### -*-makefile-*-
###
### Build script for symmetric cryptography
###
### (c) 2013 Straylight/Edgeware
###

###----- Licensing notice ---------------------------------------------------
###
### This file is part of Catacomb.
###
### Catacomb is free software; you can redistribute it and/or modify
### it under the terms of the GNU Library General Public License as
### published by the Free Software Foundation; either version 2 of the
### License, or (at your option) any later version.
###
### Catacomb is distributed in the hope that it will be useful,
### but WITHOUT ANY WARRANTY; without even the implied warranty of
### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
### GNU Library General Public License for more details.
###
### You should have received a copy of the GNU Library General Public
### License along with Catacomb; if not, write to the Free
### Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
### MA 02111-1307, USA.

include $(top_srcdir)/vars.am

noinst_LTLIBRARIES	 = libsymm.la
libsymm_la_SOURCES	 =
nodist_libsymm_la_SOURCES =

TEST_LIBS		 = libsymm.la

VPATH			+= $(srcdir)/modes

###--------------------------------------------------------------------------
### Autogenerated lists.

## Fancy template substitutions.
multigen		 = $(PYTHON) $(srcdir)/multigen
EXTRA_DIST		+= multigen

## The heart of this is an enormous cross-product of crypto primitives and
## the corresponding modes of operation.  Rather than write it out longhand,
## we generate it using `multigen'.  Unfortunately, this needs to be done
## at the Automake level, which causes some interesting bootstrapping
## problems.
include modes.am

EXTRA_DIST		+= modes.am.in modes.am
MAINTAINERCLEANFILES	+= $(srcdir)/modes.am

## Generate the lists.
$(srcdir)/modes.am: modes.am.in
	$(AM_V_GEN)$(multigen) -g $(srcdir)/modes.am.in $(srcdir)/modes.am \
		blkc="$(BLKCS)" \
			blkcmode="$(BLKCMODES)" \
			blkcciphermode="$(BLKCCIPHERMODES)" \
		hash="$(HASHES)" \
			hashmode="$(HASHMODES)" \
			hashciphermode="$(HASHCIPHERMODES)" \
			hashmacmode="$(HASHMACMODES)"

## Initialize lists of known classes.
ALL_CIPHERS		 = $(CIPHER_MODES)
ALL_HASHES		 = $(HASHES)
ALL_MACS		 = $(MAC_MODES)

###--------------------------------------------------------------------------
### Block ciphers.

BLKCS			 =
BLKCMODES		 =

BLKCCIPHERMODES		 =
BLKCMODES		+= $(BLKCCIPHERMODES)

## A tool for translating the AES-contest test vectors into a form our test
## rigs understand.
EXTRA_DIST		+= aes-trans

## Block cipher utility macros, mainly used in mode implementations.
pkginclude_HEADERS	+= blkc.h

## Source code and headers for the block ciphers.
libsymm_la_SOURCES	+= $(BLKC_C)
pkginclude_HEADERS	+= $(BLKC_H)

## Schneier's `Blowfish' block cipher.
BLKCS			+= blowfish
libsymm_la_SOURCES	+= $(precomp)/blowfish-tab.c
PRECOMPS		+= $(precomp)/blowfish-tab.c
PRECOMP_PROGS		+= blowfish-mktab
blowfish_mktab_CPPFLAGS	 = $(AM_CPPFLAGS) -DQUIET
if !CROSS_COMPILING
$(precomp)/blowfish-tab.c:
	$(AM_V_at)$(MKDIR_P) $(precomp)
	$(AM_V_at)$(MAKE) blowfish-mktab$e
	$(AM_V_GEN)./blowfish-mktab >$(precomp)/blowfish-tab.c.new && \
		mv $(precomp)/blowfish-tab.c.new $(precomp)/blowfish-tab.c
endif

