apt-pkg/contrib/sha512.h

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: sha512.h,v 1.3 2001/05/07 05:05:47 jgg Exp $
   4 /* ######################################################################
   5
   6    SHA512SumValue - Storage for a SHA-512 hash.
   7    SHA512Summation - SHA-512 Secure Hash Algorithm.
   8
   9    This is a C++ interface to a set of SHA512Sum functions, that mirrors
  10    the equivalent MD5 & SHA1 classes.
  11
  12    ##################################################################### */
  13                                                                         /*}}}*/
  14 #ifndef APTPKG_SHA512_H
  15 #define APTPKG_SHA512_H
  16
  17 #include <string>
  18 #include <cstring>
  19 #include <algorithm>
  20 #include <stdint.h>
  21
  22 #include "sha2.h"
  23
  24 using std::string;
  25 using std::min;
  26
  27 class SHA512Summation;
  28
  29 class SHA512SumValue
  30 {
  31    friend class SHA512Summation;
  32    unsigned char Sum[64];
  33
  34    public:
  35
  36    // Accessors
  37    bool operator ==(const SHA512SumValue &rhs) const;
  38    string Value() const;
  39    inline void Value(unsigned char S[64])
  40          {for (int I = 0; I != sizeof(Sum); I++) S[I] = Sum[I];};
  41    inline operator string() const {return Value();};
  42    bool Set(string Str);
  43    inline void Set(unsigned char S[64])
  44          {for (int I = 0; I != sizeof(Sum); I++) Sum[I] = S[I];};
  45
  46    SHA512SumValue(string Str);
  47    SHA512SumValue();
  48 };
  49
  50 class SHA512Summation
  51 {
  52    SHA512_CTX ctx;
  53    unsigned char Sum[64];
  54    bool Done;
  55
  56    public:
  57
  58    bool Add(const unsigned char *inbuf,unsigned long inlen);
  59    inline bool Add(const char *Data) {return Add((unsigned char *)Data,strlen(Data));};
  60    bool AddFD(int Fd,unsigned long Size);
  61    inline bool Add(const unsigned char *Beg,const unsigned char *End)
  62                   {return Add(Beg,End-Beg);};
  63    SHA512SumValue Result();
  64
  65    SHA512Summation();
  66 };
  67
  68 #endif