chromium/third_party/boringssl/src/crypto/fipsmodule/ecdsa/ecdsa_test.cc

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 * This product includes cryptographic software written by Eric Young
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#include <openssl/ecdsa.h>

#include <vector>

#include <gtest/gtest.h>

#include <openssl/bn.h>
#include <openssl/crypto.h>
#include <openssl/ec.h>
#include <openssl/err.h>
#include <openssl/mem.h>
#include <openssl/nid.h>
#include <openssl/rand.h>

#include "../ec/internal.h"
#include "../../test/file_test.h"
#include "../../test/test_util.h"


static bssl::UniquePtr<BIGNUM> HexToBIGNUM(const char *hex) { … }

// Though we do not support secp160r1, it is reachable from the deprecated
// custom curve APIs and has some unique properties (n is larger than p with the
// difference crossing a word boundary on 32-bit), so test it explicitly.
static bssl::UniquePtr<EC_GROUP> NewSecp160r1Group() { … }

enum API { … };

// VerifyECDSASig checks that verifying |ecdsa_sig| gives |expected_result|.
static void VerifyECDSASig(API api, const uint8_t *digest, size_t digest_len,
                           const ECDSA_SIG *ecdsa_sig, EC_KEY *eckey,
                           int expected_result) { … }

// TestTamperedSig verifies that signature verification fails when a valid
// signature is tampered with. |ecdsa_sig| must be a valid signature, which will
// be modified.
static void TestTamperedSig(API api, const uint8_t *digest,
                            size_t digest_len, ECDSA_SIG *ecdsa_sig,
                            EC_KEY *eckey, const BIGNUM *order) { … }

TEST(ECDSATest, BuiltinCurves) { … }

static size_t BitsToBytes(size_t bits) { … }

TEST(ECDSATest, MaxSigLen) { … }

static bssl::UniquePtr<EC_GROUP> GetCurve(FileTest *t, const char *key) { … }

static bssl::UniquePtr<EC_GROUP> MakeCustomClone(const EC_GROUP *group) { … }

static bssl::UniquePtr<BIGNUM> GetBIGNUM(FileTest *t, const char *key) { … }

TEST(ECDSATest, VerifyTestVectors) { … }

TEST(ECDSATest, SignTestVectors) { … }