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

	* Makefile.in (soname link): Fixed logic.

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

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	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.

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

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

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

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

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

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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.

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

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

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

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	* 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.

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

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

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	* 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.

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	* index.html: Converted to xhtml (from lsh repository, change
	dated 2012-02-03). Updated git instructions.
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	* nettle.texinfo: Updated charset declaration.
	* misc/plan.html: Likewise.

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2012-01-17  Niels Möller  <nisse@lysator.liu.se>
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	* testsuite/Makefile.in (DISTFILES): Added setup-env.

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	* 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.

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

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2012-01-07  Niels Möller  <nisse@lysator.liu.se>
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	* examples/Makefile.in (check): Add ../.lib to PATH, like in
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	testsuite/Makefile. Needed for w*ndows. Reported by Eli Zaretskii.

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2011-11-25  Niels Möller  <nisse@lysator.liu.se>
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	From Martin Storsjö:
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	* x86_64/machine.m4 (W64_ENTRY, W64_EXIT): New macros for
	supporting W64 ABI.
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	* x86_64: Updated all assembly files to use them.
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	* configure.ac (W64_ABI): New variable, set when compiling for
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	W64 ABI (64-bit M$ windows).
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	* config.m4.in (W64_ABI): Define, from configure substitution.

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2011-11-24  Niels Möller  <nisse@lysator.liu.se>
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	From Martin Storsjö:
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	* 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.

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

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2011-11-24  Niels Möller  <nisse@lysator.liu.se>
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	* configure.ac (HAVE_NATIVE_64_BIT): Workaround to get it set to 1
	on w64.

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

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2011-11-24  Niels Möller  <nisse@lysator.liu.se>
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	From Martin Storsjö:
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	* 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.

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	* 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
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	or wine64 when cross compiling for windows, otherwise empty.
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	* config.make.in (EMULATOR): Set from autoconf value.

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2011-11-20  Niels Möller  <nisse@lysator.liu.se>
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	* x86/camellia-crypt-internal.asm: Take ALIGNOF_UINT64_T into
	account when getting the offset for the subkeys. Differs between
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	w32 and other systems. w32 problem identified by Martin Storsjö.
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	* 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.

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2011-11-19  Niels Möller  <nisse@lysator.liu.se>
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	Cygwin/mingw32 improvements contributed by Martin Storsjö:
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	* 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.
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	(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
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	target for installing the DLL file in $bindir.
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	(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.

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

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2011-10-31  Niels Möller  <nisse@lysator.liu.se>
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	* configure.ac (LIBHOGWEED_LIBS): Typo fix for the darwin case.
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	Spotted by Martin Storsjö.
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2011-10-25  Niels Möller  <nisse@lysator.liu.se>
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	* configure.ac (LIBHOGWEED_LIBS): cygwin fix, added
	libnettle.dll.a. Reported by Volker Zell.

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2011-10-18  Niels Möller  <nisse@lysator.liu.se>
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	* configure.ac: Improved setup för darwin shared libraries.
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	Patch contributed by Ryan Schmidt.

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

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

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

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

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

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2011-09-02  Niels Möller  <nisse@amfibolit.hack.org>
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	* configure.ac: Changed version number to 2.4.

	* Released nettle-2.3.

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2011-08-30  Niels Möller  <nisse@lysator.liu.se>
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	* testsuite/hmac-test.c: Added tests for hmac-ripemd160.

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

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

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2011-08-30  Niels Möller  <nisse@amfibolit.hack.org>
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	* nettle.texinfo (Hash functions): Document ripemd-160.

	* hmac-ripemd160.c: New file.

	* hmac.h: Declare hmac-ripemd160 functions.

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

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	* 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.

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2011-08-28  Niels Möller  <nisse@lysator.liu.se>
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	* ripemd160.c (ripemd160_final): Use LE_WRITE_UINT32. Deleted byte
	swapping at the end, leaving it to ripemd160_digest.
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	(ripemd160_digest): Use _nettle_write_le32.
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	* 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.
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	(_nettle_ripemd160_compress): Use LE_READ_UINT32.
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	* configure.ac (LIBNETTLE_MINOR): Bumped library version, to 4.2.

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	* 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.

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	RIPEMD-160 hash function. Ported from libgcrypt by Andres Mejia.
	* testsuite/ripemd160-test.c: New file.
	* ripemd160.h: New file.
	* nettle-meta.h: Declare nettle_ripemd160.
	* ripemd160.c: New file, ported from libgcrypt.
	* ripemd160-compress.c: Likewise.
	* ripemd160-meta.c: New file.
	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added
	ripemd160-test.c.
	* nettle-meta-hashes.c (nettle_hashes): Added nettle_ripemd160.
	* Makefile.in (nettle_SOURCES): Added ripemd160.c,
	ripemd160-compress.c, and ripemd160-meta.c.
	(HEADERS): Added ripemd160.h.

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2011-08-10  Niels Möller  <nisse@amfibolit.hack.org>
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	* nettle.texinfo: Fixed mis-placed const in various prototypes.
	Spotted by Tatsuhiro Tsujikawa.

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2011-07-24  Niels Möller  <nisse@lysator.liu.se>
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	* Makefile.in (PKGCONFIG_FILES, pkgconfigdir): New variables.
	(DISTFILES): Added nettle.pc.in and hogweed.pc.in.
	(nettle.pc, hogweed.pc): New targets (invoking config.status).
	(install-pkgconfig, uninstall-pkgconfig): New targets.
	(install-here): Depend on install-pkgconfig.
	(uninstall-here): Depend on uninstall-pkgconfig.
	(distclean-here): Delete nettle.pc and hogweed.pc.

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2011-07-20  Niels Möller  <nisse@lysator.liu.se>
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	* configure.ac: Generate nettle.pc and hogweed.pc.

	* nettle.pc.in, hogweed.pc.in: New files.

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2011-07-17  Niels Möller  <nisse@lysator.liu.se>
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	* nettle-internal.h: Added missing extern declarations.

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	* configure.ac: Changed version number to 2.3.

	* Released nettle-2.2.

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	* Makefile.in (DISTFILES): Distribute COPYING.LIB, not COPYING,

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2011-07-07  Niels Möller  <nisse@lysator.liu.se>
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	* tools/misc.h (werror): Removed incorrect noreturn attribute from
	declaration.

