Merge branch 'mbedtls'

Replace Crypto++ 5.6.2 with Mbed TLS 3.6.0

Newer compilers are starting to show the age of the crypto library we've
been using, as it is sometimes a pain to recompile compass lately.  So,
the tracked version of Crypto++ was at least due for an upgrade.

However, I plan to soon begin reimplementing compass in C.  So, I'm
taking this opportunity to first just migrate the cryptography library
to a newer C alternative.  This branch does so, and integrates its use
into the current C++ version of compass.

* mbedtls:
  Remove unnecessary exception handler catch block
  Refactor random password generation to use mbedtls entropy source
  Refactor SHA256 function to use mbedtls
  Refactor AES functions to use mbedtls
  Add Mbedtls library
  Remove Crypto++ library

1 files changed, 0 insertions, 139 deletions

diff --git a/cryptopp562/hrtimer.cpp b/cryptopp562/hrtimer.cpp
deleted file mode 100644
index 906ec4a..0000000
--- a/cryptopp562/hrtimer.cpp
+++ /dev/null
@@ -1,139 +0,0 @@
-// hrtimer.cpp - written and placed in the public domain by Wei Dai
-
-#include "pch.h"
-#include "hrtimer.h"
-#include "misc.h"
-#include <stddef.h>		// for NULL
-#include <time.h>
-
-#if defined(CRYPTOPP_WIN32_AVAILABLE)
-#include <windows.h>
-#elif defined(CRYPTOPP_UNIX_AVAILABLE)
-#include <sys/time.h>
-#include <sys/times.h>
-#include <unistd.h>
-#endif
-
-#include <assert.h>
-
-NAMESPACE_BEGIN(CryptoPP)
-
-#ifndef CRYPTOPP_IMPORTS
-
-double TimerBase::ConvertTo(TimerWord t, Unit unit)
-{
-	static unsigned long unitsPerSecondTable[] = {1, 1000, 1000*1000, 1000*1000*1000};
-
-	assert(unit < sizeof(unitsPerSecondTable) / sizeof(unitsPerSecondTable[0]));
-	return (double)CRYPTOPP_VC6_INT64 t * unitsPerSecondTable[unit] / CRYPTOPP_VC6_INT64 TicksPerSecond();
-}
-
-void TimerBase::StartTimer()
-{
-	m_last = m_start = GetCurrentTimerValue();
-	m_started = true;
-}
-
-double TimerBase::ElapsedTimeAsDouble()
-{
-	if (m_stuckAtZero)
-		return 0;
-
-	if (m_started)
-	{
-		TimerWord now = GetCurrentTimerValue();
-		if (m_last < now)	// protect against OS bugs where time goes backwards
-			m_last = now;
-		return ConvertTo(m_last - m_start, m_timerUnit);
-	}
-
-	StartTimer();
-	return 0;
-}
-
-unsigned long TimerBase::ElapsedTime()
-{
-	double elapsed = ElapsedTimeAsDouble();
-	assert(elapsed <= ULONG_MAX);
-	return (unsigned long)elapsed;
-}
-
-TimerWord Timer::GetCurrentTimerValue()
-{
-#if defined(CRYPTOPP_WIN32_AVAILABLE)
-	LARGE_INTEGER now;
-	if (!QueryPerformanceCounter(&now))
-		throw Exception(Exception::OTHER_ERROR, "Timer: QueryPerformanceCounter failed with error " + IntToString(GetLastError()));
-	return now.QuadPart;
-#elif defined(CRYPTOPP_UNIX_AVAILABLE)
-	timeval now;
-	gettimeofday(&now, NULL);
-	return (TimerWord)now.tv_sec * 1000000 + now.tv_usec;
-#else
-	clock_t now;
-	return clock();
-#endif
-}
-
-TimerWord Timer::TicksPerSecond()
-{
-#if defined(CRYPTOPP_WIN32_AVAILABLE)
-	static LARGE_INTEGER freq = {0};
-	if (freq.QuadPart == 0)
-	{
-		if (!QueryPerformanceFrequency(&freq))
-			throw Exception(Exception::OTHER_ERROR, "Timer: QueryPerformanceFrequency failed with error " + IntToString(GetLastError()));
-	}
-	return freq.QuadPart;
-#elif defined(CRYPTOPP_UNIX_AVAILABLE)
-	return 1000000;
-#else
-	return CLOCKS_PER_SEC;
-#endif
-}
-
-#endif	// #ifndef CRYPTOPP_IMPORTS
-
-TimerWord ThreadUserTimer::GetCurrentTimerValue()
-{
-#if defined(CRYPTOPP_WIN32_AVAILABLE)
-	static bool getCurrentThreadImplemented = true;
-	if (getCurrentThreadImplemented)
-	{
-		FILETIME now, ignored;
-		if (!GetThreadTimes(GetCurrentThread(), &ignored, &ignored, &ignored, &now))
-		{
-			DWORD lastError = GetLastError();
-			if (lastError == ERROR_CALL_NOT_IMPLEMENTED)
-			{
-				getCurrentThreadImplemented = false;
-				goto GetCurrentThreadNotImplemented;
-			}
-			throw Exception(Exception::OTHER_ERROR, "ThreadUserTimer: GetThreadTimes failed with error " + IntToString(lastError));
-		}
-		return now.dwLowDateTime + ((TimerWord)now.dwHighDateTime << 32);
-	}
-GetCurrentThreadNotImplemented:
-	return (TimerWord)clock() * (10*1000*1000 / CLOCKS_PER_SEC);
-#elif defined(CRYPTOPP_UNIX_AVAILABLE)
-	tms now;
-	times(&now);
-	return now.tms_utime;
-#else
-	return clock();
-#endif
-}
-
-TimerWord ThreadUserTimer::TicksPerSecond()
-{
-#if defined(CRYPTOPP_WIN32_AVAILABLE)
-	return 10*1000*1000;
-#elif defined(CRYPTOPP_UNIX_AVAILABLE)
-	static const long ticksPerSecond = sysconf(_SC_CLK_TCK);
-	return ticksPerSecond;
-#else
-	return CLOCKS_PER_SEC;
-#endif
-}
-
-NAMESPACE_END