test/afalgtest.c

   1 /*
   2  * Copyright 2016-2020 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (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 /* We need to use some engine deprecated APIs */
  11 #define OPENSSL_SUPPRESS_DEPRECATED
  12
  13 #include <stdio.h>
  14 #include <openssl/opensslconf.h>
  15
  16 #include <string.h>
  17 #include <openssl/engine.h>
  18 #include <openssl/evp.h>
  19 #include <openssl/rand.h>
  20 #include "testutil.h"
  21
  22 /* Use a buffer size which is not aligned to block size */
  23 #define BUFFER_SIZE     17
  24
  25 #ifndef OPENSSL_NO_ENGINE
  26 static ENGINE *e;
  27 #endif
  28
  29
  30 #ifndef OPENSSL_NO_AFALGENG
  31 # include <linux/version.h>
  32 # define K_MAJ   4
  33 # define K_MIN1  1
  34 # define K_MIN2  0
  35 # if LINUX_VERSION_CODE < KERNEL_VERSION(K_MAJ, K_MIN1, K_MIN2)
  36 /*
  37  * If we get here then it looks like there is a mismatch between the linux
  38  * headers and the actual kernel version, so we have tried to compile with
  39  * afalg support, but then skipped it in e_afalg.c. As far as this test is
  40  * concerned we behave as if we had been configured without support
  41  */
  42 #  define OPENSSL_NO_AFALGENG
  43 # endif
  44 #endif
  45
  46 #ifndef OPENSSL_NO_AFALGENG
  47 static int test_afalg_aes_cbc(int keysize_idx)
  48 {
  49     EVP_CIPHER_CTX *ctx;
  50     const EVP_CIPHER *cipher;
  51     unsigned char ebuf[BUFFER_SIZE + 32];
  52     unsigned char dbuf[BUFFER_SIZE + 32];
  53     const unsigned char *enc_result = NULL;
  54     int encl, encf, decl, decf;
  55     int ret = 0;
  56     static const unsigned char key[] =
  57         "\x06\xa9\x21\x40\x36\xb8\xa1\x5b\x51\x2e\x03\xd5\x34\x12\x00\x06"
  58         "\x06\xa9\x21\x40\x36\xb8\xa1\x5b\x51\x2e\x03\xd5\x34\x12\x00\x06";
  59     static const unsigned char iv[] =
  60         "\x3d\xaf\xba\x42\x9d\x9e\xb4\x30\xb4\x22\xda\x80\x2c\x9f\xac\x41";
  61     /* input = "Single block msg\n" 17 Bytes*/
  62     static const unsigned char in[BUFFER_SIZE] =
  63         "\x53\x69\x6e\x67\x6c\x65\x20\x62\x6c\x6f\x63\x6b\x20\x6d\x73\x67"
  64         "\x0a";
  65     static const unsigned char encresult_128[BUFFER_SIZE] =
  66         "\xe3\x53\x77\x9c\x10\x79\xae\xb8\x27\x08\x94\x2d\xbe\x77\x18\x1a"
  67         "\x2d";
  68     static const unsigned char encresult_192[BUFFER_SIZE] =
  69         "\xf7\xe4\x26\xd1\xd5\x4f\x8f\x39\xb1\x9e\xe0\xdf\x61\xb9\xc2\x55"
  70         "\xeb";
  71     static const unsigned char encresult_256[BUFFER_SIZE] =
  72         "\xa0\x76\x85\xfd\xc1\x65\x71\x9d\xc7\xe9\x13\x6e\xae\x55\x49\xb4"
  73         "\x13";
  74
  75 #ifdef OSSL_SANITIZE_MEMORY
  76     /*
  77      * Initialise the encryption & decryption buffers to pacify the memory
  78      * sanitiser.  The sanitiser doesn't know that this memory is modified
  79      * by the engine, this tells it that all is good.
  80      */
  81     OPENSSL_cleanse(ebuf, sizeof(ebuf));
  82     OPENSSL_cleanse(dbuf, sizeof(dbuf));
  83 #endif
  84
  85     switch (keysize_idx) {
  86         case 0:
  87             cipher = EVP_aes_128_cbc();
  88             enc_result = &encresult_128[0];
  89             break;
  90         case 1:
  91             cipher = EVP_aes_192_cbc();
  92             enc_result = &encresult_192[0];
  93             break;
  94         case 2:
  95             cipher = EVP_aes_256_cbc();
  96             enc_result = &encresult_256[0];
  97             break;
  98         default:
  99             cipher = NULL;
 100     }
 101     if (!TEST_ptr(ctx = EVP_CIPHER_CTX_new()))
 102             return 0;
 103
 104     if (!TEST_true(EVP_CipherInit_ex(ctx, cipher, e, key, iv, 1))
 105             || !TEST_true(EVP_CipherUpdate(ctx, ebuf, &encl, in, BUFFER_SIZE))
 106             || !TEST_true(EVP_CipherFinal_ex(ctx, ebuf + encl, &encf)))
 107         goto end;
 108     encl += encf;
 109
 110     if (!TEST_mem_eq(enc_result, BUFFER_SIZE, ebuf, BUFFER_SIZE))
 111         goto end;
 112
 113     if (!TEST_true(EVP_CIPHER_CTX_reset(ctx))
 114             || !TEST_true(EVP_CipherInit_ex(ctx, cipher, e, key, iv, 0))
 115             || !TEST_true(EVP_CipherUpdate(ctx, dbuf, &decl, ebuf, encl))
 116             || !TEST_true(EVP_CipherFinal_ex(ctx, dbuf + decl, &decf)))
 117         goto end;
 118     decl += decf;
 119
 120     if (!TEST_int_eq(decl, BUFFER_SIZE)
 121             || !TEST_mem_eq(dbuf, BUFFER_SIZE, in, BUFFER_SIZE))
 122         goto end;
 123
 124     ret = 1;
 125
 126  end:
 127     EVP_CIPHER_CTX_free(ctx);
 128     return ret;
 129 }
 130 #endif
 131
 132 #ifndef OPENSSL_NO_ENGINE
 133 int global_init(void)
 134 {
 135     ENGINE_load_builtin_engines();
 136 # ifndef OPENSSL_NO_STATIC_ENGINE
 137     OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_AFALG, NULL);
 138 # endif
 139     return 1;
 140 }
 141 #endif
 142
 143 int setup_tests(void)
 144 {
 145 #ifndef OPENSSL_NO_ENGINE
 146     if ((e = ENGINE_by_id("afalg")) == NULL) {
 147         /* Probably a platform env issue, not a test failure. */
 148         TEST_info("Can't load AFALG engine");
 149     } else {
 150 # ifndef OPENSSL_NO_AFALGENG
 151         ADD_ALL_TESTS(test_afalg_aes_cbc, 3);
 152 # endif
 153     }
 154 #endif
 155
 156     return 1;
 157 }
 158
 159 #ifndef OPENSSL_NO_ENGINE
 160 void cleanup_tests(void)
 161 {
 162     ENGINE_free(e);
 163 }
 164 #endif