	* examples/io.c (read_file): Bug fix, in dependence of initial
	size on max_size.

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2011-07-01  Niels Möller  <nisse@lysator.liu.se>
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	* cbc.c	(CBC_BUFFER_LIMIT): Reduced to 512 bytes.
	(cbc_decrypt): For in-place operation, use overlapping memxor3 and
	eliminate a memcpy.

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	* ctr.c (ctr_crypt): Reorganized to call the encryption function
	with several blocks at a time. Handle the case of a single block
	specially.

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	* x86_64/memxor.asm: Added ALIGN for shifting loop. Deleted
	obsolete ifelse.

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2011-06-30  Niels Möller  <nisse@lysator.liu.se>
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	* configure.ac: Link in serpent-decrypt.asm, if found.

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	* x86_64/serpent-decrypt.asm: Added an SSE2 loop, doing four
	blocks at a time in parallel.

	* x86_64/serpent-encrypt.asm: Include serpent.m4. Deleted a
	redundant label.

	* x86_64/serpent.m4: New file, with serpent-related macros.

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2011-06-29  Niels Möller  <nisse@lysator.liu.se>
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	* x86_64/serpent-decrypt.asm: Wrote main (32-bit) loop.
	(SBOX0I, SBOX1I, SBOX7I): Fixed bugs.

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	* nettle.texinfo (Copyright): Updated for license change to
	LGPLv2+. Updated copyriight info on serpent.

	* NEWS: Updated information for nettle-2.2.

	* x86_64/serpent-decrypt.asm: New file.

	* x86_64/serpent-encrypt.asm: Fixed .file pseudo op.

	* testsuite/testutils.c (test_cipher_ctr): Display more info on
	failure.

	* examples/nettle-benchmark.c (bench_ctr): New function.
	(time_cipher): Also benchmark CTR mode.

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	* configure.ac (LIBNETTLE_MINOR): Updated library version number
	to 4.1.
	(LIBHOGWEED_MINOR): And to 2.1.

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2011-06-22  Niels Möller  <nisse@lysator.liu.se>
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	* configure.ac: Use pwd -P when examining lib directories.
	Link in serpent-encrypt.asm, if found.

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2011-06-21  Niels Möller  <nisse@lysator.liu.se>
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	* serpent-decrypt.c (SBOX3_INVERSE): Eliminated temporaries.
	(SBOX4_INVERSE): Likewise.
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	(SBOX5_INVERSE): Likewise.
	(SBOX6_INVERSE): Likewise.
	(SBOX7_INVERSE): Likewise.
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	(All SBOX_INVERSE-macros): Deleted type argument, and updated users.
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2011-06-20  Niels Möller  <nisse@lysator.liu.se>
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	* serpent-decrypt.c: Renamed arguments in sbox macros.
	(SBOX0_INVERSE): Eliminated temporaries.
	(SBOX1_INVERSE): Likewise.
	(SBOX2_INVERSE): Likewise.

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	* x86_64/serpent-encrypt.asm: Added an SSE2 loop, doing four
	blocks at a time in parallel.

	* testsuite/serpent-test.c (test_main): Added some more multiple
	block tests.

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	* configure.ac (libdir): On 64-bit Linux, we used to assume that
	libraries are installed according to the FHS. Since at least
	Fedora and Gentoo follow the FHS convention, while at least Debian
	doesn't, we have to try to figure out which convention is used.

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2011-06-14  Niels Möller  <nisse@lysator.liu.se>
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	* x86_64/serpent-encrypt.asm: Slight simplification of loop logic.

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	* x86_64/serpent-encrypt.asm: New file.

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	* testsuite/serpent-test.c (test_main): Added tests with multiple
	blocks at a time.

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	* serpent-encrypt.c (SBOX6): Renamed arguments. Eliminated
	temporaries.
	(SBOX7): Likewise.
	(All SBOX-macros): Deleted type argument, and updated users.

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	* configure.ac: Display summary at the end of configure..
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	(asm_path): Set only if enable_assember is yes.

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	* serpent-encrypt.c (SBOX5): Renamed arguments. Eliminated
	temporaries.

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	* serpent-encrypt.c (SBOX4): Renamed arguments. Eliminated
	temporaries.

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	* configure.ac (LIBNETTLE_LINK, LIBHOGWEED_LINK): Cygwin fix, from
	Vincent Torri.

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2011-06-08  Niels Möller  <nisse@lysator.liu.se>
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	* examples/eratosthenes.c (find_first_one): Fixed c99-style
	declaration. Reported by Sebastian Reitenbach.
	(find_first_one): Declare the lookup table as static const, and
	use unsigned char rather than unsigned..

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	* serpent-encrypt.c (SBOX0): Renamed arguments. Eliminated
	temporaries.
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	(SBOX1): Likewise.
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	(SBOX2): Likewise.
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	(SBOX3): Likewise.
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	* Makefile.in (DISTFILES): Added serpent-internal.h.
	(nettle_SOURCES): Replaced serpent.c by serpent-set-key.c,
	serpent-encrypt.c, and serpent-decrypt.c.

	* serpent.c: Replaced by several new files.
	* serpent-set-key.c: New file.
	* serpent-encrypt.c: New file.
	* serpent-decrypt.c: New file.
	* serpent-internal.h: New file.

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	* serpent.c [HAVE_NATIVE_64_BIT]: Process two blocks at a time in
	parallel. Measured speedup of 10%--25% (higher for encryption) on
	x86_64.

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	* serpent.c (ROUNDS): Deleted macro.
	(serpent_block_t): Deleted array typedef.
	(KEYXOR): New macro, replacing BLOCK_XOR.
	(BLOCK_COPY, SBOX, SBOX_INVERSE): Deleted macros.
	(LINEAR_TRANSFORMATION): Use four separate arguments.
	(LINEAR_TRANSFORMATION_INVERSE): Likewise.
	(ROUND): Take separate arguments for all input and output words.
	(ROUND_INVERSE): Likewise.
	(ROUND_LAST, ROUND_FIRST_INVERSE): Deleted macros.
	(serpent_set_key): Moved loop termination test.
	(serpent_encrypt): Rewrote with unrolling of just eight rounds,
	and without serpent_block_t.
	(serpent_decrypt): Likewise.

