ChangeLog

2012-12-09  Niels Möller  <nisse@lysator.liu.se>

	* sha3-permute.c (sha3_permute): Rewrote to do permutation in
	place. 80% speedup on x86_64, 2500 cycles.

2012-12-04  Niels Möller  <nisse@lysator.liu.se>

	* ctr.c (ctr_crypt): Fix bug reported by Tim Kosse. Don't
	increment the counter when length is zero (was broken for the
	in-place case).

	* testsuite/ctr-test.c (test_main): Added test with zero-length
	data.
	* testsuite/testutils.c (test_cipher_ctr): Check the ctr value
	after encrypt and decrypt.

2012-12-03  Niels Möller  <nisse@lysator.liu.se>

	* sha3-permute.c (sha3_permute): Optimized, to reduce number of
	passes over the data. 20% speedup on x86_64, 4700 cycles.

	* configure.ac: Added sha3-permute.asm.

	* x86_64/sha3-permute.asm: New file. 30% speedup over current C
	code, 4300 cycles.

	* nettle.texinfo (Hash functions): Split into several sections,
	separating recommended hash functions and legacy hash functions.
	Document sha3-256.

2012-12-02  Niels Möller  <nisse@lysator.liu.se>

	Split sha.h into new files sha1.h and sha2.h. Replaced all
	internal usage of sha.h in all files.
	* sha.h: Kept for compatibility, just includes both new files.
	* sha1.h: New file.
	* sha2.h: New file.
	* Makefile.in (HEADERS): Added sha1.h and sha2.h.

2012-11-28  Niels Möller  <nisse@lysator.liu.se>

	From Fredrik Thulin:
	* testsuite/pbkdf2-test.c (test_main): Add PBKDF2-HMAC-SHA512 test
	cases.

2012-11-15  Niels Möller  <nisse@lysator.liu.se>

	* sha3-permute.c (sha3_permute): Use ULL suffix on round
	constants. Avoid passing shift count 0 to ROTL64.

	* sha3.c (sha3_absorb): Fixed big-endian code. Need macros.h.

	* macros.h (LE_READ_UINT64): New macro.

2012-11-13  Niels Möller  <nisse@lysator.liu.se>

	* sha3-permute.c (sha3_permute): Micro optimizations. Partial
	unrolling. Use lookup table for the permutation. On an x86_64,
	execution time reduced from appr. 13000 cycles to appr. 6000.

	* examples/nettle-benchmark.c (TIME_CYCLES): New macro.
	(bench_sha1_compress, bench_salsa20_core): Use it.
	(bench_sha3_permute): New function.
	(main): Call bench_sha3_permute.

2012-11-12  Niels Möller  <nisse@lysator.liu.se>

	* examples/nettle-benchmark.c (main): Benchmark sha3_256.

	* sha3-permute.c: New file. Permutation function for sha3, aka
	Keccak.
	* sha3.h: New header file.
	* sha3.c: New file, absorption and padding for sha3.
	* sha3-256.c: New file.
	* sha3-256-meta.c: New file.
	* nettle-meta.h (nettle_sha3_256): Declare.
	* Makefile.in (nettle_SOURCES): Added sha3 files.
	(HEADERS): Added sha3.h.
	* testsuite/sha3.awk: New file. Script to extract test vectors.
	* testsuite/sha3-256-test.c: New file.
	* testsuite/sha3-permute-test.c: New file.
	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added
	sha3-permute-test.c and sha3-256-test.c.
	(DISTFILES): Added sha3.awk.
	* testsuite/.test-rules.make: Added sha3 targets.

	* macros.h (LE_WRITE_UINT64): New macro.
	* write-le64.c (_nettle_write_le64): New file and function.
	* nettle-write.h (_nettle_write_le64): Declare. Also deleted
	declaration of non-existent _nettle_write_be64.
	* Makefile.in (nettle_SOURCES): Added write-le64.c.

	* macros.h (ROTL64): New macro, moved from...
	* sha512-compress.c (ROTL64): ... old location, deleted.

	* serpent-internal.h [HAVE_NATIVE_64_BIT] (DROTL32): Renamed from...
	(ROTL64): ... old name.
	(DRSHIFT32): Renamed from ...
	(RSHIFT64): ... old name.
	* serpent-encrypt.c (LINEAR_TRANSFORMATION64): Updated for above
	renames.
	* serpent-decrypt.c (LINEAR_TRANSFORMATION64_INVERSE): Likewise.

2012-11-11  Niels Möller  <nisse@lysator.liu.se>

	From Nikos Mavrogiannopoulos:
	* nettle.texinfo (Hash functions): Added documentation for
	gosthash94.
	* examples/nettle-benchmark.c (main): Benchmark gosthash94.

2012-11-10  Niels Möller  <nisse@lysator.liu.se>

	* nettle.texinfo (nettle_hashes, nettle_ciphers): Use deftypevr,
	not deftypevrx. Spotted by Nikos Mavrogiannopoulos.

2012-11-08  Niels Möller  <nisse@lysator.liu.se>

	Gost hash function, ported from Aleksey Kravchenko's rhash library
	by Nikos Mavrogiannopoulos.
	* gosthash94.c: New file.
	* gosthash94.h: New file.
	* gosthash94-meta.c: New file.
	* nettle-meta.h (nettle_gosthash94): Declare.
	* Makefile.in (nettle_SOURCES): Added gosthash94.c and
	gosthash94-meta.c.
	(HEADERS): Added gosthash94.h.
	* testsuite/gosthash94-test.c: New file.
	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added
	gosthash94-test.c.

