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2002-10-09  Niels Mller  <nisse@cuckoo.hack.org>

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	* Makefile.am (libnettle_a_SOURCES): Added bignum-random.c and
	dsa-keygen.c. 

	* testsuite/testutils.c (test_dsa_key): New function to sanity
	check a dsa keypair.

	* testsuite/dsa-test.c (test_main): Call dsa_test_key.

	* testsuite/dsa-keygen-test.c: New test case.

	* dsa.h (DSA_MINIMUM_BITS): New constant.

	* bignum.h (nettle_mpz_random, nettle_mpz_random_size): Added
	prototypes.

	* dsa-keygen.c: New file.

	* bignum-random.c: New file.
	(nettle_mpz_random): New function, moved from...
	* dsa-sign.c (nettle_mpz_random): ... here. Also changed argument
	ordering and updated callers. 
	
	* bignum-random.c: (nettle_mpz_random_size): New function, renamed
	and moved here from...  
	* rsa-keygen.c (bignum_random_size): ... here. Updated all
	callers. 

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	* testsuite/testutils.c (test_dsa): Needs both public and private
	key as arguments.

	* testsuite/dsa-test.c (test_main): Updated to changes of the
	private key struct.

	* testsuite/Makefile.am (TS_PROGS): Added dsa-test.

	* rsa-decrypt.c (rsa_decrypt): Constification.
	* rsa-encrypt.c (rsa_encrypt): Likewise.
	* rsa.c (rsa_compute_root): Likewise.
	* rsa_md5.c (rsa_md5_sign): Likewise.
	(rsa_md5_verify): Likewise.
	* rsa_sha1.c (rsa_sha1_sign): Likewise.
	(rsa_sha1_verify): Likewise.

	* dsa-verify.c (dsa_verify): Use const for the public key
	argument. 

	* dsa-sign.c (dsa_sign): Needs the public key as argument, in
	addition to the private key. Use const.

	* dsa.h (struct dsa_private_key): Don't include the public
	information here. 
	* dsa.c (dsa_private_key_init, dsa_private_key_clear): Updated to
	new struct dsa_private_key.  

	* dsa-sign.c (dsa_sign): Bugfix, added missing mpz_init call. 

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	* Makefile.am (libnettle_a_SOURCES): Added dsa files.
	(libnettleinclude_HEADERS): Added dsa.h.

	* testsuite/testutils.c (test_dsa): New function.

	* testsuite/dsa-test.c: New test.

	* dsa.h, dsa.c, dsa-sign.c, dsa-verify.c: New files.

	* nettle-meta.h: Moved the nettle_random_func and
	nettle_progress_func typedefs here...
	* rsa.h: ... from here.	

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2002-10-07  Niels Mller  <nisse@cuckoo.hack.org>

	* sexp.h (enum sexp_type): Deleted SEXP_START.

	* sexp.c (sexp_iterator_parse): New function, similar to the old
	sexp_iterator_next, but independent of the previous value of the
	iterator->type. 
	(sexp_iterator_first): Use sexp_iterator_parse.
	(sexp_iterator_next): Likewise.
	(sexp_iterator_enter_list): Use sexp_iterator_parse. SEXP_START
	not needed anymore.
	(sexp_iterator_exit_list): Likewise.

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2002-10-06  Niels Mller  <nisse@cuckoo.hack.org>

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	* sexp2rsa.c (get_value): No need to call sexp_iterator_next
	anymore. 

	* sexp.c (sexp_iterator_assoc): Advance the iterator to the
	element after a matching tag, before recording it.
	* testsuite/sexp-test.c (test_main): Updated test.

	* testsuite/sexp-test.c (test_main): No need to call
	sexp_iterator_next after sexp_iterator_exit_list.

	* sexp2rsa.c (rsa_keypair_from_sexp): No need to call
	sexp_iterator_next anymore.

	* sexp.c (sexp_iterator_next): Updated to new sexp_iterator_exit_list.
	(sexp_iterator_exit_list): Return with iterator pointing to the
	element after the list.
	(sexp_iterator_check_type): Call sexp_iterator_next before
	returning. 
	(sexp_iterator_check_types): Likewise.
	(sexp_iterator_assoc): Rearranged calls of sexp_iterator_next. 

	* sexp.c (sexp_iterator_enter_list): Call sexp_iterator_next to
	get to the first element of the list. Updated callers.

	* base64.c (base64_encode_group): New function, used by openpgp
	armoring code.

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	* Makefile.am: Added openpgp files.

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	* sexp2rsa.c (rsa_keypair_from_sexp): Use sexp_iterator_first.
	* testsuite/sexp-test.c (test_main): Likewise.

	* sexp.c (sexp_iterator_init): Made this function static.
	(sexp_iterator_first): New, friendlier, initialization function. 

	* pgp-encode.c: New file. Functions for writing openpgp data
	packets. 

	* pgp.h: New file, with pgp related declarations.

	* rsa2openpgp.c (rsa_keypair_to_openpgp): New file, new function. 

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2002-10-04  Niels Mller  <niels@s3.kth.se>

	* examples/rsa-keygen.c: Use malloc, instead of asprintf.

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2002-10-03  Niels Mller  <nisse@cuckoo.hack.org>
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	* Released nettle-1.6.

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	* NEWS: Note the aes api change.

	* examples/Makefile.am (EXTRA_DIST): Distribute setup-env and
	teardown-env. 

2002-10-02  Niels Mller  <nisse@cuckoo.hack.org>

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	* examples/rsa-keygen.c (main): Comment on the lax security of the
	private key file.

	* index.html: Added link to mailing list.

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2002-10-02  Niels Mller  <niels@s3.kth.se>

	* Makefile.am: Fixed assembler rules, and shared libraries.

	* configure.ac: Fixed the enable-shared option.

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2002-10-01  Niels Mller  <nisse@cuckoo.hack.org>

	* configure.ac: New option --enable-shared, and a first attempt at
	building a shared library (*without* using libtool).

	* Makefile.am: A first attempt at rules for building a shared
	libnettle.so. 

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2002-10-01  Niels Mller  <niels@s3.kth.se>

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	* examples/run-tests (test_program): Use basename.

	* examples/teardown-env: Delete some more files.

	* examples/run-tests (test_program): Strip directory part of
	displayed name.

	* examples/Makefile.am (TS_PROGS): New variable. Run tests.

	* examples/io.c (read_file): Bug fix, used to overwrite pointer.

	* examples/rsa-keygen.c (main): Bug fix, private key wasn't
	written properly.

	* testsuite/Makefile.am: Some cleanup of make check.

	* examples/setup-env, examples/teardown-env: Test environment scripts.
	* examples/rsa-verify-test, examples/rsa-sign-test: New test cases.

	* examples/run-tests: New file (copied from lsh testsuite).

	* examples/Makefile.am: Use EXTRA_PROGRAMS and @RSA_EXAMPLES@.

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	* examples/rsa-sign.c: No need to include config.h. Use werror
	instead of fprintf.
	* examples/rsa-verify.c: Likewise.
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	* examples/rsa-keygen.c: Likewise.
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	* examples/io.h: Forward declare struct rsa_public_key and struct
	rsa_private_key, to avoid dependences on config.h. 

	* configure.ac (RSA_EXAMPLES): New substituted variable,
	controlling which example programs to build.

	* examples/rsa-verify.c: New example program.

