543 lines
21 KiB
C++
543 lines
21 KiB
C++
// Copyright 2015 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <cstdio>
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#include <memory>
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#include <string>
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#include <vector>
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#include "base/command_line.h"
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#include "base/files/file_util.h"
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#include "keymaster/authorization_set.h"
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#include "keystore/keystore_client_impl.h"
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using base::CommandLine;
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using keymaster::AuthorizationSet;
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using keymaster::AuthorizationSetBuilder;
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using keystore::KeystoreClient;
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namespace {
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struct TestCase {
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std::string name;
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bool required_for_brillo_pts;
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AuthorizationSet parameters;
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};
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void PrintUsageAndExit() {
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printf("Usage: keystore_client_v2 <command> [options]\n");
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printf("Commands: brillo-platform-test [--prefix=<test_name_prefix>]\n"
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" list-brillo-tests\n"
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" add-entropy --input=<entropy>\n"
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" generate --name=<key_name>\n"
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" get-chars --name=<key_name>\n"
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" export --name=<key_name>\n"
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" delete --name=<key_name>\n"
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" delete-all\n"
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" exists --name=<key_name>\n"
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" list [--prefix=<key_name_prefix>]\n"
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" sign-verify --name=<key_name>\n"
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" [en|de]crypt --name=<key_name> --in=<file> --out=<file>\n");
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exit(1);
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}
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std::unique_ptr<KeystoreClient> CreateKeystoreInstance() {
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return std::unique_ptr<KeystoreClient>(new keystore::KeystoreClientImpl);
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}
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const char* StringifyTag(keymaster_tag_t tag) {
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switch (tag) {
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case KM_TAG_INVALID:
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return "KM_TAG_INVALID";
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case KM_TAG_PURPOSE:
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return "KM_TAG_PURPOSE";
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case KM_TAG_ALGORITHM:
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return "KM_TAG_ALGORITHM";
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case KM_TAG_KEY_SIZE:
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return "KM_TAG_KEY_SIZE";
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case KM_TAG_BLOCK_MODE:
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return "KM_TAG_BLOCK_MODE";
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case KM_TAG_DIGEST:
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return "KM_TAG_DIGEST";
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case KM_TAG_PADDING:
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return "KM_TAG_PADDING";
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case KM_TAG_CALLER_NONCE:
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return "KM_TAG_CALLER_NONCE";
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case KM_TAG_MIN_MAC_LENGTH:
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return "KM_TAG_MIN_MAC_LENGTH";
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case KM_TAG_RSA_PUBLIC_EXPONENT:
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return "KM_TAG_RSA_PUBLIC_EXPONENT";
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case KM_TAG_BLOB_USAGE_REQUIREMENTS:
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return "KM_TAG_BLOB_USAGE_REQUIREMENTS";
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case KM_TAG_BOOTLOADER_ONLY:
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return "KM_TAG_BOOTLOADER_ONLY";
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case KM_TAG_ACTIVE_DATETIME:
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return "KM_TAG_ACTIVE_DATETIME";
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case KM_TAG_ORIGINATION_EXPIRE_DATETIME:
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return "KM_TAG_ORIGINATION_EXPIRE_DATETIME";
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case KM_TAG_USAGE_EXPIRE_DATETIME:
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return "KM_TAG_USAGE_EXPIRE_DATETIME";
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case KM_TAG_MIN_SECONDS_BETWEEN_OPS:
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return "KM_TAG_MIN_SECONDS_BETWEEN_OPS";
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case KM_TAG_MAX_USES_PER_BOOT:
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return "KM_TAG_MAX_USES_PER_BOOT";
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case KM_TAG_ALL_USERS:
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return "KM_TAG_ALL_USERS";
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case KM_TAG_USER_ID:
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return "KM_TAG_USER_ID";
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case KM_TAG_USER_SECURE_ID:
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return "KM_TAG_USER_SECURE_ID";
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case KM_TAG_NO_AUTH_REQUIRED:
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return "KM_TAG_NO_AUTH_REQUIRED";
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case KM_TAG_USER_AUTH_TYPE:
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return "KM_TAG_USER_AUTH_TYPE";
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case KM_TAG_AUTH_TIMEOUT:
