folly/ssl/test/OpenSSLHashTest.cpp

   1 /*
   2  * Copyright 2017 Facebook, Inc.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *   http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <folly/ssl/OpenSSLHash.h>
  18
  19 #include <folly/io/IOBufQueue.h>
  20 #include <folly/portability/GTest.h>
  21
  22 using namespace std;
  23 using namespace folly;
  24 using namespace folly::ssl;
  25
  26 namespace {
  27
  28 class OpenSSLHashTest : public testing::Test {};
  29
  30 }
  31
  32 TEST_F(OpenSSLHashTest, sha256) {
  33   IOBuf buf;
  34   buf.prependChain(IOBuf::wrapBuffer(ByteRange(StringPiece("foo"))));
  35   buf.prependChain(IOBuf::wrapBuffer(ByteRange(StringPiece("bar"))));
  36   EXPECT_EQ(3, buf.countChainElements());
  37   EXPECT_EQ(6, buf.computeChainDataLength());
  38
  39   auto expected = vector<uint8_t>(32);
  40   auto combined = ByteRange(StringPiece("foobar"));
  41   SHA256(combined.data(), combined.size(), expected.data());
  42
  43   auto out = vector<uint8_t>(32);
  44   OpenSSLHash::sha256(range(out), buf);
  45   EXPECT_EQ(expected, out);
  46 }
  47
  48 TEST_F(OpenSSLHashTest, sha256_hashcopy) {
  49   std::array<uint8_t, 32> expected, actual;
  50
  51   OpenSSLHash::Digest digest;
  52   digest.hash_init(EVP_sha256());
  53   digest.hash_update(ByteRange(StringPiece("foobar")));
  54
  55   OpenSSLHash::Digest copy(digest);
  56
  57   digest.hash_final(range(expected));
  58   copy.hash_final(range(actual));
  59
  60   EXPECT_EQ(expected, actual);
  61 }
  62
  63 TEST_F(OpenSSLHashTest, sha256_hashcopy_intermediate) {
  64   std::array<uint8_t, 32> expected, actual;
  65
  66   OpenSSLHash::Digest digest;
  67   digest.hash_init(EVP_sha256());
  68   digest.hash_update(ByteRange(StringPiece("foo")));
  69
  70   OpenSSLHash::Digest copy(digest);
  71
  72   digest.hash_update(ByteRange(StringPiece("bar")));
  73   copy.hash_update(ByteRange(StringPiece("bar")));
  74
  75   digest.hash_final(range(expected));
  76   copy.hash_final(range(actual));
  77
  78   EXPECT_EQ(expected, actual);
  79 }
  80
  81 TEST_F(OpenSSLHashTest, hmac_sha256) {
  82   auto key = ByteRange(StringPiece("qwerty"));
  83
  84   IOBuf buf;
  85   buf.prependChain(IOBuf::wrapBuffer(ByteRange(StringPiece("foo"))));
  86   buf.prependChain(IOBuf::wrapBuffer(ByteRange(StringPiece("bar"))));
  87   EXPECT_EQ(3, buf.countChainElements());
  88   EXPECT_EQ(6, buf.computeChainDataLength());
  89
  90   auto expected = vector<uint8_t>(32);
  91   auto combined = ByteRange(StringPiece("foobar"));
  92   HMAC(
  93       EVP_sha256(),
  94       key.data(),
  95       int(key.size()),
  96       combined.data(),
  97       combined.size(),
  98       expected.data(),
  99       nullptr);
 100
 101   auto out = vector<uint8_t>(32);
 102   OpenSSLHash::hmac_sha256(range(out), key, buf);
 103   EXPECT_EQ(expected, out);
 104 }