	* examples/rsa-keygen.c: Use functions from io.c.
	* examples/rsa-sign.c: Likewise.

	* examples/Makefile.am (noinst_PROGRAMS): Added rsa-verify.
	(LDADD): Added io.o.

	* configure.ac: New define WITH_PUBLIC_KEY, and new configure flag
	--disable-public-key. Updated rsa-files to check for that, rather
	than for HAVE_LIBGMP. 

	* examples/io.c, examples/io.c: New files. Miscellaneous functions
	used by the example programs.

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	* base64.h (BASE64_DECODE_LENGTH): Comment fix.

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2002-09-30  Niels Mller  <nisse@cuckoo.hack.org>

	* sexp2rsa.c (rsa_keypair_from_sexp): Bugfix: Call
	rsa_prepare_public_key and rsa_prepare_private_key.

	* examples/Makefile.am (noinst_PROGRAMS): Added rsa-sign.

	* examples/rsa-sign.c: New example program.

	* testsuite/base64-test.c (test_main): Test encoding and decoding
	in place.

	* base64.c (base64_encode): Encode from the end of the data
	towards the start, in order to support overlapping areas.
	(base64_encode): Broke out some common code from the switch..

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2002-09-30  Niels Mller  <niels@s3.kth.se>

	* sexp_format.c (sexp_format): Don't mix code and declarations.

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2002-09-29  Niels Mller  <nisse@cuckoo.hack.org>

	* testsuite/Makefile.am (TS_PROGS): Added buffer-test
	sexp-format-test rsa2sexp-test sexp2rsa-test. 


	* testsuite/sexp-test.c (test_main): Updated calls to
	sexp_iterator_assoc. 

	* testsuite/testutils.h (MEMEQH): New macro.

	* testsuite/sexp2rsa-test.c: New test.
	* testsuite/sexp-format-test.c: New test.
	* testsuite/rsa2sexp-test.c: New test.
	* testsuite/buffer-test.c: New test.

	* testsuite/testutils.c (test_rsa_key): Copied this function
	from...
	testsuite/rsa-keygen-test.c: ... here.

	* examples/rsa-keygen.c: New file.

	* Makefile.am: Added new source files and headers buffer.h,
	buffer.c, sexp_format.c, sexp2rsa.c, rsa2sexp.c.

	* rsa.h (rsa_keypair_to_sexp, rsa_keypair_from_sexp): New
	prototypes. 

	* rsa2sexp.c, sexp2rsa.c: New files.

	* sexp.c (sexp_iterator_assoc): Don't enter the list, associate
	keys within the current list. Still exit the list when done.
	(sexp_iterator_assoc): Represent keys as plain NUL-terminated
	strings. 
	(sexp_iterator_check_type, sexp_iterator_check_types): New
	functions. 

	* sexp_format.c: New file, implementing an sexp canonical syntax
	formatter.

	* buffer.c, buffer.h: New files, implementing a bare-bones string
	stream.

	* bignum.c (nettle_mpz_sizeinbase_256): New function.

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2002-09-28  Niels Mller  <nisse@cuckoo.hack.org>

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	* sexp.c (sexp_iterator_assoc): Return 0 for missing or duplicate
	keys. Now passes all the tests.

	* sexp.c (sexp_iterator_simple): Bugfixes. Check earlier that
	length doesn't grow too large.
	(sexp_iterator_next): Skip the current list only if type is
	SEXP_LIST. Handle ')'.
	(sexp_iterator_enter_list): Set type to SEXP_START.
	(sexp_iterator_exit_list): Likewise. Don't skip the ')' here. 
	(sexp_iterator_assoc): Bug fix.

	* testsuite/sexp-test.c (test_main): Reordered sexp_iterator_assoc
	tests. 

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	* nettle.texinfo (Randomness): Documented that yarrow256_init can
	be called with a zero number of sources.

	* testsuite/testutils.h (ASSERT): New macro.

	* testsuite/sexp-test.c: Test sexp parser.

	* Makefile.am (SUBDIRS): Added sexp files.

	* sexp.c, sexp.h: New files, implementing an sexp-parser.

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2002-08-27  Niels Mller  <niels@s3.kth.se>

	* Makefile.am (DISTCLEANFILES): make distclean should delete the
	assembler-related symlinks.

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2002-08-26  Niels Mller  <nisse@cuckoo.hack.org>

	* Makefile.am (%.o: %.asm): Create an empty (and unused)
	dependency file, to make the make/automake dependency tracking
	happier. 

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2002-07-18  Niels Mller  <niels@s3.kth.se>

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	* examples/nettle-benchmark.c (main): Try openssl's ciphers as
	well, if available.

	* Makefile.am (libnettle_a_SOURCES): Added nettle-openssl.c.

	* nettle-openssl.c: New file.

	* nettle-internal.h: Declare openssl glue ciphers.

	* des-compat.h: Extra name-mangling, to avoid collisions in case a
	program links with both nettle and libcrypto (the nettle-benchmark
	program does).

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	* configure.ac: Don't use -ggdb3 with gcc-2.96. 
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	Check for openssl's libcrypto (for benchmarking).
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2002-05-16  Niels Mller  <nisse@cuckoo.hack.org>

	* sparc/aes.asm: Deleted registers i and t3.
	(_aes_crypt): Moved some registers around. We now use input
	registers only for arguments, local registers for loop invariants,
	output registers for temporaries and loop variables, and no global
	registers at all.

	* sparc/aes.asm (AES_FINAL_ROUND): New macro.
	(_aes_crypt): Use AES_FINAL_ROUND for the first word if the final
	round. 
	(_aes_crypt): And for the rest of the final round.
	(AES_FINAL_ROUND): Don't update dst, just access it offseted by i.
	(_aes_crypt): Add 16 to dst at the end of the final round.
	(AES_ROUND): Use ldub, not ld + and, to get the third byte
	of wtxt.
	(AES_ROUND): Use ldub, not lduh + and, to get the second
	byte of a word.
	(AES_ROUND): Reordered instructions, so that we can save one
	register. 
	(AES_ROUND): Eliminated use of t3.
	(AES_FINAL_ROUND): Eliminated ands.
	(AES_FINAL_ROUND): Reordered, so that we can save one register. 
	(AES_FINAL_ROUND): Eliminated t3.
	(AES_LOAD): New macro.
	(_aes_crypt): Unrolled source loop.
	(_aes_crypt): Use AES_LOAD macro.
	(_aes_crypt): Deleted cruft from the old source loop.
	(AES_LOAD): Eliminated t3.

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2002-05-15  Niels Mller  <nisse@cuckoo.hack.org>

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	* sparc/aes.asm (AES_ROUND): New macro.
	(_aes_crypt): Use AES_ROUND for first word of the
	round function.
	(_aes_crypt): And for the rest of the round function.
	
	* sparc/aes.asm (_aes_crypt): Deleted a bunch of additions,
	after accessing IDX1.

	* aes-internal.h (struct aes_table): sparc_idx[0] should now
	contain index values shifted by the size of a word, and with 2
	added. This saves some additions in the sparc assembler code.
	Updates aes-encrypt-table.c and aes-decrypt-table.c.

	* sparc/aes.asm (_aes_crypt): Unrolled final loop, preparing for
	optimizations. 
	(_aes_crypt): Eliminated i from forst copy of the loop. Some
	cleanup. 
	(_aes_crypt): And from second copy.
	(_aes_crypt): And from third.
	(_aes_crypt): And fourth.
	(_aes_crypt): Eliminated updates of i from the loop.
	(_aes_crypt): Access IDX1 and IDX3 through the T pointer, saving
	two registers.