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return "KM_TAG_AUTH_TIMEOUT";
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case KM_TAG_ALL_APPLICATIONS:
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return "KM_TAG_ALL_APPLICATIONS";
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case KM_TAG_APPLICATION_ID:
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return "KM_TAG_APPLICATION_ID";
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case KM_TAG_APPLICATION_DATA:
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return "KM_TAG_APPLICATION_DATA";
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case KM_TAG_CREATION_DATETIME:
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return "KM_TAG_CREATION_DATETIME";
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case KM_TAG_ORIGIN:
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return "KM_TAG_ORIGIN";
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case KM_TAG_ROLLBACK_RESISTANT:
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return "KM_TAG_ROLLBACK_RESISTANT";
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case KM_TAG_ROOT_OF_TRUST:
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return "KM_TAG_ROOT_OF_TRUST";
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case KM_TAG_ASSOCIATED_DATA:
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return "KM_TAG_ASSOCIATED_DATA";
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case KM_TAG_NONCE:
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return "KM_TAG_NONCE";
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case KM_TAG_AUTH_TOKEN:
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return "KM_TAG_AUTH_TOKEN";
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case KM_TAG_MAC_LENGTH:
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return "KM_TAG_MAC_LENGTH";
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case KM_TAG_KDF:
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return "KM_TAG_KDF";
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case KM_TAG_EC_CURVE:
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return "KM_TAG_EC_CURVE";
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case KM_TAG_ECIES_SINGLE_HASH_MODE:
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return "KM_TAG_ECIES_SINGLE_HASH_MODE";
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}
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return "<Unknown>";
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}
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void PrintTags(const AuthorizationSet& parameters) {
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const keymaster_key_param_t* iter = nullptr;
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for (iter = parameters.begin(); iter != parameters.end(); ++iter) {
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printf(" %s\n", StringifyTag(iter->tag));
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}
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}
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void PrintKeyCharacteristics(const AuthorizationSet& hardware_enforced_characteristics,
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const AuthorizationSet& software_enforced_characteristics) {
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printf("Hardware:\n");
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PrintTags(hardware_enforced_characteristics);
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printf("Software:\n");
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PrintTags(software_enforced_characteristics);
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}
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bool TestKey(const std::string& name, bool required, const AuthorizationSet& parameters) {
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std::unique_ptr<KeystoreClient> keystore = CreateKeystoreInstance();
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AuthorizationSet hardware_enforced_characteristics;
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AuthorizationSet software_enforced_characteristics;
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int32_t result = keystore->generateKey("tmp", parameters, &hardware_enforced_characteristics,
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&software_enforced_characteristics);
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if (result != KM_ERROR_OK) {
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LOG(ERROR) << "Failed to generate key: " << result;
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printf("%s Result: ABORT\n", name.c_str());
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return false;
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}
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result = keystore->deleteKey("tmp");
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if (result != KM_ERROR_OK) {
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LOG(ERROR) << "Failed to delete key: " << result;
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printf("%s Result: ABORT\n", name.c_str());
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return false;
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}
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printf("===============================================================\n");
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printf("%s Key Characteristics:\n", name.c_str());
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PrintKeyCharacteristics(hardware_enforced_characteristics, software_enforced_characteristics);
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bool hardware_backed = (hardware_enforced_characteristics.size() > 0);
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if (software_enforced_characteristics.GetTagCount(KM_TAG_PURPOSE) > 0 ||
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software_enforced_characteristics.GetTagCount(KM_TAG_ALGORITHM) > 0 ||
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software_enforced_characteristics.GetTagCount(KM_TAG_KEY_SIZE) > 0 ||
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software_enforced_characteristics.GetTagCount(KM_TAG_RSA_PUBLIC_EXPONENT) > 0 ||
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software_enforced_characteristics.GetTagCount(KM_TAG_DIGEST) > 0 ||
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software_enforced_characteristics.GetTagCount(KM_TAG_PADDING) > 0 ||
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software_enforced_characteristics.GetTagCount(KM_TAG_BLOCK_MODE) > 0) {
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VLOG(1) << "Hardware-backed key but required characteristics enforced in software.";
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hardware_backed = false;
