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      1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef BASE_SHA1_H_
      6 #define BASE_SHA1_H_
      7 #pragma once
      8 
      9 #include <string>
     10 
     11 #include "base/base_api.h"
     12 
     13 namespace base {
     14 
     15 // This function performs SHA-1 operations.
     16 
     17 enum {
     18   SHA1_LENGTH = 20  // Length in bytes of a SHA-1 hash.
     19 };
     20 
     21 // Computes the SHA-1 hash of the input string |str| and returns the full
     22 // hash.
     23 BASE_API std::string SHA1HashString(const std::string& str);
     24 
     25 // Computes the SHA-1 hash of the |len| bytes in |data| and puts the hash
     26 // in |hash|. |hash| must be SHA1_LENGTH bytes long.
     27 BASE_API void SHA1HashBytes(const unsigned char* data, size_t len,
     28                             unsigned char* hash);
     29 
     30 }  // namespace base
     31 
     32 #endif  // BASE_SHA1_H_
     33