/*
 * Copyright 2014 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <stdio.h>

#include <openssl/evp.h>
#include <openssl/x509.h>

#include "trusty_keymaster_device.h"

using keymaster::TrustyKeymasterDevice;

unsigned char rsa_privkey_pk8_der[] = {
    0x30, 0x82, 0x02, 0x75, 0x02, 0x01, 0x00, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7,
    0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x04, 0x82, 0x02, 0x5f, 0x30, 0x82, 0x02, 0x5b, 0x02, 0x01,
    0x00, 0x02, 0x81, 0x81, 0x00, 0xc6, 0x09, 0x54, 0x09, 0x04, 0x7d, 0x86, 0x34, 0x81, 0x2d, 0x5a,
    0x21, 0x81, 0x76, 0xe4, 0x5c, 0x41, 0xd6, 0x0a, 0x75, 0xb1, 0x39, 0x01, 0xf2, 0x34, 0x22, 0x6c,
    0xff, 0xe7, 0x76, 0x52, 0x1c, 0x5a, 0x77, 0xb9, 0xe3, 0x89, 0x41, 0x7b, 0x71, 0xc0, 0xb6, 0xa4,
    0x4d, 0x13, 0xaf, 0xe4, 0xe4, 0xa2, 0x80, 0x5d, 0x46, 0xc9, 0xda, 0x29, 0x35, 0xad, 0xb1, 0xff,
    0x0c, 0x1f, 0x24, 0xea, 0x06, 0xe6, 0x2b, 0x20, 0xd7, 0x76, 0x43, 0x0a, 0x4d, 0x43, 0x51, 0x57,
    0x23, 0x3c, 0x6f, 0x91, 0x67, 0x83, 0xc3, 0x0e, 0x31, 0x0f, 0xcb, 0xd8, 0x9b, 0x85, 0xc2, 0xd5,
    0x67, 0x71, 0x16, 0x97, 0x85, 0xac, 0x12, 0xbc, 0xa2, 0x44, 0xab, 0xda, 0x72, 0xbf, 0xb1, 0x9f,
    0xc4, 0x4d, 0x27, 0xc8, 0x1e, 0x1d, 0x92, 0xde, 0x28, 0x4f, 0x40, 0x61, 0xed, 0xfd, 0x99, 0x28,
    0x07, 0x45, 0xea, 0x6d, 0x25, 0x02, 0x03, 0x01, 0x00, 0x01, 0x02, 0x81, 0x80, 0x1b, 0xe0, 0xf0,
    0x4d, 0x9c, 0xae, 0x37, 0x18, 0x69, 0x1f, 0x03, 0x53, 0x38, 0x30, 0x8e, 0x91, 0x56, 0x4b, 0x55,
    0x89, 0x9f, 0xfb, 0x50, 0x84, 0xd2, 0x46, 0x0e, 0x66, 0x30, 0x25, 0x7e, 0x05, 0xb3, 0xce, 0xab,
    0x02, 0x97, 0x2d, 0xfa, 0xbc, 0xd6, 0xce, 0x5f, 0x6e, 0xe2, 0x58, 0x9e, 0xb6, 0x79, 0x11, 0xed,
    0x0f, 0xac, 0x16, 0xe4, 0x3a, 0x44, 0x4b, 0x8c, 0x86, 0x1e, 0x54, 0x4a, 0x05, 0x93, 0x36, 0x57,
    0x72, 0xf8, 0xba, 0xf6, 0xb2, 0x2f, 0xc9, 0xe3, 0xc5, 0xf1, 0x02, 0x4b, 0x06, 0x3a, 0xc0, 0x80,
    0xa7, 0xb2, 0x23, 0x4c, 0xf8, 0xae, 0xe8, 0xf6, 0xc4, 0x7b, 0xbf, 0x4f, 0xd3, 0xac, 0xe7, 0x24,
    0x02, 0x90, 0xbe, 0xf1, 0x6c, 0x0b, 0x3f, 0x7f, 0x3c, 0xdd, 0x64, 0xce, 0x3a, 0xb5, 0x91, 0x2c,
    0xf6, 0xe3, 0x2f, 0x39, 0xab, 0x18, 0x83, 0x58, 0xaf, 0xcc, 0xcd, 0x80, 0x81, 0x02, 0x41, 0x00,