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}
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const char kBoldRedFail[] = "\033[1;31mFAIL\033[0m";
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const char kBoldGreenPass[] = "\033[1;32mPASS\033[0m";
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const char kBoldYellowWarn[] = "\033[1;33mWARN\033[0m";
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printf("[%s] %s\n",
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hardware_backed ? kBoldGreenPass : (required ? kBoldRedFail : kBoldYellowWarn),
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name.c_str());
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return (hardware_backed || !required);
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}
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AuthorizationSet GetRSASignParameters(uint32_t key_size, bool sha256_only) {
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AuthorizationSetBuilder parameters;
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parameters.RsaSigningKey(key_size, 65537)
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.Digest(KM_DIGEST_SHA_2_256)
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.Padding(KM_PAD_RSA_PKCS1_1_5_SIGN)
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.Padding(KM_PAD_RSA_PSS)
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.Authorization(keymaster::TAG_NO_AUTH_REQUIRED);
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if (!sha256_only) {
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parameters.Digest(KM_DIGEST_SHA_2_224)
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.Digest(KM_DIGEST_SHA_2_384)
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.Digest(KM_DIGEST_SHA_2_512);
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}
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return parameters.build();
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}
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AuthorizationSet GetRSAEncryptParameters(uint32_t key_size) {
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AuthorizationSetBuilder parameters;
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parameters.RsaEncryptionKey(key_size, 65537)
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.Padding(KM_PAD_RSA_PKCS1_1_5_ENCRYPT)
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.Padding(KM_PAD_RSA_OAEP)
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.Authorization(keymaster::TAG_NO_AUTH_REQUIRED);
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return parameters.build();
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}
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AuthorizationSet GetECDSAParameters(uint32_t key_size, bool sha256_only) {
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AuthorizationSetBuilder parameters;
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parameters.EcdsaSigningKey(key_size)
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.Digest(KM_DIGEST_SHA_2_256)
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.Authorization(keymaster::TAG_NO_AUTH_REQUIRED);
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if (!sha256_only) {
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parameters.Digest(KM_DIGEST_SHA_2_224)
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.Digest(KM_DIGEST_SHA_2_384)
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.Digest(KM_DIGEST_SHA_2_512);
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}
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return parameters.build();
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}
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AuthorizationSet GetAESParameters(uint32_t key_size, bool with_gcm_mode) {
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AuthorizationSetBuilder parameters;
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parameters.AesEncryptionKey(key_size).Authorization(keymaster::TAG_NO_AUTH_REQUIRED);
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if (with_gcm_mode) {
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parameters.Authorization(keymaster::TAG_BLOCK_MODE, KM_MODE_GCM)
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.Authorization(keymaster::TAG_MIN_MAC_LENGTH, 128);
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} else {
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parameters.Authorization(keymaster::TAG_BLOCK_MODE, KM_MODE_ECB);
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parameters.Authorization(keymaster::TAG_BLOCK_MODE, KM_MODE_CBC);
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parameters.Authorization(keymaster::TAG_BLOCK_MODE, KM_MODE_CTR);
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}
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return parameters.build();
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}
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AuthorizationSet GetHMACParameters(uint32_t key_size, keymaster_digest_t digest) {
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AuthorizationSetBuilder parameters;
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parameters.HmacKey(key_size)
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.Digest(digest)
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.Authorization(keymaster::TAG_MIN_MAC_LENGTH, 224)
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.Authorization(keymaster::TAG_NO_AUTH_REQUIRED);
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return parameters.build();
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}
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std::vector<TestCase> GetTestCases() {
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TestCase test_cases[] = {
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{"RSA-2048 Sign", true, GetRSASignParameters(2048, true)},
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{"RSA-2048 Sign (more digests)", false, GetRSASignParameters(2048, false)},
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{"RSA-3072 Sign", false, GetRSASignParameters(3072, false)},
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{"RSA-4096 Sign", false, GetRSASignParameters(4096, false)},
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{"RSA-2048 Encrypt", true, GetRSAEncryptParameters(2048)},
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{"RSA-3072 Encrypt", false, GetRSAEncryptParameters(3072)},
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{"RSA-4096 Encrypt", false, GetRSAEncryptParameters(4096)},
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{"ECDSA-P256 Sign", true, GetECDSAParameters(256, true)},
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{"ECDSA-P256 Sign (more digests)", false, GetECDSAParameters(256, false)},
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{"ECDSA-P224 Sign", false, GetECDSAParameters(224, false)},
