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themis_secure_cell.c
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themis_secure_cell.c
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/*
* Copyright (c) 2015 Cossack Labs Limited
*
* 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 "themis/themis_test.h"
#include <stdbool.h>
#include <string.h>
#include <soter/soter_rand.h>
/* Fuzz parameters */
#define MAX_KEY_SIZE 256
#define MAX_CONTEXT_SIZE 2048
#define MAX_MESSAGE_SIZE 4096
/* Keep it under 2^31 to support 32-bit systems. */
#define CORRUPTED_LENGTH 0x5AFE
#define DEFAULT_SYM_KEY_LENGTH 32
static uint8_t master_key[] =
"\x43\x68\x75\x75\x30\x65\x6a\x6f\x68\x63\x68\x65\x65\x66\x61\x69\x39\x61\x69\x74\x33\x56\x6f\x68\x78\x65\x77\x36\x78\x6f\x68\x54";
static char message[] = "secure cell test message by Mnatsakanov Andrey from Cossack Labs";
static char user_context[] = "secure cell user context";
static bool non_zero_buffer(const uint8_t* buffer, size_t length)
{
size_t i;
for (i = 0; i < length; i++) {
if (buffer[i] != 0) {
return true;
}
}
return false;
}
static bool different_buffers(const uint8_t* buffer1, size_t length1, const uint8_t* buffer2, size_t length2)
{
size_t min = (length1 < length2) ? length1 : length2;
if (memcmp(buffer1, buffer2, min) != 0) {
return true;
}
return length1 != length2;
}
static void secure_cell_key_generation(void)
{
themis_status_t res;
uint8_t master_key_1[MAX_KEY_SIZE];
uint8_t master_key_2[MAX_KEY_SIZE];
size_t master_key_1_length = 0;
size_t master_key_2_length = 0;
/*
* Normal usage of key generation API.
*/
res = themis_gen_sym_key(NULL, &master_key_1_length);
testsuite_fail_unless(res == THEMIS_BUFFER_TOO_SMALL, "keygen: query key size");
testsuite_fail_unless(master_key_1_length == DEFAULT_SYM_KEY_LENGTH,
"keygen: recommends default key size");
master_key_1_length = 0;
res = themis_gen_sym_key(master_key_1, &master_key_1_length);
testsuite_fail_unless(res == THEMIS_BUFFER_TOO_SMALL, "keygen: query key size (with buffer)");
testsuite_fail_unless(master_key_1_length == DEFAULT_SYM_KEY_LENGTH,
"keygen: recommends default key size");
size_t old_value = master_key_1_length;
res = themis_gen_sym_key(master_key_1, &master_key_1_length);
testsuite_fail_unless(res == THEMIS_SUCCESS, "keygen: generate recommended key");
testsuite_fail_unless(master_key_1_length == old_value, "keygen: key length unchanged");
master_key_1_length = MAX_KEY_SIZE;
res = themis_gen_sym_key(master_key_1, &master_key_1_length);
testsuite_fail_unless(res == THEMIS_SUCCESS, "keygen: generate extra-big key");
testsuite_fail_unless(master_key_1_length == MAX_KEY_SIZE, "keygen: key length unchanged");
master_key_1_length = 8;
res = themis_gen_sym_key(master_key_1, &master_key_1_length);
testsuite_fail_unless(res == THEMIS_SUCCESS, "keygen: generate small key");
testsuite_fail_unless(master_key_1_length == 8, "keygen: key length unchanged");
/*
* Verify that key generation is not bogus and returns new keys.
*/
memset(master_key_1, 0, sizeof(master_key_1));
memset(master_key_2, 0, sizeof(master_key_2));
master_key_1_length = MAX_KEY_SIZE;
master_key_2_length = MAX_KEY_SIZE;
res = themis_gen_sym_key(master_key_1, &master_key_1_length);
testsuite_fail_unless(res == THEMIS_SUCCESS, "keygen: generates key 1");
res = themis_gen_sym_key(master_key_2, &master_key_2_length);
testsuite_fail_unless(res == THEMIS_SUCCESS, "keygen: generates key 2");
testsuite_fail_unless(non_zero_buffer(master_key_1, master_key_1_length),
"keygen: returns nonzero key 1");
testsuite_fail_unless(non_zero_buffer(master_key_2, master_key_2_length),
"keygen: returns nonzero key 2");
testsuite_fail_unless(different_buffers(master_key_1, master_key_1_length, master_key_2, master_key_2_length),
"keygen: generates different keys");
/*
* Verify invalid input handling and error conditions.
