afalgtest.c revision 1.1.1.2 
1/*
2 * Copyright 2016-2017 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License").  You may not use
5 * this file except in compliance with the License.  You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#include <stdio.h>
11#include <openssl/opensslconf.h>
12
13#include <string.h>
14#include <openssl/engine.h>
15#include <openssl/evp.h>
16#include <openssl/rand.h>
17#include "testutil.h"
18
19/* Use a buffer size which is not aligned to block size */
20#define BUFFER_SIZE     17
21
22#ifndef OPENSSL_NO_ENGINE
23static ENGINE *e;
24#endif
25
26
27#ifndef OPENSSL_NO_AFALGENG
28# include <linux/version.h>
29# define K_MAJ   4
30# define K_MIN1  1
31# define K_MIN2  0
32# if LINUX_VERSION_CODE < KERNEL_VERSION(K_MAJ, K_MIN1, K_MIN2)
33/*
34 * If we get here then it looks like there is a mismatch between the linux
35 * headers and the actual kernel version, so we have tried to compile with
36 * afalg support, but then skipped it in e_afalg.c. As far as this test is
37 * concerned we behave as if we had been configured without support
38 */
39#  define OPENSSL_NO_AFALGENG
40# endif
41#endif
42
43#ifndef OPENSSL_NO_AFALGENG
44static int test_afalg_aes_cbc(int keysize_idx)
45{
46    EVP_CIPHER_CTX *ctx;
47    const EVP_CIPHER *cipher;
48    unsigned char key[] = "\x06\xa9\x21\x40\x36\xb8\xa1\x5b"
49                          "\x51\x2e\x03\xd5\x34\x12\x00\x06"
50                          "\x06\xa9\x21\x40\x36\xb8\xa1\x5b"
51                          "\x51\x2e\x03\xd5\x34\x12\x00\x06";
52    unsigned char iv[] = "\x3d\xaf\xba\x42\x9d\x9e\xb4\x30"
53                         "\xb4\x22\xda\x80\x2c\x9f\xac\x41";
54    /* input = "Single block msg\n"  17Bytes*/
55    unsigned char in[BUFFER_SIZE] = "\x53\x69\x6e\x67\x6c\x65\x20\x62"
56                                    "\x6c\x6f\x63\x6b\x20\x6d\x73\x67\x0a";
57    unsigned char ebuf[BUFFER_SIZE + 32];
58    unsigned char dbuf[BUFFER_SIZE + 32];
59    unsigned char encresult_128[] = "\xe3\x53\x77\x9c\x10\x79\xae\xb8"
60                                    "\x27\x08\x94\x2d\xbe\x77\x18\x1a\x2d";
61    unsigned char encresult_192[] = "\xf7\xe4\x26\xd1\xd5\x4f\x8f\x39"
62                                    "\xb1\x9e\xe0\xdf\x61\xb9\xc2\x55\xeb";
63    unsigned char encresult_256[] = "\xa0\x76\x85\xfd\xc1\x65\x71\x9d"
64                                    "\xc7\xe9\x13\x6e\xae\x55\x49\xb4\x13";
65    unsigned char *enc_result = NULL;
66
67    int encl, encf, decl, decf;
68    int ret = 0;
69
70    switch (keysize_idx) {
71        case 0:
72            cipher = EVP_aes_128_cbc();
73            enc_result = &encresult_128[0];
74            break;
75        case 1:
76            cipher = EVP_aes_192_cbc();
77            enc_result = &encresult_192[0];
78            break;
79        case 2:
80            cipher = EVP_aes_256_cbc();
81            enc_result = &encresult_256[0];
82            break;
83        default:
84            cipher = NULL;
85    }
86    if (!TEST_ptr(ctx = EVP_CIPHER_CTX_new()))
87            return 0;
88
89    if (!TEST_true(EVP_CipherInit_ex(ctx, cipher, e, key, iv, 1))
90            || !TEST_true(EVP_CipherUpdate(ctx, ebuf, &encl, in, BUFFER_SIZE))
91            || !TEST_true(EVP_CipherFinal_ex(ctx, ebuf+encl, &encf)))
92        goto end;
93    encl += encf;
94
95    if (!TEST_mem_eq(enc_result, BUFFER_SIZE, ebuf, BUFFER_SIZE))
96        goto end;
97
98    if (!TEST_true(EVP_CIPHER_CTX_reset(ctx))
99            || !TEST_true(EVP_CipherInit_ex(ctx, cipher, e, key, iv, 0))
100            || !TEST_true(EVP_CipherUpdate(ctx, dbuf, &decl, ebuf, encl))
101            || !TEST_true(EVP_CipherFinal_ex(ctx, dbuf+decl, &decf)))
102        goto end;
103    decl += decf;
104
105    if (!TEST_int_eq(decl, BUFFER_SIZE)
106            || !TEST_mem_eq(dbuf, BUFFER_SIZE, in, BUFFER_SIZE))
107        goto end;
108
109    ret = 1;
110
111 end:
112    EVP_CIPHER_CTX_free(ctx);
113    return ret;
114}
115#endif
116
117#ifndef OPENSSL_NO_ENGINE
118int global_init(void)
119{
120    ENGINE_load_builtin_engines();
121# ifndef OPENSSL_NO_STATIC_ENGINE
122    OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_AFALG, NULL);
123# endif
124    return 1;
125}
126#endif
127
128int setup_tests(void)
129{
130#ifndef OPENSSL_NO_ENGINE
131    if ((e = ENGINE_by_id("afalg")) == NULL) {
132        /* Probably a platform env issue, not a test failure. */
133        TEST_info("Can't load AFALG engine");
134    } else {
135# ifndef OPENSSL_NO_AFALGENG
136        ADD_ALL_TESTS(test_afalg_aes_cbc, 3);
137# endif
138    }
139#endif
140
141    return 1;
142}
143
144#ifndef OPENSSL_NO_ENGINE
145void cleanup_tests(void)
146{
147    ENGINE_free(e);
148}
149#endif
150