.get(), qx.get(),
+ qy.get()) ||
+ !t->GetBytes(&msg, "Msg") ||
+ !EVP_Digest(msg.data(), msg.size(), digest, &digest_len, md, nullptr)) {
+ return false;
+ }
+
+ BN_free(sig->r);
+ sig->r = r.release();
+ BN_free(sig->s);
+ sig->s = s.release();
+
+ if (ECDSA_do_verify(digest, digest_len, sig.get(), key.get())) {
+ printf("%sResult = P\r\n\r\n", t->CurrentTestToString().c_str());
+ } else {
+ char buf[256];
+ ERR_error_string_n(ERR_get_error(), buf, sizeof(buf));
+ printf("%sResult = F (%s)\r\n\r\n", t->CurrentTestToString().c_str(), buf);
+ }
+ ERR_clear_error();
+ return true;
+}
+
+int main(int argc, char **argv) {
+ CRYPTO_library_init();
+
+ if (argc != 2) {
+ fprintf(stderr, "usage: %s <test file>\n",
+ argv[0]);
+ return 1;
+ }
+
+ printf("# Generated by");
+ for (int i = 0; i < argc; i++) {
+ printf(" %s", argv[i]);
+ }
+ printf("\r\n\r\n");
+
+ return FileTestMainSilent(TestECDSA2SigVer, nullptr, argv[1]);
+}