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	* aes-internal.h (struct aes_table): Renamed the shift_idx field
	to sparc_idx, as it will be tweaked to improve the sparc code.
	Also reduced its size to [2][4].
	(IDX_FACTOR): Deleted constant.
	* aes-encrypt-table.c (_aes_encrypt_table): Adapted initializer of
	sparc_idx. 
	* aes-decrypt-table.c (_aes_decrypt_table): Likewise.
	* asm.m4: Deleted AES_SIDX2, to match struct aes_table.

	* sparc/aes.asm (_aes_crypt): Unrolled the inner loop, preparing
	for optimizations suggested by Marcus Comstedt.
	(_aes_crypt): Eliminated i from the first copy of the inner loop.
	(_aes_crypt): And from the second copy.
	(_aes_crypt): And from the third copy.
	(_aes_crypt): And from the fourth copy.
	(_aes_crypt): Renamed .Linner_loop to .Lround_loop.
	(_aes_crypt): Eliminated the loop variable i from the unrolled
	loop. 
	(_aes_crypt): Deleted moves of constants into t2.

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2002-05-15  Niels Mller  <niels@s3.kth.se>

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	* x86/aes-encrypt.asm (aes_encrypt): Use AES_SUBST_BYTE.
	* x86/aes-decrypt.asm (aes_decrypt): Likewise.
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	(aes_decrypt): Use AES_STORE.
	(aes_decrypt): Deleted first xchgl instruction into, permuting the
	AES_ROUND calls instead.
	(aes_decrypt): Likewise for the final round.
	(aes_decrypt): Got rid if the xchgl instruction after the final
	round, folding it into the final round.
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	* x86/machine.m4: Renamed AES_LAST_ROUND to AES_FINAL_ROUND.
	Updated users. 

	* x86/aes-decrypt.asm (aes_decrypt): Use the AES_LOAD macro.
	(aes_decrypt): Start using AES_ROUND.
	(aes_decrypt): Use AES_LAST_ROUND.

	* x86/aes-decrypt.asm (aes_decrypt): Moved function to a separate
	file... 
	* x86/aes.asm: ... from here.

	* x86/aes.asm (aes_decrypt): Use _aes_decrypt_table instead of
	itbl1-4. Commented out the inclusion of aes_tables.asm. 
	(aes_decrypt): Use _aes_decrypt_table instead of isbox.
	

	* x86/aes-decrypt.asm: New file, empty at the start.

	* Makefile.am (libnettle_a_SOURCES): Added aes-decrypt-table.c.

	* aes-decrypt.c (_aes_decrypt_table): Moved from this file...
	* aes-decrypt-table.c (_aes_decrypt_table): ... to a new file.
	
	* testsuite/aes-test.out: New file, with the output of
	testsuite/aes-test, when aes.c has been compiled with debugging
	printouts of intermediate state.

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2002-05-15  Niels Mller  <nisse@cuckoo.hack.org>

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	* sparc/aes.asm: (_aes_crypt): Restore %fp at end of function, to
	make %fp available for other uses.

	* sparc/aes.asm: The frame setup was broken. Tried to fix it.
	Reverted to revision 1.70 + minor changes from the head revision.

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	* x86/aes-encrypt.asm (aes_encrypt): Use test instead of cmpl $0,.

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	* x86/machine.m4 (AES_SUBST_BYTE): New macro.

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	* sparc/aes.asm: wtxt needs no register of it's own, as its
	pointed to by %sp. %g5 moved to %l0, the register previously
	allocated for wtxt, so that we stay clean of the reserved %g
	registers.

2002-05-14  Niels Mller  <nisse@cuckoo.hack.org>

	* sparc/aes.asm: Avoid using %g6 and %g7, as they are reserved for
	operating sytem use. Use %i5 and %o7 instead. Also moved %g4 to %g1.
	(_aes_crypt): Allocate only 32 bytes local storage on the stack.
	Calculate wtxt and tmp using offsets from %sp, not %fp. 

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2002-05-14  Niels Mller  <niels@s3.kth.se>

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	* x86/aes-encrypt.asm (aes_encrypt): Replaced first quarter of the
	round function with an invocation of AES_ROUND.
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	(aes_encrypt): Similarly for the second column.
	(aes_encrypt): Similarly for the rest of the round function.
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	* x86/machine.m4 (AES_ROUND): New macro.

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	* x86/aes-encrypt.asm (aes_encrypt): Use AES_LOAD macro.

	* x86/machine.m4 (AES_LOAD): New macro.

	* x86/aes-encrypt.asm (aes_encrypt): Use AES_STORE.

	* x86/machine.m4 (AES_STORE): New macro.

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	* x86/aes-encrypt.asm (aes_encrypt): Use the AES_LAST_ROUND macro
	for the first column of the final round.
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	(aes_encrypt): Similarly for the second column.
	(aes_encrypt): Similarly for the third and fourth column.
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	(aes_encrypt): Deleted xchgl instruction in final round, by
	reordering the second and fourth round.

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	* x86/machine.m4 (AES_LAST_ROUND): New macro.

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	* x86/aes-encrypt.asm (aes_encrypt): Move code here...
	* x86/aes.asm: ...from here.	

	* x86/aes.asm: Use addl and subl, not add and sub. Replaced
	references to dtbl1-4 with references to _aes_encrypt_table.

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	* configure.ac (asm_path): Enable x86 assembler.

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	* x86/aes.asm (aes_decrypt): Adapted to the current interface.
	Notably, the order of the subkeys was reversed. Single block
	encrypt/decrypt works now.
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	(aes_encrypt, aes_decrypt): Added an outer loop, so that we can
	encrypt more than one block at a time.
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2002-05-07  Niels Mller  <niels@s3.kth.se>

	* configure.ac: Generate config.m4.

	* x86/aes.asm: Use C for comments, include the tables using
	include_src, and commented out the key setup functions.
	Fixed the processing of the first handling of the round function.
	Now, encryption of a single block works! Multiple blocks, and
	decryption, is still broken.

	* x86/machine.m4: New file (empty).

	* x86/aes-encrypt.asm: New file, empty for now.

	* Makefile.am (%.asm): Added asm.m4, machine.m4 and config.m4 to
	the m4 command line.
	(libnettle_a_SOURCES): Added aes-encrypt-table.c.

	* sparc/aes.asm: No need to include asm.m4, that is taken care of
	by the Makefile. 

	* config.m4.in: New file, configuration for asm.m4.

	* asm.m4 (C, include_src): New macros.

	* aes-encrypt-table.c: New file, table moved out from
	aes-encrypt.c. 

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2002-05-06  Niels Mller  <niels@s3.kth.se>

	* configure.ac (CFLAGS): Don't enable -Waggregate-return.

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2002-05-05  Niels Mller  <nisse@lysator.liu.se>

	* configure.ac: Pass no arguments to AM_INIT_AUTOMAKE.

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2002-05-05  Niels Mller  <nisse@cuckoo.hack.org>

	* configure.ac: Update for automake-1.6.

	* configure.ac: Renamed file, used to be configure.in.
	
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2002-03-20  Niels Mller  <nisse@cuckoo.hack.org>

	* testsuite/run-tests (test_program): Added missing single quote.