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	* serpent.c: Added do { ... } while (0) around block macros.
	(serpent_key_t): Deleted array typedef.
	(ROL32, ROR32): Renamed macros, were rol and ror.
	(KS_RECURRENCE, KS): New macros.
	(serpent_key_pad): Renamed, from...
	(serpent_key_prepare): ...old name.
	(serpent_subkeys_generate): Deleted function.
	(serpent_set_key): Rewrote the generation of subkeys. Reduced both
	temporary storage and code size (less unrolling)

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2011-05-31  Niels Möller  <nisse@lysator.liu.se>
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	* testsuite/serpent-test.c (test_main): Enabled test with short,
	40-bit, key.

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	* serpent.c (byte_swap_32): Deleted macro.
	(serpent_key_prepare): Use LE_READ_UINT32. Don't require aligned
	input, and support arbitrary key sizes.

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2011-05-30  Simon Josefsson  <simon@josefsson.org>

	* serpent.c: Rewrite, based on libgcrypt code.  License changed
	from GPL to LGPL.
	* serpent_sboxes.h: Removed.
	* Makefile.in: Drop serpent_sboxes.h.

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	* testsuite/serpent-test.c (test_main): Added some tests for
	padding of keys of length which is not a multiple of four bytes.

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2011-05-30  Simon Josefsson  <simon@josefsson.org>

	* testsuite/serpent-test.c (test_main): Add test vectors from
	libgcrypt.

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2011-05-21  Niels Möller  <nisse@lysator.liu.se>
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	* dsa-keygen.c (dsa_generate_keypair): Avoid double init of mpz
	variable. Spotted by Nikos Mavrogiannopoulos.

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	* configure.ac: Fix link flags for shared libraries on Solaris,
	which needs -h to set the soname. Patch contributed by Dagobert
	Michelsen.

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	* configure.ac: New configure option --enable-gcov.

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	* arcfour.h (arcfour_stream): Deleted obsolete define.
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2011-04-27  Niels Möller  <nisse@lysator.liu.se>
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	* tools/nettle-hash.c (find_algorithm): Require exact match.

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2011-04-15  Niels Möller  <nisse@lysator.liu.se>
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	Reverted broken byte-order change from 2001-06-17:
	* serpent.c (serpent_set_key): Use correct byteorder.
	(serpent_encrypt): Likewise.
	(serpent_decrypt): Likewise.

	* testsuite/serpent-test.c (decode_hex_reverse): New function.
	(RH, RHL): New macros.
	(test_main): Byte reverse inputs and outputs for the testvectors
	taken from the serpent submission package. Enable test vectors
	from http://www.cs.technion.ac.il/~biham/Reports/Serpent/.

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2011-03-23  Niels Möller  <nisse@lysator.liu.se>
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	* tools/sexp-conv.c (xalloc): Deleted function, now it's in misc.c
	instead.

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	* configure.ac: Use LSH_FUNC_STRERROR.

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	* tools/Makefile.in (TARGETS): Added nettle-hash, and related
	build rules.
	(SOURCES): Added nettle-hash.c.

	* tools/misc.c (xalloc): New function.

	* tools/pkcs1-conv.c (main): Made the OPT_* constants local, and
	fixed numerical values to start with non-ASCII 0x300.

	* tools/nettle-hash.c: New file.

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2011-03-23  Niels Möller  <nisse@lysator.liu.se>
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	Contributed by Daniel Kahn Gillmor:
	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added
	meta-hash-test.c, meta-cipher-test.c, and meta-armor-test.c.

	* testsuite/meta-hash-test.c: New file.
	* testsuite/meta-cipher-test.c: New file.
	* testsuite/meta-armor-test.c: New file.

	* nettle.texinfo: Document nettle_hashes and nettle_ciphers.

	* nettle-meta.h: Declare algorithm lists nettle_ciphers,
	nettle_hashes, nettle_armors.

	* Makefile.in (nettle_SOURCES): Added nettle-meta-hashes.c,
	nettle-meta-ciphers.c, and nettle-meta-armors.c.

	* nettle-meta-armors.c: New file.
	* nettle-meta-ciphers.c: New file.
	* nettle-meta-hashes.c: New file.

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2011-02-18  Niels Möller  <nisse@lysator.liu.se>
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	* arcfour.c (arcfour_stream): Deleted function. It's not very
	useful, and neither documented nor tested.

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	* cbc.h (CBC_ENCRYPT): Avoid using NULL; we don't ensure that it
	is defined.
	(CBC_DECRYPT): Likewise.

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	* gcm-aes.c (gcm_aes_set_iv): Use GCM_SET_IV.
	(gcm_aes_set_key): Deleted cast.
	(gcm_aes_encrypt): Likewise.
	(gcm_aes_decrypt): Likewise.
	(gcm_aes_digest): Likewise.
	(gcm_aes_update): One less argument to GCM_UPDATE.

	* gcm.h (GCM_SET_KEY): Added cast to nettle_crypt_func *. Help
	compiler type checking despite this cast.
	(GCM_ENCRYPT): Likewise.
	(GCM_DECRYPT): Likewise.
	(GCM_DIGEST): Likewise.
	(GCM_SET_IV): New macro, for completeness.
	(GCM_UPDATE): Deleted unused argument encrypt.

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2011-02-14  Niels Möller  <nisse@lysator.liu.se>
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	* nettle.texinfo: Split node on cipher modes, and started on
	the GCM documentation.

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	* testsuite/gcm-test.c (test_gcm_aes): Deleted function, replaced
	by test_aead.
	(test_main): Use test_aead.

	* testsuite/testutils.c (test_aead): New function, replacing
	test_gcm_aes and before that test_cipher_gcm.

	* nettle-internal.c (nettle_gcm_aes128): New const struct.
	(nettle_gcm_aes192): Likewise.
	(nettle_gcm_aes256): Likewise.

	* nettle-internal.h (struct nettle_aead): Tentative interface for
	authenticated encryption with associated data.

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	* examples/nettle-benchmark.c (time_gcm): Renamed. Updated for
	gcm_aes_auth to gcm_aes_update renaming. Benchmark both encryption
	and hashing.
	(time_gmac): ...old name.

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	* nettle-internal.c (des_set_key_hack): Don't touch the bits
	parity, since thay are now ignored.
	(des3_set_key_hack): Likewise.

	* cast128-meta.c (nettle_cast128): Don't pass keysize.
	* nettle-meta.h (_NETTLE_CIPHER_FIX): Deleted keysize parameter
	derived from the appropriate constant instead.