    0xe4, 0xb4, 0x9e, 0xf5, 0x0f, 0x76, 0x5d, 0x3b, 0x24, 0xdd, 0xe0, 0x1a, 0xce, 0xaa, 0xf1, 0x30,
    0xf2, 0xc7, 0x66, 0x70, 0xa9, 0x1a, 0x61, 0xae, 0x08, 0xaf, 0x49, 0x7b, 0x4a, 0x82, 0xbe, 0x6d,
    0xee, 0x8f, 0xcd, 0xd5, 0xe3, 0xf7, 0xba, 0x1c, 0xfb, 0x1f, 0x0c, 0x92, 0x6b, 0x88, 0xf8, 0x8c,
    0x92, 0xbf, 0xab, 0x13, 0x7f, 0xba, 0x22, 0x85, 0x22, 0x7b, 0x83, 0xc3, 0x42, 0xff, 0x7c, 0x55,
    0x02, 0x41, 0x00, 0xdd, 0xab, 0xb5, 0x83, 0x9c, 0x4c, 0x7f, 0x6b, 0xf3, 0xd4, 0x18, 0x32, 0x31,
    0xf0, 0x05, 0xb3, 0x1a, 0xa5, 0x8a, 0xff, 0xdd, 0xa5, 0xc7, 0x9e, 0x4c, 0xce, 0x21, 0x7f, 0x6b,
    0xc9, 0x30, 0xdb, 0xe5, 0x63, 0xd4, 0x80, 0x70, 0x6c, 0x24, 0xe9, 0xeb, 0xfc, 0xab, 0x28, 0xa6,
    0xcd, 0xef, 0xd3, 0x24, 0xb7, 0x7e, 0x1b, 0xf7, 0x25, 0x1b, 0x70, 0x90, 0x92, 0xc2, 0x4f, 0xf5,
    0x01, 0xfd, 0x91, 0x02, 0x40, 0x23, 0xd4, 0x34, 0x0e, 0xda, 0x34, 0x45, 0xd8, 0xcd, 0x26, 0xc1,
    0x44, 0x11, 0xda, 0x6f, 0xdc, 0xa6, 0x3c, 0x1c, 0xcd, 0x4b, 0x80, 0xa9, 0x8a, 0xd5, 0x2b, 0x78,
    0xcc, 0x8a, 0xd8, 0xbe, 0xb2, 0x84, 0x2c, 0x1d, 0x28, 0x04, 0x05, 0xbc, 0x2f, 0x6c, 0x1b, 0xea,
    0x21, 0x4a, 0x1d, 0x74, 0x2a, 0xb9, 0x96, 0xb3, 0x5b, 0x63, 0xa8, 0x2a, 0x5e, 0x47, 0x0f, 0xa8,
    0x8d, 0xbf, 0x82, 0x3c, 0xdd, 0x02, 0x40, 0x1b, 0x7b, 0x57, 0x44, 0x9a, 0xd3, 0x0d, 0x15, 0x18,
    0x24, 0x9a, 0x5f, 0x56, 0xbb, 0x98, 0x29, 0x4d, 0x4b, 0x6a, 0xc1, 0x2f, 0xfc, 0x86, 0x94, 0x04,
    0x97, 0xa5, 0xa5, 0x83, 0x7a, 0x6c, 0xf9, 0x46, 0x26, 0x2b, 0x49, 0x45, 0x26, 0xd3, 0x28, 0xc1,
    0x1e, 0x11, 0x26, 0x38, 0x0f, 0xde, 0x04, 0xc2, 0x4f, 0x91, 0x6d, 0xec, 0x25, 0x08, 0x92, 0xdb,
    0x09, 0xa6, 0xd7, 0x7c, 0xdb, 0xa3, 0x51, 0x02, 0x40, 0x77, 0x62, 0xcd, 0x8f, 0x4d, 0x05, 0x0d,
    0xa5, 0x6b, 0xd5, 0x91, 0xad, 0xb5, 0x15, 0xd2, 0x4d, 0x7c, 0xcd, 0x32, 0xcc, 0xa0, 0xd0, 0x5f,
    0x86, 0x6d, 0x58, 0x35, 0x14, 0xbd, 0x73, 0x24, 0xd5, 0xf3, 0x36, 0x45, 0xe8, 0xed, 0x8b, 0x4a,
    0x1c, 0xb3, 0xcc, 0x4a, 0x1d, 0x67, 0x98, 0x73, 0x99, 0xf2, 0xa0, 0x9f, 0x5b, 0x3f, 0xb6, 0x8c,
    0x88, 0xd5, 0xe5, 0xd9, 0x0a, 0xc3, 0x34, 0x92, 0xd6};
unsigned int rsa_privkey_pk8_der_len = 633;