## Adams and Tavares' `CAST' block ciphers.
BLKCS			+= cast128 cast256
libsymm_la_SOURCES	+= cast-s.c cast-sk.c cast-base.h
cast256.$t: t/cast256
EXTRA_DIST		+= t/cast256.aes
MAINTAINERCLEANFILES	+= $(srcdir)/t/cast256
t/cast256: t/cast256.aes
	$(AM_V_GEN)$(srcdir)/aes-trans CAST256 \
		<$(srcdir)/t/cast256.aes \
		>$(srcdir)/t/cast256.new && \
	mv $(srcdir)/t/cast256.new $(srcdir)/t/cast256

## IBM's `DES' block cipher, by Feistel, Coppersmith, and others.
BLKCS			+= des des3
libsymm_la_SOURCES	+= des-base.h $(precomp)/des-tab.c
PRECOMPS		+= $(precomp)/des-tab.c
PRECOMP_PROGS		+= des-mktab
if !CROSS_COMPILING
$(precomp)/des-tab.c:
	$(AM_V_at)$(MKDIR_P) $(precomp)
	$(AM_V_at)$(MAKE) des-mktab$e
	$(AM_V_GEN)./des-mktab >$(precomp)/des-tab.c.new && \
		mv $(precomp)/des-tab.c.new $(precomp)/des-tab.c
endif

## Rivest's `DESX' variant, with pre- and post-whitening.
BLKCS			+= desx
libsymm_la_SOURCES	+= desx-tab.c

## Lai and Massey's IDEA.
BLKCS			+= idea

## IBM's `MARS' block cipher.
BLKCS			+= mars
libsymm_la_SOURCES	+= $(precomp)/mars-tab.c
PRECOMPS		+= $(precomp)/mars-tab.c
PRECOMP_PROGS		+= mars-mktab
if !CROSS_COMPILING
$(precomp)/mars-tab.c:
	$(AM_V_at)$(MKDIR_P) $(precomp)
	$(AM_V_at)$(MAKE) mars-mktab$e
	$(AM_V_GEN)./mars-mktab >$(precomp)/mars-tab.c.new && \
		mv $(precomp)/mars-tab.c.new $(precomp)/mars-tab.c
endif
mars.$t: t/mars
EXTRA_DIST		+= t/mars.aes
MAINTAINERCLEANFILES	+= $(srcdir)/t/mars
t/mars: t/mars.aes
	$(AM_V_GEN)$(srcdir)/aes-trans Mars \
		<$(srcdir)/t/mars.aes \
		>$(srcdir)/t/mars.new && \
	mv $(srcdir)/t/mars.new $(srcdir)/t/mars

## Daemen, Peeters, Van Assche and Rijmen's `Noekeon'.
BLKCS			+= noekeon

## Rivest's `RC2' block cipher.
BLKCS			+= rc2
libsymm_la_SOURCES	+= rc2-tab.c

## Rivest's `RC5'.
BLKCS			+= rc5

## Daemen and Rijmen's `Rijndael' block cipher, selected as AES.
BLKCS			+= rijndael rijndael192 rijndael256
libsymm_la_SOURCES	+= rijndael-base.h rijndael-base.c
libsymm_la_SOURCES	+= $(precomp)/rijndael-tab.c
PRECOMPS		+= $(precomp)/rijndael-tab.c
PRECOMP_PROGS		+= rijndael-mktab
if !CROSS_COMPILING
$(precomp)/rijndael-tab.c:
	$(AM_V_at)$(MKDIR_P) $(precomp)
	$(AM_V_at)$(MAKE) rijndael-mktab$e
	$(AM_V_GEN)./rijndael-mktab >$(precomp)/rijndael-tab.c.new && \
		mv $(precomp)/rijndael-tab.c.new $(precomp)/rijndael-tab.c
endif
rijndael.$t: t/rijndael
EXTRA_DIST		+= t/rijndael.aes
MAINTAINERCLEANFILES	+= $(srcdir)/t/rijndael
t/rijndael: t/rijndael.aes
	$(AM_V_GEN)$(srcdir)/aes-trans Rijndael \
		<$(srcdir)/t/rijndael.aes \
		>$(srcdir)/t/rijndael.new && \
	mv $(srcdir)/t/rijndael.new $(srcdir)/t/rijndael