*/
res = themis_gen_sym_key(NULL, NULL);
testsuite_fail_unless(res == THEMIS_INVALID_PARAMETER, "keygen: missing key length");
res = themis_gen_sym_key(master_key_1, NULL);
testsuite_fail_unless(res == THEMIS_INVALID_PARAMETER, "keygen: missing key length");
}
static int secure_cell_seal(void)
{
uint8_t* encrypted_message;
size_t encrypted_message_length = 0;
if (themis_secure_cell_encrypt_seal(master_key,
sizeof(master_key),
NULL,
0,
(uint8_t*)message,
sizeof(message),
NULL,
&encrypted_message_length)
!= THEMIS_BUFFER_TOO_SMALL
|| encrypted_message_length == 0) {
testsuite_fail_if(true,
"themis_secure_cell_encrypt_seal (encrypted_message_length determination) fail");
return -1;
}
encrypted_message = malloc(encrypted_message_length);
if (encrypted_message == NULL) {
testsuite_fail_if(true, "encrypted_message malloc fail");
return -2;
}
if (themis_secure_cell_encrypt_seal(master_key,
sizeof(master_key),
NULL,
0,
(uint8_t*)message,
sizeof(message),
encrypted_message,
&encrypted_message_length)
!= THEMIS_SUCCESS) {
testsuite_fail_if(true, "themis_secure_cell_encrypt_seal fail");
free(encrypted_message);
return -3;
}
uint8_t* decrypted_message;
size_t decrypted_message_length = 0;
if (themis_secure_cell_decrypt_seal(master_key,
sizeof(master_key),
NULL,
0,
encrypted_message,
encrypted_message_length,
NULL,
&decrypted_message_length)
!= THEMIS_BUFFER_TOO_SMALL
|| decrypted_message_length == 0) {
testsuite_fail_if(true,
"themis_secure_cell_decrypt_seal (decrypted_message_length determination) fail");
free(encrypted_message);
return -4;
}
decrypted_message = malloc(decrypted_message_length);
if (decrypted_message == NULL) {
testsuite_fail_if(true, "decrypted_message malloc fail");
free(encrypted_message);
return -5;
}
if (themis_secure_cell_decrypt_seal(master_key,
sizeof(master_key),
NULL,
0,
encrypted_message,
encrypted_message_length,
decrypted_message,
&decrypted_message_length)
!= THEMIS_SUCCESS) {
testsuite_fail_if(true, "themis_secure_cell_decrypt_seal fail");
free(encrypted_message);
free(decrypted_message);
return -6;
}
if (sizeof(message) != decrypted_message_length
|| memcmp((uint8_t*)message, decrypted_message, decrypted_message_length) != 0) {
testsuite_fail_if(true, "message and decrypted_message not equal");
free(encrypted_message);
free(decrypted_message);
return -6;
}
free(encrypted_message);
free(decrypted_message);
return 0;
}
static int secure_cell_token_protect(void)
{
uint8_t* encrypted_message;
size_t encrypted_message_length = 0;
uint8_t* context;
size_t context_length = 0;
if (themis_secure_cell_encrypt_token_protect(master_key,
sizeof(master_key),
NULL,
0,
(uint8_t*)message,
sizeof(message),
NULL,
&context_length,
NULL,
&encrypted_message_length)
!= THEMIS_BUFFER_TOO_SMALL
|| encrypted_message_length == 0) {
testsuite_fail_if(true,
"themis_secure_cell_encrypt_token_protect "
"(encrypted_message_length determination) fail");
return -1;
}
if (encrypted_message_length != sizeof(message)) {
testsuite_fail_if(true,
"themis_secure_cell_encrypt_token_protect "
"(encrypted_message_length != message length) fail");
return -1;
}
encrypted_message = malloc(encrypted_message_length);
if (encrypted_message == NULL) {
testsuite_fail_if(true, "encrypted_message malloc fail");
return -2;
}
context = malloc(context_length);
if (context == NULL) {
testsuite_fail_if(true, "context malloc fail");
free(encrypted_message);
return -2;
}
if (themis_secure_cell_encrypt_token_protect(master_key,
sizeof(master_key),
NULL,
0,
(uint8_t*)message,
sizeof(message),
context,
&context_length,
