store a MD5Sum in 16 bytes of memory.
A MD5Sum is used to generate a (hopefully) unique 16 byte number for a
- block of data. This can be used to gaurd against corruption of a file.
+ block of data. This can be used to guard against corruption of a file.
MD5 should not be used for tamper protection, use SHA or something more
secure.
#ifndef APTPKG_MD5_H
#define APTPKG_MD5_H
-#ifdef __GNUG__
-#pragma interface "apt-pkg/md5.h"
-#endif
+#include <stdint.h>
-#include <string>
+#include "hashsum_template.h"
+#ifndef APT_10_CLEANER_HEADERS
+#include <string>
+#include <cstring>
+#include <algorithm>
+#endif
+#ifndef APT_8_CLEANER_HEADERS
using std::string;
+using std::min;
+#endif
-class MD5Summation;
-
-class MD5SumValue
-{
- friend class MD5Summation;
- unsigned char Sum[4*4];
-
- public:
-
- // Accessors
- bool operator ==(const MD5SumValue &rhs) const;
- string Value() const;
- inline void Value(unsigned char S[16])
- {for (int I = 0; I != sizeof(Sum); I++) S[I] = Sum[I];};
- inline operator string() const {return Value();};
- bool Set(string Str);
- inline void Set(unsigned char S[16])
- {for (int I = 0; I != sizeof(Sum); I++) Sum[I] = S[I];};
-
- MD5SumValue(string Str);
- MD5SumValue();
-};
+typedef HashSumValue<128> MD5SumValue;
-class MD5Summation
+class MD5Summation : public SummationImplementation
{
- unsigned char Buf[4*4];
+ uint32_t Buf[4];
unsigned char Bytes[2*4];
unsigned char In[16*4];
bool Done;
-
+
public:
- bool Add(const unsigned char *Data,unsigned long Size);
- inline bool Add(const char *Data) {return Add((unsigned char *)Data,strlen(Data));};
- bool AddFD(int Fd,unsigned long Size);
- inline bool Add(const unsigned char *Beg,const unsigned char *End)
- {return Add(Beg,End-Beg);};
+ bool Add(const unsigned char *inbuf, unsigned long long inlen);
+ using SummationImplementation::Add;
+
MD5SumValue Result();
-
+
MD5Summation();
};