2012-10-29  Niels Möller  <nisse@lysator.liu.se>

	From Martin Storsjö:
	* configure.ac (dummy-dep-files): Avoid non-posix \|-operator in
	sed regexp.

2012-10-29  Niels Möller  <nisse@lysator.liu.se>

	* x86_64/salsa20-core-internal.asm: New file.
	* configure.ac: Added salsa20-core-internal.asm.
	* examples/nettle-benchmark.c (bench_salsa20_core): New function.

2012-10-27  Niels Möller  <nisse@lysator.liu.se>

	* testsuite/Makefile.in (TS_SOURCES, CXX_SOURCES): Include sources
	unconditionally.
	(TS_CXX): Moved @IF_CXX@ conditional here.
	(DISTFILES): Use $(SOURCES), which now includes all C source
	files. testutils.c was lost in a the 2012-09-20 change.

	* x86_64/salsa20-crypt.asm: Include x86_64/salsa20.m4.
	Make all exits go via .Lend and W64_EXIT.

	* x86_64/salsa20.m4: New file, extracted from
	x86_64/salsa20-crypt.asm.

2012-10-26  Niels Möller  <nisse@lysator.liu.se>

	* configure.ac (LIBNETTLE_LINK, LIBHOGWEED_LIBS): Add $(CFLAGS) on
	the link command line. Reported by Dennis Clarke.

2012-10-03  Niels Möller  <nisse@lysator.liu.se>

	From: Nikos Mavrogiannopoulos:
	* testsuite/testutils.c (test_hash): On failure, print the
	expected and returned hash values.

2012-09-23  Niels Möller  <nisse@lysator.liu.se>

	* Makefile.in (nettle_SOURCES): Added salsa20-core-internal.c.

	* salsa20-core-internal.c (_salsa20_core): New file and function,
	extracted from salsa20_crypt.
	* salsa20.h (_salsa20_core): Declare it.
	* salsa20-crypt.c (salsa20_crypt): Use _salsa20_core.

2012-09-21  Niels Möller  <nisse@lysator.liu.se>

	* pbkdf2.c (pbkdf2): assert that iterations > 0. Reorganized
	loops.

	* nettle.texinfo (Cipher functions): Stress that the salsa20 hash
	function is not suitable as a general hash function.

2012-09-20  Simon Josefsson  <simon@josefsson.org>

	* pbkdf2-hmac-sha1.c, pbkdf2-hmac-sha256.c: New files.
	* pbkdf2.h (pbkdf2_hmac_sha1, pbkdf2_hmac_sha256): New prototypes.
	* Makefile.in (nettle_SOURCES): Add pbkdf2-hmac-sha1.c and
	pbkdf2-hmac-sha256.c.
	* nettle.texinfo (Key derivation functions): Improve.
	* testsuite/pbkdf2-test.c (test_main): Test new functions.

2012-09-20  Niels Möller  <nisse@lysator.liu.se>

	* pbkdf2.c (pbkdf2): Reordered arguments, for consistency.
	* pbkdf2.h (PBKDF2): Analogous reordering.
	* testsuite/pbkdf2-test.c: Adapted to new argument order. Also use
	LDATA for the salt.
	* nettle.texinfo (Key derivation functions): Updated documented
	pbkdf2 prototype.

	* testsuite/Makefile.in (VALGRIND): New variable, to make valgrind
	checking easier.

	* configure.ac: New substitution IF_CXX, replacing CXX_TESTS.
	(dummy-dep-files): Handle .cxx files.

	* testsuite/Makefile.in: Use IF_CXX. Include dependency file for
	cxx-test.o.

2012-09-19  Niels Möller  <nisse@lysator.liu.se>

	From Tim Rühsen:
	* examples/rsa-encrypt.c (main): Added missing mpz_clear.
	* examples/rsa-keygen.c (main): Added missing deallocation.

	* testsuite/meta-hash-test.c (test_main): Validate
	NETTLE_MAX_HASH_DIGEST_SIZE.

	* pbkdf2.h (PBKDF2): New macro.
	* testsuite/pbkdf2-test.c: Use it.

2012-09-12  Simon Josefsson  <simon@josefsson.org>

	* NEWS: Mention addition of PBKDF2.
	* pbkdf2.c (pbkdf2): New file and function.
	* pbkdf2.h: Declare it.
	* Makefile.in (nettle_SOURCES): Add pbkdf2.c.
	(HEADERS): Add pbkdf2.h.
	* nettle.texinfo (Key derivation functions): New section.
	* testsuite/pbkdf2-test.c: New test case.
	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Add pbkdf2-test.c.
	* testsuite/.test-rules.make (pbkdf2-test): New target.

2012-09-16  Niels Möller  <nisse@lysator.liu.se>

	* testsuite/: Overhaul of testsuite, affecting almost all files.
	+ Use struct tstring for allocated strings, and deallocate before
	exit.
	+ Changed most test functions to take struct tstring as arguments.
	+ Made all test_main return on success.

	* testsuite/testutils.h (struct tstring): New struct type.
	(H2, HL, MEMEQH, SUCCESS): Deleted macros.
	(SHEX, SDATA): New macros.
	(H): Redefined to track storage.