encrypted_message,
&encrypted_message_length)
!= THEMIS_SUCCESS) {
testsuite_fail_if(true, "themis_secure_cell_encrypt_token_protect fail");
free(encrypted_message);
free(context);
return -3;
}
if (encrypted_message_length != sizeof(message)) {
testsuite_fail_if(true,
"themis_secure_cell_encrypt_token_protect "
"(encrypted_message_length != message length) fail");
free(encrypted_message);
free(context);
return -3;
}
uint8_t* decrypted_message;
size_t decrypted_message_length = 0;
if (themis_secure_cell_decrypt_token_protect(master_key,
sizeof(master_key),
NULL,
0,
encrypted_message,
encrypted_message_length,
context,
context_length,
NULL,
&decrypted_message_length)
!= THEMIS_BUFFER_TOO_SMALL
|| decrypted_message_length == 0) {
testsuite_fail_if(true,
"themis_secure_cell_decrypt_token_protect "
"(decrypted_message_length determination) fail");
free(encrypted_message);
free(context);
return -4;
}
decrypted_message = malloc(decrypted_message_length);
if (decrypted_message == NULL) {
testsuite_fail_if(true, "decrypted_message malloc fail");
free(encrypted_message);
free(context);
return -5;
}
if (themis_secure_cell_decrypt_token_protect(master_key,
sizeof(master_key),
NULL,
0,
encrypted_message,
encrypted_message_length,
context,
context_length,
decrypted_message,
&decrypted_message_length)
!= THEMIS_SUCCESS) {
testsuite_fail_if(true, "themis_secure_cell_decrypt_token_protect fail");
free(encrypted_message);
free(decrypted_message);
free(context);
return -6;
}
if (sizeof(message) != decrypted_message_length
|| memcmp((uint8_t*)message, decrypted_message, decrypted_message_length) != 0) {
testsuite_fail_if(true, "message and decrypted_message not equal");
free(encrypted_message);
free(decrypted_message);
free(context);
return -7;
}
free(encrypted_message);
free(decrypted_message);
free(context);
return 0;
}
static int secure_cell_context_imprint(void)
{
uint8_t* encrypted_message;
size_t encrypted_message_length = 0;
if (themis_secure_cell_encrypt_context_imprint(master_key,
sizeof(master_key),
(uint8_t*)message,
sizeof(message),
(uint8_t*)user_context,
strlen(user_context),
NULL,
&encrypted_message_length)
!= THEMIS_BUFFER_TOO_SMALL
|| encrypted_message_length == 0) {
testsuite_fail_if(true,
"themis_secure_cell_encrypt_context_imprint "
"(encrypted_message_length determination) fail");
return -1;
}
encrypted_message = malloc(encrypted_message_length);
if (encrypted_message == NULL) {
testsuite_fail_if(true, "encrypted_message malloc fail");
return -2;
}
if (themis_secure_cell_encrypt_context_imprint(master_key,
sizeof(master_key),
(uint8_t*)message,
sizeof(message),
(uint8_t*)user_context,
strlen(user_context),
encrypted_message,
&encrypted_message_length)
!= THEMIS_SUCCESS) {
testsuite_fail_if(true, "themis_secure_cell_encrypt_context_imprint fail");
free(encrypted_message);
return -3;
}
uint8_t* decrypted_message;
size_t decrypted_message_length = 0;
if (themis_secure_cell_decrypt_context_imprint(master_key,
sizeof(master_key),
encrypted_message,
encrypted_message_length,
(uint8_t*)user_context,
strlen(user_context),
NULL,
&decrypted_message_length)
!= THEMIS_BUFFER_TOO_SMALL
|| decrypted_message_length == 0) {
testsuite_fail_if(true,
"themis_secure_cell_decrypt_context_imprint "
"(decrypted_message_length determination) fail");
free(encrypted_message);
return -4;
}
decrypted_message = malloc(decrypted_message_length);
if (decrypted_message == NULL) {
testsuite_fail_if(true, "decrypted_message malloc fail");
free(encrypted_message);
return -5;
}