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2002-03-20  Niels Mller  <nisse@lysator.liu.se>

	* testsuite/run-tests (test_program): Test the exit status of the
	right process.

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2002-03-19  Pontus Skld  <pont@it.uu.se>

	* testsuite/run-tests: Removed /bin/bashisms to use with /bin/sh. 

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2002-03-18  Niels Mller  <nisse@cuckoo.hack.org>

	* rsa-keygen.c (rsa_generate_keypair): Output a newline after a
	non-empty line of 'e':s (bad e was chosen, try again).

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2002-03-16  Niels Mller  <nisse@cuckoo.hack.org>

	* configure.in (asm_path): AC_CONFIG_LINKS adds $srcdir
	automatically. 

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2002-03-14  Niels Mller  <nisse@cuckoo.hack.org>
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	* sparc/aes.asm, x86/aes.asm: Added copyright notice.

	* Makefile.am (libnettle_a_SOURCES): Added aes-internal.h.
	(EXTRA_DIST): Added assembler files.

	* configure.in (asm_path): Use $srcdir when looking for the files. 
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	* configure.in (asm_path): For now, disable x86 assembler code. 
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	Bumped version to 1.6.
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2002-02-25  Niels Mller  <nisse@cuckoo.hack.org>

	* sparc/aes.asm (_aes_crypt): Moved increment of src into the
	source_loop. Also fixed stop condition, the loop was run 5 times,
	not 4, as it should.
	(_aes_crypt): Use src directly when accessing the source data,
	don't use %o5.
	(_aes_crypt): Renamed variables in source_loop.
	(_aes_crypt): Changed stop condition in source_loop to not depend
	on i. Finally reduced the source_loop to 16 instructions. Also
	increased the alignment of the code to 16.
	(_aes_crypt): In final_loop, use preshifted indices.
	(_aes_crypt): In final_loop, construct the result in t0. Use t0-t3
	for intermediate values.
	(_aes_crypt): In final_loop, use the register idx.
	(_aes_crypt): In final_loop, keep i multiplied by 4. Use key to
	get to the current roundkey.
	(_aes_crypt): In final_loop, use i for indexing.
	(_aes_crypt): Update dst in the output loop. This yields a delay
	slot that isn't filled yet.
	(_aes_crypt): Decrement round when looping, saving yet some
	instructions.
	(_aes_crypt): Reformatted code as blocks of four instructions
	each.
	(_aes_crypt): Copy the addresses of the indexing tables into
	registers at the start. No more need for the idx register.
	(_aes_crypt): Deleted idx register.
	(_aes_crypt): Some peep hole optimizations, duplicating some
	instructions to fill nop:s, and put branch instructions on even
	word addresses.

2002-02-22  Niels Mller  <nisse@cuckoo.hack.org>

	* sparc/aes.asm (_aes_crypt): Moved some more additions out of the
	inner loop, using additional registers.
	(_aes_crypt): Deleted one more addition from the inner loop, by
	using the subkey pointer.

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2002-02-19  Niels Mller  <nisse@cuckoo.hack.org>

	* configure.in (asm_path): Renamed "path" to "asm_path". Also look
	for a machine.m4.

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2002-02-16  Niels Mller  <nisse@cuckoo.hack.org>

	* sparc/aes.asm: Use that IDX2(j) == j ^ 2

	* Makefile.am (libnettle_a_SOURCES): Reordered aes-decrypt.c and
	aes-encrypt.c. For some strange reason it makes the benchmark go
	faster... 

	* sparc/aes.asm (_aes_crypt): Use double-buffering, and no
	separate loop for adding the round key.
	(round): Keep round index muliplied by 16, so it can be used
	directly for indexing the subkeys.
	(_aes_crypt): In the final loop, use ctx+round to access the
	subkeys, no need for an extra register.

2002-02-15  Niels Mller  <nisse@cuckoo.hack.org>

	* sparc/aes.asm (_aes_crypt): Renaming variables, allocating
	locals starting from %l0.
	(_aes_crypt): Consistently use %l4, aka i, as the variable for the
	innermost loops.
	(_aes_crypt): Moved reading of ctx->nrounds out of the loop.
	(_aes_crypt): In final_loop, deleted a redundant mov, and use i as
	loop variable.
	(_aes_crypt): Started renumbering registers in the inner loop. The
	computation for the table[j] sub-expression should be kept in
	register %o[j].
	(_aes_crypt): Renamed more variables in the inner loop. Now the
	primary variables are t0, t1, t2, t3.

	* sparc/aes.asm (_aes_crypt): Swapped register %i0 and %o5, %i1
	and %o0, %i2 and %o4, %i3 and %o3, %i4 and %o2.
	(_aes_crypt): wtxt was stored in both %l1 and %l2 for the entire
	function. Freed %l2 for other uses.
	(_aes_crypt): Likewise for tmp, freeing register %o1.	

	* sparc/machine.m4: New file, for sparc-specific macros.

	* sparc/aes.asm (_aes_crypt): Hacked the source_loop, to get rid
	of yet another redundant loop variable, and one instruction.
	(_aes_crypt): Strength reduce loop variable in the
	inner loop, getting rid of one register.
	(_aes_crypt): Use pre-shifted indices (aes_table.idx_shift), to
	avoid some shifts in the inner loop.
	(_aes_crypt): Don't check for nrounds==0 at the start of the loop.

	* asm.m4: Define and use structure-defining macros.

	* Makefile.am (%.asm): Use a GNU pattern rule, to make %.o depend
	on both %.asm and asm.m4.

	* aes-internal.h (struct aes_table): New subtable idx_shift.
	Updated tables in aes_encrypt.c and aes_decrypt.c.

	* asm.m4: Use eval to compute values.

	* sparc/aes.asm (_aes_crypt): Deleted commented out old version of
	the code.

	* asm.m4: Added constants for individual rows of the aes table.

	* aes.c (IDX0, IDX1, IDX2, IDX3): New macros, encapsualting the
	structure of the idx table.

	* asm.m4: Define various aes struct offsets.

	* testsuite/cbc-test.c (test_cbc_bulk): Use aes_set_encrypt_key
	and aes_set_decrypt_key.

	* sparc/aes.asm (_aes_crypt): Use symbolic names for the fucntion
	arguments. 

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2002-02-14  Niels Mller  <nisse@cuckoo.hack.org>

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	* sparc/aes.asm: Copied gcc assembler code for _aes_crypt.

	* aesdata.c: New program for generating AES-related tables.

	* testsuite/testutils.c (print_hex): New function (moved from
	yarrow-test.c). 

	* testsuite/rsa-keygen-test.c (progress): Declare the ctx argument
	as UNUSED.

	* testsuite/cbc-test.c (test_cbc_bulk): New function, testing CBC
	with larger blocks.

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	* yarrow256.c: Replaced uses of aes_set_key with
	aes_set_encrypt_key. 

	* nettle-meta.h (_NETTLE_CIPHER_SEP): New macro, useful for
	algorithms with separate encyption and decryption key setup. 

	* aes-internal.h (struct aes_table): New structure, including all
	constant tables needed by the unified encryption or decryption
	function _aes_crypt.

	* aes.c (_aes_crypt): New function, which unifies encryption and
	decryption.

	AES key setup now uses two separate functions for setting
	encryption and decryption keys. Applications that don't do
	decryption need no inverted subkeys and no code to generate them.
	Similarly, the tables (about 4K each for encryption and
	decryption), are put into separate files.

