| /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| * |
| * Timing benchmark for verifying a firmware image. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #include "cryptolib.h" |
| #include "file_keys.h" |
| #include "firmware_image.h" |
| #include "test_common.h" |
| #include "timer_utils.h" |
| #include "utility.h" |
| |
| #define FILE_NAME_SIZE 128 |
| #define NUM_OPERATIONS 100 /* Number of verify operations to time. */ |
| |
| #define FIRMWARE_SIZE_SMALL 512000 |
| #define FIRMWARE_SIZE_MEDIUM 1024000 |
| #define FIRMWARE_SIZE_LARGE 4096000 |
| const uint64_t g_firmware_sizes_to_test[] = { |
| FIRMWARE_SIZE_SMALL, |
| FIRMWARE_SIZE_MEDIUM, |
| FIRMWARE_SIZE_LARGE |
| }; |
| const char* g_firmware_size_labels[] = { |
| "small", |
| "medium", |
| "large" |
| }; |
| #define NUM_SIZES_TO_TEST (sizeof(g_firmware_sizes_to_test) / \ |
| sizeof(g_firmware_sizes_to_test[0])) |
| |
| int SpeedTestAlgorithm(int algorithm) { |
| int i, j, key_size, error_code = 0; |
| ClockTimerState ct; |
| double msecs; |
| uint64_t len; |
| uint8_t* firmware_sign_key = NULL; |
| uint8_t* root_key_blob = NULL; |
| char firmware_sign_key_file[FILE_NAME_SIZE]; |
| char file_name[FILE_NAME_SIZE]; |
| char* sha_strings[] = { /* Maps algorithm->SHA algorithm. */ |
| "sha1", "sha256", "sha512", /* RSA-1024 */ |
| "sha1", "sha256", "sha512", /* RSA-2048 */ |
| "sha1", "sha256", "sha512", /* RSA-4096 */ |
| "sha1", "sha256", "sha512", /* RSA-8192 */ |
| }; |
| uint8_t* firmware_blobs[NUM_SIZES_TO_TEST]; |
| for (i = 0; i < NUM_SIZES_TO_TEST; ++i) |
| firmware_blobs[i] = NULL; |
| |
| key_size = siglen_map[algorithm] * 8; /* in bits. */ |
| snprintf(firmware_sign_key_file, FILE_NAME_SIZE, "testkeys/key_rsa%d.pem", |
| key_size); |
| |
| snprintf(file_name, FILE_NAME_SIZE, "testkeys/key_rsa%d.keyb", key_size); |
| firmware_sign_key = BufferFromFile(file_name, &len); |
| if (!firmware_sign_key) { |
| debug("Couldn't read pre-processed firmware signing key.\n"); |
| error_code = 1; |
| goto cleanup; |
| } |
| |
| /* Generate test images. */ |
| for (i = 0; i < NUM_SIZES_TO_TEST; ++i) { |
| firmware_blobs[i] = GenerateTestFirmwareBlob(algorithm, |
| firmware_sign_key, |
| 1, /* firmware key version. */ |
| 1, /* firmware version. */ |
| g_firmware_sizes_to_test[i], |
| "testkeys/key_rsa8192.pem", |
| firmware_sign_key_file); |
| if (!firmware_blobs[i]) { |
| debug("Couldn't generate test firmware images.\n"); |
| error_code = 1; |
| goto cleanup; |
| } |
| } |
| |
| /* Get pre-processed key used for verification. */ |
| root_key_blob = BufferFromFile("testkeys/key_rsa8192.keyb", &len); |
| if (!root_key_blob) { |
| debug("Couldn't read pre-processed rootkey.\n"); |
| error_code = 1; |
| goto cleanup; |
| } |
| |
| /* Now run the timing tests. */ |
| for (i = 0; i < NUM_SIZES_TO_TEST; ++i) { |
| StartTimer(&ct); |
| for (j = 0; j < NUM_OPERATIONS; ++j) { |
| if (VERIFY_FIRMWARE_SUCCESS != |
| VerifyFirmware(root_key_blob, firmware_blobs[i])) |
| debug("Warning: Firmware Verification Failed.\n"); |
| } |
| StopTimer(&ct); |
| msecs = (float) GetDurationMsecs(&ct) / NUM_OPERATIONS; |
| fprintf(stderr, |
| "# Firmware (%s, Algo = %s):" |
| "\t%.02f ms/verification\n", |
| g_firmware_size_labels[i], |
| algo_strings[algorithm], |
| msecs); |
| fprintf(stdout, "ms_firmware_%s_rsa%d_%s:%.02f\n", |
| g_firmware_size_labels[i], |
| key_size, |
| sha_strings[algorithm], |
| msecs); |
| } |
| |
| cleanup: |
| for (i = 0; i < NUM_SIZES_TO_TEST; i++) |
| Free(firmware_blobs[i]); |
| Free(root_key_blob); |
| return error_code; |
| } |
| |
| |
| int main(int argc, char* argv[]) { |
| int i, error_code = 0; |
| for (i = 0; i < kNumAlgorithms; ++i) { |
| if (0 != (error_code = SpeedTestAlgorithm(i))) |
| return error_code; |
| } |
| return 0; |
| } |