tests/vb21_common2_tests.c - third_party/vboot_reference - Git at Google

 /* Copyright (c) 2014 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.
  *
  * Tests for firmware image library.
  */

 #include <stdint.h>
 #include <stdio.h>
 #include <string.h>

 #include "2sysincludes.h"
 #include "2common.h"
 #include "2rsa.h"
 #include "vb21_common.h"
 #include "host_common.h"
 #include "host_key2.h"
 #include "host_signature2.h"
 #include "test_common.h"
 #include "util_misc.h"


 static const uint8_t test_data[] = "This is some test data to sign.";
 static const uint32_t test_size = sizeof(test_data);

 static void test_unpack_key(const struct vb21_packed_key *key)
 {
 	struct vb2_public_key pubk;
 	struct vb21_packed_key *key2;
 	uint32_t size = key->c.total_size;

 	/* Make a copy of the key for testing */
 	key2 = (struct vb21_packed_key *)malloc(size);

 	memcpy(key2, key, size);
 	TEST_SUCC(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
 		  "vb21_unpack_key() ok");

 	memcpy(key2, key, size);
 	key2->key_offset += 4;
 	TEST_EQ(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
 		VB2_ERROR_COMMON_MEMBER_SIZE,
 		"vb21_unpack_key() buffer too small");

 	memcpy(key2, key, size);
 	key2->c.fixed_size += size;
 	TEST_EQ(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
 		VB2_ERROR_COMMON_FIXED_SIZE,
 		"vb21_unpack_key() buffer too small for desc");

 	memcpy(key2, key, size);
 	key2->c.desc_size = 0;
 	TEST_SUCC(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
 		  "vb21_unpack_key() no desc");
 	TEST_EQ(strcmp(pubk.desc, ""), 0, "  empty desc string");

 	memcpy(key2, key, size);
 	key2->c.magic++;
 	TEST_EQ(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
 		VB2_ERROR_UNPACK_KEY_MAGIC,
 		"vb21_unpack_key() bad magic");

 	memcpy(key2, key, size);
 	key2->c.struct_version_major++;
 	TEST_EQ(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
 		VB2_ERROR_UNPACK_KEY_STRUCT_VERSION,
 		"vb21_unpack_key() bad major version");

 	/*
 	 * Minor version changes are ok.  Note that this test assumes that the
 	 * source key struct version is the highest actually known to the
 	 * reader.  If the reader does know about minor version + 1 and that
 	 * adds fields, this test will likely fail.  But at that point, we
 	 * should have already added a test for minor version compatibility to
 	 * handle both old and new struct versions, so someone will have
 	 * noticed this comment.
 	 */
 	memcpy(key2, key, size);
 	key2->c.struct_version_minor++;
 	TEST_SUCC(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
 		  "vb21_unpack_key() minor version change ok");

 	memcpy(key2, key, size);
 	key2->sig_alg = VB2_SIG_INVALID;
 	TEST_EQ(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
 		VB2_ERROR_UNPACK_KEY_SIG_ALGORITHM,
 		"vb21_unpack_key() bad sig algorithm");

 	memcpy(key2, key, size);
 	key2->hash_alg = VB2_HASH_INVALID;
 	TEST_EQ(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
 		VB2_ERROR_UNPACK_KEY_HASH_ALGORITHM,
 		"vb21_unpack_key() bad hash algorithm");

 	memcpy(key2, key, size);
 	key2->key_size -= 4;
 	TEST_EQ(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
 		VB2_ERROR_UNPACK_KEY_SIZE,
 		"vb21_unpack_key() invalid size");

 	memcpy(key2, key, size);
 	key2->key_offset--;
 	TEST_EQ(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
 		VB2_ERROR_COMMON_MEMBER_UNALIGNED,
 		"vb21_unpack_key() unaligned data");

 	memcpy(key2, key, size);
 	*(uint32_t *)((uint8_t *)key2 + key2->key_offset) /= 2;
 	TEST_EQ(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
 		VB2_ERROR_UNPACK_KEY_ARRAY_SIZE,
 		"vb21_unpack_key() invalid key array size");

 	free(key2);
 }

 static void test_verify_signature(const struct vb21_signature *sig)
 {
 	struct vb21_signature *sig2;
 	uint8_t *buf2;
 	uint32_t size;