	* testsuite/testutils.c (tstring_alloc): New function.
	(tstring_clear): New function.
	(tstring_data): New function.
	(tstring_hex): New function.
	(tstring_print_hex): New function.
	(decode_hex_length): Made static.
	(decode_hex): Made static. No return value, abort on error.
	(main): Expect test_main to return, and call tstring_clear before
	exit.
	(test_dsa_key): Added missing mpz_clear.
	(test_mac): Deleted unused function.

	* testsuite/rsa2sexp-test.c (test_main): Added missing
	nettle_buffer_clear.

	* testsuite/yarrow-test.c (open_file): Don't leak filename.
	(test_main): fclose input file properly.

	* testsuite/sexp-format-test.c (test_main): Added missing calls to
	nettle_buffer_clear and mpz_clear.

	* testsuite/serpent-test.c (tstring_hex_reverse): New function,
	replacing...
	(decode_hex_reverse): ... deleted function.
	(RHEX): New macro, replacing...
	(RH, RHL): ... deleted macros.

	* testsuite/rsa2sexp-test.c (test_main): Added missing
	nettle_buffer_clear.

	* testsuite/random-prime-test.c (test_main): Added missing
	mpz_clear.

	* realloc.c (nettle_realloc): Only call libc realloc if length >
	0, otherwise call free. Fixes a small memory leak.
	(nettle_xrealloc): Likewise.

	* run-tests (test_program): Don't quote $EMULATOR; allow it to
	expand to program and arguments (e.g., valgrind).

	* tools/pkcs1-conv.c (convert_public_key): Added missing calls to
	dsa_public_key_clear and rsa_public_key_clear.
	(main): Added missing nettle_buffer_clear.

2012-09-10  Niels Möller  <nisse@lysator.liu.se>

	* examples/eratosthenes.c (main): Explicitly deallocate storage
	before exit.

	* examples/io.c (read_file): Explicitly treat an empty file as an
	error. Rearrange loop, check for short fread return value.

	* desdata.c: Don't declare printf, include <stdio.h> instead. Also
	deleted casts of printf return value.

	From Tim Rühsen:
	* examples/nettle-benchmark.c (die): Use PRINTF_STYLE attribute.
	* pgp-encode.c (pgp_put_rsa_sha1_signature): Deleted unused variable.
	* rsa2openpgp.c (rsa_keypair_to_openpgp): Likewise.
	* examples/base16enc.c (main): Deleted useless allocations.

2012-09-07  Niels Möller  <nisse@lysator.liu.se>

	* examples/nettle-benchmark.c (die): Add NORETURN attribute. Patch
	from Tim Rühsen.
	* tools/misc.h (die, werror): Use PRINTF_STYLE and NORETURN macros
	for attributes. Patch from Tim Rühsen.

	* examples/io.h (werror): Use PRINTF_STYLE macro.

2012-08-22  Niels Möller  <nisse@lysator.liu.se>

	From Sam Thursfield <sam.thursfield@codethink.co.uk>:
	* configure.ac: Make documentation optional, to avoid requiring
	TeX. New option --disable-documentation, and Makefile substitution
	IF_DOCUMENTATION.
	* Makefile.in: Use IF_DOCUMENTATION.

2012-07-12  Niels Möller  <nisse@lysator.liu.se>

	* asm.m4 (ALIGN): Use << operator rather than **, with m4 eval.
	The latter is not supported by BSD m4.

2012-07-07  Niels Möller  <nisse@lysator.liu.se>

	Copyright headers: Updated FSF address. Patch from David Woodhouse.

	* examples/Makefile.in (BENCH_LIBS): Added -lm, needed for the
	ldexp function. Reported by Anthony G. Basile.

	* configure.ac: Changed version number to 2.6.

	* Released nettle-2.5.

2012-07-05  Niels Möller  <nisse@lysator.liu.se>

	* x86_64/salsa20-crypt.asm (salsa20_crypt): Write the 64-bit movq
	instructions as "movd", since that makes the osx assembler
	happier. Assembles to the same machine code on gnu/linux.

2012-07-03  Niels Möller  <nisse@lysator.liu.se>

	* aclocal.m4 (LSH_FUNC_ALLOCA): In the config.h boilerplate,
	include malloc.h if it exists, also when compiling with gcc.
	Needed for cross-compiling with --host=i586-mingw32msvc.

	* examples/base16dec.c: Don't #include files using <nettle/...>,
	we don't want to pick up installed versions. On windows, include
	<fcntl.h>, needed for _setmode.
	* examples/base16enc.c: Likewise.
	* examples/base64dec.c: Likewise.
	* examples/base64enc.c: Likewise

	* nettle.texinfo (Cipher functions): Document Salsa20.

2012-06-25  Niels Möller  <nisse@lysator.liu.se>

	* pkcs1.c (_pkcs1_signature_prefix): Renamed function, adding a
	leading underscore. Updated all callers.