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{"ECDSA-P384 Sign", false, GetECDSAParameters(384, false)},
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{"ECDSA-P521 Sign", false, GetECDSAParameters(521, false)},
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{"AES-128", true, GetAESParameters(128, false)},
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{"AES-256", true, GetAESParameters(256, false)},
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{"AES-128-GCM", false, GetAESParameters(128, true)},
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{"AES-256-GCM", false, GetAESParameters(256, true)},
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{"HMAC-SHA256-16", true, GetHMACParameters(16, KM_DIGEST_SHA_2_256)},
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{"HMAC-SHA256-32", true, GetHMACParameters(32, KM_DIGEST_SHA_2_256)},
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{"HMAC-SHA256-64", false, GetHMACParameters(64, KM_DIGEST_SHA_2_256)},
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{"HMAC-SHA224-32", false, GetHMACParameters(32, KM_DIGEST_SHA_2_224)},
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{"HMAC-SHA384-32", false, GetHMACParameters(32, KM_DIGEST_SHA_2_384)},
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{"HMAC-SHA512-32", false, GetHMACParameters(32, KM_DIGEST_SHA_2_512)},
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};
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return std::vector<TestCase>(&test_cases[0], &test_cases[arraysize(test_cases)]);
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}
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int BrilloPlatformTest(const std::string& prefix) {
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int test_count = 0;
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int fail_count = 0;
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std::vector<TestCase> test_cases = GetTestCases();
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for (const auto& test_case : test_cases) {
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if (!prefix.empty() && test_case.name.find(prefix) != 0) {
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continue;
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}
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++test_count;
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if (!TestKey(test_case.name, test_case.required_for_brillo_pts, test_case.parameters)) {
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VLOG(1) << "Test failed: " << test_case.name;
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++fail_count;
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}
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}
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return fail_count;
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}
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int ListTestCases() {
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const char kBoldGreenRequired[] = "\033[1;32mREQUIRED\033[0m";
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const char kBoldYellowRecommended[] = "\033[1;33mRECOMMENDED\033[0m";
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std::vector<TestCase> test_cases = GetTestCases();
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for (const auto& test_case : test_cases) {
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printf("%s : %s\n", test_case.name.c_str(),
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test_case.required_for_brillo_pts ? kBoldGreenRequired : kBoldYellowRecommended);
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}
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return 0;
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}
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std::string ReadFile(const std::string& filename) {
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std::string content;
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base::FilePath path(filename);
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if (!base::ReadFileToString(path, &content)) {
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printf("Failed to read file: %s\n", filename.c_str());
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exit(1);
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}
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return content;
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}
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void WriteFile(const std::string& filename, const std::string& content) {
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base::FilePath path(filename);
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int size = content.size();
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if (base::WriteFile(path, content.data(), size) != size) {
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printf("Failed to write file: %s\n", filename.c_str());
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exit(1);
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}
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}
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int AddEntropy(const std::string& input) {
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std::unique_ptr<KeystoreClient> keystore = CreateKeystoreInstance();
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int32_t result = keystore->addRandomNumberGeneratorEntropy(input);
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printf("AddEntropy: %d\n", result);
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return result;
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}
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int GenerateKey(const std::string& name) {
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std::unique_ptr<KeystoreClient> keystore = CreateKeystoreInstance();
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AuthorizationSetBuilder params;
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params.RsaSigningKey(2048, 65537)
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.Digest(KM_DIGEST_SHA_2_224)
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.Digest(KM_DIGEST_SHA_2_256)
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.Digest(KM_DIGEST_SHA_2_384)
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.Digest(KM_DIGEST_SHA_2_512)
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.Padding(KM_PAD_RSA_PKCS1_1_5_SIGN)
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.Padding(KM_PAD_RSA_PSS)
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.Authorization(keymaster::TAG_NO_AUTH_REQUIRED);
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AuthorizationSet hardware_enforced_characteristics;
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AuthorizationSet software_enforced_characteristics;
