ceph/src/boost/boost/beast/core/detail/sha1.hpp

   1 //
   2 // Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
   3 //
   4 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   5 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 //
   7 // Official repository: https://github.com/boostorg/beast
   8 //
   9
  10 #ifndef BOOST_BEAST_DETAIL_SHA1_HPP
  11 #define BOOST_BEAST_DETAIL_SHA1_HPP
  12
  13 #include <boost/beast/core/detail/config.hpp>
  14 #include <cstdint>
  15 #include <cstddef>
  16
  17 // Based on https://github.com/vog/sha1
  18 /*
  19     Original authors:
  20         Steve Reid (Original C Code)
  21         Bruce Guenter (Small changes to fit into bglibs)
  22         Volker Grabsch (Translation to simpler C++ Code)
  23         Eugene Hopkinson (Safety improvements)
  24         Vincent Falco (beast adaptation)
  25 */
  26
  27 namespace boost {
  28 namespace beast {
  29 namespace detail {
  30
  31 namespace sha1 {
  32
  33 static std::size_t constexpr BLOCK_INTS = 16;
  34 static std::size_t constexpr BLOCK_BYTES = 64;
  35 static std::size_t constexpr DIGEST_BYTES = 20;
  36
  37 } // sha1
  38
  39 struct sha1_context
  40 {
  41     static unsigned int constexpr block_size = sha1::BLOCK_BYTES;
  42     static unsigned int constexpr digest_size = 20;
  43
  44     std::size_t buflen;
  45     std::size_t blocks;
  46     std::uint32_t digest[5];
  47     std::uint8_t buf[block_size];
  48 };
  49
  50 BOOST_BEAST_DECL
  51 void
  52 init(sha1_context& ctx) noexcept;
  53
  54 BOOST_BEAST_DECL
  55 void
  56 update(
  57     sha1_context& ctx,
  58     void const* message,
  59     std::size_t size) noexcept;
  60
  61 BOOST_BEAST_DECL
  62 void
  63 finish(
  64     sha1_context& ctx,
  65     void* digest) noexcept;
  66
  67 } // detail
  68 } // beast
  69 } // boost
  70
  71 #ifdef BOOST_BEAST_HEADER_ONLY
  72 #include <boost/beast/core/detail/sha1.ipp>
  73 #endif
  74
  75 #endif