if (themis_secure_cell_encrypt_context_imprint(master_key,
sizeof(master_key),
encrypted_message,
encrypted_message_length,
(uint8_t*)user_context,
strlen(user_context),
decrypted_message,
&decrypted_message_length)
!= THEMIS_SUCCESS) {
testsuite_fail_if(true, "themis_secure_cell_decrypt_context_imprint fail");
free(encrypted_message);
free(decrypted_message);
return -6;
}
if (sizeof(message) != decrypted_message_length
|| memcmp((uint8_t*)message, decrypted_message, decrypted_message_length) != 0) {
testsuite_fail_if(true, "message and decrypted_message not equal");
free(encrypted_message);
free(decrypted_message);
return -7;
}
free(encrypted_message);
free(decrypted_message);
return 0;
}
static void secure_cell_test(void)
{
testsuite_fail_if(secure_cell_seal(), "secure cell seal mode");
testsuite_fail_if(secure_cell_token_protect(), "secure cell token protect mode");
testsuite_fail_if(secure_cell_context_imprint(), "secure cell context imprint mode");
}
/*
* Make sure that we always return correct and consistent lengths, regardless of input.
*/
static void secure_cell_test_lengths(void)
{
themis_status_t res;
uint8_t encrypted_buffer[MAX_MESSAGE_SIZE];
uint8_t authtoken_buffer[MAX_MESSAGE_SIZE];
size_t encrypted_length;
size_t encrypted_length_measured;
size_t authtoken_length;
size_t authtoken_length_measured;
/* Seal mode */
encrypted_length_measured = sizeof(encrypted_buffer);
res = themis_secure_cell_encrypt_seal((const uint8_t*)"master key",
strlen("master key"),
(const uint8_t*)"my context",
strlen("my context"),
(const uint8_t*)"a message!",
strlen("a message!"),
NULL,
&encrypted_length_measured);
testsuite_fail_unless(res == THEMIS_BUFFER_TOO_SMALL, "seal: measuring length");
encrypted_length = sizeof(encrypted_buffer);
res = themis_secure_cell_encrypt_seal((const uint8_t*)"master key",
strlen("master key"),
(const uint8_t*)"my context",
strlen("my context"),
(const uint8_t*)"a message!",
strlen("a message!"),
encrypted_buffer,
&encrypted_length);
testsuite_fail_unless(res == THEMIS_SUCCESS, "seal: encrypting buffer");
testsuite_fail_unless(encrypted_length == encrypted_length_measured,
"seal: returned message length");
/* Token protect mode */
authtoken_length_measured = sizeof(authtoken_buffer);
encrypted_length_measured = sizeof(encrypted_buffer);
res = themis_secure_cell_encrypt_token_protect((const uint8_t*)"master key",
strlen("master key"),
(const uint8_t*)"my context",
strlen("my context"),
(const uint8_t*)"a message!",
strlen("a message!"),
NULL,
&authtoken_length_measured,
NULL,
&encrypted_length_measured);
testsuite_fail_unless(res == THEMIS_BUFFER_TOO_SMALL, "token protect: measuring length");
authtoken_length = sizeof(authtoken_buffer);
encrypted_length = sizeof(encrypted_buffer);
res = themis_secure_cell_encrypt_token_protect((const uint8_t*)"master key",
strlen("master key"),
(const uint8_t*)"my context",
strlen("my context"),
(const uint8_t*)"a message!",
strlen("a message!"),
authtoken_buffer,
&authtoken_length,
encrypted_buffer,
&encrypted_length);
testsuite_fail_unless(res == THEMIS_SUCCESS, "token protect: encrypting buffer");
testsuite_fail_unless(authtoken_length == authtoken_length_measured,
"token protect: returned auth token length");
testsuite_fail_unless(encrypted_length == encrypted_length_measured,
"token protect: returned message length");
/* Context imprint mode */
encrypted_length_measured = sizeof(encrypted_buffer);
res = themis_secure_cell_encrypt_context_imprint((const uint8_t*)"master key",
strlen("master key"),
(const uint8_t*)"a message!",