unsigned char dsa_privkey_pk8_der[] = {
    0x30, 0x82, 0x01, 0x4b, 0x02, 0x01, 0x00, 0x30, 0x82, 0x01, 0x2b, 0x06, 0x07, 0x2a, 0x86, 0x48,
    0xce, 0x38, 0x04, 0x01, 0x30, 0x82, 0x01, 0x1e, 0x02, 0x81, 0x81, 0x00, 0xa3, 0xf3, 0xe9, 0xb6,
    0x7e, 0x7d, 0x88, 0xf6, 0xb7, 0xe5, 0xf5, 0x1f, 0x3b, 0xee, 0xac, 0xd7, 0xad, 0xbc, 0xc9, 0xd1,
    0x5a, 0xf8, 0x88, 0xc4, 0xef, 0x6e, 0x3d, 0x74, 0x19, 0x74, 0xe7, 0xd8, 0xe0, 0x26, 0x44, 0x19,
    0x86, 0xaf, 0x19, 0xdb, 0x05, 0xe9, 0x3b, 0x8b, 0x58, 0x58, 0xde, 0xe5, 0x4f, 0x48, 0x15, 0x01,
    0xea, 0xe6, 0x83, 0x52, 0xd7, 0xc1, 0x21, 0xdf, 0xb9, 0xb8, 0x07, 0x66, 0x50, 0xfb, 0x3a, 0x0c,
    0xb3, 0x85, 0xee, 0xbb, 0x04, 0x5f, 0xc2, 0x6d, 0x6d, 0x95, 0xfa, 0x11, 0x93, 0x1e, 0x59, 0x5b,
    0xb1, 0x45, 0x8d, 0xe0, 0x3d, 0x73, 0xaa, 0xf2, 0x41, 0x14, 0x51, 0x07, 0x72, 0x3d, 0xa2, 0xf7,
    0x58, 0xcd, 0x11, 0xa1, 0x32, 0xcf, 0xda, 0x42, 0xb7, 0xcc, 0x32, 0x80, 0xdb, 0x87, 0x82, 0xec,
    0x42, 0xdb, 0x5a, 0x55, 0x24, 0x24, 0xa2, 0xd1, 0x55, 0x29, 0xad, 0xeb, 0x02, 0x15, 0x00, 0xeb,
    0xea, 0x17, 0xd2, 0x09, 0xb3, 0xd7, 0x21, 0x9a, 0x21, 0x07, 0x82, 0x8f, 0xab, 0xfe, 0x88, 0x71,
    0x68, 0xf7, 0xe3, 0x02, 0x81, 0x80, 0x19, 0x1c, 0x71, 0xfd, 0xe0, 0x03, 0x0c, 0x43, 0xd9, 0x0b,
    0xf6, 0xcd, 0xd6, 0xa9, 0x70, 0xe7, 0x37, 0x86, 0x3a, 0x78, 0xe9, 0xa7, 0x47, 0xa7, 0x47, 0x06,
    0x88, 0xb1, 0xaf, 0xd7, 0xf3, 0xf1, 0xa1, 0xd7, 0x00, 0x61, 0x28, 0x88, 0x31, 0x48, 0x60, 0xd8,
    0x11, 0xef, 0xa5, 0x24, 0x1a, 0x81, 0xc4, 0x2a, 0xe2, 0xea, 0x0e, 0x36, 0xd2, 0xd2, 0x05, 0x84,
    0x37, 0xcf, 0x32, 0x7d, 0x09, 0xe6, 0x0f, 0x8b, 0x0c, 0xc8, 0xc2, 0xa4, 0xb1, 0xdc, 0x80, 0xca,
    0x68, 0xdf, 0xaf, 0xd2, 0x90, 0xc0, 0x37, 0x58, 0x54, 0x36, 0x8f, 0x49, 0xb8, 0x62, 0x75, 0x8b,
    0x48, 0x47, 0xc0, 0xbe, 0xf7, 0x9a, 0x92, 0xa6, 0x68, 0x05, 0xda, 0x9d, 0xaf, 0x72, 0x9a, 0x67,
    0xb3, 0xb4, 0x14, 0x03, 0xae, 0x4f, 0x4c, 0x76, 0xb9, 0xd8, 0x64, 0x0a, 0xba, 0x3b, 0xa8, 0x00,
    0x60, 0x4d, 0xae, 0x81, 0xc3, 0xc5, 0x04, 0x17, 0x02, 0x15, 0x00, 0x81, 0x9d, 0xfd, 0x53, 0x0c,
    0xc1, 0x8f, 0xbe, 0x8b, 0xea, 0x00, 0x26, 0x19, 0x29, 0x33, 0x91, 0x84, 0xbe, 0xad, 0x81};
unsigned int dsa_privkey_pk8_der_len = 335;

