apt-pkg/contrib/sha1.h

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: sha1.h,v 1.3 2001/05/07 05:05:47 jgg Exp $
   4 /* ######################################################################
   5
   6    SHA1SumValue - Storage for a SHA-1 hash.
   7    SHA1Summation - SHA-1 Secure Hash Algorithm.
   8
   9    This is a C++ interface to a set of SHA1Sum functions, that mirrors
  10    the equivalent MD5 classes.
  11
  12    ##################################################################### */
  13                                                                         /*}}}*/
  14 #ifndef APTPKG_SHA1_H
  15 #define APTPKG_SHA1_H
  16
  17 #include <string>
  18 #include <cstring>
  19 #include <algorithm>
  20
  21 #include "hashsum_template.h"
  22
  23 typedef  HashSumValue<160> SHA1SumValue;
  24
  25 class SHA1Summation : public SummationImplementation
  26 {
  27    /* assumes 64-bit alignment just in case */
  28    unsigned char Buffer[64] __attribute__((aligned(8)));
  29    unsigned char State[5*4] __attribute__((aligned(8)));
  30    unsigned char Count[2*4] __attribute__((aligned(8)));
  31    bool Done;
  32
  33    public:
  34    bool Add(const unsigned char *inbuf, unsigned long long inlen);
  35    using SummationImplementation::Add;
  36
  37    SHA1SumValue Result();
  38
  39    SHA1Summation();
  40 };
  41
  42 #endif