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/* Copyright (c) 2020, 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. */
#include <stdio.h>
#include <string.h>
#include <string>
#include <openssl/base.h>
#include <openssl/aead.h>
#include <openssl/crypto.h>
#include <openssl/cipher.h>
#include <openssl/mem.h>
#include <gtest/gtest.h>
// Test that OPENSSL_VERSION_NUMBER and OPENSSL_VERSION_TEXT are consistent.
// Node.js parses the version out of OPENSSL_VERSION_TEXT instead of using
// OPENSSL_VERSION_NUMBER.
TEST(CryptoTest, Version) {
char expected[512];
snprintf(expected, sizeof(expected), "OpenSSL %d.%d.%d ",
OPENSSL_VERSION_NUMBER >> 28, (OPENSSL_VERSION_NUMBER >> 20) & 0xff,
(OPENSSL_VERSION_NUMBER >> 12) & 0xff);
EXPECT_EQ(expected,
std::string(OPENSSL_VERSION_TEXT).substr(0, strlen(expected)));
}
TEST(CryptoTest, Strndup) {
bssl::UniquePtr<char> str(OPENSSL_strndup(nullptr, 0));
EXPECT_TRUE(str);
EXPECT_STREQ("", str.get());
}
#if defined(BORINGSSL_FIPS_COUNTERS)
using CounterArray = size_t[fips_counter_max + 1];
static void read_all_counters(CounterArray counters) {
for (fips_counter_t counter = static_cast<fips_counter_t>(0);
counter <= fips_counter_max;
counter = static_cast<fips_counter_t>(counter + 1)) {
counters[counter] = FIPS_read_counter(counter);
}
}
static void expect_counter_delta_is_zero_except_for_a_one_at(
CounterArray before, CounterArray after, fips_counter_t position) {
for (fips_counter_t counter = static_cast<fips_counter_t>(0);
counter <= fips_counter_max;
counter = static_cast<fips_counter_t>(counter + 1)) {
const size_t expected_delta = counter == position ? 1 : 0;
EXPECT_EQ(after[counter], before[counter] + expected_delta) << counter;
}
}
TEST(CryptoTest, FIPSCountersEVP) {
constexpr struct {
const EVP_CIPHER *(*cipher)();
fips_counter_t counter;
} kTests[] = {
{
EVP_aes_128_gcm,
fips_counter_evp_aes_128_gcm,
},
{
EVP_aes_256_gcm,
fips_counter_evp_aes_256_gcm,
},
{
EVP_aes_128_ctr,
fips_counter_evp_aes_128_ctr,
},
{
EVP_aes_256_ctr,
fips_counter_evp_aes_256_ctr,
},
};
uint8_t key[EVP_MAX_KEY_LENGTH] = {0};
uint8_t iv[EVP_MAX_IV_LENGTH] = {1};
CounterArray before, after;
for (const auto &test : kTests) {
read_all_counters(before);
bssl::ScopedEVP_CIPHER_CTX ctx;
ASSERT_TRUE(EVP_EncryptInit_ex(ctx.get(), test.cipher(), /*engine=*/nullptr,
key, iv));
read_all_counters(after);
expect_counter_delta_is_zero_except_for_a_one_at(before, after,
test.counter);
}
}
TEST(CryptoTest, FIPSCountersEVP_AEAD) {
constexpr struct {
const EVP_AEAD *(*aead)();
unsigned key_len;
fips_counter_t counter;
} kTests[] = {
{
EVP_aead_aes_128_gcm,
16,
fips_counter_evp_aes_128_gcm,
},
{
EVP_aead_aes_256_gcm,
32,
fips_counter_evp_aes_256_gcm,
},
};
uint8_t key[EVP_AEAD_MAX_KEY_LENGTH] = {0};
CounterArray before, after;
for (const auto &test : kTests) {
ASSERT_LE(test.key_len, sizeof(key));
read_all_counters(before);
bssl::ScopedEVP_AEAD_CTX ctx;
ASSERT_TRUE(EVP_AEAD_CTX_init(ctx.get(), test.aead(), key, test.key_len,
EVP_AEAD_DEFAULT_TAG_LENGTH,
/*engine=*/nullptr));
read_all_counters(after);
expect_counter_delta_is_zero_except_for_a_one_at(before, after,
test.counter);
}
}
#endif // BORINGSSL_FIPS_COUNTERS