 	/* Make a copy of the signature */
 	size = sig->c.total_size;
 	buf2 = malloc(size);
 	sig2 = (struct vb21_signature *)buf2;

 	memcpy(buf2, sig, size);
 	TEST_SUCC(vb21_verify_signature(sig2, size), "verify_sig ok");
 	sig2->c.magic = VB21_MAGIC_PACKED_KEY;
 	TEST_EQ(vb21_verify_signature(sig2, size), VB2_ERROR_SIG_MAGIC,
 		"verify_sig magic");

 	memcpy(buf2, sig, size);
 	sig2->c.total_size += 4;
 	TEST_EQ(vb21_verify_signature(sig2, size), VB2_ERROR_COMMON_TOTAL_SIZE,
 		"verify_sig common header");

 	memcpy(buf2, sig, size);
 	sig2->c.struct_version_minor++;
 	TEST_SUCC(vb21_verify_signature(sig2, size), "verify_sig minor ver");
 	sig2->c.struct_version_major++;
 	TEST_EQ(vb21_verify_signature(sig2, size), VB2_ERROR_SIG_VERSION,
 		"verify_sig major ver");

 	memcpy(buf2, sig, size);
 	sig2->c.fixed_size -= 4;
 	sig2->c.desc_size += 4;
 	TEST_EQ(vb21_verify_signature(sig2, size), VB2_ERROR_SIG_HEADER_SIZE,
 		"verify_sig header size");

 	memcpy(buf2, sig, size);
 	sig2->sig_size += 4;
 	TEST_EQ(vb21_verify_signature(sig2, size), VB2_ERROR_COMMON_MEMBER_SIZE,
 		"verify_sig sig size");

 	memcpy(buf2, sig, size);
 	sig2->sig_alg = VB2_SIG_INVALID;
 	TEST_EQ(vb21_verify_signature(sig2, size), VB2_ERROR_SIG_ALGORITHM,
 		"verify_sig sig alg");

 	memcpy(buf2, sig, size);
 	sig2->sig_alg = (sig2->sig_alg == VB2_SIG_NONE ?
 			 VB2_SIG_RSA1024 : VB2_SIG_NONE);
 	TEST_EQ(vb21_verify_signature(sig2, size), VB2_ERROR_SIG_SIZE,
 		"verify_sig sig size");

 	free(buf2);
 }

 static void test_verify_data(const struct vb2_public_key *pubk_orig,
 			      const struct vb21_signature *sig)
 {
 	uint8_t workbuf[VB2_VERIFY_DATA_WORKBUF_BYTES]
 		 __attribute__ ((aligned (VB2_WORKBUF_ALIGN)));
 	struct vb2_workbuf wb;

 	struct vb2_public_key pubk;
 	struct vb21_signature *sig2;
 	uint8_t *buf2;
 	uint32_t size;

 	vb2_workbuf_init(&wb, workbuf, sizeof(workbuf));

 	pubk = *pubk_orig;

 	/* Allocate signature copy for tests */
 	size = sig->c.total_size;
 	buf2 = malloc(size);
 	sig2 = (struct vb21_signature *)buf2;

 	memcpy(buf2, sig, size);
 	pubk.sig_alg = VB2_SIG_INVALID;
 	TEST_EQ(vb21_verify_data(test_data, test_size, sig2, &pubk, &wb),
 		VB2_ERROR_VDATA_ALGORITHM, "vb21_verify_data() bad sig alg");
 	pubk = *pubk_orig;

 	memcpy(buf2, sig, size);
 	pubk.hash_alg = VB2_HASH_INVALID;
 	TEST_EQ(vb21_verify_data(test_data, test_size, sig2, &pubk, &wb),
 		VB2_ERROR_VDATA_DIGEST_SIZE,
 		"vb21_verify_data() bad hash alg");
 	pubk = *pubk_orig;

 	vb2_workbuf_init(&wb, workbuf, 4);
 	memcpy(buf2, sig, size);
 	TEST_EQ(vb21_verify_data(test_data, test_size, sig2, &pubk, &wb),
 		VB2_ERROR_VDATA_WORKBUF_DIGEST,
 		"vb21_verify_data() workbuf too small");
 	vb2_workbuf_init(&wb, workbuf, sizeof(workbuf));

 	memcpy(buf2, sig, size);
 	TEST_EQ(vb21_verify_data(test_data, test_size, sig2, &pubk, &wb),
 		0, "vb21_verify_data() ok");

 	memcpy(buf2, sig, size);
 	sig2->sig_size -= 16;
 	TEST_EQ(vb21_verify_data(test_data, test_size, sig2, &pubk, &wb),
 		VB2_ERROR_VDATA_SIG_SIZE, "vb21_verify_data() wrong sig size");