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int32_t result = keystore->generateKey(name, params.build(), &hardware_enforced_characteristics,
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&software_enforced_characteristics);
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printf("GenerateKey: %d\n", result);
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if (result == KM_ERROR_OK) {
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PrintKeyCharacteristics(hardware_enforced_characteristics,
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software_enforced_characteristics);
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}
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return result;
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}
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int GetCharacteristics(const std::string& name) {
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std::unique_ptr<KeystoreClient> keystore = CreateKeystoreInstance();
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AuthorizationSet hardware_enforced_characteristics;
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AuthorizationSet software_enforced_characteristics;
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int32_t result = keystore->getKeyCharacteristics(name, &hardware_enforced_characteristics,
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&software_enforced_characteristics);
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printf("GetCharacteristics: %d\n", result);
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if (result == KM_ERROR_OK) {
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PrintKeyCharacteristics(hardware_enforced_characteristics,
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software_enforced_characteristics);
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}
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return result;
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}
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int ExportKey(const std::string& name) {
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std::unique_ptr<KeystoreClient> keystore = CreateKeystoreInstance();
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std::string data;
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int32_t result = keystore->exportKey(KM_KEY_FORMAT_X509, name, &data);
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printf("ExportKey: %d (%zu)\n", result, data.size());
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return result;
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}
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int DeleteKey(const std::string& name) {
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std::unique_ptr<KeystoreClient> keystore = CreateKeystoreInstance();
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int32_t result = keystore->deleteKey(name);
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printf("DeleteKey: %d\n", result);
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return result;
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}
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int DeleteAllKeys() {
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std::unique_ptr<KeystoreClient> keystore = CreateKeystoreInstance();
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int32_t result = keystore->deleteAllKeys();
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printf("DeleteAllKeys: %d\n", result);
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return result;
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}
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int DoesKeyExist(const std::string& name) {
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std::unique_ptr<KeystoreClient> keystore = CreateKeystoreInstance();
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printf("DoesKeyExist: %s\n", keystore->doesKeyExist(name) ? "yes" : "no");
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return 0;
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}
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int List(const std::string& prefix) {
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std::unique_ptr<KeystoreClient> keystore = CreateKeystoreInstance();
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std::vector<std::string> key_list;
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if (!keystore->listKeys(prefix, &key_list)) {
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printf("ListKeys failed.\n");
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return 1;
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}
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printf("Keys:\n");
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for (const auto& key_name : key_list) {
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printf(" %s\n", key_name.c_str());
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}
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return 0;
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}
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int SignAndVerify(const std::string& name) {
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std::unique_ptr<KeystoreClient> keystore = CreateKeystoreInstance();
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AuthorizationSetBuilder sign_params;
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sign_params.Padding(KM_PAD_RSA_PKCS1_1_5_SIGN);
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sign_params.Digest(KM_DIGEST_SHA_2_256);
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AuthorizationSet output_params;
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keymaster_operation_handle_t handle;
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int32_t result = keystore->beginOperation(KM_PURPOSE_SIGN, name, sign_params.build(),
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&output_params, &handle);
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if (result != KM_ERROR_OK) {
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printf("Sign: BeginOperation failed: %d\n", result);
|
|
return result;
|
|
}
|
|
AuthorizationSet empty_params;
|
|
size_t num_input_bytes_consumed;
|
|
std::string output_data;
|
|
result = keystore->updateOperation(handle, empty_params, "data_to_sign",
|
|
&num_input_bytes_consumed, &output_params, &output_data);
|
|
if (result != KM_ERROR_OK) {
|
|
printf("Sign: UpdateOperation failed: %d\n", result);
|
|
return result;
|
|
}
|
|
result = keystore->finishOperation(handle, empty_params, std::string() /*signature_to_verify*/,
|
|
&output_params, &output_data);
|
|
if (result != KM_ERROR_OK) {
|
|
printf("Sign: FinishOperation failed: %d\n", result);
|
|
return result;
|
|
}
|
|
printf("Sign: %zu bytes.\n", output_data.size());
|
|
// We have a signature, now verify it.