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	* testsuite/gcm-test.c (test_gcm_aes): Updated for gcm_aes_auth to
	gcm_aes_update renaming.

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	* gcm.h (GCM_UPDATE): Renamed, from...
	(GCM_AUTH): ...old name.

	* gcm-aes.c (gcm_aes_update): Renamed, from...
	(gcm_aes_auth): ...old name.

	* gcm.c (gcm_update): Renamed, and fixed an assert. From...
	(gcm_auth): ...old name.

	* gcm.h (GCM_TABLE_BITS): Increase table size to 8 bits,
	corresponding to 4 KByte of key-dependent tables.

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2011-02-10  Niels Möller  <nisse@lysator.liu.se>
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	* x86_64/memxor.asm: New file. Improves performance by 22% for the
	unaligned01 case and 35% for the unaligned12 case, benchmarked on
	Intel SU1400.

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	* examples/nettle-benchmark.c (cgt_works_p): New function.
	(cgt_time_start): Likewise.
	(cgt_time_end): Likewise.
	(clock_time_start): Likewise.
	(clock_time_end): Likewise.
	(time_function): Read clock via function pointers time_start and
	time_end, so we can select method at runtime.
	(xalloc): Use die function.
	(main): Choose timing function. If available, try clock_gettime,
	and fall back to clock if it doesn't exist.
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	* examples/nettle-benchmark.c (die): New function.
	(TIME_END, TIME_START): Check return value from clock_gettime.

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	* gcm.h (union gcm_block): Use correct length for w array.

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	* testsuite/gcm-test.c (test_main): Added the rest of the
	testcases from the spec.

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	* testsuite/gcm-test.c (test_main): Enabled testcases 5 and 6,
	with different IV lengths.

	* gcm-aes.c (gcm_aes_set_iv): Updated for gcm_set_iv change.

	* gcm.c (gcm_hash_sizes): New function.
	(gcm_set_iv): Added support for IVs of arbitrary size. Needed
	another argument, for the hash subkey.
	(gcm_digest): Use gcm_hash_sizes.

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	* examples/nettle-benchmark.c (time_gmac): Use gcm_aes interface.

	* testsuite/gcm-test.c (test_gcm_aes): New function, replacing
	test_cipher_gcm and using the new gcm_aes interface.
	(test_main): Updated to use test_gcm_aes.
	* testsuite/testutils.c (test_cipher_gcm): Deleted function.

	* Makefile.in (nettle_SOURCES): Added gcm-aes.c.

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	* gcm.c (gcm_set_key): Replaced context argument by a struct
	gcm_key *.
	(gcm_hash): Replaced context argument by a struct gcm_key * and a
	pointer to the hashing state block.
	(gcm_auth): Added struct gcm_key * argument.
	(gcm_encrypt): Likewise.
	(gcm_decrypt): Likewise.
	(gcm_digest): Likewise.

	* gcm-aes.c: New file.
	(gcm_aes_set_key): New function.
	(gcm_aes_set_iv): Likewise.
	(gcm_aes_auth): Likewise.
	(gcm_aes_encrypt): Likewise.
	(gcm_aes_decrypt): Likewise.
	(gcm_aes_digest): Likewise.

	* gcm.h (struct gcm_key): Moved the key-dependent and
	message-independent state to its own struct.
	(struct gcm_ctx): ... and removed it here.
	(GCM_CTX): New macro.
	(GCM_SET_KEY): Likewise.
	(GCM_AUTH): Likewise.
	(GCM_ENCRYPT): Likewise.
	(GCM_DECRYPT): Likewise.
	(GCM_DIGEST): Likewise.
	(struct gcm_aes_ctx): New struct.

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	* gcm.h (struct gcm_ctx): The hash key is now always an array,
	named h, with array size depending on GCM_TABLE_BITS.
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	* gcm.c (gcm_gf_shift): Added a separate result argument.
	(gcm_gf_mul): Compile bitwise version only when GCM_TABLE_BITS ==
	0. Simplified interface with just two arguments pointing to
	complete blocks.
	(gcm_gf_shift_4, gcm_gf_shift_8): Renamed table-based functions, from...
	(gcm_gf_shift_chunk): ... old name.
	(gcm_gf_mul): Renamed both table-based versions and made the
	argument types compatible with the bitwise gcm_gf_mul.
	(gcm_gf_mul_chunk): ... the old name.
	(gcm_set_key): Initialize the table using adds and shifts only.
	When GCM_TABLE_BITS > 0, this eliminates the only use of the
	bitwise multiplication.
	(gcm_hash): Simplified, now that we have the same interface for
	gcm_gf_mul, regardless of table size.

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	* gcm.c	(GHASH_POLYNOMIAL): Use unsigned long for this constant.
	(gcm_gf_shift_chunk): Fixed bugs for the big endian 64-bit case,
	e.g., sparc64. For both 4-bit and 8-bit tables.

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	* gcm.c: Use the new union gcm_block for all gf operations.

	* gcm.h (union gcm_block): New union, used to enforce alignment.

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	* gcm.c (gcm_gf_shift_chunk) : Bug fix for little-endian 8-bit
	tables.

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	* gcm.c (gcm_gf_mul_chunk): Special case first and last iteration.
	(gcm_gf_add): New function, a special case of memxor. Use it for
	all memxor calls with word-aligned 16 byte blocks. Improves
	performance to 152 cycles/byte with no tables, 28 cycles per byte
	with 4-bit tables and 10.5 cycles per byte with 8-bit tables.

	Introduced 8-bit tables. If enabled, gives gmac performance of 19
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	cycles per byte (still on intel x86_64).
	* gcm.c (gcm_gf_shift_chunk): New implementation for 8-bit tables.
	(gcm_gf_mul_chunk): Likewise.
	(gcm_set_key): Generate 8-bit tables.

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	* Makefile.in (SOURCES): Added gcmdata.c.

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	* gcm.h (GCM_TABLE_BITS): Set to 4.

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2011-02-06  Niels Möller  <nisse@lysator.liu.se>
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	* Makefile.in (TARGETS): Added gcmdata.
	(gcmdata): New rule.