## Massey's `SAFER' block ciphers.
BLKCS			+= safer safersk
libsymm_la_SOURCES	+= $(precomp)/safer-tab.c
PRECOMPS		+= $(precomp)/safer-tab.c
PRECOMP_PROGS		+= safer-mktab
if !CROSS_COMPILING
$(precomp)/safer-tab.c:
	$(AM_V_at)$(MKDIR_P) $(precomp)
	$(AM_V_at)$(MAKE) safer-mktab$e
	$(AM_V_GEN)./safer-mktab >$(precomp)/safer-tab.c.new && \
		mv $(precomp)/safer-tab.c.new $(precomp)/safer-tab.c
endif

## Anderson, Biham and Knudsen's `Serpent' block cipher.
BLKCS			+= serpent
libsymm_la_SOURCES	+= serpent-sbox.h
check_PROGRAMS		+= serpent-check
TESTS			+= serpent-check
serpent.$t: t/serpent
EXTRA_DIST		+= t/serpent.aes
MAINTAINERCLEANFILES	+= $(srcdir)/t/serpent
t/serpent: t/serpent.aes
	$(AM_V_GEN)$(srcdir)/aes-trans Serpent -v rev=1 \
		<$(srcdir)/t/serpent.aes \
		>$(srcdir)/t/serpent.new && \
	mv $(srcdir)/t/serpent.new $(srcdir)/t/serpent

## The National Security Agency's `Skipjack' block cipher.  You don't want to
## use this.
BLKCS			+= skipjack
libsymm_la_SOURCES	+= skipjack-tab.c

## Daemen and Rijmen's `Square' block cipher.
BLKCS			+= square
libsymm_la_SOURCES	+= $(precomp)/square-tab.c
PRECOMPS		+= $(precomp)/square-tab.c
PRECOMP_PROGS		+= square-mktab
if !CROSS_COMPILING
$(precomp)/square-tab.c:
	$(AM_V_at)$(MKDIR_P) $(precomp)
	$(AM_V_at)$(MAKE) square-mktab$e
	$(AM_V_GEN)./square-mktab >$(precomp)/square-tab.c.new && \
		mv $(precomp)/square-tab.c.new $(precomp)/square-tab.c
endif

## Wheeler and Needham's `TEA' and `XTEA' block ciphers.
BLKCS			+= tea xtea

## Schneier, Kelsey, Whiting, Wagner, Hall and Ferguson's `Twofish' block
## cipher.
BLKCS			+= twofish
libsymm_la_SOURCES	+= $(precomp)/twofish-tab.c
PRECOMPS		+= $(precomp)/twofish-tab.c
PRECOMP_PROGS		+= twofish-mktab
if !CROSS_COMPILING
$(precomp)/twofish-tab.c:
	$(AM_V_at)$(MKDIR_P) $(precomp)
	$(AM_V_at)$(MAKE) twofish-mktab$e
	$(AM_V_GEN)./twofish-mktab >$(precomp)/twofish-tab.c.new && \
		mv $(precomp)/twofish-tab.c.new $(precomp)/twofish-tab.c
endif
twofish.$t: t/twofish
EXTRA_DIST		+= t/twofish.aes
MAINTAINERCLEANFILES	+= $(srcdir)/t/twofish
t/twofish: t/twofish.aes
	$(AM_V_GEN)$(srcdir)/aes-trans Twofish \
		<$(srcdir)/t/twofish.aes \
		>$(srcdir)/t/twofish.new && \
	mv $(srcdir)/t/twofish.new $(srcdir)/t/twofish

## The old NIST modes for DES.
BLKCCIPHERMODES		+= cbc cfb ecb ofb

## Counter mode.
BLKCCIPHERMODES		+= counter

###--------------------------------------------------------------------------
### Hash functions.

