Merge Phil Zimmermann's libzrtp as a FreeSWITCH library

Thanks to Phil Zimmermann for the code and for the license exception
we needed to include it.

There remains some build system integration work to be done before
this code will build properly in the FreeSWITCH tree.

libs/libzrtp/projects/win_kernel/MAKEFILE.WIN64

@@ -0,0 +1,131 @@
+# 
+# Copyright (c) 2006 Philip R. Zimmermann. All rights reserved.
+# Contact: http://philzimmermann.com
+# For licensing and other legal details, see the file zrtp_legal.c.
+# 
+# Andrew Rozinko <a.rozinko@soft-industry.com>
+
+#
+# THIS MAKEFILE WORKS WITH MICROSOFT NMAKE ONLY
+#
+
+# change this to point to your DDK
+
+DDK = ..\..\..\..\winddk2003
+OS = wnet
+BASENAME = libzrtp
+BINPATH = $(DDK)\bin\win64\x86\amd64
+
+#RELEASE = 1
+
+CC = $(BINPATH)\cl
+ASM = $(BINPATH)\ml
+LIB = $(BINPATH)\lib
+
+all: $(BASENAME).lib
+
+# bnlib (the BigNumber engine)
+
+bnlib    = \
+		../../third_party/bnlib/bn.obj \
+		../../third_party/bnlib/bn32.obj \
+		../../third_party/bnlib/bninit32.obj \
+		../../third_party/bnlib/lbn32.obj \
+		../../third_party/bnlib/lbnmem.obj \
+		../../third_party/bnlib/legal.obj
+
+protocol = \
+		../../src/zrtp.obj \
+		../../src/zrtp_crc.obj \
+		../../src/zrtp_crypto_aes.obj \
+		../../src/zrtp_crypto_atl.obj \
+		../../src/zrtp_crypto_hash.obj \
+		../../src/zrtp_crypto_pk.obj \
+		../../src/zrtp_crypto_sas.obj \
+		../../src/zrtp_datatypes.obj \
+		../../src/zrtp_engine.obj \
+		../../src/zrtp_iface_sys.obj \
+		../../src/zrtp_initiator.obj \
+		../../src/zrtp_legal.obj \
+		../../src/zrtp_list.obj \
+		../../src/zrtp_log.obj \
+		../../src/zrtp_pbx.obj \
+		../../src/zrtp_protocol.obj \
+		../../src/zrtp_responder.obj \
+		../../src/zrtp_rng.obj \
+		../../src/zrtp_srtp_builtin.obj \
+		../../src/zrtp_string.obj \
+		../../src/zrtp_utils.obj \
+		../../src/zrtp_utils_proto.obj
+
+bgaes      = \
+		../../third_party/bgaes/aes_modes.obj \
+		../../third_party/bgaes/aescrypt.obj \
+		../../third_party/bgaes/aeskey.obj \
+		../../third_party/bgaes/aestab.obj \
+		../../third_party/bgaes/sha1.obj \
+		../../third_party/bgaes/sha2.obj
+
+OBJECTS  = $(bnlib) $(protocol) $(bgaes) 
+
+!IFNDEF RELEASE
+
+# Debug
+
+OUT_DIR = debug64.km
+
+DEFINES_D = -DWIN64=1 -D_WIN64=1 -D_AMD64_=1 -D_M_AMD64 -D_WINDOWS \
+-DSTD_CALL -DCONDITION_HANDLING=1 \
+-DNT_UP=1 -DNT_INST=0 -D_NT1X_=100 \
+-DWINNT=1 -D_WIN32_WINNT=0x0500 -DWIN32_LEAN_AND_MEAN=1 -DDBG=1 -D_DEBUG -DDEBUG -DDEVL=1 \
+-DFPO=0 -D_DLL=1 -D_IDWBUILD -DRDRDBG -DSRVDBG -DDBG_MESSAGES=1 \
+-D_UNICODE -DLITTLE_ENDIAN -DZRTP_USE_ENTERPRISE=0
+
+CFLAGS_D = $(DEFINES_D) -Zp8 -Gy -cbstring -Gz -Gm- -EHs-c- \
+-GR- -GF -FI$(DDK)\inc\$(OS)\warning.h -Z7 -Od -Oi -Oy- -W3
+
+!ELSE
+
+# Release
+
+OUT_DIR = release64.km
+
+DEFINES_D = -DWIN64=1 -D_WIN64=1 -D_AMD64_=1 -D_M_AMD64 -D_WINDOWS \
+-DSTD_CALL -DCONDITION_HANDLING=1 \
+-DNT_UP=1 -DNO_DISK_ACCESS -DNT_INST=0 -DWIN32=100 -D_NT1X_=100 \
+-DWINNT=1 -D_WIN32_WINNT=0x0500 -DWIN32_LEAN_AND_MEAN=1 -DDEVL=1 \
+-DFPO=1 -DNDEBUG -D_DLL=1 -D_IDWBUILD -D_UNICODE \
+-DLITTLE_ENDIAN  -DZRTP_USE_ENTERPRISE=0
+
+CFLAGS_D = $(DEFINES_D) -Zel -Zp8 -Gy -cbstring -Gz -QIfdiv- -QIf -Gi- -Gm- -GX- \
+-GR- -GF -Oxs -Oy -FI$(DDK)\inc\$(OS)\warning.h -W3 -FAcs -Z7
+
+!ENDIF
+
+ASM      = ml
+AFLAGS   = /c /Cx /coff /Zi
+AINCLUDE = -I. -I$(DDK)\inc
+
+CFLAGS = $(CFLAGS_D) -nologo -DHAVE_CONFIG_H=1 -DNT_DRIVER -D__BUILDMACHINE__=WinDDK \
+	-I$(DDK)\inc\$(OS) -I$(DDK)\inc\ddk\$(OS)  -I$(DDK)\inc\ddk\wdm\$(OS) \
+	-I$(DDK)\inc\crt -I..\..\third_party\bnlib\config -I..\..\third_party\bnlib \
+	-I..\..\third_party\bgaes -I..\..\test\include -I..\..\include  -I..\..\include\enterprise
+
+.c.obj :
+	@$(CC) -c $(CFLAGS) $< /Fo$(OUT_DIR)/$(<B).obj
+
+.asm.obj:
+        $(ASM) $(AINCLUDE) $(AFLAGS) /Fo$(OUT_DIR)/$(<B).obj $<
+
+$(BASENAME).lib : $(OUT_DIR) $(OBJECTS)
+	$(LIB) /OUT:"$(OUT_DIR)\$(BASENAME).lib" /NOLOGO $(OUT_DIR)\*.obj
+
+$(OUT_DIR) :
+	@mkdir $(OUT_DIR)
+
+clean:
+	del "$(OUT_DIR)\*.obj"
+	del "$(OUT_DIR)\*.res"
+	del "$(OUT_DIR)\*.map"
+	del "$(OUT_DIR)\*.pdb"
+	del "$(OUT_DIR)\$(BASENAME).lib"