1/*
2 * Copyright 2016-2021 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
25static int test_afalg_aes_cbc(int keysize_idx)
26{
27    EVP_CIPHER_CTX *ctx;
28    const EVP_CIPHER *cipher;
29    unsigned char key[] = "\x06\xa9\x21\x40\x36\xb8\xa1\x5b"
30                          "\x51\x2e\x03\xd5\x34\x12\x00\x06"
31                          "\x06\xa9\x21\x40\x36\xb8\xa1\x5b"
32                          "\x51\x2e\x03\xd5\x34\x12\x00\x06";
33    unsigned char iv[] = "\x3d\xaf\xba\x42\x9d\x9e\xb4\x30"
34                         "\xb4\x22\xda\x80\x2c\x9f\xac\x41";
35    /* input = "Single block msg\n"  17Bytes*/
36    unsigned char in[BUFFER_SIZE] = "\x53\x69\x6e\x67\x6c\x65\x20\x62"
37                                    "\x6c\x6f\x63\x6b\x20\x6d\x73\x67\x0a";
38    unsigned char ebuf[BUFFER_SIZE + 32];
39    unsigned char dbuf[BUFFER_SIZE + 32];
40    unsigned char encresult_128[] = "\xe3\x53\x77\x9c\x10\x79\xae\xb8"
41                                    "\x27\x08\x94\x2d\xbe\x77\x18\x1a\x2d";
42    unsigned char encresult_192[] = "\xf7\xe4\x26\xd1\xd5\x4f\x8f\x39"
43                                    "\xb1\x9e\xe0\xdf\x61\xb9\xc2\x55\xeb";
44    unsigned char encresult_256[] = "\xa0\x76\x85\xfd\xc1\x65\x71\x9d"
45                                    "\xc7\xe9\x13\x6e\xae\x55\x49\xb4\x13";
46    unsigned char *enc_result = NULL;
47
48    int encl, encf, decl, decf;
49    int ret = 0;
50
51    switch (keysize_idx) {
52        case 0:
53            cipher = EVP_aes_128_cbc();
54            enc_result = &encresult_128[0];
55            break;
56        case 1:
57            cipher = EVP_aes_192_cbc();
58            enc_result = &encresult_192[0];
59            break;
60        case 2:
61            cipher = EVP_aes_256_cbc();
62            enc_result = &encresult_256[0];
63            break;
64        default:
65            cipher = NULL;
66    }
67    if (!TEST_ptr(ctx = EVP_CIPHER_CTX_new()))
68            return 0;
69
70    if (!TEST_true(EVP_CipherInit_ex(ctx, cipher, e, key, iv, 1))
71            || !TEST_true(EVP_CipherUpdate(ctx, ebuf, &encl, in, BUFFER_SIZE))
72            || !TEST_true(EVP_CipherFinal_ex(ctx, ebuf+encl, &encf)))
73        goto end;
74    encl += encf;
75
76    if (!TEST_mem_eq(enc_result, BUFFER_SIZE, ebuf, BUFFER_SIZE))
77        goto end;
78
79    if (!TEST_true(EVP_CIPHER_CTX_reset(ctx))
80            || !TEST_true(EVP_CipherInit_ex(ctx, cipher, e, key, iv, 0))
81            || !TEST_true(EVP_CipherUpdate(ctx, dbuf, &decl, ebuf, encl))
82            || !TEST_true(EVP_CipherFinal_ex(ctx, dbuf+decl, &decf)))
83        goto end;
84    decl += decf;
85
86    if (!TEST_int_eq(decl, BUFFER_SIZE)
87            || !TEST_mem_eq(dbuf, BUFFER_SIZE, in, BUFFER_SIZE))
88        goto end;
89
90    ret = 1;
91
92 end:
93    EVP_CIPHER_CTX_free(ctx);
94    return ret;
95}
96
97static int test_pr16743(void)
98{
99    int ret = 0;
100    const EVP_CIPHER * cipher;
101    EVP_CIPHER_CTX *ctx;
102
103    if (!TEST_true(ENGINE_init(e)))
104        return 0;
105    cipher = ENGINE_get_cipher(e, NID_aes_128_cbc);
106    ctx = EVP_CIPHER_CTX_new();
107    if (cipher != NULL && ctx != NULL)
108        ret = EVP_EncryptInit_ex(ctx, cipher, e, NULL, NULL);
109    TEST_true(ret);
110    EVP_CIPHER_CTX_free(ctx);
111    ENGINE_finish(e);
112    return ret;
113}
114
115int global_init(void)
116{
117    ENGINE_load_builtin_engines();
118# ifndef OPENSSL_NO_STATIC_ENGINE
119    OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_AFALG, NULL);
120# endif
121    return 1;
122}
123#endif
124
125int setup_tests(void)
126{
127#ifndef OPENSSL_NO_ENGINE
128    if ((e = ENGINE_by_id("afalg")) == NULL) {
129        /* Probably a platform env issue, not a test failure. */
130        TEST_info("Can't load AFALG engine");
131    } else {
132        ADD_ALL_TESTS(test_afalg_aes_cbc, 3);
133        ADD_TEST(test_pr16743);
134    }
135#endif
136
137    return 1;
138}
139
140#ifndef OPENSSL_NO_ENGINE
141void cleanup_tests(void)
142{
143    ENGINE_free(e);
144}
145#endif
146