	Introduced 4-bit tables. Gives gmac performance of 45 cycles per
	byte (still on intel x86_64).
	* gcm.c (gcm_gf_shift): Renamed. Tweaked little-endian masks.
	(gcm_rightshift): ... old name.
	(gcm_gf_mul): New argument for the output. Added length argument
	for one of the inputs (implicitly padding with zeros).
	(shift_table): New table (in 4-bit and 8-bit versions), generated
	by gcmdata.
	(gcm_gf_shift_chunk): New function shifting 4 bits at
	a time.
	(gcm_gf_mul_chunk): New function processing 4 bits at a time.
	(gcm_set_key): Generation of 4-bit key table.
	(gcm_hash): Use tables, when available.

	* gcmdata.c (main): New file.

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	* gcm.c (gcm_rightshift): Moved the reduction of the shifted out
	bit here.
	(gcm_gf_mul): Updated for gcm_rightshift change. Improves gmac
	performance to 181 cycles/byte.

	* gcm.c (gcm_gf_mul): Rewrote. Still uses the bitwise algorithm from the
	specification, but with separate byte and bit loops. Improves gmac
	performance a bit further, to 227 cycles/byte.

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	* gcm.c (gcm_rightshift): Complete rewrite, to use word rather
	than byte operations. Improves gmac performance from 830 cycles /
	byte to (still poor) 268 cycles per byte on intel x86_64.

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2011-02-05  Niels Möller  <nisse@lysator.liu.se>
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	* examples/nettle-benchmark.c (time_gmac): New function.
	(main): Call time_gmac.

	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added gcm-test.c.

	* testsuite/testutils.c (test_cipher_gcm): New function,
	contributed by Nikos Mavrogiannopoulos.

	* testsuite/gcm-test.c: New file, contributed by Nikos
	Mavrogiannopoulos.

	* Makefile.in (nettle_SOURCES): Added gcm.c.
	(HEADERS): Added gcm.h.

	* gcm.c: New file, contributed by Nikos Mavrogiannopoulos.
	* gcm.h: New file, contributed by Nikos Mavrogiannopoulos.

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	* macros.h (INCREMENT): New macro, moved from ctr.c. Deleted third
	argument.
	* ctr.c: Use INCREMENT macro from macros.h, deleted local version.

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2011-01-07  Niels Möller  <nisse@lysator.liu.se>
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	* testsuite/Makefile.in (check): Add ../.lib to PATH, since that's
	where w*ndows looks for dlls.

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	* testsuite/testutils.c (test_cipher_stream): More debug output on
	failure.

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2010-12-14  Niels Möller  <nisse@lysator.liu.se>
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	* nettle-types.h: Deleted some unnecessary parenthesis from
	function typedefs.
	(nettle_realloc_func): Moved typedef here...
	* realloc.h: ...from here.

	* buffer.c (nettle_buffer_init_realloc): Use an explicit pointer
	for realloc argument.

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2010-12-07  Niels Möller  <nisse@lysator.liu.se>
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	* nettle.texinfo (Copyright): Updated info on blowfish.

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	Reapplied optimizations (150% speedup on x86_32) and other fixes,
	relicensing them as LGPL.
	* blowfish.c (do_encrypt): Renamed, to...
	(encrypt): ...new name.
	(F): Added context argument. Shift input explicitly, instead of
	reading individual bytes via memory.
	(R): Added context argument.
	(encrypt): Deleted a bunch of local variables. Using the context
	pointer for everything should consume less registers.
	(decrypt): Likewise.
	(initial_ctx): Arrange constants into a struct, to simplify key
	setup.
	(blowfish_set_key): Some simplification.

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2010-11-26  Simon Josefsson  <simon@josefsson.org>

	* blowfish.c: New version ported from libgcrypt. License changed
	from GPL to LGPL.

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	* Makefile.in (install-shared-nettle): Use INSTALL_DATA, which
	clears the execute permission bits.
	(install-shared-hogweed): Likewise.

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2010-11-16  Niels Möller  <nisse@lysator.liu.se>
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	* configure.ac: Updated gmp url.

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2010-11-01  Niels Möller  <nisse@lysator.liu.se>
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	* tools/misc.c (werror): Don't call exit (copy&paste-error).

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2010-10-26  Niels Möller  <nisse@lysator.liu.se>
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	* examples/rsa-encrypt.c (main): No extra message for bad options.

	* examples/rsa-keygen.c (main): Added long options. Deleted -?,
	and fixed handling of bad options.

	* examples/next-prime.c (main): Deleted -?, and fixed handling of
	bad options.
	* examples/random-prime.c (main): Likewise.

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2010-10-22  Niels Möller  <nisse@lysator.liu.se>
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	* examples/nettle-benchmark.c (main): Added long options. Deleted -?,
	and fixed handling of bad options.

	* examples/eratosthenes.c (main): Added long options. Deleted -?,
	and fixed handling of bad options. Renamed -s to -q (long option
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	--quiet).
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	* tools/pkcs1-conv.c (main): Deleted short alias -? for --help,
	and fixed handling of bad options.
	* tools/sexp-conv.c (parse_options): Likewise.

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2010-10-06  Niels Möller  <nisse@lysator.liu.se>
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	* memxor.c (memxor3): Optimized.
	(memxor3_common_alignment): New function.
	(memxor3_different_alignment_b): New function.
	(memxor3_different_alignment_ab): New function.
	(memxor3_different_alignment_all): New function.

	* examples/nettle-benchmark.c (time_function): Reorganized, to
	reduce overhead.
	(time_memxor): Also benchmark memxor3.

	* x86_64/memxor.asm: New file.

	* examples/nettle-benchmark.c (overhead): New global variable.
	(time_function): Compensate for call overhead.
	(bench_nothing, time_overhead): New functions.
	(time_memxor): Tweaked src size, making it an integral number of
	words.
	(main): Call time_overhead.

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2010-10-01  Niels Möller  <nisse@lysator.liu.se>
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	* x86_64/camellia-crypt-internal.asm (ROUND): Reordered sbox
	lookups.

	* testsuite/memxor-test.c: Also test memxor3.

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2010-09-30  Niels Möller  <nisse@lysator.liu.se>
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	* configure.ac: Link in memxor.asm, if found.

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	* testsuite/testutils.c (test_cipher_cbc): Print more info when
	failing.

	* testsuite/memxor-test.c (test_xor): Added verbose printout.

	* examples/nettle-benchmark.c (time_memxor): Count size of
	unsigned long as "block size" for memxor.