 	memcpy(buf2, sig, size);
 	TEST_EQ(vb21_verify_data(test_data, test_size - 1, sig2, &pubk, &wb),
 		VB2_ERROR_VDATA_SIZE, "vb21_verify_data() wrong data size");

 	memcpy(buf2, sig, size);
 	sig2->hash_alg = (sig2->hash_alg == VB2_HASH_SHA1 ?
 			  VB2_HASH_SHA256 : VB2_HASH_SHA1);
 	TEST_EQ(vb21_verify_data(test_data, test_size, sig2, &pubk, &wb),
 		VB2_ERROR_VDATA_ALGORITHM_MISMATCH,
 		"vb21_verify_data() alg mismatch");


 	memcpy(buf2, sig, size);
 	buf2[sig2->sig_offset] ^= 0x5A;
 	TEST_EQ(vb21_verify_data(test_data, test_size, sig2, &pubk, &wb),
 		VB2_ERROR_RSA_PADDING, "vb21_verify_data() wrong sig");

 	free(buf2);
 }

 int test_algorithm(int key_algorithm, const char *keys_dir)
 {
 	char filename[1024];

 	enum vb2_signature_algorithm sig_alg =
 		vb2_crypto_to_signature(key_algorithm);
 	enum vb2_hash_algorithm hash_alg = vb2_crypto_to_hash(key_algorithm);

 	struct vb2_private_key *prik = NULL;
 	struct vb21_signature *sig2 = NULL;
 	struct vb2_public_key *pubk;
 	uint8_t *pubk_buf = 0;
 	uint8_t *keyb_data = 0;
 	uint32_t keyb_size;
 	struct vb21_packed_key *key2 = NULL;

 	printf("***Testing algorithm: %s\n",
 	       vb2_get_crypto_algorithm_name(key_algorithm));

 	snprintf(filename, sizeof(filename), "%s/key_%s.pem",
 		 keys_dir,
 		 vb2_get_crypto_algorithm_file(key_algorithm));
 	TEST_SUCC(vb2_private_key_read_pem(&prik, filename),
 		  "Read private key");
 	prik->hash_alg = hash_alg;
 	prik->sig_alg = sig_alg;
 	vb2_private_key_set_desc(prik, "private key");


 	/* Create the public key */
 	TEST_SUCC(vb2_public_key_alloc(&pubk, sig_alg), "Allocate public key");
 	/* Extract the keyb blob */
 	TEST_SUCC(vb_keyb_from_rsa(prik->rsa_private_key,
 				   &keyb_data, &keyb_size),
 		  "Extract public key");

 	/*
 	 * Copy the keyb blob to the public key's buffer, because that's
 	 * where vb2_unpack_key_data() and vb2_public_key_pack() expect
 	 * to find it.
 	 */
 	pubk_buf = vb2_public_key_packed_data(pubk);
 	memcpy(pubk_buf, keyb_data, keyb_size);

 	/* Fill in the internal struct pointers */
 	TEST_SUCC(vb2_unpack_key_data(pubk, pubk_buf, keyb_size),
 		"unpack public key blob");

 	pubk->hash_alg = hash_alg;
 	vb2_public_key_set_desc(pubk, "public key");
 	TEST_SUCC(vb21_public_key_pack(&key2, pubk), "Pack public key");

 	/* Calculate good signatures */
 	TEST_SUCC(vb21_sign_data(&sig2, test_data, test_size, prik, ""),
 		  "Make test signature");

 	test_unpack_key(key2);
 	test_verify_data(pubk, sig2);
 	test_verify_signature(sig2);

 	free(keyb_data);
 	free(key2);
 	free(sig2);
 	vb2_private_key_free(prik);
 	vb2_public_key_free(pubk);

 	return 0;
 }

 /* Test only the algorithms we use */
 const int key_algs[] = {
 	VB2_ALG_RSA2048_SHA256,
 	VB2_ALG_RSA4096_SHA256,
 	VB2_ALG_RSA8192_SHA512,
 };

 int main(int argc, char *argv[]) {

 	if (argc == 2) {
 		int i;

 		for (i = 0; i < ARRAY_SIZE(key_algs); i++) {
 			if (test_algorithm(key_algs[i], argv[1]))
 				return 1;
 		}