	* aes.h (struct aes_ctx): Deleted space for inverse subkeys. For
	decryption, the inverse subkeys replace the normal subkeys, and
	they are stored _in the order they are used_. 

	* aes-set-key.c (aes_set_key): Deleted file, code moved...
	* aes-set-decrypt-key.c, aes-set-encrypt-key.c: New files,
	separated normal and inverse key setup.

	* aes-tables.c: Deleted, tables moved elsewhere...
	* aes-encrypt.c, aes-decrypt.c: New files; moved encryption and
	decryption funktions, and needed tables, into separate files.

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2002-02-13  Niels Mller  <nisse@cuckoo.hack.org>

	* aes.c (aes_encrypt): Don't unroll the innerloop.
	(aes_encrypt): Don't unroll the loop for the final round.
	(aes_decrypt): Likewise, no loop unrolling.

	* aes-set-key.c (aes_set_key): Reversed the order of the inverted
	subkeys. They are now stored in the same order as they are used.

	* aes-tables.c (itable): New bigger table, generated by aesdata.c. 

	* aes.c (aes_decrypt): Rewrote to use the bigger tables.

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2002-02-12  Niels Mller  <nisse@cuckoo.hack.org>

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	* aes.c (aes_encrypt): Interleave computation and output in the
	final round.

	* aes-internal.h (AES_SMALL): New macro.

	* aes.c (aes_encrypt): Optionally use smaller rotating inner loop.

	* aes-tables.c (dtbl): Replaced with table generated by aesdata.

	* aes.c (aes_encrypt): Rewrite, now uses larger tables in order to
	avoid rotates.

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	* sparc/aes.asm (aes_encrypt): Strength reduced on j, getting rid
	of one register and one instruction in the inner loop.

	* sparc/aes.asm (idx, aes_encrypt): Multiplied tabled values by 4,
	making it possible to get rid of some shifts in the inner loop.

	* configure.in: Fixed spelling of --enable-assembler. Commented
	out debug echo:s.

	* asm.m4: New file. For now, only doing changequote and changecom.  

	* sparc/aes.asm (aes_encrypt): Added comments.
	(aes_encrypt): Cut off redundant instruction per block, also
	saving one redundant register pointing to idx.
	(idx_row): New macro. Include asm.m4.

2002-02-11  Niels Mller  <nisse@cuckoo.hack.org>

	* sparc/aes.asm (key_addition_8to32): Cleaned up.
	Deleted gcc-generated debugging information.

	* sparc/aes.asm (key_addition32): First attempt at optimization.
	Made it slower ;-)

	* sparc/aes.asm (key_addition32): Unrolled loop, gained 4%
	speed, payed four instructions compared to gcc
	generated code. 
	
	* Makefile.am (.asm.o): New rule for assembling via m4.
	(libnettle_a_SOURCES): Added new rsa and aes files.

	* configure.in: New command line option --enable-assembler.
	Selects assembler code depending on the host system.

	* rsa-decrypt.c, rsa-encrypt.c: New files for rsa pkcs#1
	encryption. 

	* aes-set-key.c, aes-tables.c: New files, split off from aes.c.
	Tables are now not static, but use a _aes_ prefix on their names. 

	* aes-internal.h: New file.

	* cast128-meta.c (_NETTLE_CIPHER_FIX): Use _NETTLE_CIPHER_FIX. 

	* cbc.c (cbc_decrypt_internal): New function, doing the real CBC
	procesing and requiring that src != dst.
	(cbc_decrypt): Use cbc_decrypt_internal. If src == dst, use a
	buffer of limited size to copy the ciphertext.

	* nettle-internal.c (nettle_blowfish128): Fixed definition, with
	key size in bits.

	* nettle-meta.h (_NETTLE_CIPHER_FIX): New macro, suitable for
	ciphers with a fixed key size.

	* examples/nettle-benchmark.c (display): New function for
	displaying the results, including MB/s figures.

	* sparc/aes.asm: New file. Not yet tuned in any way (it's just the
	code generated by gcc).

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2002-02-11  Niels Mller  <nisse@lysator.liu.se>

	* x86/aes.asm, x86/aes_tables.asm: New assembler implementation by
	Rafael Sevilla. 

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2002-02-06  Niels Mller  <nisse@cuckoo.hack.org>

	Applied patch from Dan Egnor improving the base64 code.
	* base64.h (BASE64_ENCODE_LENGTH): New macro.
	(struct base64_ctx): New context struct, for decoding.
	(BASE64_DECODE_LENGTH): New macro.
	* base64.c (base64_decode_init): New function.
	(base64_decode_update): New function, replacing base64_decode.
	Takes a struct base64_ctx argument.
	* nettle-meta.h: Updated nettle_armor, and related typedefs and
	macros. 
	* testsuite/testutils.c (test_armor): Updated.
	* configure.in: Use AC_PREREQ(2.50).

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2002-02-01  Niels Mller  <nisse@cuckoo.hack.org>

	* Released nettle-1.5.

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2002-01-31  Niels Mller  <nisse@cuckoo.hack.org>

	* acinclude.m4: Commented out gmp-related macros, they're probably
	not needed anymore.

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2002-01-31  Niels Mller  <nisse@lysator.liu.se>

	* configure.in: Added command line options --with-lib-path and
	--with-include-path. Use the RPATH-macros to get correct flags for
	linking the test programs with gmp.

	* acinclude.m4: New file.

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2002-01-31  Niels Mller  <nisse@cuckoo.hack.org>

	* nettle.texinfo (Randomness): New subsection on Yarrow.

2002-01-30  Niels Mller  <nisse@cuckoo.hack.org>

	* nettle.texinfo (Randomness): New chapter.
	Spell checking and ispell configuration.

	* md5.c: Added reference to RFC 1321.

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2002-01-24  Niels Mller  <nisse@cuckoo.hack.org>

	* nettle.texinfo (Public-key algorithms): Minor fixes.

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2002-01-22  Niels Mller  <nisse@cuckoo.hack.org>

	* nettle.texinfo (Nettle soup): New chapter.
	(Hash functions): New subsection on struct nettle_hash. 
	(Hash functions): New subsection on struct nettle_cipher.
	(Keyed hash functions): New section, describing MAC:s and HMAC.
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	(Public-key algorithms): New chapter.
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	* testsuite/testutils.c (test_armor): New function.

	* testsuite/base64-test.c: New testcase.

	* testsuite/Makefile.am (TS_PROGS): Added base64-test.

	* nettle-meta.h (struct nettle_armor): New struct.

	* configure.in: Bumped version to 1.5.

	* Makefile.am (libnettle_a_SOURCES): Added base64 files, and some
	missing header files.

	* base64.c, base64.h, base64-meta.c: New files, hacked by Dan
	Egnor. 

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2002-01-16  Niels Mller  <nisse@cuckoo.hack.org>

	* testsuite/yarrow-test.c: Deleted ran_array code, use
	knuth-lfib.h instead.

	* testsuite/testutils.c (test_rsa_md5, test_rsa_sha1): Moved
	functions here...
	* testsuite/rsa-test.c: ...from here.

	* testsuite/rsa-keygen-test.c: New file.

	* testsuite/knuth-lfib-test.c: New file.

	* Makefile.am (libnettle_a_SOURCES): Added knuth-lfib.c and
	rsa-keygen.c.