strlen("a message!"),
(const uint8_t*)"my context",
strlen("my context"),
NULL,
&encrypted_length_measured);
testsuite_fail_unless(res == THEMIS_BUFFER_TOO_SMALL, "context imprint: measuring length");
encrypted_length = sizeof(encrypted_buffer);
res = themis_secure_cell_encrypt_context_imprint((const uint8_t*)"master key",
strlen("master key"),
(const uint8_t*)"a message!",
strlen("a message!"),
(const uint8_t*)"my context",
strlen("my context"),
encrypted_buffer,
&encrypted_length);
testsuite_fail_unless(res == THEMIS_SUCCESS, "context imprint: encrypting buffer");
testsuite_fail_unless(encrypted_length == encrypted_length_measured,
"context imprint: returned message length");
}
static void secure_cell_api_test_seal(void)
{
uint8_t key[MAX_KEY_SIZE];
uint8_t message[MAX_MESSAGE_SIZE];
size_t key_length = rand_int(MAX_KEY_SIZE);
size_t message_length = rand_int(MAX_MESSAGE_SIZE);
uint8_t* encrypted = NULL;
size_t encrypted_length;
uint8_t* decrypted = NULL;
size_t decrypted_length;
if (THEMIS_SUCCESS != soter_rand(key, key_length)) {
testsuite_fail_if(true, "soter_rand fail");
return;
}
if (THEMIS_SUCCESS != soter_rand(message, message_length)) {
testsuite_fail_if(true, "soter_rand fail");
return;
}
testsuite_fail_unless(THEMIS_BUFFER_TOO_SMALL
== themis_secure_cell_encrypt_seal(key,
key_length,
NULL,
0,
message,
message_length,
NULL,
&encrypted_length),
"themis_secure_cell_encrypt_seal: get output size (NULL out buffer)");
encrypted = malloc(encrypted_length);
if (!encrypted) {
testsuite_fail_if(true, "malloc fail");
return;
}
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_encrypt_seal(NULL,
key_length,
NULL,
0,
message,
message_length,
encrypted,
&encrypted_length),
"themis_secure_cell_encrypt_seal: invalid key");
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_encrypt_seal(key,
0,
NULL,
0,
message,
message_length,
encrypted,
&encrypted_length),
"themis_secure_cell_encrypt_seal: invalid key length");
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_encrypt_seal(key,
key_length,
NULL,
0,
NULL,
message_length,
encrypted,
&encrypted_length),
"themis_secure_cell_encrypt_seal: invalid message");
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_encrypt_seal(key,
key_length,
NULL,
0,
message,
0,
encrypted,
&encrypted_length),
"themis_secure_cell_encrypt_seal: invalid message length");
encrypted_length--;
testsuite_fail_unless(THEMIS_BUFFER_TOO_SMALL
== themis_secure_cell_encrypt_seal(key,
key_length,
NULL,
0,
message,
message_length,
encrypted,
&encrypted_length),
"themis_secure_cell_encrypt_seal: get output size (small out buffer)");
testsuite_fail_unless(THEMIS_SUCCESS
== themis_secure_cell_encrypt_seal(key,
key_length,
NULL,
0,
message,
message_length,
encrypted,
&encrypted_length),
"themis_secure_cell_encrypt_seal: normal flow");
testsuite_fail_unless(THEMIS_BUFFER_TOO_SMALL
== themis_secure_cell_decrypt_seal(key,
key_length,
NULL,
0,
encrypted,
encrypted_length,
NULL,
&decrypted_length),
"themis_secure_cell_decrypt_seal: get output size (NULL out buffer)");
decrypted = malloc(decrypted_length);
if (!decrypted) {
testsuite_fail_if(true, "malloc fail");
free(encrypted);
return;
}
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_decrypt_seal(NULL,
key_length,
NULL,
0,
encrypted,
encrypted_length,
decrypted,
&decrypted_length),
"themis_secure_cell_decrypt_seal: invalid key");
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_decrypt_seal(key,
0,
NULL,
0,
encrypted,
encrypted_length,
decrypted,
&decrypted_length),
"themis_secure_cell_decrypt_seal: invalid key length");