 	} else if (argc == 3 && !strcasecmp(argv[2], "--all")) {
 		/* Test all the algorithms */
 		int alg;

 		for (alg = 0; alg < VB2_ALG_COUNT; alg++) {
 			if (test_algorithm(alg, argv[1]))
 				return 1;
 		}

 	} else {
 		fprintf(stderr, "Usage: %s <keys_dir> [--all]", argv[0]);
 		return -1;
 	}

 	return gTestSuccess ? 0 : 255;
 }
	/* Copyright (c) 2014 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.
	*
	* Tests for firmware image library.
	*/

	#include <stdint.h>
	#include <stdio.h>
	#include <string.h>

	#include "2sysincludes.h"
	#include "2common.h"
	#include "2rsa.h"
	#include "vb21_common.h"
	#include "host_common.h"
	#include "host_key2.h"
	#include "host_signature2.h"
	#include "test_common.h"
	#include "util_misc.h"


	static const uint8_t test_data[] = "This is some test data to sign.";
	static const uint32_t test_size = sizeof(test_data);

	static void test_unpack_key(const struct vb21_packed_key *key)
	{
	struct vb2_public_key pubk;
	struct vb21_packed_key *key2;
	uint32_t size = key->c.total_size;

	/* Make a copy of the key for testing */
	key2 = (struct vb21_packed_key *)malloc(size);

	memcpy(key2, key, size);
	TEST_SUCC(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
	"vb21_unpack_key() ok");

	memcpy(key2, key, size);
	key2->key_offset += 4;
	TEST_EQ(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
	VB2_ERROR_COMMON_MEMBER_SIZE,
	"vb21_unpack_key() buffer too small");

	memcpy(key2, key, size);
	key2->c.fixed_size += size;
	TEST_EQ(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
	VB2_ERROR_COMMON_FIXED_SIZE,
	"vb21_unpack_key() buffer too small for desc");

	memcpy(key2, key, size);
	key2->c.desc_size = 0;
	TEST_SUCC(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
	"vb21_unpack_key() no desc");
	TEST_EQ(strcmp(pubk.desc, ""), 0, " empty desc string");

	memcpy(key2, key, size);
	key2->c.magic++;
	TEST_EQ(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
	VB2_ERROR_UNPACK_KEY_MAGIC,
	"vb21_unpack_key() bad magic");

	memcpy(key2, key, size);
	key2->c.struct_version_major++;
	TEST_EQ(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
	VB2_ERROR_UNPACK_KEY_STRUCT_VERSION,
	"vb21_unpack_key() bad major version");

	/*
	* Minor version changes are ok. Note that this test assumes that the
	* source key struct version is the highest actually known to the
	* reader. If the reader does know about minor version + 1 and that
	* adds fields, this test will likely fail. But at that point, we
	* should have already added a test for minor version compatibility to
	* handle both old and new struct versions, so someone will have
	* noticed this comment.
	*/
	memcpy(key2, key, size);
	key2->c.struct_version_minor++;
	TEST_SUCC(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
	"vb21_unpack_key() minor version change ok");

	memcpy(key2, key, size);
	key2->sig_alg = VB2_SIG_INVALID;
	TEST_EQ(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
	VB2_ERROR_UNPACK_KEY_SIG_ALGORITHM,
	"vb21_unpack_key() bad sig algorithm");

	memcpy(key2, key, size);
	key2->hash_alg = VB2_HASH_INVALID;
	TEST_EQ(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
	VB2_ERROR_UNPACK_KEY_HASH_ALGORITHM,
	"vb21_unpack_key() bad hash algorithm");

	memcpy(key2, key, size);
	key2->key_size -= 4;
	TEST_EQ(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
	VB2_ERROR_UNPACK_KEY_SIZE,
	"vb21_unpack_key() invalid size");

	memcpy(key2, key, size);
	key2->key_offset--;
	TEST_EQ(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
	VB2_ERROR_COMMON_MEMBER_UNALIGNED,
	"vb21_unpack_key() unaligned data");

	memcpy(key2, key, size);
	(uint32_t )((uint8_t *)key2 + key2->key_offset) /= 2;
	TEST_EQ(vb21_unpack_key(&pubk, (uint8_t *)key2, size),
	VB2_ERROR_UNPACK_KEY_ARRAY_SIZE,
	"vb21_unpack_key() invalid key array size");

	free(key2);
	}

	static void test_verify_signature(const struct vb21_signature *sig)
	{
	struct vb21_signature *sig2;
	uint8_t *buf2;
	uint32_t size;