	* rsa-keygen.c: New file.

	* rsa.h (RSA_MINIMUM_N_OCTETS): New constant.
	(RSA_MINIMUM_N_BITS): New constant.
	(nettle_random_func, nettle_progress_func): New typedefs. Perhaps
	they don't really belong in this file.
	(rsa_generate_keypair): Added progress-callback argument.

	* macros.h (READ_UINT24, WRITE_UINT24, READ_UINT16, WRITE_UINT16):
	New macros.

	* knuth-lfib.c, knuth-lfib.h: New files, implementing a
	non-cryptographic prng.

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2002-01-15  Niels Mller  <nisse@cuckoo.hack.org>

	* hmac-sha1.c: New file.

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	* configure.in: Bumped version to 1.1.

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	* testsuite/hmac-test.c (test_main): Added hmac-sha1 test cases.

	* rsa.c (rsa_init_private_key, rsa_clear_private_key): Handle d. 

	* rsa.h (struct rsa_private_key): Reintroduced d attribute, to be
	used only for key generation output.
	(rsa_generate_keypair): Wrote a prototype.

	* Makefile.am (libnettle_a_SOURCES): Added hmac-sha1.c and
	nettle-internal.h. 

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	* des.c: Use static const for all tables.
	(des_set_key): Use a new const * variable for the parity
	procesing, for constness reasons.

	* list-obj-sizes.awk: New file.

	* nettle-internal.c, nettle-internal.h: New files.

	* testsuite/Makefile.am (TS_PROGS): Added hmac-test. Deleted old
	m4-stuff. 

	* testsuite/testutils.h (LDATA): Moved this macro here,...
	* testsuite/rsa-test.c: ... from here.

	* testsuite/hmac-test.c: New file.

	* hmac.h: General cleanup. Added declarations of hmac-md5,
	hmac-sha1 and hmac-sha256.

	* hmac.c: Bug fixes.

	* hmac-md5.c: First working version.

	* Makefile.am (libnettle_a_SOURCES): Added hmac.c and hmac-md5.c.
	(libnettleinclude_HEADERS): Added hmac.h.

	* testsuite/rsa-test.c: Also test a 777-bit key.

	* rsa.c (rsa_check_size): Changed argument to an mpz_t. Updated
	callers. 
	(rsa_prepare_private_key): Compute the size of the key by
	computing n = p * q.

	* rsa-compat.c: Adapted to new private key struct.
	* rsa_md5.c: Likesize.
	* rsa_sha1.c: Likesize.

	* rsa.c (rsa_check_size): New function, for computing and checking
	the size of the modulo in octets.
	(rsa_prepare_public_key): Usa rsa_check_size.
	(rsa_init_private_key): Removed code handling n, e and d.
	(rsa_clear_private_key): Likewise.
	(rsa_compute_root): Always use CRT.

	* rsa.h (struct rsa_private_key): Deleted public key and d from
	the struct, as they are not needed. Added size attribute.

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2002-01-12  Niels Mller  <nisse@cuckoo.hack.org>

	* Makefile.am: Added *-meta files.

	* rsa.c (rsa_init_public_key): New function.
	(rsa_clear_public_key): Likewise.
	(rsa_init_private_key): Likewise.
	(rsa_clear_private_key): Likewise.

	* aes-meta.c: New file.
	* arcfour-meta.c: New file.
	* cast128-meta.c: New file.
	* serpent-meta.c: New file.
	* twofish-meta.c: New file.

	* examples/nettle-benchmark.c: Use the interface in nettle-meta.h. 

2002-01-11  Niels Mller  <nisse@cuckoo.hack.org>

	Don't use m4 for generating test programs, it's way overkill. Use
	the C preprocessor instead.
	* testsuite/*-test.c: New file.

	* hmac.c, hmac.h, hmac-md5.c: New files.

	Defined structures describing the algoriths. Useful for code that
	wants to treat an algorithm as a black box.
	* nettle-meta.h, md5-meta.c, sha1-meta.c, sha256-meta.c: New
	files. 

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2002-01-09  Niels Mller  <nisse@cuckoo.hack.org>

	* rsa-compat.c: Updated for new md5 and rsa conventions.

	* rsa_md5.c: Represent a signature as an mpz_t, not a string.
	Updated calls of md5 functions.
	* rsa_sha1.c: Likewise.

	* rsa.c (rsa_prepare_public_key): Renamed function, was
	rsa_init_public_key. 
	(rsa_prepare_private_key): Renamed function, was
	rsa_init_private_key. 

	* nettle.texinfo (Hash functions): Update for the changed
	interface without *_final. Document sha256.

	* testsuite/md5-test.m4, testsuite/sha1-test.m4,
	testsuite/sha256-test.m4, testsuite/yarrow-test.c: Updated for new
	hash function interface.

	* yarrow256.c: Removed calls of sha256_final and and some calls of
	sha256_init.

	* md5-compat.c (MD5Final): Call only md5_digest.

	* md5.c (md5_digest): Call md5_final and md5_init.
	(md5_final): Declared static.
	sha1.c, sha256.c: Analogous changes.
	
	* bignum.c (nettle_mpz_get_str_256): Declare the input argument
	const. 

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2001-12-14  Niels Mller  <nisse@cuckoo.hack.org>

	* Makefile.am (EXTRA_DIST): Added $(des_headers). Changed
	dependencies for $(des_headers) to depend only on the source file
	desdata.c, not on the executable.	

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2001-12-12  Niels Mller  <nisse@cuckoo.hack.org>

	* testsuite/yarrow-test.c (main): Updated testcase to match fixed
	generator. Send verbose output to stdout, not stderr.

	* yarrow256.c (yarrow_slow_reseed): Bug fix, update the fast pool
	with the digest of the slow pool.
	(yarrow256_init): Initialize seed_file and counter to zero, to
	ease debugging. 

2001-12-07  Niels Mller  <nisse@cuckoo.hack.org>

	* bignum.c (nettle_mpz_get_str_256): Fixed handling of leading
	zeroes. 

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2001-12-05  Niels Mller  <nisse@cuckoo.hack.org>

	* testsuite/yarrow-test.c (main): Updated test to match the fixed
	key event estimator.

	* yarrow_key_event.c (yarrow_key_event_estimate): Fixed handling
	of timing info. 

	* nettle.texinfo (Copyright): Say that under certain
	circumstances, Nettle can be used as if under the LGPL.

	* README: Added a paragraph on copyright.

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2001-11-15  Niels Mller  <nisse@cuckoo.hack.org>

	* yarrow256.c (yarrow256_force_reseed): New function.

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2001-11-14  Niels Mller  <nisse@ehand.com>

	* testsuite/yarrow-test.c (main): Use yarrow256_is_seeded.

	* yarrow256.c (yarrow256_needed_sources): New function.
	(yarrow256_is_seeded): New function.
	(yarrow256_update): Use yarrow256_needed_sources. 

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2001-11-14  Niels Mller  <nisse@cuckoo.hack.org>

	* testsuite/yarrow-test.out: Updated, to match the seed-file aware
	generator. 

	* testsuite/yarrow-test.c: Updated expected_output. Check the seed
	file contents at the end.

	* yarrow256.c (yarrow256_seed): New function.
	(yarrow_fast_reseed): Create new seed file contents.

2001-11-13  Niels Mller  <nisse@cuckoo.hack.org>

	* yarrow.h: Deleted yarrow160 declarations.