unsigned char ec_privkey_pk8_der[] = {
    0x30, 0x81, 0x87, 0x02, 0x01, 0x00, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02,
    0x01, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, 0x04, 0x6d, 0x30, 0x6b, 0x02,
    0x01, 0x01, 0x04, 0x20, 0x73, 0x7c, 0x2e, 0xcd, 0x7b, 0x8d, 0x19, 0x40, 0xbf, 0x29, 0x30, 0xaa,
    0x9b, 0x4e, 0xd3, 0xff, 0x94, 0x1e, 0xed, 0x09, 0x36, 0x6b, 0xc0, 0x32, 0x99, 0x98, 0x64, 0x81,
    0xf3, 0xa4, 0xd8, 0x59, 0xa1, 0x44, 0x03, 0x42, 0x00, 0x04, 0xbf, 0x85, 0xd7, 0x72, 0x0d, 0x07,
    0xc2, 0x54, 0x61, 0x68, 0x3b, 0xc6, 0x48, 0xb4, 0x77, 0x8a, 0x9a, 0x14, 0xdd, 0x8a, 0x02, 0x4e,
    0x3b, 0xdd, 0x8c, 0x7d, 0xdd, 0x9a, 0xb2, 0xb5, 0x28, 0xbb, 0xc7, 0xaa, 0x1b, 0x51, 0xf1, 0x4e,
    0xbb, 0xbb, 0x0b, 0xd0, 0xce, 0x21, 0xbc, 0xc4, 0x1c, 0x6e, 0xb0, 0x00, 0x83, 0xcf, 0x33, 0x76,
    0xd1, 0x1f, 0xd4, 0x49, 0x49, 0xe0, 0xb2, 0x18, 0x3b, 0xfe};
unsigned int ec_privkey_pk8_der_len = 138;

struct EVP_PKEY_Delete {
    void operator()(EVP_PKEY* p) const { EVP_PKEY_free(p); }
};

struct EVP_PKEY_CTX_Delete {
    void operator()(EVP_PKEY_CTX* p) { EVP_PKEY_CTX_free(p); }
};

static bool test_import_rsa(TrustyKeymasterDevice* device) {
    printf("===================\n");
    printf("= RSA Import Test =\n");
    printf("===================\n\n");

    printf("=== Importing RSA keypair === \n");
    uint8_t* key;
    size_t size;
    int error = device->import_keypair(rsa_privkey_pk8_der, rsa_privkey_pk8_der_len, &key, &size);
    if (error != KM_ERROR_OK) {
        printf("Error importing key pair: %d\n\n", error);
        return false;
    }
    UniquePtr<uint8_t[]> key_deleter(key);

    printf("=== Signing with imported RSA key ===\n");
    keymaster_rsa_sign_params_t sign_params = {DIGEST_NONE, PADDING_NONE};
    size_t message_len = 1024 / 8;
    UniquePtr<uint8_t[]> message(new uint8_t[message_len]);
    memset(message.get(), 'a', message_len);
    uint8_t* signature;
    size_t signature_len;
    error = device->sign_data(&sign_params, key, size, message.get(), message_len, &signature,
                              &signature_len);
    if (error != KM_ERROR_OK) {
        printf("Error signing data with imported RSA key: %d\n\n", error);
        return false;
    }
    UniquePtr<uint8_t[]> signature_deleter(signature);