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_decrypt_seal(key,
key_length,
NULL,
0,
NULL,
encrypted_length,
decrypted,
&decrypted_length),
"themis_secure_cell_decrypt_seal: invalid message");
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_decrypt_seal(key,
key_length,
NULL,
0,
encrypted,
0,
decrypted,
&decrypted_length),
"themis_secure_cell_decrypt_seal: invalid message length");
decrypted_length--;
testsuite_fail_unless(THEMIS_BUFFER_TOO_SMALL
== themis_secure_cell_decrypt_seal(key,
key_length,
NULL,
0,
encrypted,
encrypted_length,
decrypted,
&decrypted_length),
"themis_secure_cell_decrypt_seal: get output size (small out buffer)");
encrypted[0]++;
testsuite_fail_unless(THEMIS_FAIL
== themis_secure_cell_decrypt_seal(key,
key_length,
NULL,
0,
encrypted,
encrypted_length,
decrypted,
&decrypted_length),
"themis_secure_cell_decrypt_seal: header corrupt");
encrypted[0]--;
encrypted[encrypted_length / 2]++;
testsuite_fail_unless(THEMIS_FAIL
== themis_secure_cell_decrypt_seal(key,
key_length,
NULL,
0,
encrypted,
encrypted_length,
decrypted,
&decrypted_length),
"themis_secure_cell_decrypt_seal: message corrupt");
encrypted[encrypted_length / 2]--;
encrypted[encrypted_length - 1]++;
testsuite_fail_unless(THEMIS_FAIL
== themis_secure_cell_decrypt_seal(key,
key_length,
NULL,
0,
encrypted,
encrypted_length,
decrypted,
&decrypted_length),
"themis_secure_cell_decrypt_seal: tag corrupt");
encrypted[encrypted_length - 1]--;
testsuite_fail_unless(THEMIS_SUCCESS
== themis_secure_cell_decrypt_seal(key,
key_length,
NULL,
0,
encrypted,
encrypted_length,
decrypted,
&decrypted_length)
&& (message_length == decrypted_length)
&& !memcmp(message, decrypted, message_length),
"themis_secure_cell_decrypt_seal: normal flow");
free(decrypted);
free(encrypted);
}
static void secure_cell_api_test_context_imprint(void)
{
uint8_t key[MAX_KEY_SIZE];
uint8_t context[MAX_CONTEXT_SIZE];
uint8_t message[MAX_MESSAGE_SIZE];
size_t key_length = rand_int(MAX_KEY_SIZE);
size_t context_length = rand_int(MAX_CONTEXT_SIZE);
size_t message_length = rand_int(MAX_MESSAGE_SIZE);
uint8_t encrypted[MAX_MESSAGE_SIZE];
size_t encrypted_length = message_length;
uint8_t decrypted[MAX_MESSAGE_SIZE];
size_t decrypted_length = message_length;
if (THEMIS_SUCCESS != soter_rand(key, key_length)) {
testsuite_fail_if(true, "soter_rand fail");
return;
}
if (THEMIS_SUCCESS != soter_rand(context, context_length)) {
testsuite_fail_if(true, "soter_rand fail");
return;
}
if (THEMIS_SUCCESS != soter_rand(message, message_length)) {
testsuite_fail_if(true, "soter_rand fail");
return;
}
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_encrypt_context_imprint(NULL,
key_length,
message,
message_length,
context,
context_length,
encrypted,
&encrypted_length),
"themis_secure_cell_encrypt_context_imprint: invalid key");
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_encrypt_context_imprint(key,
0,
message,
message_length,
context,
context_length,
encrypted,
&encrypted_length),
"themis_secure_cell_encrypt_context_imprint: invalid key length");
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_encrypt_context_imprint(key,
key_length,
NULL,
message_length,
context,
context_length,
encrypted,
&encrypted_length),
"themis_secure_cell_encrypt_context_imprint: invalid message");
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_encrypt_context_imprint(key,
key_length,
message,
0,
context,
context_length,
encrypted,
&encrypted_length),
"themis_secure_cell_encrypt_context_imprint: invalid message length");
