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4.49 beta

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This commit is contained in:
Igor Pavlov
2007-07-11 00:00:00 +00:00
committed by Kornel Lesiński
parent fd8b1d78b4
commit 7038848692
44 changed files with 1600 additions and 220 deletions
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37
CPP/7zip/Crypto/Hash/RandGen.cpp
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@@ -8,11 +8,24 @@
#include "RandGen.h"
#ifndef _WIN32
#include <unistd.h>
#define USE_POSIX_TIME
#define USE_POSIX_TIME2
#endif
#ifdef USE_POSIX_TIME
#include <time.h>
#ifdef USE_POSIX_TIME2
#include <sys/time.h>
#endif
#endif
// This is not very good random number generator.
// Please use it only for salt.
// First genrated data block depends from timer.
// Other genrated data blocks depend from previous state
// Maybe it's possible to restore original timer vaue from generated value.
// First generated data block depends from timer and processID.
// Other generated data blocks depend from previous state
// Maybe it's possible to restore original timer value from generated value.
void CRandomGenerator::Init()
{
@@ -24,6 +37,11 @@ void CRandomGenerator::Init()
hash.Update((const Byte *)&w, sizeof(w));
w = ::GetCurrentThreadId();
hash.Update((const Byte *)&w, sizeof(w));
#else
pid_t pid = getpid();
hash.Update((const Byte *)&pid, sizeof(pid));
pid = getppid();
hash.Update((const Byte *)&pid, sizeof(pid));
#endif
for (int i = 0; i < 1000; i++)
@@ -34,6 +52,19 @@ void CRandomGenerator::Init()
hash.Update((const Byte *)&v.QuadPart, sizeof(v.QuadPart));
#endif
#ifdef USE_POSIX_TIME
#ifdef USE_POSIX_TIME2
timeval v;
if (gettimeofday(&v, 0) == 0)
{
hash.Update((const Byte *)&v.tv_sec, sizeof(v.tv_sec));
hash.Update((const Byte *)&v.tv_usec, sizeof(v.tv_usec));
}
#endif
time_t v2 = time(NULL);
hash.Update((const Byte *)&v2, sizeof(v2));
#endif
DWORD tickCount = ::GetTickCount();
hash.Update((const Byte *)&tickCount, sizeof(tickCount));