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2010-09-24  Niels Möller  <nisse@lysator.liu.se>
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	* testsuite/.test-rules.make: Added rule for memxor-test.
	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added memxor-test.c
	* testsuite/memxor-test.c: New file.

	* memxor.c (memxor_common_alignment): New function.
	(memxor_different_alignment): New function.
	(memxor): Optimized to do word-operations rather than byte
	operations.

	* configure.ac (HAVE_NATIVE_64_BIT): New config.h define.

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	Partial revert of 2010-09-20 changes.
	* camellia-set-encrypt-key.c (camellia_set_encrypt_key):
	Reintroduce CAMELLIA_F_HALF_INV, for 32-bit machines.
	* camellia-crypt-internal.c (CAMELLIA_ROUNDSM): Two variants,
	differing in where addition of the key is done.
	* x86/camellia-crypt-internal.asm: Moved addition of key.

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2010-09-22  Niels Möller  <nisse@lysator.liu.se>
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	* examples/nettle-benchmark.c (BENCH_INTERVAL): Changed unit to
	seconds.
	(time_function): Use clock_gettime with CLOCK_PROCESS_CPUTIME_ID,
	if available. This gives better accuracy, at least on recent
	linux.
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	(BENCH_INTERVAL): Reduced to 0.1 s.
	(struct bench_memxor_info): New struct.
	(bench_memxor): New function.
	(time_memxor): New function.
	(main): Use time_memxor. Added optional argument used to limit the
	algorithms being benchmarked.
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	(GET_CYCLE_COUNTER): Define also for x86_64.
	(time_memxor): Improved display.
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	* examples/Makefile.in (nettle-benchmark): Link using
	$(BENCH_LIBS) rather than $(LIBS).

	* configure.ac: Check for clock_gettime, and add -lrt to
	BENCH_LIBS if needed.

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2010-09-20  Niels Möller  <nisse@lysator.liu.se>
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	* configure.ac: Less quoting when invoking $CC, to allow CC="gcc
	-m32".

	* x86/camellia-crypt-internal.asm (ROUND): Adapted to new key
	convention, moving key xor to the end.

	* camellia-set-encrypt-key.c (CAMELLIA_F_HALF_INV): Deleted macro.
	(camellia_set_encrypt_key): Deleted the CAMELLIA_F_HALF_INV
	operations intended for moving the key xor into the middle of the
	round.

	* camellia-crypt-internal.c (CAMELLIA_ROUNDSM): Moved addition of
	key to the end, to use a 64-bit xor operation.

	* x86_64/camellia-crypt-internal.asm: New file.

	* x86_64/machine.m4 (LREG, HREG, XREG): New macros.

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2010-09-17  Niels Möller  <nisse@lysator.liu.se>
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	* configure.ac: Support shared libraries (dlls) with mingw32.
	Contributed by David Hoyt.

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2010-07-25  Niels Möller  <nisse@lysator.liu.se>
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	* configure.ac: Changed version number to nettle-2.2.

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	* Released nettle-2.1.

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	* configure.ac: Use camellia-crypt-internal.asm, if available.
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	Bumped soname to libnettle.so.4, and reset LIBNETTLE_MINOR to
	zero.
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	* x86/machine.m4 (LREG, HREG): Moved macros here, from...
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	* x86/aes.m4: ...here.

	* x86/camellia-crypt-internal.asm: New file.

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	* nettle.texinfo: Updated and expanded section on DSA.
	Document aes_invert_key, and camellia. Added missing functions
	rsa_sha512_verify and rsa_sha512_verify_digest.

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	* camellia.h (struct camellia_ctx): Eliminate the two unused
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	subkeys, and renumber the remaining ones.
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	* camellia-crypt-internal.c (_camellia_crypt): Updated for
	renumbered subkeys.
	* camellia-set-encrypt-key.c (camellia_set_encrypt_key): Likewise.
	* camellia-set-decrypt-key.c (camellia_invert_key): Likewise.

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	* camellia-set-encrypt-key.c (camellia_set_encrypt_key): Inline
	the expansion of camellia_setup128 and camellia_setup256, keeping
	the unexpanded key in scalar variables.
	(camellia_setup128): Deleted.
	(camellia_setup256): Deleted.

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	* camellia-set-encrypt-key.c (camellia_set_encrypt_key): Reduced
	code size, no complete loop unroll. Use one loop for each phase of
	the post-processing.

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	* testsuite/camellia-test.c: New tests for camellia_invert_key.
	* testsuite/aes-test.c: New tests for aes_invert_key.

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	* aes.h (aes_invert_key): Declare it.

	* aes-set-decrypt-key.c (aes_invert_key): New function, key
	inversion code extracted from aes_set_decrypt_key.
	(aes_set_decrypt_key): Use aes_invert_key.

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	* camellia-set-encrypt-key.c (camellia_setup128): Generate
	unmodified subkeys according to the spec. Moved clever combination
	of subkeys to camellia_set_encrypt_key.
	(camellia_setup256): Likewise.
	(camellia_set_encrypt_key): Moved subkey post-processing code
	here, and reduce code duplication between 128-bit keys and larger
	keys.

	* camellia.c: Deleted file, split into several new files...
	* camellia-table.c (_camellia_table): New file with the constant
	sbox tables.
	* camellia-set-encrypt-key.c: New file.
	(camellia_setup128): Generate unmodified subkeys according to the
	spec. Moved clever combination of subkeys to camellia_set_encrypt_key.
	(camellia_setup256): Likewise.

	* camellia-set-decrypt-key.c: New file.
	(camellia_invert_key): Key inversion function.
	(camellia_set_decrypt_key): New key setup function.
	* camellia-internal.h: New file.
	* camellia-crypt.c (camellia_crypt): New file, new wrapper
	function passing the sbox table to _camellia_crypt.
	* camellia-crypt-internal.c (_camellia_crypt): New file, with main
	encrypt/decrypt function.
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	* Makefile.in (nettle_SOURCES): Updated list of camellia source files.
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	(DISTFILES): Added camellia-internal.h.
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	* camellia-meta.c: Use _NETTLE_CIPHER_SEP_SET_KEY.

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	* camellia.h (struct camellia_ctx): Replaced flag camellia128 by
	expanded key length nkeys.

