legacy-libs/grpc-cloned/deps/grpc/third_party/boringssl/crypto/evp/pbkdf_test.cc

   1 /* Copyright (c) 2015, Google Inc.
   2  *
   3  * Permission to use, copy, modify, and/or distribute this software for any
   4  * purpose with or without fee is hereby granted, provided that the above
   5  * copyright notice and this permission notice appear in all copies.
   6  *
   7  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   8  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   9  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  10  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  11  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  12  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  13  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
  14
  15 #include <gtest/gtest.h>
  16
  17 #include <openssl/digest.h>
  18 #include <openssl/evp.h>
  19
  20 #include "../internal.h"
  21 #include "../test/test_util.h"
  22
  23
  24 // Tests deriving a key using an empty password (specified both as NULL and as
  25 // non-NULL). Note that NULL has special meaning to HMAC initialization.
  26 TEST(PBKDFTest, EmptyPassword) {
  27   const uint8_t kKey[] = {0xa3, 0x3d, 0xdd, 0xc3, 0x04, 0x78, 0x18,
  28                           0x55, 0x15, 0x31, 0x1f, 0x87, 0x52, 0x89,
  29                           0x5d, 0x36, 0xea, 0x43, 0x63, 0xa2};
  30   uint8_t key[sizeof(kKey)];
  31
  32   ASSERT_TRUE(PKCS5_PBKDF2_HMAC(NULL, 0, (const uint8_t *)"salt", 4, 1,
  33                                 EVP_sha1(), sizeof(kKey), key));
  34   EXPECT_EQ(Bytes(kKey), Bytes(key));
  35
  36   ASSERT_TRUE(PKCS5_PBKDF2_HMAC("", 0, (const uint8_t *)"salt", 4, 1,
  37                                 EVP_sha1(), sizeof(kKey), key));
  38   EXPECT_EQ(Bytes(kKey), Bytes(key));
  39 }
  40
  41 // Tests deriving a key using an empty salt. Note that the expectation was
  42 // generated using OpenSSL itself, and hence is not verified.
  43 TEST(PBKDFTest, EmptySalt) {
  44   const uint8_t kKey[] = {0x8b, 0xc2, 0xf9, 0x16, 0x7a, 0x81, 0xcd, 0xcf,
  45                           0xad, 0x12, 0x35, 0xcd, 0x90, 0x47, 0xf1, 0x13,
  46                           0x62, 0x71, 0xc1, 0xf9, 0x78, 0xfc, 0xfc, 0xb3,
  47                           0x5e, 0x22, 0xdb, 0xea, 0xfa, 0x46, 0x34, 0xf6};
  48   uint8_t key[sizeof(kKey)];
  49
  50   ASSERT_TRUE(PKCS5_PBKDF2_HMAC("password", 8, NULL, 0, 2, EVP_sha256(),
  51                                 sizeof(kKey), key));
  52   EXPECT_EQ(Bytes(kKey), Bytes(key));
  53
  54   ASSERT_TRUE(PKCS5_PBKDF2_HMAC("password", 8, (const uint8_t *)"", 0, 2,
  55                                 EVP_sha256(), sizeof(kKey), key));
  56   EXPECT_EQ(Bytes(kKey), Bytes(key));
  57 }
  58
  59 // Exercises test vectors taken from https://tools.ietf.org/html/rfc6070.
  60 // Note that each of these test vectors uses SHA-1 as the digest.
  61 TEST(PBKDFTest, RFC6070Vectors) {
  62   const uint8_t kKey1[] = {0x0c, 0x60, 0xc8, 0x0f, 0x96, 0x1f, 0x0e,
  63                            0x71, 0xf3, 0xa9, 0xb5, 0x24, 0xaf, 0x60,
  64                            0x12, 0x06, 0x2f, 0xe0, 0x37, 0xa6};
  65   const uint8_t kKey2[] = {0xea, 0x6c, 0x01, 0x4d, 0xc7, 0x2d, 0x6f,
  66                            0x8c, 0xcd, 0x1e, 0xd9, 0x2a, 0xce, 0x1d,
  67                            0x41, 0xf0, 0xd8, 0xde, 0x89, 0x57};
  68   const uint8_t kKey3[] = {0x56, 0xfa, 0x6a, 0xa7, 0x55, 0x48, 0x09, 0x9d,
  69                            0xcc, 0x37, 0xd7, 0xf0, 0x34, 0x25, 0xe0, 0xc3};
  70   uint8_t key[sizeof(kKey1)];
  71   static_assert(sizeof(key) >= sizeof(kKey2), "output too small");
  72   static_assert(sizeof(key) >= sizeof(kKey3), "output too small");
  73
  74   ASSERT_TRUE(PKCS5_PBKDF2_HMAC("password", 8, (const uint8_t *)"salt", 4, 1,
  75                                 EVP_sha1(), sizeof(kKey1), key));
  76   EXPECT_EQ(Bytes(kKey1), Bytes(key, sizeof(kKey1)));
  77
  78   ASSERT_TRUE(PKCS5_PBKDF2_HMAC("password", 8, (const uint8_t *)"salt", 4, 2,
  79                                 EVP_sha1(), sizeof(kKey2), key));
  80   EXPECT_EQ(Bytes(kKey2), Bytes(key, sizeof(kKey2)));
  81
  82   ASSERT_TRUE(PKCS5_PBKDF2_HMAC("pass\0word", 9, (const uint8_t *)"sa\0lt", 5,
  83                                 4096, EVP_sha1(), sizeof(kKey3), key));
  84   EXPECT_EQ(Bytes(kKey3), Bytes(key, sizeof(kKey3)));
  85 }
  86
  87 // Tests key derivation using SHA-2 digests.