    printf("=== Verifying with imported RSA key === \n");
    error = device->verify_data(&sign_params, key, size, message.get(), message_len, signature,
                                signature_len);
    if (error != KM_ERROR_OK) {
        printf("Error verifying data with imported RSA key: %d\n\n", error);
        return false;
    }

    printf("\n");
    return true;
}

static bool test_rsa(TrustyKeymasterDevice* device) {
    printf("============\n");
    printf("= RSA Test =\n");
    printf("============\n\n");

    printf("=== Generating RSA key pair ===\n");
    keymaster_rsa_keygen_params_t params;
    params.public_exponent = 65537;
    params.modulus_size = 2048;

    uint8_t* key;
    size_t size;
    int error = device->generate_keypair(TYPE_RSA, &params, &key, &size);
    if (error != KM_ERROR_OK) {
        printf("Error generating RSA key pair: %d\n\n", error);
        return false;
    }
    UniquePtr<uint8_t[]> deleter(key);

    printf("=== Signing with RSA key === \n");
    keymaster_rsa_sign_params_t sign_params = {DIGEST_NONE, PADDING_NONE};
    size_t message_len = params.modulus_size / 8;
    UniquePtr<uint8_t[]> message(new uint8_t[message_len]);
    memset(message.get(), 'a', message_len);
    uint8_t* signature;
    size_t signature_len;
    error = device->sign_data(&sign_params, key, size, message.get(), message_len, &signature,
                              &signature_len);
    if (error != KM_ERROR_OK) {
        printf("Error signing data with RSA key: %d\n\n", error);
        return false;
    }
    UniquePtr<uint8_t[]> signature_deleter(signature);

    printf("=== Verifying with RSA key === \n");
    error = device->verify_data(&sign_params, key, size, message.get(), message_len, signature,
                                signature_len);
    if (error != KM_ERROR_OK) {
        printf("Error verifying data with RSA key: %d\n\n", error);
        return false;
    }

    printf("=== Exporting RSA public key ===\n");
    uint8_t* exported_key;
    size_t exported_size;
    error = device->get_keypair_public(key, size, &exported_key, &exported_size);
    if (error != KM_ERROR_OK) {
        printf("Error exporting RSA public key: %d\n\n", error);
        return false;
    }

    printf("=== Verifying with exported key ===\n");
    const uint8_t* tmp = exported_key;
    UniquePtr<EVP_PKEY, EVP_PKEY_Delete> pkey(d2i_PUBKEY(NULL, &tmp, exported_size));
    UniquePtr<EVP_PKEY_CTX, EVP_PKEY_CTX_Delete> ctx(EVP_PKEY_CTX_new(pkey.get(), NULL));
    if (EVP_PKEY_verify_init(ctx.get()) != 1) {
        printf("Error initializing openss EVP context\n");
        return false;
    }
    if (EVP_PKEY_type(pkey->type) != EVP_PKEY_RSA) {
        printf("Exported key was the wrong type?!?\n");
        return false;
    }

    EVP_PKEY_CTX_set_rsa_padding(ctx.get(), RSA_NO_PADDING);
    if (EVP_PKEY_verify(ctx.get(), signature, signature_len, message.get(), message_len) != 1) {
        printf("Verification with exported pubkey failed.\n");
        return false;
    } else {
        printf("Verification succeeded\n");
    }

    printf("\n");
    return true;
}

static bool test_import_ecdsa(TrustyKeymasterDevice* device) {
    printf("=====================\n");
    printf("= ECDSA Import Test =\n");
    printf("=====================\n\n");

    printf("=== Importing ECDSA keypair === \n");
    uint8_t* key;
    size_t size;
    int error = device->import_keypair(ec_privkey_pk8_der, ec_privkey_pk8_der_len, &key, &size);
    if (error != KM_ERROR_OK) {
        printf("Error importing key pair: %d\n\n", error);
        return false;
    }
    UniquePtr<uint8_t[]> deleter(key);