HASHES			 =
HASHMODES		 =

HASHCIPHERMODES		 =
HASHMODES		+= $(HASHCIPHERMODES)

HASHMACMODES		 =
HASHMODES		+= $(HASHMACMODES)

## Common definitions for hash functions.
pkginclude_HEADERS	+= hash.h

## Source code and headers for the hash functions.
libsymm_la_SOURCES	+= $(HASH_C)
pkginclude_HEADERS	+= $(HASH_H)

## Lim and KISA's `HAS-160', recommended for use with KCDSA.
HASHES			+= has160

## Rivest's `MD' series of hash functions
HASHES			+= md2 md4 md5
libsymm_la_SOURCES	+= md2-tab.c

## Dobbertin, Bosselaers and Preneel's `RIPEMD' suite.
HASHES			+= rmd128 rmd160 rmd256 rmd320

## The National Security Agency's `SHA-1' hash function.
HASHES			+= sha

## The National Security Agency's `SHA-2' suite.
HASHES			+= sha224 sha256
HASHES			+= sha384 sha512

## Anderson and Biham's `Tiger' hash function.
HASHES			+= tiger
libsymm_la_SOURCES	+= tiger-base.h $(precomp)/tiger-tab.c
PRECOMPS		+= $(precomp)/tiger-tab.c
PRECOMP_PROGS		+= tiger-mktab
if !CROSS_COMPILING
$(precomp)/tiger-tab.c:
	$(AM_V_at)$(MKDIR_P) $(precomp)
	$(AM_V_at)$(MAKE) tiger-mktab$e
	$(AM_V_GEN)./tiger-mktab >$(precomp)/tiger-tab.c.new && \
		mv $(precomp)/tiger-tab.c.new $(precomp)/tiger-tab.c
endif

## Barreto and Rijmen's `Whirlpool' hash function.
HASHES			+= whirlpool whirlpool256
libsymm_la_SOURCES	+= $(precomp)/whirlpool-tab.c
PRECOMPS		+= $(precomp)/whirlpool-tab.c
PRECOMP_PROGS		+= whirlpool-mktab
if !CROSS_COMPILING
$(precomp)/whirlpool-tab.c:
	$(AM_V_at)$(MKDIR_P) $(precomp)
	$(AM_V_at)$(MAKE) whirlpool-mktab$e
	$(AM_V_GEN)./whirlpool-mktab >$(precomp)/whirlpool-tab.c.new && \
		mv $(precomp)/whirlpool-tab.c.new $(precomp)/whirlpool-tab.c
endif

## Bellare, Canetti and Krawczyk's `HMAC' mode for message authentication.
HASHMACMODES		+= hmac

## MGF1, used in OAEP and PSS.
HASHCIPHERMODES		+= mgf

###--------------------------------------------------------------------------
### Other symmetric primitives.

## The CRC32 algorithm, which is useful, but has no worthwhile security.
pkginclude_HEADERS	+= crc32.h
libsymm_la_SOURCES	+= crc32.c
ALL_HASHES		+= crc32=gcrc32

## Rivest's `RC4' stream cipher.
pkginclude_HEADERS	+= rc4.h
libsymm_la_SOURCES	+= rc4.c
TESTS			+= rc4.$t
EXTRA_DIST		+= t/rc4
ALL_CIPHERS		+= rc4

## Coppersmith and Rogaway's `SEAL' pseudorandom function.
pkginclude_HEADERS	+= seal.h
libsymm_la_SOURCES	+= seal.c
TESTS			+= seal.$t
EXTRA_DIST		+= t/seal
ALL_CIPHERS		+= seal

###--------------------------------------------------------------------------
### Autogenerated mode implementations.

