Move webrtc/{base => rtc_base}

webrtc/base/messagedigest.cc

Index: webrtc/base/messagedigest.cc
diff --git a/webrtc/base/messagedigest.cc b/webrtc/base/messagedigest.cc
deleted file mode 100644
index 05c8c4f3da635922e67e6acc44626c376aae17ae..0000000000000000000000000000000000000000
--- a/webrtc/base/messagedigest.cc
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
- *  Copyright 2011 The WebRTC Project Authors. All rights reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#include "webrtc/base/messagedigest.h"
-
-#include <memory>
-
-#include <string.h>
-
-#include "webrtc/base/basictypes.h"
-#include "webrtc/base/openssldigest.h"
-#include "webrtc/base/stringencode.h"
-
-namespace rtc {
-
-// From RFC 4572.
-const char DIGEST_MD5[]     = "md5";
-const char DIGEST_SHA_1[]   = "sha-1";
-const char DIGEST_SHA_224[] = "sha-224";
-const char DIGEST_SHA_256[] = "sha-256";
-const char DIGEST_SHA_384[] = "sha-384";
-const char DIGEST_SHA_512[] = "sha-512";
-
-static const size_t kBlockSize = 64;  // valid for SHA-256 and down
-
-MessageDigest* MessageDigestFactory::Create(const std::string& alg) {
-  MessageDigest* digest = new OpenSSLDigest(alg);
-  if (digest->Size() == 0) {  // invalid algorithm
-    delete digest;
-    digest = nullptr;
-  }
-  return digest;
-}
-
-bool IsFips180DigestAlgorithm(const std::string& alg) {
-  // These are the FIPS 180 algorithms.  According to RFC 4572 Section 5,
-  // "Self-signed certificates (for which legacy certificates are not a
-  // consideration) MUST use one of the FIPS 180 algorithms (SHA-1,
-  // SHA-224, SHA-256, SHA-384, or SHA-512) as their signature algorithm,
-  // and thus also MUST use it to calculate certificate fingerprints."
-  return alg == DIGEST_SHA_1 ||
-         alg == DIGEST_SHA_224 ||
-         alg == DIGEST_SHA_256 ||
-         alg == DIGEST_SHA_384 ||
-         alg == DIGEST_SHA_512;
-}
-
-size_t ComputeDigest(MessageDigest* digest, const void* input, size_t in_len,
-                     void* output, size_t out_len) {
-  digest->Update(input, in_len);
-  return digest->Finish(output, out_len);
-}
-
-size_t ComputeDigest(const std::string& alg, const void* input, size_t in_len,
-                     void* output, size_t out_len) {
-  std::unique_ptr<MessageDigest> digest(MessageDigestFactory::Create(alg));
-  return (digest) ?
-      ComputeDigest(digest.get(), input, in_len, output, out_len) :
-      0;
-}
-
-std::string ComputeDigest(MessageDigest* digest, const std::string& input) {
-  std::unique_ptr<char[]> output(new char[digest->Size()]);
-  ComputeDigest(digest, input.data(), input.size(),
-                output.get(), digest->Size());
-  return hex_encode(output.get(), digest->Size());
-}
-
-bool ComputeDigest(const std::string& alg, const std::string& input,
-                   std::string* output) {
-  std::unique_ptr<MessageDigest> digest(MessageDigestFactory::Create(alg));
-  if (!digest) {
-    return false;
-  }
-  *output = ComputeDigest(digest.get(), input);
-  return true;
-}
-
-std::string ComputeDigest(const std::string& alg, const std::string& input) {
-  std::string output;
-  ComputeDigest(alg, input, &output);
-  return output;
-}
-
-// Compute a RFC 2104 HMAC: H(K XOR opad, H(K XOR ipad, text))
-size_t ComputeHmac(MessageDigest* digest,
-                   const void* key, size_t key_len,
-                   const void* input, size_t in_len,
-                   void* output, size_t out_len) {
-  // We only handle algorithms with a 64-byte blocksize.
-  // TODO: Add BlockSize() method to MessageDigest.
-  size_t block_len = kBlockSize;
-  if (digest->Size() > 32) {
-    return 0;
-  }
-  // Copy the key to a block-sized buffer to simplify padding.
-  // If the key is longer than a block, hash it and use the result instead.
-  std::unique_ptr<uint8_t[]> new_key(new uint8_t[block_len]);
-  if (key_len > block_len) {
-    ComputeDigest(digest, key, key_len, new_key.get(), block_len);
-    memset(new_key.get() + digest->Size(), 0, block_len - digest->Size());
-  } else {
-    memcpy(new_key.get(), key, key_len);
-    memset(new_key.get() + key_len, 0, block_len - key_len);
-  }
-  // Set up the padding from the key, salting appropriately for each padding.
-  std::unique_ptr<uint8_t[]> o_pad(new uint8_t[block_len]);
-  std::unique_ptr<uint8_t[]> i_pad(new uint8_t[block_len]);
-  for (size_t i = 0; i < block_len; ++i) {
-    o_pad[i] = 0x5c ^ new_key[i];
-    i_pad[i] = 0x36 ^ new_key[i];
-  }
-  // Inner hash; hash the inner padding, and then the input buffer.
-  std::unique_ptr<uint8_t[]> inner(new uint8_t[digest->Size()]);
-  digest->Update(i_pad.get(), block_len);
-  digest->Update(input, in_len);
-  digest->Finish(inner.get(), digest->Size());
-  // Outer hash; hash the outer padding, and then the result of the inner hash.
-  digest->Update(o_pad.get(), block_len);
-  digest->Update(inner.get(), digest->Size());
-  return digest->Finish(output, out_len);
-}
-
-size_t ComputeHmac(const std::string& alg, const void* key, size_t key_len,
-                   const void* input, size_t in_len,
-                   void* output, size_t out_len) {
-  std::unique_ptr<MessageDigest> digest(MessageDigestFactory::Create(alg));
-  if (!digest) {
-    return 0;
-  }
-  return ComputeHmac(digest.get(), key, key_len,
-                     input, in_len, output, out_len);
-}
-
-std::string ComputeHmac(MessageDigest* digest, const std::string& key,
-                        const std::string& input) {
-  std::unique_ptr<char[]> output(new char[digest->Size()]);
-  ComputeHmac(digest, key.data(), key.size(),
-              input.data(), input.size(), output.get(), digest->Size());
-  return hex_encode(output.get(), digest->Size());
-}
-
-bool ComputeHmac(const std::string& alg, const std::string& key,
-                 const std::string& input, std::string* output) {
-  std::unique_ptr<MessageDigest> digest(MessageDigestFactory::Create(alg));
-  if (!digest) {
-    return false;
-  }
-  *output = ComputeHmac(digest.get(), key, input);
-  return true;
-}
-
-std::string ComputeHmac(const std::string& alg, const std::string& key,
-                        const std::string& input) {
-  std::string output;
-  ComputeHmac(alg, key, input, &output);
-  return output;
-}
-
-}  // namespace rtc