	* bignum-next-prime.c (nettle_next_prime): Consistently use the
	type nettle_random_func * (rather then just nettle_random_func)
	when passing the function pointer as argument. Similar change for
	nettle_progress_func. Should have been done for the 2.0 release,
	but a few arguments were overlooked.
	* bignum-random-prime.c (_nettle_generate_pocklington_prime)
	(nettle_random_prime): Likewise.
	* bignum-random.c (nettle_mpz_random_size, nettle_mpz_random):
	Likewise.
	* dsa-keygen.c (dsa_generate_keypair): Likewise.
	* dsa-sha1-sign.c (dsa_sha1_sign_digest, dsa_sha1_sign): Likewise.
	* dsa-sha256-sign.c (dsa_sha256_sign_digest, dsa_sha256_sign):
	Likewise.
	* dsa-sign.c (_dsa_sign): Likewise.
	* pkcs1-encrypt.c (pkcs1_encrypt): Likewise.
	* rsa-blind.c (_rsa_blind): Likewise.
	* rsa-decrypt-tr.c (rsa_decrypt_tr): Likewise.
	* rsa-encrypt.c (rsa_encrypt): Likewise.
	* rsa-keygen.c (rsa_generate_keypair): Likewise.
	* rsa-pkcs1-sign-tr.c (rsa_pkcs1_sign_tr): Likewise.

	* cbc.c (cbc_encrypt, cbc_decrypt): Similarly, use the type
	nettle_crypt_func * rather than just nettle_crypt_func.
	* ctr.c (ctr_crypt): Likewise.
	* gcm.c (gcm_set_key): Likewise.

	* testsuite/des-compat-test.c (test_main): Disable declarations of
	disabled functions and variables, to avoid warnings. No verbose
	output unless verbose flag is set.

2012-06-09  Niels Möller  <nisse@lysator.liu.se>

	* examples/Makefile.in (SOURCES): Added base16dec.c, forgotten
	earlier.

	General pkcs1 signatures, with a "DigestInfo" input. Suggested by
	Nikos Mavrogiannopoulos.
	* Makefile.in (hogweed_SOURCES): Added pkcs1-rsa-digest.c,
	rsa-pkcs1-sign.c, rsa-pkcs1-sign-tr.c, and rsa-pkcs1-verify.c.

	* pkcs1-rsa-digest.c (pkcs1_rsa_digest_encode): New file and
	function.
	* pkcs1.h: Declare it.

	* rsa-pkcs1-verify.c (rsa_pkcs1_verify): New file and function.
	* rsa-pkcs1-sign.c (rsa_pkcs1_sign): New file and function.
	* rsa-pkcs1-sign-tr.c (rsa_pkcs1_sign_tr): New file and function,
	contributed by Nikos Mavrogiannopoulos.
	* rsa.h: Declare new functions.

	* rsa.h (_rsa_blind, _rsa_unblind): Declare functions.
	* rsa-blind.c (_rsa_blind, _rsa_unblind): Functions moved to a
	separate file, renamed and made non-static. Moved from...
	* rsa-decrypt-tr.c: ... here.

2012-06-03  Niels Möller  <nisse@lysator.liu.se>

	* testsuite/pkcs1-test.c (test_main): Include leading zero in
	expected result.

	* pkcs1.c (pkcs1_signature_prefix): Return pointer to where the
	digest should be written. Let the size input be the key size in
	octets, rather then key size - 1.
	* pkcs1-rsa-*.c: Updated for above.
	* rsa-*-sign.c, rsa-*-verify.c: Pass key->size, not key->size - 1.

2012-05-18  Niels Möller  <nisse@lysator.liu.se>

	* pkcs1-encrypt.c (pkcs1_encrypt): New file and function.
	* rsa-encrypt.c (rsa_encrypt): Use pkcs1_encrypt.

2012-05-09  Niels Möller  <nisse@lysator.liu.se>

	* rsa-decrypt-tr.c (rsa_decrypt_tr): Added missing mpz_clear,
	spotted by Nikos Mavrogiannopoulos.

2012-05-07  Niels Möller  <nisse@lysator.liu.se>

	* nettle-types.h (_STDINT_HAVE_INT_FAST32_T): Define here, to
	force nettle-stdint.h to not try to define the int_fast*_t types.
	Avoids compilation problems with gnutls on SunOS-5.8, where the
	definitions here collide with gnulib's.

2012-04-23  Niels Möller  <nisse@lysator.liu.se>

	* nettle-internal.h (NETTLE_MAX_BIGNUM_SIZE): New constant. Based
	on NETTLE_MAX_BIGNUM_BITS, rounded upwards. Replaced all uses of
	NETTLE_MAX_BIGNUM_BITS.

2012-04-19  Niels Möller  <nisse@lysator.liu.se>

	* list-obj-sizes.awk: Use decimal rather than hexadecimal output.
	(hex2int): Use local variables.

2012-04-18  Niels Möller  <nisse@lysator.liu.se>

	* x86_64/salsa20-crypt.asm: New file.

2012-04-17  Niels Möller  <nisse@lysator.liu.se>

	* testsuite/salsa20-test.c (test_salsa20_stream): Check that
	salsa20_crypt doesn't write beyond the given destination area.
	(test_salsa20): Likewise.

	* salsa20-crypt.c: Renamed file, from...
	* salsa20.c: ... old name.

	* x86_64/machine.m4 (WREG): New macro.

	* salsa20.c (salsa20_hash): Deleted function, inlined into
	salsa20_crypt.
	(salsa20_set_key, salsa20_set_iv): Moved, to...
	* salsa20-set-key.c: ...new file.

2012-04-15  Niels Möller  <nisse@lysator.liu.se>

	* testsuite/salsa20-test.c (test_salsa20_stream): New function.
	(test_main): Tests for encrypting more than one block at a time.

