src/lib/crypto_util/hash.cc

// Copyright 2017 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "src/lib/crypto_util/hash.h"

#include <string>

#include <openssl/sha.h>

namespace cobalt::crypto::hash {

bool Hash(const std::string &data, std::string *out) {
  out->resize(SHA256_DIGEST_LENGTH);
  return Hash(data, reinterpret_cast<byte *>(&out->front()));
}

bool Hash(const std::string &data, byte out[SHA256_DIGEST_LENGTH]) {
  SHA256_CTX sha256;
  if (SHA256_Init(&sha256) != 1) {
    return false;
  }
  if (SHA256_Update(&sha256, data.c_str(), data.size()) != 1) {
    return false;
  }
  return SHA256_Final(out, &sha256) == 1;
}

}  // namespace cobalt::crypto::hash