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2001-11-02  Niels Mller  <nisse@ehand.com>

	* yarrow256.c (yarrow256_init): Fixed order of code and
	declarations. 

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2001-10-30  Niels Mller  <nisse@ehand.com>

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	* rsa-compat.h: Added real prototypes and declarations.

	* Makefile.am (libnettle_a_SOURCES): Added rsa-compat.h and
	rsa-compat.c. 

	* rsa-compat.c: New file, implementing RSA ref signature and
	verification functions.

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	* configure.in: Check for libgmp. Deleted tests for SIZEOF_INT and
	friends. 

	* rsa_sha1.c: New file, PKCS#1 rsa-sha1 signatures. 
	* rsa_md5.c: New file, PKCS#1 rsa-md5 signatures.

	* rsa.c: New file with general rsa functions.

	* Makefile.am (libnettle_a_SOURCES): Added rsa and bignum files.

	* bignum.c, bignum.h: New file, with base256 functions missing in
	gmp. 

	* testsuite/Makefile.am: Added bignum-test.

	* testsuite/run-tests (test_program): Check the xit code more
	carefully, and treat 77 as skip. This convention was borrowed from
	autotest. 

	* testsuite/macros.m4: New macro SKIP which exits with code 77.

	* testsuite/bignum-test.m4: New file.

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2001-10-15  Niels Mller  <nisse@ehand.com>

	* testsuite/Makefile.am (EXTRA_DIST): Include rfc1750.txt in the
	distribution.

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2001-10-14  Niels Mller  <nisse@cuckoo.hack.org>

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	* testsuite/des-test.m4: Added testcase taken from applied
	cryptography. 

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	* testsuite/yarrow-test.c: Use sha256 instead of sha1 for checking
	input and output. Updated the expected values.

	* yarrow256.c (YARROW_RESEED_ITERATIONS): New constant.
	(yarrow_iterate): New function.
	(yarrow_fast_reseed): Call yarrow_iterate.

	* testsuite/yarrow-test.c: Added verbose flag, disabled by
	default. 

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2001-10-12  Niels Mller  <nisse@ehand.com>

	* examples/nettle-benchmark.c: Added more ciphers.

	* Makefile.am (SUBDIRS): Added the examples subdir.

	* configure.in: Output examples/Makefile.

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2001-10-12  Niels Mller  <nisse@cuckoo.hack.org>

	* examples/nettle-benchmark.c: New benchmarking program. 

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2001-10-10  Niels Mller  <nisse@ehand.com>

	* testsuite/yarrow-test.c: Open rfc1750.txt. Hash input and
	output, and compare to expected values.

	* testsuite/Makefile.am (CFLAGS): Don't disable optimization.
	(run-tests): Set srcdir in the environment when running run-tests. 

	* testsuite/rfc1750.txt: Added this rfc as test input for yarrow. 

	* yarrow_key_event.c (yarrow_key_event_estimate): Check if
	previous is zero.
	(yarrow_key_event_init): Initialize previous to zero.

	* yarrow256.c: Added debug some output.

	* testsuite/yarrow-test.c (main): Better output of entropy
	estimates at the end. 

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2001-10-09  Niels Mller  <nisse@ehand.com>

	* testsuite/Makefile.am (TS_PROGS): Added yarrow-test.

	* testsuite/yarrow-test.c: New file.

	* yarrow256.c (yarrow256_init): Initialize the sources. 
	(yarrow256_random): Fixed loop condition.

	* yarrow.h (YARROW_KEY_EVENT_BUFFER): New constant.

	* yarrow_key_event.c: New file.

	* Makefile.am (libnettle_a_SOURCES): Added yarrow_key_event.c.

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2001-10-08  Niels Mller  <nisse@cuckoo.hack.org>

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	* yarrow.h (struct yarrow_key_event_ctx): New struct.

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	* yarrow256.c (yarrow_fast_reseed): Generate two block of output
	using the old key and feed into the pool.

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	* yarrow.h (struct yarrow256_ctx): Deleted buffer, index and
	block_count. 

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	* yarrow256.c (yarrow_fast_reseed): New function.
	(yarrow_slow_reseed): New function.
	(yarrow256_update): Check seed/reseed thresholds.
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	(yarrow_gate): New function, extracted from
	yarrow_generate_block_with_gate which was deleted.
	(yarrow_generate_block_with_gate): Deleted function.
	(yarrow256_random): Don't buffer any output, instead gate after
	each request.
	(YARROW_GATE_THRESHOLD): Deleted constant.
	
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2001-10-07  Niels Mller  <nisse@cuckoo.hack.org>

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	* Makefile.am: Added yarrow files.

	* yarrow256.c: New file, implementing Yarrow. Work in progress. 

	* sha256.c: New file, implementing SHA-256.

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	* testsuite/Makefile.am (CFLAGS): Added sha256-test.

	* testsuite/sha256-test.m4: New testcases for SHA-256.

	* shadata.c: New file, for generating SHA-256 constants.

	* sha.h: Renamed sha1.h to sha.h, and added declarations for
	SHA-256. 

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2001-10-05  Niels Mller  <nisse@ehand.com>

	* testsuite/aes-test.m4: Added a comment with NIST test vectors.

2001-10-04  Niels Mller  <nisse@ehand.com>

	* rsa.h, rsa-compat.h, yarrow.h: New files. 

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2001-09-25  Niels Mller  <nisse@cuckoo.hack.org>

	* Released version 1.0.

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2001-09-25  Niels Mller  <nisse@ehand.com>

	* sha1.c: Include stdlib.h, for abort.

	* md5.c: Include string.h, for memcpy.

	* testsuite/Makefile.am (M4_FILES): New variable. Explicitly list
	those C source files that should be generated by m4.

	* configure.in: Changed package name from "libnettle" to "nettle".

	* Makefile.am (EXTRA_DIST): Added .bootstrap.

	* AUTHORS: Added a reference to the manual.

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2001-09-25  Niels Mller  <nisse@lysator.liu.se>

	* des-compat.c (des_cbc_cksum): Bug fix, local variable was
	declared in the middle of a block.

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2001-09-19  Niels Mller  <nisse@cuckoo.hack.org>

	* nettle.texinfo (Compatibility functions): New section,
	mentioning md5-compat.h and des-compat.h.

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2001-09-18  Niels Mller  <nisse@ehand.com>

	* index.html: New file.

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2001-09-16  Niels Mller  <nisse@cuckoo.hack.org>

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	* nettle.texinfo: Added description of des3. Minor fixes.

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	* testsuite/des-compat-test.c (cbc_data): Shorten to 32 bytes (4
	blocks), the last block of zeroes wasn't used anyway.

	* des-compat.c (des_compat_des3_decrypt): Decrypt in the right
	order. 
	(des_ncbc_encrypt): Bug fixed.
	(des_cbc_encrypt): Rewritten as a wrapper around des_ncbc_encrypt.

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2001-09-14  Niels Mller  <nisse@ehand.com>

	* testsuite/des-compat-test.c: New file, copied from libdes
	(freeswan). All implemented functions but des_cbc_cksum seems to
	work now.

	* testsuite/Makefile.am (TS_PROGS): Added des-compat-test.

	* des-compat.c: Added libdes typedef:s. Had to remove all use of
	const in the process.
	(des_check_key): New global variable, checked by des_set_key.

	* des.c (des_set_key): Go on and expand the key even if it is
	weak.