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_encrypt_context_imprint(key,
key_length,
message,
message_length,
NULL,
context_length,
encrypted,
&encrypted_length),
"themis_secure_cell_encrypt_context_imprint: invalid context");
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_encrypt_context_imprint(key,
key_length,
message,
message_length,
context,
0,
encrypted,
&encrypted_length),
"themis_secure_cell_encrypt_context_imprint: invalid context length");
testsuite_fail_unless((THEMIS_BUFFER_TOO_SMALL
== themis_secure_cell_encrypt_context_imprint(key,
key_length,
message,
message_length,
context,
context_length,
NULL,
&encrypted_length))
&& (encrypted_length == message_length),
"themis_secure_cell_encrypt_context_imprint: get output size (NULL out buffer)");
encrypted_length--;
testsuite_fail_unless((THEMIS_BUFFER_TOO_SMALL
== themis_secure_cell_encrypt_context_imprint(key,
key_length,
message,
message_length,
context,
context_length,
encrypted,
&encrypted_length))
&& (encrypted_length == message_length),
"themis_secure_cell_encrypt_context_imprint: get output size (small out buffer)");
testsuite_fail_unless((THEMIS_SUCCESS
== themis_secure_cell_encrypt_context_imprint(key,
key_length,
message,
message_length,
context,
context_length,
encrypted,
&encrypted_length))
&& (encrypted_length == message_length),
"themis_secure_cell_encrypt_context_imprint: normal flow");
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_decrypt_context_imprint(NULL,
key_length,
encrypted,
encrypted_length,
context,
context_length,
decrypted,
&decrypted_length),
"themis_secure_cell_decrypt_context_imprint: invalid key");
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_decrypt_context_imprint(key,
0,
encrypted,
encrypted_length,
context,
context_length,
decrypted,
&decrypted_length),
"themis_secure_cell_decrypt_context_imprint: invalid key length");
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_decrypt_context_imprint(key,
key_length,
NULL,
encrypted_length,
context,
context_length,
decrypted,
&decrypted_length),
"themis_secure_cell_decrypt_context_imprint: invalid message");
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_decrypt_context_imprint(key,
key_length,
encrypted,
0,
context,
context_length,
decrypted,
&decrypted_length),
"themis_secure_cell_decrypt_context_imprint: invalid message length");
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_decrypt_context_imprint(key,
key_length,
encrypted,
encrypted_length,
NULL,
context_length,
decrypted,
&decrypted_length),
"themis_secure_cell_decrypt_context_imprint: invalid context");
testsuite_fail_unless(THEMIS_INVALID_PARAMETER
== themis_secure_cell_decrypt_context_imprint(key,
key_length,
encrypted,
encrypted_length,
context,
0,
decrypted,
&decrypted_length),
"themis_secure_cell_decrypt_context_imprint: invalid context length");
testsuite_fail_unless((THEMIS_BUFFER_TOO_SMALL
== themis_secure_cell_decrypt_context_imprint(key,
key_length,
encrypted,
encrypted_length,
context,
context_length,
NULL,
&decrypted_length))
&& (decrypted_length == encrypted_length),
"themis_secure_cell_decrypt_context_imprint: get output size (NULL out buffer)");
decrypted_length--;
testsuite_fail_unless((THEMIS_BUFFER_TOO_SMALL
== themis_secure_cell_decrypt_context_imprint(key,
key_length,
encrypted,
encrypted_length,
context,
context_length,
decrypted,
&decrypted_length))
&& (decrypted_length == encrypted_length),
"themis_secure_cell_decrypt_context_imprint: get output size (small out buffer)");
testsuite_fail_unless(THEMIS_SUCCESS