	* camellia.c (camellia_set_encrypt_key): Renamed, from...
	(camellia_set_key): ... old name.
	(camellia_invert_key): New function.
	(camellia_set_decrypt_key): New function, using
	camellia_invert_key.
	(camellia_crypt): Renamed, from...
	(camellia_encrypt): ... old name.
	(camellia_decrypt): Deleted, no longer needed. camellia_crypt used
	for both encryption and decryption.

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	* nettle-meta.h (_NETTLE_CIPHER_SEP_SET_KEY): New macro.

	* dsa-keygen.c: Removed unnecessary include of memxor.h.

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	* camellia.c: Rewrote to use 64-bit type for subkeys and use
	64-bit operations throughout. Performance on x86_32, when compiled
	with gcc-4.4.4, is reduced by roughly 15%, this should be fixed
	later.

	* camellia.h (struct camellia_ctx): Use type uint64_t for subkeys.

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	* aes.h (aes_encrypt, aes_decrypt): Declare ctx argument as const.
	Also updated implementation.
	* blowfish.h (blowfish_encrypt, blowfish_decrypt): Likewise.
	* cast128.h (cast128_encrypt, cast128_decrypt): Likewise.
	* serpent.h (serpent_encrypt, serpent_decrypt): Likewise.
	* twofish.h (twofish_encrypt, twofish_decrypt): Likewise.

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	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added
	camellia-test.c.

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

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	* Makefile.in (nettle_SOURCES): Added camellia.c and
	camellia-meta.c.
	(HEADERS): Added camellia.h.

	* nettle-meta.h (nettle_camellia128): Declare.
	(nettle_camellia192): Likewise.
	(nettle_camellia256): Likewise.

	* camellia-meta.c: New file.

	* camellia.h: Rewrote interface to match nettle conventions.

	* camellia.c: Converted to nettle conventions.
	(camellia_encrypt128, camellia_encrypt256): Unified to new
	function...
	(camellia_encrypt): ...New function, with a loop doing 6
	regular rounds, one FL round and one FLINV round per iteration,
	with iteration count depending on the key size.

	(camellia_decrypt128, camellia_decrypt256): Similarly unified
	as...
	(camellia_decrypt): ...New function, analogous to
	camellia_encrypt.

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	* camellia.c, camellia.h: New files, copied from
	http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/camellia-LGPL-1.2.0.tar.gz.

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

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2010-07-05  Niels Möller  <nisse@lysator.liu.se>
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	* nettle.texinfo: Document new conventions for weak key and des
	parity checks. Document des_check_parity.

	* testsuite/des-test.c (test_weak): Don't check the deleted status
	attribute.

	* des-compat.c (des_key_sched): Rewrote error checking logic for
	the case of non-zero des_check_key.

	* des3.c (des3_set_key): Changed weak key detection logic.
	Complete key setup also for weak keys, and don't set the status
	attribute.

	* des.c (des_set_key): New iteration logic, to keep key pointer
	unchanged. Moved weak key check to the end, and don't set the
	status attribute.
	(des_encrypt): Ignore status attribute.
	(des_decrypt): Likewise.

	* des.h (enum des_error): Deleted.
	(struct des_ctx): Deleted status attribute.
	(struct des3_ctx): Likewise.

	* blowfish.c (initial_ctx): Deleted status value.
	(blowfish_encrypt): Ignore status attribute.
	(blowfish_decrypt): Likewise.
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	(blowfish_set_key): Return result from weak key check, without
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	setting the status attribute.

	* blowfish.h (enum blowfish_error): Deleted.
	(struct blowfish_ctx): Deleted status attribute.

	* Makefile.in (des_headers): Deleted parity.h.

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2010-06-30  Niels Möller  <nisse@lysator.liu.se>
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	* testsuite/des-test.c (test_des): New function.
	(test_weak): New function.
	(test_main): Use test_des and test_weak. Added tests for all the
	weak keys. Added some tests with invalid (to be ignored) parity
	bits.

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	* des.c (parity_16): New smaller parity table.
	(des_check_parity): New function.
	(des_fix_parity): Use parity_16.
	(des_weak_p): New weak-key detection. Ignores parity bits, and
	uses a hash table.
	(des_set_key): Deleted parity checking code. Replaced old weak-key
	detection code by a call to des_weak_p.

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2010-06-04  Niels Möller  <nisse@lysator.liu.se>
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	* testsuite/testutils.c (test_dsa_key): Updated for new name
	DSA_SHA1_MIN_P_BITS.

	* dsa-keygen.c (dsa_generate_keypair): Use DSA_SHA1_MIN_P_BITS and
	DSA_SHA256_MIN_P_BITS.

	* dsa.h (DSA_MIN_P_BITS, DSA_Q_OCTETS, DSA_Q_BITS): Renamed to...
	(DSA_SHA1_MIN_P_BITS, DSA_SHA1_Q_OCTETS, DSA_SHA1_Q_BITS): New
	names.

	* sexp2dsa.c (dsa_keypair_from_sexp_alist): New argument q_bits.
	Renamed parameter limit to p_max_bits.
	(dsa_sha1_keypair_from_sexp): Renamed, was dsa_keypair_from_sexp.
	Updated to call dsa_keypair_from_sexp_alist with the new argument.
	(dsa_sha256_keypair_from_sexp): New function.
	(dsa_signature_from_sexp): New argument q_bits.

	* der2dsa.c (dsa_params_from_der_iterator): Enforce 160-bit limit
	on q. Renamed parameter limit to p_max_bits.
	(dsa_openssl_private_key_from_der_iterator): Enforce 160-bit limit
	on q and x. Renamed parameter limit to p_max_bits.

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2010-06-03  Niels Möller  <nisse@lysator.liu.se>
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	* testsuite/dsa-test.c (test_main): Added test for dsa-sha256.

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2010-06-02  Niels Möller  <nisse@lysator.liu.se>
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	* testsuite/dsa-test.c (test_main): Provide expected value of the
	signature.

	* testsuite/testutils.c (test_dsa160): Added argument for expected
	signature.
	(test_dsa256): Likewise.

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2010-06-01  Niels Möller  <nisse@lysator.liu.se>
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	* testsuite/rsa-keygen-test.c (test_main): Updated expected
	signatures.

	* examples/random-prime.c (main): Updated for nettle_random_prime
	change.
	* testsuite/random-prime-test.c (test_main): Likewise.