  88 TEST(PBKDFTest, SHA2) {
  89   // This test was taken from:
  90   // http://stackoverflow.com/questions/5130513/pbkdf2-hmac-sha2-test-vectors.
  91   const uint8_t kKey1[] = {0xae, 0x4d, 0x0c, 0x95, 0xaf, 0x6b, 0x46, 0xd3,
  92                            0x2d, 0x0a, 0xdf, 0xf9, 0x28, 0xf0, 0x6d, 0xd0,
  93                            0x2a, 0x30, 0x3f, 0x8e, 0xf3, 0xc2, 0x51, 0xdf,
  94                            0xd6, 0xe2, 0xd8, 0x5a, 0x95, 0x47, 0x4c, 0x43};
  95
  96   // This test was taken from:
  97   // http://stackoverflow.com/questions/15593184/pbkdf2-hmac-sha-512-test-vectors.
  98   const uint8_t kKey2[] = {
  99       0x8c, 0x05, 0x11, 0xf4, 0xc6, 0xe5, 0x97, 0xc6, 0xac, 0x63, 0x15,
 100       0xd8, 0xf0, 0x36, 0x2e, 0x22, 0x5f, 0x3c, 0x50, 0x14, 0x95, 0xba,
 101       0x23, 0xb8, 0x68, 0xc0, 0x05, 0x17, 0x4d, 0xc4, 0xee, 0x71, 0x11,
 102       0x5b, 0x59, 0xf9, 0xe6, 0x0c, 0xd9, 0x53, 0x2f, 0xa3, 0x3e, 0x0f,
 103       0x75, 0xae, 0xfe, 0x30, 0x22, 0x5c, 0x58, 0x3a, 0x18, 0x6c, 0xd8,
 104       0x2b, 0xd4, 0xda, 0xea, 0x97, 0x24, 0xa3, 0xd3, 0xb8};
 105
 106   uint8_t key[sizeof(kKey2)];
 107   static_assert(sizeof(key) >= sizeof(kKey1), "output too small");
 108
 109   ASSERT_TRUE(PKCS5_PBKDF2_HMAC("password", 8, (const uint8_t *)"salt", 4, 2,
 110                                 EVP_sha256(), sizeof(kKey1), key));
 111   EXPECT_EQ(Bytes(kKey1), Bytes(key, sizeof(kKey1)));
 112
 113   ASSERT_TRUE(
 114       PKCS5_PBKDF2_HMAC("passwordPASSWORDpassword", 24,
 115                         (const uint8_t *)"saltSALTsaltSALTsaltSALTsaltSALTsalt",
 116                         36, 4096, EVP_sha512(), sizeof(kKey2), key));
 117   EXPECT_EQ(Bytes(kKey2), Bytes(key, sizeof(kKey2)));
 118 }
 119
 120 // Tests key derivation using iterations=0.
 121 //
 122 // RFC 2898 defines the iteration count (c) as a "positive integer". So doing a
 123 // key derivation with iterations=0 is ill-defined and should result in a
 124 // failure.
 125 TEST(PBKDFTest, ZeroIterations) {
 126   static const char kPassword[] = "password";
 127   const size_t password_len = strlen(kPassword);
 128   static const uint8_t kSalt[] = {1, 2, 3, 4};
 129   const size_t salt_len = sizeof(kSalt);
 130   const EVP_MD *digest = EVP_sha1();
 131
 132   uint8_t key[10] = {0};
 133   const size_t key_len = sizeof(key);
 134
 135   // Verify that calling with iterations=1 works.
 136   ASSERT_TRUE(PKCS5_PBKDF2_HMAC(kPassword, password_len, kSalt, salt_len,
 137                                 1 /* iterations */, digest, key_len, key));
 138
 139   // Flip the first key byte (so can later test if it got set).
 140   const uint8_t expected_first_byte = key[0];
 141   key[0] = ~key[0];
 142
 143   // However calling it with iterations=0 fails.
 144   ASSERT_FALSE(PKCS5_PBKDF2_HMAC(kPassword, password_len, kSalt, salt_len,
 145                                  0 /* iterations */, digest, key_len, key));
 146
 147   // For backwards compatibility, the iterations == 0 case still fills in
 148   // the out key.
 149   EXPECT_EQ(expected_first_byte, key[0]);
 150 }