    printf("=== Signing with imported ECDSA key ===\n");
    keymaster_ec_sign_params_t sign_params = {DIGEST_NONE};
    size_t message_len = 30 /* arbitrary */;
    UniquePtr<uint8_t[]> message(new uint8_t[message_len]);
    memset(message.get(), 'a', message_len);
    uint8_t* signature;
    size_t signature_len;
    error = device->sign_data(&sign_params, key, size, message.get(), message_len, &signature,
                              &signature_len);
    if (error != KM_ERROR_OK) {
        printf("Error signing data with imported ECDSA key: %d\n\n", error);
        return false;
    }
    UniquePtr<uint8_t[]> signature_deleter(signature);

    printf("=== Verifying with imported ECDSA key === \n");
    error = device->verify_data(&sign_params, key, size, message.get(), message_len, signature,
                                signature_len);
    if (error != KM_ERROR_OK) {
        printf("Error verifying data with imported ECDSA key: %d\n\n", error);
        return false;
    }

    printf("\n");
    return true;
}

static bool test_ecdsa(TrustyKeymasterDevice* device) {
    printf("==============\n");
    printf("= ECDSA Test =\n");
    printf("==============\n\n");

    printf("=== Generating ECDSA key pair ===\n");
    keymaster_ec_keygen_params_t params;
    params.field_size = 521;
    uint8_t* key;
    size_t size;
    int error = device->generate_keypair(TYPE_EC, &params, &key, &size);
    if (error != 0) {
        printf("Error generating ECDSA key pair: %d\n\n", error);
        return false;
    }
    UniquePtr<uint8_t[]> deleter(key);

    printf("=== Signing with ECDSA key === \n");
    keymaster_ec_sign_params_t sign_params = {DIGEST_NONE};
    size_t message_len = 30 /* arbitrary */;
    UniquePtr<uint8_t[]> message(new uint8_t[message_len]);
    memset(message.get(), 'a', message_len);
    uint8_t* signature;
    size_t signature_len;
    error = device->sign_data(&sign_params, key, size, message.get(), message_len, &signature,
                              &signature_len);
    if (error != KM_ERROR_OK) {
        printf("Error signing data with ECDSA key: %d\n\n", error);
        return false;
    }
    UniquePtr<uint8_t[]> signature_deleter(signature);

    printf("=== Verifying with ECDSA key === \n");
    error = device->verify_data(&sign_params, key, size, message.get(), message_len, signature,
                                signature_len);
    if (error != KM_ERROR_OK) {
        printf("Error verifying data with ECDSA key: %d\n\n", error);
        return false;
    }

    printf("=== Exporting ECDSA public key ===\n");
    uint8_t* exported_key;
    size_t exported_size;
    error = device->get_keypair_public(key, size, &exported_key, &exported_size);
    if (error != KM_ERROR_OK) {
        printf("Error exporting ECDSA public key: %d\n\n", error);
        return false;
    }

    printf("=== Verifying with exported key ===\n");
    const uint8_t* tmp = exported_key;
    UniquePtr<EVP_PKEY, EVP_PKEY_Delete> pkey(d2i_PUBKEY(NULL, &tmp, exported_size));
    UniquePtr<EVP_PKEY_CTX, EVP_PKEY_CTX_Delete> ctx(EVP_PKEY_CTX_new(pkey.get(), NULL));
    if (EVP_PKEY_verify_init(ctx.get()) != 1) {
        printf("Error initializing openss EVP context\n");
        return false;
    }
    if (EVP_PKEY_type(pkey->type) != EVP_PKEY_EC) {
        printf("Exported key was the wrong type?!?\n");
        return false;
    }

    if (EVP_PKEY_verify(ctx.get(), signature, signature_len, message.get(), message_len) != 1) {
        printf("Verification with exported pubkey failed.\n");
        return false;
    } else {
        printf("Verification succeeded\n");
    }

    printf("\n");
    return true;
}

int main(void) {

    TrustyKeymasterDevice device(NULL);
    if (device.session_error() != KM_ERROR_OK) {
        printf("Failed to initialize Trusty session: %d\n", device.session_error());
        return 1;
    }
    printf("Trusty session initialized\n");

    bool success = true;
    success &= test_rsa(&device);
    success &= test_import_rsa(&device);
    success &= test_ecdsa(&device);
    success &= test_import_ecdsa(&device);

    if (success) {
        printf("\nTESTS PASSED!\n");
    } else {
        printf("\n!!!!TESTS FAILED!!!\n");
    }

    return success ? 0 : 1;
}