	* rsa-keygen.c (bignum_random_prime): Deleted function.
	(rsa_generate_keypair): Use new nettle_random_prime. Generate
	secret factors p and q with the two most significant bits set.

	* dsa-keygen.c (dsa_generate_keypair): Updated for changes in
	nettle_random_prime and _nettle_generate_pocklington_prime. Invoke
	progress callback.

	* bignum-random-prime.c (_nettle_generate_pocklington_prime): New
	argument top_bits_set, to optionally generate primes with the two
	most significant bits set. Reordered argument list.
	(nettle_random_prime): Likewise, added top_bits_set argument.
	Invoke progress callback when a prime is generated.

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2010-05-26  Niels Möller  <nisse@lysator.liu.se>
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	* dsa-keygen.c (dsa_generate_keypair): Use
	_nettle_generate_pocklington_prime. Deleted old key generation
	code.

	* bignum-random-prime.c (_nettle_generate_pocklington_prime): Also
	return the used r. Updated caller.

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	* examples/random-prime.c (main): Allow sizes down to 3 bits.

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	* bignum-random-prime.c (_nettle_generate_pocklington_prime): New
	function. Rely on mpz_probab_prime_p (for lack of a trial division
	function) for trial division.
	(nettle_random_prime): Rewritten. Uses the prime table for the
	smallest sizes, then trial division using a new set of tables, and
	then Maurer's algorithm, calling the new
	_nettle_generate_pocklington_prime for the final search.

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2010-05-25  Niels Möller  <nisse@lysator.liu.se>
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	* testsuite/dsa-test.c (test_main): Updated for dsa testing
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	changes.
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	* testsuite/dsa-keygen-test.c (test_main): Test dsa256.

	* testsuite/testutils.h (struct nettle_mac): New struct, currently
	unused.

	* testsuite/testutils.c (test_mac): New function (currently not
	used).
	(test_dsa): Replaced by two new functions...
	(test_dsa160): New function.
	(test_dsa256): New function.
	(test_dsa_key): New argument q_size.
	(DSA_VERIFY): Generalized.

	* dsa-keygen.c (dsa_generate_keypair): Rewritten, now generating
	primes using Pocklington's theorem. Takes both p_size and q_size
	as arguments.

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2010-05-20  Niels Möller  <nisse@lysator.liu.se>
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	* bignum-random-prime.c (miller_rabin_pocklington): Fixed broken
	logic when Miller-rabin succeeds early.

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2010-04-09  Niels Möller  <nisse@lysator.liu.se>
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	* bignum-next-prime.c: Include stdlib.h, needed for alloca on
	freebsd.
	* hmac.c: Likewise.

	* examples/Makefile.in (SOURCES): Added random-prime.c.

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	* examples/random-prime.c: New program.

	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Moved
	knuth-lfib-test.c, cbc-test.c, ctr-test.c, hmac-test.c here, from
	TS_HOGWEED_SOURCES.
	(TS_HOGWEED_SOURCES): Added random-prime-test.c.

	* testsuite/random-prime-test.c: New test case.

	* examples/next-prime.c (main): With no command line arguments.
	exit after dislaying usage message.

	* examples/io.c (simple_random): Free buffer when done.

	* configure.ac: Changed message, say CC is the recommended
	way to configure the ABI.

	* bignum-random.c: Deleted test of HAVE_LIBGMP.
	* bignum.c: Likewise.
	* sexp2bignum.c: Likewise.

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	* Makefile.in (hogweed_SOURCES): Added bignum-random-prime.c.

	* bignum-random-prime.c (nettle_random_prime): New file, new
	function.

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2010-03-31  Niels Möller  <nisse@lysator.liu.se>
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	* examples/nettle-benchmark.c (main): Benchmark sha224.

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	* testsuite/testutils.c (DSA_VERIFY): Updated for dsa_sha1_verify
	rename.
	(test_dsa): Check return value from dsa_sha1_sign.

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	* Makefile.in (hogweed_SOURCES): Added dsa-sha1-sign.c,
	dsa-sha1-verify.c, dsa-sha256-sign.c, and dsa-sha256-verify.c.

	* dsa.h: Updated and added dsa declarations.

	* dsa-sha256-verify.c (dsa_sha256_verify_digest): New file, new
	function.
	(dsa_sha256_verify): New function.
	* dsa-sha256-sign.c (dsa_sha256_sign_digest): New file, new
	function.
	(dsa_sha256_sign): New function.

	* dsa-sha1-verify.c (dsa_sha1_verify_digest): New file. Moved and
	renamed function, from dsa_verify_digest, rewrote to use
	_dsa_verify.
	(dsa_sha1_verify): Analogous change, renamed from dsa_verify.
	* dsa-sha1-sign.c (dsa_sha1_sign_digest): New file. Moved and
	renamed function, from dsa_sign_digest, rewrote to use _dsa_sign,
	and added return value.
	(dsa_sha1_sign): Analogous change, renamed from dsa_sign.

	* dsa-verify.c (_dsa_verify): New general verification function,
	for any hash.
	* dsa-sign.c (_dsa_sign): New general signing function, for any
	hash. Returns success code, like the rsa signture functions.

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2010-03-29  Niels Möller  <nisse@lysator.liu.se>
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	* configure.ac (ABI): Attempt to use a better, ABI-dependant,
	default value for libdir.

	* x86/md5-compress.asm: Fixed function name in epilogue.

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	* asm.m4 (EPILOGUE): Use . to refer to current address.

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	* configure.ac (ABI): Detect which ABI the compiler is using.
	On x86_64, also check for __arch64__.

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2010-03-28  Niels Möller  <nisse@lysator.liu.se>
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	* configure.ac (asm_path): For x86_64, check if compiler is
	generating 32-bit code.

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	* testsuite/hmac-test.c (test_main): Rewrote rest of tests to use
	HMAC_TEST, and added more tests from Daniel Kahn Gillmor and from
	RFC 4231.

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	* Makefile.in (nettle_SOURCES): Added hmac-sha224.c and
	hmac-sha384.c.

	* hmac.h: Added declarations of hmac-sha224 and hmac-sha384.

	* hmac-sha224.c: New file.

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2010-03-26  Niels Möller  <nisse@lysator.liu.se>
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	* testsuite/hmac-test.c (HMAC_TEST): New macro.
	(test_main): Use HMAC_TEST for the md5 and sha1 tests, and add
	test vectors from Daniel Kahn Gillmor.

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