2012-04-14  Niels Möller  <nisse@lysator.liu.se>

	* examples/io.c (write_file): Use write_string.

	* examples/Makefile.in (base64enc): New targets. Also
	added missing io.o dependency to several other targets.
	(base64dec, base16enc, base16dec): Likewise.

	* examples/base64enc.c: New file, based on example code
	contributed by Jeronimo Pellegrini.
	* examples/base64dec.c: Likewise.
	* examples/base16enc.c: Likewise.
	* examples/base16dec.c: Likewise.

	* examples/rsa-encrypt.c (process_file): Reorganized fread loop.
	(usage): New function.
	(main): Implemented --help option.

	* examples/rsa-decrypt.c (process_file): Improved error message
	for too short input file.

	* aes-set-decrypt-key.c (gf2_log, gf2_exp): Deleted tables.
	(mult, inv_mix_column): Deleted functions.
	(mtable): New table.
	(MIX_COLUMN): New macro.
	(aes_invert_key): Use MIX_COLUMN and mtable.

	* aesdata.c (compute_mtable): New table, for the inv mix column
	operation in aes_invert_key.

2012-04-13  Niels Möller  <nisse@lysator.liu.se>

	* aes-set-encrypt-key.c (aes_set_encrypt_key): Use LE_READ_UINT32.
	Tabulate the needed "round constants".
	(xtime): Deleted function.

	* aes-internal.h (SUBBYTE): Cast to uint32_t. Use B0, ..., B3
	macros.

2012-04-09  Niels Möller  <nisse@lysator.liu.se>

	Timing resistant RSA decryption, based on RSA blinding code
	contributed by Nikos Mavrogiannopoulos.
	* rsa-decrypt-tr.c (rsa_decrypt_tr): New function.
	(rsa_blind): Helper function.
	(rsa_unblind): Helper function.
	* rsa.h: Declare rsa_decrypt_tr. Some cleanups, no longer include
	nettle-meta.h, more consistent declarations of function pointer
	arguments.
	* testsuite/rsa-encrypt-test.c (test_main): Test rsa_decrypt_tr.
	Check for writes past the end of the message area.

	* Makefile.in (hogweed_SOURCES): Added pkcs1-decrypt.c.
	* rsa-decrypt.c (rsa_decrypt): Use pkcs1_decrypt.
	* pkcs1-decrypt.c (pkcs1_decrypt): New file and function,
	extracted from rsa_decrypt.

2012-04-01  Niels Möller  <nisse@lysator.liu.se>

	* salsa20.c (LE_SWAP32): Typo fix for big-endian case.
	(QROUND): New macro.
	(salsa20_hash): Use it.

2012-03-31  Niels Möller  <nisse@lysator.liu.se>

	* salsa20.c: (salsa20_set_iv): Deleted size argument, only one
	size allowed.
	(U8TO32_LITTLE): Deleted macro. Use LE_READ_UINT32 instead, which
	avoids unaligned reads.
	(salsa20_set_key): Rearranged slightly, to avoid unnecessary
	byte-to-word conversions.

	(LE_SWAP32): Renamed macro from...
	(U32TO32_LITTLE): ... old name.
	(U32TO8_LITTLE): Deleted macro.
	(salsa20_wordtobyte): Renamed function to...
	(salsa20_hash): ... new name. Changed output argument from byte
	array to word array. Use memxor3, which brings a considerable
	performance gain.

	* nettle-internal.c (salsa20_set_key_hack): Updated salsa20_set_iv
	call.
	* testsuite/salsa20-test.c (test_salsa20): Deleted iv_length
	argument, updated all calls.

	* salsa20.h (SALSA20_BLOCK_SIZE): New constant.
	(_SALSA20_INPUT_LENGTH): New constant.
	* salsa20.c: Use these constants.

	* salsa20.c (ROTL32): Deleted macro, use the one from macros.h
	instead, with reversed order of arguments.
	(ROTATE, XOR, PLUS, PLUSONE): Deleted macros, use ROTL32 and
	builtin operators directly.

	Unification of rotation macros.
	* macros.h (ROTL32): New macro, to replace (almost) all other
	rotation macros.

	* aes-set-encrypt-key.c: Include macros.h.
	(aes_set_encrypt_key): Use ROTL32.
	* aes-internal.h (ROTBYTE, ROTRBYTE): Deleted macros.

	* camellia-internal.h (ROL32): Deleted macro.
	(ROTL128): Renamed for consistency, from...
	(ROL128): ... old name.
	* camellia-crypt-internal.c: Updated for renamed rotation macros.
	* camellia-set-encrypt-key.c: Likewise.
	* cast128.c (ROL): Deleted macro.
	(F1, F2, F3): Updated to use ROTL32 (reversed order of arguments).
	Also added proper do { ... } while (0) wrappers.

	* ripemd160-compress.c (ROL32): Deleted macro.
	(R): Updated to use ROTL32 (reversed order of arguments).

	* serpent-internal.h (ROL32): Deleted macro.
	(ROTL64): Renamed (from ROL64) and reorderd arguments, for
	consistency.
	(RSHIFT64): Reordered arguments, for consistency.
	* serpent-decrypt.c: Updated for renamed rotation macros, with
	reversed argument order.
	* serpent-encrypt.c: Likewise.
	* serpent-set-key.c: Likewise.