	/* Make a copy of the signature */
	size = sig->c.total_size;
	buf2 = malloc(size);
	sig2 = (struct vb21_signature *)buf2;

	memcpy(buf2, sig, size);
	TEST_SUCC(vb21_verify_signature(sig2, size), "verify_sig ok");
	sig2->c.magic = VB21_MAGIC_PACKED_KEY;
	TEST_EQ(vb21_verify_signature(sig2, size), VB2_ERROR_SIG_MAGIC,
	"verify_sig magic");

	memcpy(buf2, sig, size);
	sig2->c.total_size += 4;
	TEST_EQ(vb21_verify_signature(sig2, size), VB2_ERROR_COMMON_TOTAL_SIZE,
	"verify_sig common header");

	memcpy(buf2, sig, size);
	sig2->c.struct_version_minor++;
	TEST_SUCC(vb21_verify_signature(sig2, size), "verify_sig minor ver");
	sig2->c.struct_version_major++;
	TEST_EQ(vb21_verify_signature(sig2, size), VB2_ERROR_SIG_VERSION,
	"verify_sig major ver");

	memcpy(buf2, sig, size);
	sig2->c.fixed_size -= 4;
	sig2->c.desc_size += 4;
	TEST_EQ(vb21_verify_signature(sig2, size), VB2_ERROR_SIG_HEADER_SIZE,
	"verify_sig header size");

	memcpy(buf2, sig, size);
	sig2->sig_size += 4;
	TEST_EQ(vb21_verify_signature(sig2, size), VB2_ERROR_COMMON_MEMBER_SIZE,
	"verify_sig sig size");

	memcpy(buf2, sig, size);
	sig2->sig_alg = VB2_SIG_INVALID;
	TEST_EQ(vb21_verify_signature(sig2, size), VB2_ERROR_SIG_ALGORITHM,
	"verify_sig sig alg");

	memcpy(buf2, sig, size);
	sig2->sig_alg = (sig2->sig_alg == VB2_SIG_NONE ?
	VB2_SIG_RSA1024 : VB2_SIG_NONE);
	TEST_EQ(vb21_verify_signature(sig2, size), VB2_ERROR_SIG_SIZE,
	"verify_sig sig size");

	free(buf2);
	}

	static void test_verify_data(const struct vb2_public_key *pubk_orig,
	const struct vb21_signature *sig)
	{
	uint8_t workbuf[VB2_VERIFY_DATA_WORKBUF_BYTES]
	__attribute__ ((aligned (VB2_WORKBUF_ALIGN)));
	struct vb2_workbuf wb;

	struct vb2_public_key pubk;
	struct vb21_signature *sig2;
	uint8_t *buf2;
	uint32_t size;

	vb2_workbuf_init(&wb, workbuf, sizeof(workbuf));

	pubk = *pubk_orig;

	/* Allocate signature copy for tests */
	size = sig->c.total_size;
	buf2 = malloc(size);
	sig2 = (struct vb21_signature *)buf2;

	memcpy(buf2, sig, size);
	pubk.sig_alg = VB2_SIG_INVALID;
	TEST_EQ(vb21_verify_data(test_data, test_size, sig2, &pubk, &wb),
	VB2_ERROR_VDATA_ALGORITHM, "vb21_verify_data() bad sig alg");
	pubk = *pubk_orig;

	memcpy(buf2, sig, size);
	pubk.hash_alg = VB2_HASH_INVALID;
	TEST_EQ(vb21_verify_data(test_data, test_size, sig2, &pubk, &wb),
	VB2_ERROR_VDATA_DIGEST_SIZE,
	"vb21_verify_data() bad hash alg");
	pubk = *pubk_orig;

	vb2_workbuf_init(&wb, workbuf, 4);
	memcpy(buf2, sig, size);
	TEST_EQ(vb21_verify_data(test_data, test_size, sig2, &pubk, &wb),
	VB2_ERROR_VDATA_WORKBUF_DIGEST,
	"vb21_verify_data() workbuf too small");
	vb2_workbuf_init(&wb, workbuf, sizeof(workbuf));

	memcpy(buf2, sig, size);
	TEST_EQ(vb21_verify_data(test_data, test_size, sig2, &pubk, &wb),
	0, "vb21_verify_data() ok");

	memcpy(buf2, sig, size);
	sig2->sig_size -= 16;
	TEST_EQ(vb21_verify_data(test_data, test_size, sig2, &pubk, &wb),
	VB2_ERROR_VDATA_SIG_SIZE, "vb21_verify_data() wrong sig size");