	* des-compat.c (des_cbc_cksum): Implemented.
	(des_key_sched): Fixed return values.

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2001-09-11  Niels Mller  <nisse@cuckoo.hack.org>

	* Makefile.am: Added des-compat.c and des-compat.h

	* des-compat.c: Bugfixes, more functions implemented.

	* des-compat.h: Define DES_ENCRYPT and DES_DECRYPT. Bugfixes.

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2001-09-10  Niels Mller  <nisse@ehand.com>

	* nettle.texinfo (Copyright): Added copyright information for
	serpent.
	(Miscellaneous functions): Started writing documentation on the CBC
	functions.
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	(Cipher Block Chaining): This section more or less complete now.
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2001-09-09  Niels Mller  <nisse@cuckoo.hack.org>

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	* testsuite/cbc-test.m4: Record intermediate values in a comment. 
	* testsuite/des3-test.m4: Likewise.

	* testsuite/aes-test.m4: Added test case that appeared broken in
	the cbc test.

	* cbc.c (cbc_encrypt): Bug fix, encrypt block *after* XOR:ing the
	iv. 

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	* Makefile.am (libnettleinclude_HEADERS): Added cbc.h. Deleted
	des3.h. 
	(libnettle_a_SOURCES): Added des3.c.

	* testsuite/Makefile.am (TS_PROGS): Added des3-test and cbc-test.

	* testsuite/cbc-test.m4: New testcase.

	* testsuite/des3-test.m4: New testcase.

	* cbc.h (CBC_CTX): New macro.
	(CBC_ENCRYPT): New macro.
	(CBC_DECRYPT): New macro.

	* des.c (des_fix_parity): New function.

	* des3.c: New file, implementing triple des.

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2001-09-06  Niels Mller  <nisse@cuckoo.hack.org>

	* cbc.c, cbc.h: New files, for general CBC encryption.

	* des-compat.h: Added some prototypes.

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2001-09-05  Niels Mller  <nisse@ehand.com>

	* testsuite/Makefile.am (TS_PROGS): Added md5-compat-test.

	* README: Copied introduction from the manual.

	* configure.in: Bumped version to 1.0.

	* Makefile.am (libnettleinclude_HEADERS): Added missing includes.
	(libnettle_a_SOURCES): Added md5-compat.c and md5-compat.h.

	* md5-compat.c, md5-compat.h: New files, implementing an RFC
	1321-style interface.

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2001-09-02  Niels Mller  <nisse@cuckoo.hack.org>

	* twofish.c (twofish_decrypt): Fixed for();-bug in the block-loop.
	Spotted by Jean-Pierre.
	(twofish_encrypt): Likewise.

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2001-07-03  Niels Mller  <nisse@ehand.com>

	* testsuite/testutils.c: Include string.h.

	* twofish.c: Include string.h.

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2001-06-17  Niels Mller  <nisse@lysator.liu.se>

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	* Makefile.am (des_headers): Dont use $(srcdir)/-prefixes as that
	seems to break with GNU make 3.79.1.

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	* testsuite/testutils.c, testsuite/testutils.h: Use <inttypes.h>,
	not <stdint.h>.
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	Include <stdlib.h>.
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	* Use <inttypes.h>, not <stdint.h>.

	* blowfish.h (BLOWFISH_MAX_KEY_SIZE): Fixed, should be 56. 

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	* Fixed copyright notices.

	* Makefile.am (libnettle_a_SOURCES): Added desinfo.h and
	desCode.h. 
	(info_TEXINFOS): Added manual.
	(EXTRA_DIST): Added nettle.html.
	(%.html): Added rule for building nettle.html.

	* nettle.texinfo: New manual.

	* configure.in: Bumped version to 0.2.

	* testsuite/Makefile.am (TS_PROGS): Added cast128 test.

	* Added CAST128.

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	* testsuite/serpent-test.m4: Added a few rudimentary tests
	extracted from the serpent package.

	* twofish.c: Adapted to nettle. Made constant tables const.
	Deleted bytes_to_word and word_to_bytes; use LE_READ_UINT32 and
	LE_WRITE_UINT32 instead.
	(twofish_selftest): Deleted. Moved the tests to the external
	testsuite. 
	(twofish_set_key): Don't silently truncate too large keys. 

	* sha1.c (sha1_update): Use unsigned for length.

	* serpent.c (serpent_set_key): Read the key backwards. Fixed
	padding (but there are no test vectors for key_size not a multiple
	of 4).
	(serpent_encrypt): Read and write data in the strange order used
	by the reference implementation.
	(serpent_decrypt): Likewise.

	* macros.h (FOR_BLOCKS): New macro, taken from lsh.

	* blowfish.h (struct blowfish_ctx): Use a two-dimensional array
	for s.

	* blowfish.c (initial_ctx): Arrange constants into a struct, to
	simplify key setup.
	(F): Deleted all but one definitions of the F function/macro.
	Added a context argument, and use that to find the subkeys.
	(R): Added context argument, and use that to find the subkeys.
	(blowfish_set_key): Some simplification.

	(encrypt): Deleted code for non-standard number of rounds. Deleted
	a bunch of local variables. Using the context pointer for
	everything should consume less registers.
	(decrypt): Likewise.

	* Makefile.am (libnettle_a_SOURCES): Added twofish.

2001-06-16  Niels Mller  <nisse@cuckoo.hack.org>

	* testsuite/blowfish-test.m4: Fixed test.

	* Added twofish implementation.

	* blowfish.h (struct blowfish_ctx): Use the correct size for the p
	array. 

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2001-06-15  Niels Mller  <nisse@ehand.com>

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	* testsuite/blowfish-test.m4: Fixed testcase, use correct key
	length. 

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	* Makefile.am (libnettle_a_SOURCES): Added blowfish files.
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	($(des_headers)): Strip directory part when passing file name to
	desdata. 
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	* testsuite/blowfish-test.m4: Added one test, from GNUPG.

	* Created blowfish.c and blowfish.h (from GNUPG via LSH). Needs
	more work.

	* aes.h: Fixed copyright notice to not mention GNU MP. XXX: Review
	all nettle copyrights.

	* testsuite/Makefile.am (TS_PROGS): Added tests for twofish and
	blowfish.

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2001-06-13  Niels Mller  <nisse@ehand.com>

	* Makefile.am (libnettle_a_SOURCES): Added serpent files.

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	* des.c (des_encrypt, des_decrypt): Assert that the key setup was
	successful.
	
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	* testsuite/Makefile.am (TS_PROGS): Added tests for des and sha1. 

	* testsuite/sha1-test.m4: New file.

	* testsuite/des-test.m4: New file.

	* Added SHA1 files.

	* Added desCore files.
	
	* Makefile.am: Added desCore and sha1.

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2001-04-17  Niels Mller  <nisse@cuckoo.hack.org>

	* install-sh: Copied the standard install script.

	* testsuite/Makefile.am (CFLAGS): Disable optimization. Add
	$(top_srcdir) to the include path.
	(EXTRA_DIST): Added testutils.h, testutils.c and run-tests.
	(run-tests): Fixed path to run-tests.

	* Makefile.am (EXTRA_DIST): Added memxor.h.
	(libnettleinclude_HEADERS): Install headers in
	$(libnettleincludedir). 

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2001-04-13  Niels Mller  <nisse@cuckoo.hack.org>

	* Initial checkin.