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, 99 deletions

diff --git a/cryptopp562/gzip.cpp b/cryptopp562/gzip.cpp
deleted file mode 100644
index 09e420a..0000000
--- a/cryptopp562/gzip.cpp
+++ /dev/null
@@ -1,99 +0,0 @@
-// gzip.cpp - written and placed in the public domain by Wei Dai
-
-#include "pch.h"
-#include "gzip.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-void Gzip::WritePrestreamHeader()
-{
-	m_totalLen = 0;
-	m_crc.Restart();
-
-	AttachedTransformation()->Put(MAGIC1);
-	AttachedTransformation()->Put(MAGIC2);
-	AttachedTransformation()->Put(DEFLATED);
-	AttachedTransformation()->Put(0);		// general flag
-	AttachedTransformation()->PutWord32(0);	// time stamp
-	byte extra = (GetDeflateLevel() == 1) ? FAST : ((GetDeflateLevel() == 9) ? SLOW : 0);
-	AttachedTransformation()->Put(extra);
-	AttachedTransformation()->Put(GZIP_OS_CODE);
-}
-
-void Gzip::ProcessUncompressedData(const byte *inString, size_t length)
-{
-	m_crc.Update(inString, length);
-	m_totalLen += (word32)length;
-}
-
-void Gzip::WritePoststreamTail()
-{
-	SecByteBlock crc(4);
-	m_crc.Final(crc);
-	AttachedTransformation()->Put(crc, 4);
-	AttachedTransformation()->PutWord32(m_totalLen, LITTLE_ENDIAN_ORDER);
-}
-
-// *************************************************************
-
-Gunzip::Gunzip(BufferedTransformation *attachment, bool repeat, int propagation)
-	: Inflator(attachment, repeat, propagation)
-{
-}
-
-void Gunzip::ProcessPrestreamHeader()
-{
-	m_length = 0;
-	m_crc.Restart();
-
-	byte buf[6];
-	byte b, flags;
-
-	if (m_inQueue.Get(buf, 2)!=2) throw HeaderErr();
-	if (buf[0] != MAGIC1 || buf[1] != MAGIC2) throw HeaderErr();
-	if (!m_inQueue.Skip(1)) throw HeaderErr();	 // skip extra flags
-	if (!m_inQueue.Get(flags)) throw HeaderErr();
-	if (flags & (ENCRYPTED | CONTINUED)) throw HeaderErr();
-	if (m_inQueue.Skip(6)!=6) throw HeaderErr();    // Skip file time, extra flags and OS type
-
-	if (flags & EXTRA_FIELDS)	// skip extra fields
-	{
-		word16 length;
-		if (m_inQueue.GetWord16(length, LITTLE_ENDIAN_ORDER) != 2) throw HeaderErr();
-		if (m_inQueue.Skip(length)!=length) throw HeaderErr();
-	}
-
-	if (flags & FILENAME)	// skip filename
-		do
-			if(!m_inQueue.Get(b)) throw HeaderErr();
-		while (b);
-
-	if (flags & COMMENTS)	// skip comments
-		do
-			if(!m_inQueue.Get(b)) throw HeaderErr();
-		while (b);
-}
-
-void Gunzip::ProcessDecompressedData(const byte *inString, size_t length)
-{
-	AttachedTransformation()->Put(inString, length);
-	m_crc.Update(inString, length);
-	m_length += (word32)length;
-}
-
-void Gunzip::ProcessPoststreamTail()
-{
-	SecByteBlock crc(4);
-	if (m_inQueue.Get(crc, 4) != 4)
-		throw TailErr();
-	if (!m_crc.Verify(crc))
-		throw CrcErr();
-
-	word32 lengthCheck;
-	if (m_inQueue.GetWord32(lengthCheck, LITTLE_ENDIAN_ORDER) != 4)
-		throw TailErr();
-	if (lengthCheck != m_length)
-		throw LengthErr();
-}
-
-NAMESPACE_END