# MAKEFILE for linux GCC
#
# Tom St Denis
# Modified by Clay Culver
#
# NOTE: This should later be replaced by autoconf/automake scripts, but for
# the time being this is actually pretty clean. The only ugly part is
# handling CFLAGS so that the x86 specific optimizations don't break
# a build. This is easy to remedy though, for those that have problems.

# The version
VERSION=0.78

#Compiler and Linker Names
CC=gcc
LD=ld

#Archiver [makes .a files]
AR=ar
ARFLAGS=rs

#here you can set the malloc/calloc/free functions you want
XMALLOC=malloc
XCALLOC=calloc
XFREE=free

#you can redefine the clock
XCLOCK=clock
XCLOCKS_PER_SEC=CLOCKS_PER_SEC

#Compilation flags. Note the += does not write over the user's CFLAGS!
CFLAGS += -c -I./ -Wall -Wsign-compare -W -Wno-unused -Werror  \
   -DXMALLOC=$(XMALLOC) -DXCALLOC=$(XCALLOC) -DXFREE=$(XFREE) -DXCLOCK=$(XCLOCK) \
   -DXCLOCKS_PER_SEC=$(XCLOCKS_PER_SEC)

#optimize for SPEED (comment out SIZE/DEBUG line as well)
#CFLAGS += -O3 -funroll-loops

#optimize for SIZE (comment out SPEED/DEBUG line as well)
CFLAGS += -Os 

#Use small code variants of functions when possible?  (Slows it down!)
CFLAGS += -DSMALL_CODE

#compile for DEBUGGING 
#CFLAGS += -g3

#These flags control how the library gets built.

#no file support, when defined the library will not have any functions that can read/write files 
#(comment out to have file support)
#CFLAGS += -DNO_FILE

#Support the UNIX /dev/random or /dev/urandom
CFLAGS += -DDEVRANDOM

# Use /dev/urandom first on devices where /dev/random is too slow */
#CFLAGS += -DTRY_URANDOM_FIRST

# Clean the stack after sensitive functions.  Not always required... 
# With this defined most of the ciphers and hashes will clean their stack area
# after usage with a (sometimes) huge penalty in speed.  Normally this is not
# required if you simply lock your stack and wipe it when your program is done.
#
#CFLAGS += -DCLEAN_STACK

# What algorithms to include? comment out and rebuild to remove em
CFLAGS += -DBLOWFISH
CFLAGS += -DRC2
CFLAGS += -DRC5
CFLAGS += -DRC6
CFLAGS += -DSERPENT
CFLAGS += -DSAFERP
CFLAGS += -DSAFER
CFLAGS += -DRIJNDAEL
CFLAGS += -DXTEA
CFLAGS += -DTWOFISH
CFLAGS += -DDES
CFLAGS += -DCAST5
CFLAGS += -DNOEKEON

#You can also customize the Twofish code.  All four combinations 
#of the flags are possible but only three of them make sense.
#
#Both undefined:  Very fast, requires ~4.2KB of ram per scheduled key
#Both defined  :  Slow, requires only ~100 bytes of ram per scheduled key
#
#If defined on their own
#_SMALL defined:  Very Slow, small code only ~100 bytes of ram
#_TABLES defined: Very fast, not faster than if both were undefined.  Code is ~1KB bigger
#                 faster keysetup though...

# Small Ram Variant of Twofish.  For this you must have TWOFISH defined.  This
# variant requires about 4kb less memory but is considerably slower.  It is ideal
# when high throughput is less important than conserving memory. By default it is
# not defined which means the larger ram (about 4.2Kb used) variant is built.
#CFLAGS += -DTWOFISH_SMALL

# Tell Twofish to use precomputed tables.  If you want to use the small table
# variant of Twofish you may want to turn this on.  Essentially it tells Twofish to use
# precomputed S-boxes (Q0 and Q1) as well as precomputed GF multiplications [in the MDS].
# This speeds up the cipher somewhat.
#CFLAGS += -DTWOFISH_TABLES 

#Use fast PK routines.  Basically this limits the size of the private key in the
#DH system to 256 bits.  The group order remains unchanged so the best
#attacks are still GNFS (for DH upto 2560-bits)
#
#This will only speed up the key generation and encryption routines.  It lowers the
#security so its by default not turned on.  USE AT YOUR RISK!
#CFLAGS += -DFAST_PK

# Chaining modes
CFLAGS += -DCFB
CFLAGS += -DOFB
CFLAGS += -DECB
CFLAGS += -DCBC
CFLAGS += -DCTR

#One-way hashes
CFLAGS += -DSHA512
CFLAGS += -DSHA384
CFLAGS += -DSHA256
CFLAGS += -DTIGER
CFLAGS += -DSHA1
CFLAGS += -DMD5
CFLAGS += -DMD4
CFLAGS += -DMD2