## The master stamp file, indicating that we generated all of the sources.
EXTRA_DIST		+= mode.h.in mode.c.in
EXTRA_DIST		+= modes/gen-stamp
MAINTAINERCLEANFILES	+= modes/gen-stamp
modes/gen-stamp:
	$(AM_V_at)$(MKDIR_P) $(srcdir)/modes
	$(AM_V_GEN)$(multigen) -g $(srcdir)/mode.c.in \
		$(srcdir)/modes/@base-@mode.c \
		base="$(BLKCS)" mode="$(BLKCMODES)"
	$(AM_V_at)$(multigen) -g $(srcdir)/mode.h.in \
		$(srcdir)/modes/@base-@mode.h \
		base="$(BLKCS)" mode="$(BLKCMODES)"
	$(AM_V_at)$(multigen) -g $(srcdir)/mode.c.in \
		$(srcdir)/modes/@base-@mode.c \
		base="$(HASHES)" mode="$(HASHMODES)"
	$(AM_V_at)$(multigen) -g $(srcdir)/mode.h.in \
		$(srcdir)/modes/@base-@mode.h \
		base="$(HASHES)" mode="$(HASHMODES)"
	$(AM_V_at)touch $(srcdir)/modes/gen-stamp

## The individual mode interfaces and implementations.
pkginclude_HEADERS	+= $(MODE_H)

## Generated implementations.
BUILT_SOURCES		+= $(GENMODES_C)
EXTRA_DIST		+= $(GENMODES_C)
MAINTAINERCLEANFILES	+= $(GENMODES_C)
nodist_libsymm_la_SOURCES += $(GENMODES_C)
$(GENMODES_C): modes/gen-stamp

## Generated interfaces.
BUILT_SOURCES		+= $(GENMODES_H)
EXTRA_DIST		+= $(GENMODES_H)
MAINTAINERCLEANFILES	+= $(GENMODES_H)
nodist_pkginclude_HEADERS += $(GENMODES_H)
$(GENMODES_H): modes/gen-stamp

###--------------------------------------------------------------------------
### Tables of classes for encryption, hashing, and message authentication.

## The skeleton for the class tables.
EXTRA_DIST		+= gthingtab.c.in

## Table of cipher classes.
pkginclude_HEADERS	+= gcipher.h
CLEANFILES		+= gciphertab.c
nodist_libsymm_la_SOURCES += gciphertab.c
gciphertab.c: gthingtab.c.in
	$(AM_V_GEN)$(multigen) -g $(srcdir)/gthingtab.c.in gciphertab.c \
		what=gcipher cls=gccipher thing="$(ALL_CIPHERS)"

## Table of hash classes.
pkginclude_HEADERS	+= ghash.h ghash-def.h
CLEANFILES		+= ghashtab.c
nodist_libsymm_la_SOURCES += ghashtab.c
ghashtab.c: gthingtab.c.in
	$(AM_V_GEN)$(multigen) -g $(srcdir)/gthingtab.c.in ghashtab.c \
		what=ghash cls=gchash thing="$(ALL_HASHES)"

## Table of MAC classes.
pkginclude_HEADERS	+= gmac.h
CLEANFILES		+= gmactab.c
nodist_libsymm_la_SOURCES += gmactab.c
gmactab.c: gthingtab.c.in
	$(AM_V_GEN)$(multigen) -g $(srcdir)/gthingtab.c.in gmactab.c \
		what=gmac cls=gcmac thing="$(ALL_MACS)"

###--------------------------------------------------------------------------
### Testing.

## Run the test programs.
TESTS			+= $(SYMM_TESTS)
EXTRA_DIST		+= $(SYMM_TEST_FILES)

## A piece of sample text for round-trip testing encryption modes.
EXTRA_DIST		+= daftstory.h

## Clean the debris from the `modes' subdirectory.
CLEANFILES		+= modes/*.to modes/*.$t

###----- That's all, folks --------------------------------------------------