	memcpy(buf2, sig, size);
	TEST_EQ(vb21_verify_data(test_data, test_size - 1, sig2, &pubk, &wb),
	VB2_ERROR_VDATA_SIZE, "vb21_verify_data() wrong data size");

	memcpy(buf2, sig, size);
	sig2->hash_alg = (sig2->hash_alg == VB2_HASH_SHA1 ?
	VB2_HASH_SHA256 : VB2_HASH_SHA1);
	TEST_EQ(vb21_verify_data(test_data, test_size, sig2, &pubk, &wb),
	VB2_ERROR_VDATA_ALGORITHM_MISMATCH,
	"vb21_verify_data() alg mismatch");


	memcpy(buf2, sig, size);
	buf2[sig2->sig_offset] ^= 0x5A;
	TEST_EQ(vb21_verify_data(test_data, test_size, sig2, &pubk, &wb),
	VB2_ERROR_RSA_PADDING, "vb21_verify_data() wrong sig");

	free(buf2);
	}

	int test_algorithm(int key_algorithm, const char *keys_dir)
	{
	char filename[1024];

	enum vb2_signature_algorithm sig_alg =
	vb2_crypto_to_signature(key_algorithm);
	enum vb2_hash_algorithm hash_alg = vb2_crypto_to_hash(key_algorithm);

	struct vb2_private_key *prik = NULL;
	struct vb21_signature *sig2 = NULL;
	struct vb2_public_key *pubk;
	uint8_t *pubk_buf = 0;
	uint8_t *keyb_data = 0;
	uint32_t keyb_size;
	struct vb21_packed_key *key2 = NULL;

	printf("***Testing algorithm: %s\n",
	vb2_get_crypto_algorithm_name(key_algorithm));

	snprintf(filename, sizeof(filename), "%s/key_%s.pem",
	keys_dir,
	vb2_get_crypto_algorithm_file(key_algorithm));
	TEST_SUCC(vb2_private_key_read_pem(&prik, filename),
	"Read private key");
	prik->hash_alg = hash_alg;
	prik->sig_alg = sig_alg;
	vb2_private_key_set_desc(prik, "private key");


	/* Create the public key */
	TEST_SUCC(vb2_public_key_alloc(&pubk, sig_alg), "Allocate public key");
	/* Extract the keyb blob */
	TEST_SUCC(vb_keyb_from_rsa(prik->rsa_private_key,
	&keyb_data, &keyb_size),
	"Extract public key");

	/*
	* Copy the keyb blob to the public key's buffer, because that's
	* where vb2_unpack_key_data() and vb2_public_key_pack() expect
	* to find it.
	*/
	pubk_buf = vb2_public_key_packed_data(pubk);
	memcpy(pubk_buf, keyb_data, keyb_size);

	/* Fill in the internal struct pointers */
	TEST_SUCC(vb2_unpack_key_data(pubk, pubk_buf, keyb_size),
	"unpack public key blob");

	pubk->hash_alg = hash_alg;
	vb2_public_key_set_desc(pubk, "public key");
	TEST_SUCC(vb21_public_key_pack(&key2, pubk), "Pack public key");

	/* Calculate good signatures */
	TEST_SUCC(vb21_sign_data(&sig2, test_data, test_size, prik, ""),
	"Make test signature");

	test_unpack_key(key2);
	test_verify_data(pubk, sig2);
	test_verify_signature(sig2);

	free(keyb_data);
	free(key2);
	free(sig2);
	vb2_private_key_free(prik);
	vb2_public_key_free(pubk);

	return 0;
	}

	/* Test only the algorithms we use */
	const int key_algs[] = {
	VB2_ALG_RSA2048_SHA256,
	VB2_ALG_RSA4096_SHA256,
	VB2_ALG_RSA8192_SHA512,
	};

	int main(int argc, char *argv[]) {

	if (argc == 2) {
	int i;

	for (i = 0; i < ARRAY_SIZE(key_algs); i++) {
	if (test_algorithm(key_algs[i], argv[1]))
	return 1;
	}

	} else if (argc == 3 && !strcasecmp(argv[2], "--all")) {
	/* Test all the algorithms */
	int alg;

	for (alg = 0; alg < VB2_ALG_COUNT; alg++) {
	if (test_algorithm(alg, argv[1]))
	return 1;
	}

	} else {
	fprintf(stderr, "Usage: %s <keys_dir> [--all]", argv[0]);
	return -1;
	}

	return gTestSuccess ? 0 : 255;
	}