# base64 
CFLAGS += -DBASE64

# prngs 
CFLAGS += -DYARROW
CFLAGS += -DSPRNG
CFLAGS += -DRC4

# PK code 
CFLAGS += -DMRSA
CFLAGS += -DMDH
CFLAGS += -DMECC
CFLAGS += -DKR

# include GF math routines?  (not currently used by anything internally)
#CFLAGS += -DGF

# include large integer math routines? (required by the PK code)
CFLAGS += -DMPI

# include HMAC support
CFLAGS += -DHMAC

#Output filenames for various targets.
LIBNAME=libtomcrypt.a
TEST=test
HASH=hashsum
CRYPT=encrypt
SMALL=small

#LIBPATH-The directory for libtomcrypt to be installed to.
#INCPATH-The directory to install the header files for libtomcrypt.
LIBPATH=/usr/lib
INCPATH=/usr/include

#List of objects to compile.
OBJECTS=keyring.o gf.o mem.o sprng.o ecc.o base64.o dh.o rsa.o \
bits.o yarrow.o cfb.o ofb.o ecb.o ctr.o cbc.o hash.o tiger.o sha1.o \
md5.o md4.o md2.o sha256.o sha512.o xtea.o aes.o serpent.o des.o \
safer_tab.o safer.o safer+.o rc4.o rc2.o rc6.o rc5.o cast5.o noekeon.o blowfish.o crypt.o \
ampi.o mpi.o prime.o twofish.o packet.o hmac.o strings.o

TESTOBJECTS=demos/test.o
HASHOBJECTS=demos/hashsum.o
CRYPTOBJECTS=demos/encrypt.o
SMALLOBJECTS=demos/small.o

#Files left over from making the crypt.pdf.
LEFTOVERS=*.dvi *.log *.aux *.toc *.idx *.ilg *.ind

#Compressed filenames
COMPRESSED=crypt.tar.bz2 crypt.zip crypt.tar.gz

#Header files used by libtomcrypt.
HEADERS=mpi-types.h mpi-config.h mpi.h \
mycrypt_cfg.h mycrypt_gf.h mycrypt_kr.h \
mycrypt_misc.h  mycrypt_prng.h mycrypt_cipher.h  mycrypt_hash.h \
mycrypt_macros.h  mycrypt_pk.h mycrypt.h mycrypt_argchk.h

#The default rule for make builds the libtomcrypt library.
default:library mycrypt.h mycrypt_cfg.h

#These are the rules to make certain object files.
rsa.o: rsa.c rsa_sys.c
ecc.o: ecc.c ecc_sys.c
dh.o: dh.c dh_sys.c
aes.o: aes.c aes_tab.c
sha512.o: sha512.c sha384.c

#This rule makes the libtomcrypt library.
library: $(OBJECTS) 
	$(AR) $(ARFLAGS) $(LIBNAME) $(OBJECTS)

#This rule makes the test program included with libtomcrypt
test: library $(TESTOBJECTS)
	$(CC) $(TESTOBJECTS) $(LIBNAME) -o $(TEST) $(WARN)

#This rule makes the hash program included with libtomcrypt
hashsum: library $(HASHOBJECTS)
	$(CC) $(HASHOBJECTS) $(LIBNAME) -o $(HASH) $(WARN)

#makes the crypt program
crypt: library $(CRYPTOBJECTS)
	$(CC) $(CRYPTOBJECTS) $(LIBNAME) -o $(CRYPT) $(WARN)

#makes the small program
small: library $(SMALLOBJECTS)
	$(CC) $(SMALLOBJECTS) $(LIBNAME) -o $(SMALL) $(WARN)

#This rule installs the library and the header files. This must be run
#as root in order to have a high enough permission to write to the correct
#directories and to set the owner and group to root.
install: library
	install -g root -o root $(LIBNAME) $(LIBPATH)
	install -g root -o root $(HEADERS) $(INCPATH)

#This rule cleans the source tree of all compiled code, not including the pdf
#documentation.
clean:
	rm -f $(OBJECTS) $(TESTOBJECTS) $(HASHOBJECTS) $(CRYPTOBJECTS) $(SMALLOBJECTS) $(LEFTOVERS) $(LIBNAME)
	rm -f $(TEST) $(HASH) $(COMPRESSED)
	rm -f *stackdump *.lib *.exe *.obj demos/*.obj zlib/*.obj *.bat

#This builds the crypt.pdf file. Note that the rm -f *.pdf has been removed
#from the clean command! This is because most people would like to keep the
#nice pre-compiled crypt.pdf that comes with libtomcrypt! We only need to
#delete it if we are rebuilding it.
docs: crypt.tex
	rm -f crypt.pdf
	rm -f $(LEFTOVERS)
	latex crypt > /dev/null
	makeindex crypt > /dev/null
	pdflatex crypt > /dev/null
	rm -f $(LEFTOVERS)

#zipup the project (take that!)
zipup: clean docs
	chdir .. ; rm -rf crypt* libtomcrypt-$(VERSION) ; mkdir libtomcrypt-$(VERSION) ; \
	cp -R ./libtomcrypt/* ./libtomcrypt-$(VERSION)/ ; tar -c libtomcrypt-$(VERSION)/* > crypt-$(VERSION).tar ; \
	bzip2 -9vv crypt-$(VERSION).tar ; zip -9 -r crypt-$(VERSION).zip libtomcrypt-$(VERSION)/*