|
|
std::string signature_to_verify = output_data;
|
|
output_data.clear();
|
|
result = keystore->beginOperation(KM_PURPOSE_VERIFY, name, sign_params.build(), &output_params,
|
|
&handle);
|
|
if (result != KM_ERROR_OK) {
|
|
printf("Verify: BeginOperation failed: %d\n", result);
|
|
return result;
|
|
}
|
|
result = keystore->updateOperation(handle, empty_params, "data_to_sign",
|
|
&num_input_bytes_consumed, &output_params, &output_data);
|
|
if (result != KM_ERROR_OK) {
|
|
printf("Verify: UpdateOperation failed: %d\n", result);
|
|
return result;
|
|
}
|
|
result = keystore->finishOperation(handle, empty_params, signature_to_verify, &output_params,
|
|
&output_data);
|
|
if (result == KM_ERROR_VERIFICATION_FAILED) {
|
|
printf("Verify: Failed to verify signature.\n");
|
|
return result;
|
|
}
|
|
if (result != KM_ERROR_OK) {
|
|
printf("Verify: FinishOperation failed: %d\n", result);
|
|
return result;
|
|
}
|
|
printf("Verify: OK\n");
|
|
return 0;
|
|
}
|
|
|
|
int Encrypt(const std::string& key_name, const std::string& input_filename,
|
|
const std::string& output_filename) {
|
|
std::unique_ptr<KeystoreClient> keystore = CreateKeystoreInstance();
|
|
std::string input = ReadFile(input_filename);
|
|
std::string output;
|
|
if (!keystore->encryptWithAuthentication(key_name, input, &output)) {
|
|
printf("EncryptWithAuthentication failed.\n");
|
|
return 1;
|
|
}
|
|
WriteFile(output_filename, output);
|
|
return 0;
|
|
}
|
|
|
|
int Decrypt(const std::string& key_name, const std::string& input_filename,
|
|
const std::string& output_filename) {
|
|
std::unique_ptr<KeystoreClient> keystore = CreateKeystoreInstance();
|
|
std::string input = ReadFile(input_filename);
|
|
std::string output;
|
|
if (!keystore->decryptWithAuthentication(key_name, input, &output)) {
|
|
printf("DecryptWithAuthentication failed.\n");
|
|
return 1;
|
|
}
|
|
WriteFile(output_filename, output);
|
|
return 0;
|
|
}
|
|
|
|
} // namespace
|
|
|
|
int main(int argc, char** argv) {
|
|
CommandLine::Init(argc, argv);
|
|
CommandLine* command_line = CommandLine::ForCurrentProcess();
|
|
CommandLine::StringVector args = command_line->GetArgs();
|
|
if (args.empty()) {
|
|
PrintUsageAndExit();
|
|
}
|
|
if (args[0] == "brillo-platform-test") {
|
|
return BrilloPlatformTest(command_line->GetSwitchValueASCII("prefix"));
|
|
} else if (args[0] == "list-brillo-tests") {
|
|
return ListTestCases();
|
|
} else if (args[0] == "add-entropy") {
|
|
return AddEntropy(command_line->GetSwitchValueASCII("input"));
|
|
} else if (args[0] == "generate") {
|
|
return GenerateKey(command_line->GetSwitchValueASCII("name"));
|
|
} else if (args[0] == "get-chars") {
|
|
return GetCharacteristics(command_line->GetSwitchValueASCII("name"));
|
|
} else if (args[0] == "export") {
|
|
return ExportKey(command_line->GetSwitchValueASCII("name"));
|
|
} else if (args[0] == "delete") {
|
|
return DeleteKey(command_line->GetSwitchValueASCII("name"));
|
|
} else if (args[0] == "delete-all") {
|
|
return DeleteAllKeys();
|
|
} else if (args[0] == "exists") {
|
|
return DoesKeyExist(command_line->GetSwitchValueASCII("name"));
|
|
} else if (args[0] == "list") {
|
|
return List(command_line->GetSwitchValueASCII("prefix"));
|
|
} else if (args[0] == "sign-verify") {
|
|
return SignAndVerify(command_line->GetSwitchValueASCII("name"));
|
|
} else if (args[0] == "encrypt") {
|
|
return Encrypt(command_line->GetSwitchValueASCII("name"),
|
|
command_line->GetSwitchValueASCII("in"),
|
|
command_line->GetSwitchValueASCII("out"));
|
|
} else if (args[0] == "decrypt") {
|
|
return Decrypt(command_line->GetSwitchValueASCII("name"),
|
|
command_line->GetSwitchValueASCII("in"),
|
|
command_line->GetSwitchValueASCII("out"));
|
|
} else {
|
|
PrintUsageAndExit();
|
|
}
|
|
return 0;
|
|
}
|