	* sha1-compress.c (ROTL): Deleted macro, use ROTL32 instead.

	* sha256-compress.c (ROTR): Deleted macro. Replaced by ROTL32,
	with complemented shift count.
	(SHR): Deleted macro, use plain shift operator instead.

	* sha512-compress.c (ROTR): Deleted macro, replaced by...
	(ROTL64): ...new macro, with complemented shift count
	(SHR): Deleted macro, use plain shift operator instead.
	(S0, S1, s0, s1): Updated accordingly.

2012-03-30  Niels Möller  <nisse@lysator.liu.se>

	* nettle-internal.c (nettle_salsa20): Cipher struct for
	benchmarking only. Sets a fix zero IV, and ignores block size.
	* nettle-internal.h (nettle_salsa20): Declare it.

	* examples/nettle-benchmark.c (block_cipher_p): New function.
	(time_cipher): Use block_cipher_p.
	(main): Include salsa20 in benchmark.

	* Makefile.in (soname link): Fixed logic.
	(nettle_SOURCES): Removed nettle-internal.c, so that it's not
	part of the library...
	(internal_SOURCES): ...and put it here.
	* testsuite/Makefile.in (TEST_OBJS): Added ../nettle-internal.o.
	* examples/Makefile.in (BENCH_OBJS): New variable, to simplify the
	nettle-benchmark rule. Also link with ../nettle-internal.o.

2012-03-29  Niels Möller  <nisse@lysator.liu.se>

	Implementation of Salsa20, contributed by Simon Josefsson.
	* salsa20.h: New file.
	* salsa20.c: New file.
	* Makefile.in (nettle_SOURCES): Added salsa20.c
	(HEADERS): Added salsa20.h.
	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added salsa20-test.c.
	* testsuite/salsa20-test.c: New test case.

	* Makefile.in (soname links): Adding missing space before ].

2012-03-23  Niels Möller  <nisse@lysator.liu.se>

	* arcfour.h (arcfour_stream): Deleted obsolete prototype.

2012-03-05  Niels Möller  <nisse@lysator.liu.se>

	* configure.ac (enable_shared): Build shared libraries by default.

2012-03-04  Niels Möller  <nisse@lysator.liu.se>

	* configure.ac (LIBNETTLE_MINOR): Bumped library version, to 4.4.
	(LIBHOGWEED_MINOR): And to 2.2.

2012-02-27  Niels Möller  <nisse@lysator.liu.se>

	* list-obj-sizes.awk: Recognize elf64 objects.

	* Makefile.in (.texinfo.dvi): Pass -b option to texi2dvi.

	* Makefile.in (TARGETS): Added twofishdata.
	(SOURCES): Added twofishdata.c.
	(twofishdata): New rule.

	* twofish.c (q0, q1): Made const, and reformatted to match the
	twofishdata program.

	* twofishdata.c: Resurrected old file. Used to be called
	generate_q.c, when the twofish code was contributed back in 1999.

	* nettle.texinfo: Documentation for base16 and base64 encoding.
	Text contributed by Jeronimo Pellegrini
	<pellegrini@mpcnet.com.br>, back in April 2006.

2012-02-18  Niels Möller  <nisse@lysator.liu.se>

	* run-tests, getopt.c, getopt1.c, getopt.h: These files were moved
	to the top-level in the conversion to an independent git
	repository. They used to be symlinks to lsh files, from the
	subdirectories which use them.

	* Makefile.in: Build and distribute getopt files. Distribute
	run-tests script.
	* examples/Makefile.in: Adapt to getopt files and the run-tests
	script now located in the parent directory.
	* testsuite/Makefile.in: Likewise.
	* tools/Makefile.in: Likewise.

	* index.html: Converted to xhtml (from lsh repository, change
	dated 2012-02-03). Updated git instructions.

	* nettle.texinfo: Updated charset declaration.
	* misc/plan.html: Likewise.

2012-01-17  Niels Möller  <nisse@lysator.liu.se>

	* testsuite/Makefile.in (DISTFILES): Added setup-env.

	* examples/rsa-decrypt.c (main): Use _setmode rather than setmode,
	suggested by Eli Zaretskii. Affects windows builds only.
	* examples/rsa-encrypt.c: Likewise.

	* Makefile.in ($(LIBNETTLE_FORLINK)): Always create a .lib symlink
	to the library file. Use LN_S.
	($(LIBHOGWEED_FORLINK)): Likewise.

	(install-shared-nettle): Use LN_S.
	(install-shared-hogweed): Likewise.

	* configure.ac: Use AC_PROG_LN_S.
	* config.make.in (LN_S): New substitution.

	* testsuite/setup-env: New file. Wine workaround. Can't get
	../.lib into wine's dll search path, so create additional
	symlinks.
	* testsuite/teardown-env: ...and delete them here. Also delete
	file testtmp.
	* examples/setup-env: Similar links setup here.
	* examples/teardown-env: ... and deleted.

2012-01-07  Niels Möller  <nisse@lysator.liu.se>

	* examples/Makefile.in (check): Add ../.lib to PATH, like in
	testsuite/Makefile. Needed for w*ndows. Reported by Eli Zaretskii.

2011-11-25  Niels Möller  <nisse@lysator.liu.se>

	From Martin Storsjö:
	* x86_64/machine.m4 (W64_ENTRY, W64_EXIT): New macros for
	supporting W64 ABI.
	* x86_64: Updated all assembly files to use them.

	* configure.ac (W64_ABI): New variable, set when compiling for
	W64 ABI (64-bit M$ windows).
	* config.m4.in (W64_ABI): Define, from configure substitution.

2011-11-24  Niels Möller  <nisse@lysator.liu.se>

	From Martin Storsjö:
	* examples/Makefile.in (check): Pass $(EMULATOR) and $(EXEEXT) in
	the environment of run-tests.
	* examples/rsa-encrypt-test: Use $EXEEXT and $EMULATOR.
	* examples/rsa-sign-test: Likewise.
	* examples/rsa-verify-test: Likewise.
	* examples/setup-env: Likewise.

	* testsuite/Makefile.in (check): Pass $(EXEEXT) in the environment of
	run-tests.
	* testsuite/pkcs1-conv-test: Use $EXEEXT and $EMULATOR. Ignore \r
	in rsa-sign output.

	* examples/rsa-decrypt.c (main) [WIN32]: Set stdout/stdin to
	binary mode.
	* examples/rsa-encrypt.c (main): Likewise.

2011-11-24  Niels Möller  <nisse@lysator.liu.se>

	* configure.ac (HAVE_NATIVE_64_BIT): Workaround to get it set to 1
	on w64.

	* serpent-internal.h (ROL64): Use (uint64_t) 1 rather than 1L, for
	M$ w64.
	(RSHIFT64): Likewise. Also added a missing parenthesis.

2011-11-24  Niels Möller  <nisse@lysator.liu.se>

	From Martin Storsjö:
	* testsuite/symbols-test: Use $NM, falling back to nm if undefined.
	* testsuite/Makefile.in (check): Pass $(NM) in the environment of
	run-tests.
	* config.make.in (NM): Set NM.

	* testsuite/sexp-conv-test: Use $EMULATOR when running test
	programs. Also ignore \r for output in the non-canonical output
	formats.
	* testsuite/Makefile.in (check): Pass $(EMULATOR) in the
	environment of run-tests.
	* configure.ac (EMULATOR): New substituted variable. Set to wine
	or wine64 when cross compiling for windows, otherwise empty.
	* config.make.in (EMULATOR): Set from autoconf value.

2011-11-20  Niels Möller  <nisse@lysator.liu.se>

	* x86/camellia-crypt-internal.asm: Take ALIGNOF_UINT64_T into
	account when getting the offset for the subkeys. Differs between
	w32 and other systems. w32 problem identified by Martin Storsjö.

	* config.m4.in: Define ALIGNOF_UINT64_T (from configure).

	* configure.ac: Check alignment of uint64_t, and also use AC_SUBST
	for use in config.m4.in.

2011-11-19  Niels Möller  <nisse@lysator.liu.se>

	Cygwin/mingw32 improvements contributed by Martin Storsjö:
	* Makefile.in (IMPLICIT_TARGETS): New variable for DLL link
	libraries.
	(clean-here): Delete the DLL import libraries.

	* configure.ac: Setup installation of DLL files in $bindir.
	(IF_DLL, LIBNETTLE_FILE_SRC, LIBHOGWEED_FILE_SRC): New
	substitutions.

	* config.make.in (LIBNETTLE_FILE_SRC): Substitute new autoconf
	variable.
	(LIBHOGWEED_FILE_SRC): Likewise.

	* Makefile.in (install-dll-nettle, uninstall-dll-nettle): New
	target for installing the DLL file in $bindir.
	(install-shared-nettle): Conditionally
	depend on install-dll-nettle. Use LIBNETTLE_FILE_SRC.
	(uninstall-shared-nettle): Conditionally depend on
	install-dll-nettle.
	(various hogweed targets): Analogous changes.

	* configure.ac: Unify shared lib setup for cygwin and mingw.

2011-10-31  Niels Möller  <nisse@lysator.liu.se>

	* configure.ac (LIBHOGWEED_LIBS): Typo fix for the darwin case.
	Spotted by Martin Storsjö.

2011-10-25  Niels Möller  <nisse@lysator.liu.se>

	* configure.ac (LIBHOGWEED_LIBS): cygwin fix, added
	libnettle.dll.a. Reported by Volker Zell.

2011-10-18  Niels Möller  <nisse@lysator.liu.se>

	* configure.ac: Improved setup för darwin shared libraries.
	Patch contributed by Ryan Schmidt.

2011-10-03  Niels Möller  <nisse@lysator.liu.se>

	* x86_64/memxor.asm: Implemented sse2-loop. Configured at compile
	time, and currently disabled.

	* testsuite/testutils.h (ASSERT): Write message to stderr.

	* testsuite/memxor-test.c: Use 16-byte alignment for "fully
	aligned" operands.

2011-09-03  Niels Möller  <nisse@lysator.liu.se>

	* x86/camellia-crypt-internal.asm: Use "l"-suffix on instructions
	more consistently. Reportedly, freebsd and netbsd systems with
	clang are more picky about this.

	* configure.ac: Changed version number to 2.5.

	* Released nettle-2.4.

	* configure.ac (LIBNETTLE_MINOR): Bumped library version, to 4.3.

	* gcm-aes.c: Include config.h.
	* tools/nettle-lfib-stream.c: Likewise.

	* ripemd160-compress.c: Added missing include of config.h. Needed
	for correct operation on big-endian systems.

2011-09-02  Niels Möller  <nisse@amfibolit.hack.org>

	* configure.ac: Changed version number to 2.4.

	* Released nettle-2.3.

2011-08-30  Niels Möller  <nisse@lysator.liu.se>

	* testsuite/hmac-test.c: Added tests for hmac-ripemd160.

	* hmac.h: Declare hmac-ripemd160 related functions.

	* Makefile.in (nettle_SOURCES): Added hmac-ripemd160.c.

2011-08-30  Niels Möller  <nisse@amfibolit.hack.org>

	* nettle.texinfo (Hash functions): Document ripemd-160.

	* hmac-ripemd160.c: New file.

	* hmac.h: Declare hmac-ripemd160 functions.

2011-08-29  Niels Möller  <nisse@lysator.liu.se>

	* sha256.c (sha256_update): Updated MD_UPDATE call for new
	conventions.
	(sha256_write_digest): Use MD_PAD rather than MD_FINAL, and insert
	the length manually.
	* sha512.c: Analogous changes.

	* sha1.c (COMPRESS): New macro.
	(sha1_update): Updated MD_UPDATE call for new conventions.
	(sha1_digest): Use MD_PAD rather than MD_FINAL, and insert the
	length manually.

	* ripemd160.c (ripemd160_init): Use memcpy for initializing the
	state vector.
	(COMPRESS): New macro.
	(ripemd160_update): Use MD_UPDATE.
	(ripemd160_digest): Inline ripemd160_final processing. Use MD_PAD
	and _nettle_write_le32.
	(ripemd160_final): Deleted function.

	* ripemd160.h (struct ripemd160_ctx): Use a 64-bit block count.
	Renamed digest to state.

	* md5.c (md5_init): Use memcpy for initializing the state vector.
	(COMPRESS): New macro, wrapping _nettle_md5_compress.
	(md5_update): Use MD_UPDATE.
	(md5_digest): Inline md5_final processing. Use MD_PAD and
	_nettle_write_le32.
	(md5_final): Deleted.

	* md5.h (struct md5_ctx): Renamed some fields, for consistency.

	* md4.h (struct md4_ctx): Renamed some fields, for consistency.

	* md4.c (md4_init): Use memcpy for initializing the state vector.
	(md4_update): Use MD_UPDATE.
	(md4_digest): Inline md4_final processing, using MD_PAD. Use
	_nettle_write_le32.
	(md4_block): Renamed, to...
	(md4_compress): ... new name. Take ctx pinter as argument.
	(md4_final): Deleted function.

	* md2.c (md2_update): Use MD_UPDATE.

	* macros.h (MD_UPDATE): Added incr argument. Invoke compression
	function with ctx pointer as argument, rather than ctx->state.
	(MD_FINAL): Just pad, don't store length field. Renamed to MD_PAD.
	(MD_PAD): Analogous change of compression invocations.

	* sha512.c: (COMPRESS): New macro wrapping _nettle_sha512_compress.
	(sha512_update): Use MD_UPDATE.
	(sha512_final): Deleted function.
	(sha512_write_digest): Use MD_FINAL.

	* sha256.c (COMPRESS): New macro wrapping _nettle_sha256_compress.
	(SHA256_INCR): Deleted macro.
	(sha256_update): Use MD_UPDATE.
	(sha256_final): Deleted function.
	(sha256_write_digest): New function, replacing sha256_final, and
	using MD_FINAL.
	(sha256_digest): Use sha256_write_digest.
	(sha224_digest): Likewise.

	* tools/nettle-hash.c (list_algorithms): Fixed typo in header.

	* sha1.c (SHA1_DATA_LENGTH): Deleted unused macro.
	(sha1_init): Use memcpy to initialize the state vector.
	(SHA1_INCR): Deleted macro.
	(sha1_update): Use MD_UPDATE macro, to reduce code duplication.
	(sha1_digest): Use MD_FINAL macro.
	(sha1_final): Deleted function.

	* sha.h (struct sha1_ctx): Renamed attribute digest to state.

	* macros.h (MD_UPDATE): New macro.
	(MD_FINAL): New macro.

2011-08-28  Niels Möller  <nisse@lysator.liu.se>

	* ripemd160.c (ripemd160_final): Use LE_WRITE_UINT32. Deleted byte
	swapping at the end, leaving it to ripemd160_digest.
	(ripemd160_digest): Use _nettle_write_le32.

	* Makefile.in (nettle_SOURCES): Added write-le32.c.

	* md5.c (md5_digest): Use _nettle_write_le32.

	* write-le32.c (_nettle_write_le32): New file and function.

	* ripemd160-compress.c (ROL32): Renamed macro (was "rol"). Deleted
	x86 version using inline assembly; at least gcc-4.4.5 recognizes
	shift-and-or expressions which are in fact rotations.
	(_nettle_ripemd160_compress): Use LE_READ_UINT32.

	* configure.ac (LIBNETTLE_MINOR): Bumped library version, to 4.2.

	* testsuite/meta-hash-test.c: Updated for the addition of
	ripemd-160.

	* testsuite/.test-rules.make: Added rule for ripemd160-test.

	* examples/nettle-benchmark.c (main): Benchmark ripemd-160.

2011-08-28  Niels Möller  <nisse@lysator.liu.se>

	RIPEMD-160 hash function. Ported from libgcrypt by Andres Mejia.
	* testsuite/ripemd160-test.c: New file.