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2015-08-25  Niels Möller  <nisse@lysator.liu.se>

	* sha3.h (NETTLE_SHA3_FIPS202): New preprocessor constant.

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2015-08-24  Niels Möller  <nisse@lysator.liu.se>

	* testsuite/sha3.awk: Document origin of test vectors.

	From Nikos Mavrogiannopoulos.
	* sha3.c (_sha3_pad): Update for NIST version.
	* testsuite/sha3-224-test.c: Updated test vectors.
	* testsuite/sha3-256-test.c: Likewise.
	* testsuite/sha3-384-test.c: Likewise.
	* testsuite/sha3-512-test.c: Likewise.

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2015-06-03  Niels Möller  <nisse@lysator.liu.se>

	* arm/neon/chacha-core-internal.asm: New file. 55% speedup over C
	version on Cortex-A9.

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2015-05-19  Niels Möller  <nisse@lysator.liu.se>

	* configure.ac: ABI detection (n32 or n64) on Irix, and
	appropriate default for libdir. Patch from Klaus Ziegler.

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2015-05-12  Niels Möller  <nisse@lysator.liu.se>

	* version.c (nettle_version_major, nettle_version_minor): New
	file. New functions, returning the value of the corresponding
	preprocessor constant.
	* Makefile.in (nettle_SOURCES): Added version.c.
	* testsuite/version-test.c: New testcase.
	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added version-test.c.

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2015-04-29  Niels Möller  <nisse@lysator.liu.se>

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	* arm/v6/sha256-compress.asm: Fix syntax error in offset
	addressing. Spotted by Jukka Ukkonen.
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	* arm/v6/aes-decrypt-internal.asm: Drop %-prefix on r12 register.
	* arm/v6/aes-encrypt-internal.asm: Likewise.

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2015-04-24  Niels Möller  <nisse@lysator.liu.se>

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	* Released nettle-3.1.1.

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	* configure.ac: Bump package version, to nettle-3.1.1.
	(LIBNETTLE_MINOR, LIBHOGWEED_MINOR): Bump minor versions, to
	libnettle.so.6.1 and and libhogweed.so.4.1.

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2015-04-22  Niels Möller  <nisse@lysator.liu.se>

	* x86_64/gcm-hash8.asm: Use ".value" instead of ".short", since
	the latter is not supported by the Sun/Oracle assembler.

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2015-04-13  Niels Möller  <nisse@lysator.liu.se>

	* configure.ac: Fix shell quoting in test of GMP_NUMB_BITS asm
	compatibility. Reported by Edward Sheldrake.

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2015-04-07  Niels Möller  <nisse@lysator.liu.se>

	* Released nettle-3.1.

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2015-03-31  Niels Möller  <nisse@lysator.liu.se>
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	* x86_64/ecc-224-modp.asm: Require that GMP_NUMB_BITS == 64.
	* x86_64/ecc-521-modp.asm: Likewise. Note that the other
	ecc-*-modp.asm files happen to work fine on x86_64, with either 32
	or 64 bits.

	* asm.m4 (GMP_NUMB_BITS): New macro, expanding to nothing.

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	* configure.ac: Move tests for compiler characteristics,
	libraries, and GMP_NUMB_BITS, before assembler-related tests.
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	For files in $asm_hogweed_optional_list, check if they declare
	a GMP_NUMB_BITS requirement, and skip files which are incompatible
	with the configuration. Needed for --enable-mini-gmp om w64.
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	* Makefile.in (clean-here): Unconditionally delete *.a (including
	stub libraries like *.dll.a).

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2015-03-30  Niels Möller  <nisse@lysator.liu.se>
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	* version.h.in (GMP_NUMB_BITS) [NETTLE_USE_MINI_GMP]: Move
	definition here (uses configure substitution).
	* bignum.h (GMP_NUMB_BITS): ...old location.

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	* nettle.texinfo: Updated version number.
	(Installation): Document some more configure options.

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	* testsuite/symbols-test: Look for NETTLE_USE_MINI_GMP in
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	version.h, not bignum.h. Allow leading underscore on mini-gmp
	symbols.
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2015-03-26  Niels Möller  <nisse@lysator.liu.se>
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	* Makefile.in (PRE_CPPFLAGS): Drop -I$(srcdir), no longer needed.
	(HEADERS): Added bignum.h. Removed version.h.
	(INSTALL_HEADERS): Added version.h.
	(DISTFILES): Removed bignum.h.in.
	(bignum.h): Deleted make target.
	(distclean-here): Don't delete bignum.h.

	* configure.ac: No longer generate bignum.h.

	* bignum.h: Renamed. Removed substitution of NETTLE_USE_MINI_GMP,
	and include version.h instead.
	* bignum.h.in: ... old name.

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	* version.h.in (NETTLE_USE_MINI_GMP): Substitute here.

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2015-03-25  Niels Möller  <nisse@lysator.liu.se>
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	* configure.ac (MAJOR_VERSION, MINOR_VERSION): Tweak sed
	expressions, to tolerate version suffixes.

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	* Makefile.in (distdir): Include assembly files from the new
	x86_64/aesni, x86_64/fat, and arm/fat directories.

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	* ed25519-sha512-pubkey.c: Fix stack overwrite. The digest array
	must have room for a complete sha512 digest.

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2015-03-19  Niels Möller  <nisse@lysator.liu.se>
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	* Makefile.in (OPT_HOGWEED_SOURCES): Deleted make variable.
	(nettle_SOURCES, hogweed_SOURCES): Don't include optional sources
	here.
	(OPT_SOURCES): New variable.
	(SOURCES): Include OPT_SOURCES.
	(DISTFILES): Drop mini-gmp.c here, included via OPT_SOURCES.
	(nettle_OBJS, hogweed_OBJS): Add the object files corresponding to
	the optional source files included in the build.

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	* ecc-curve.h (nettle_curve25519): Removed public declaration.
	* ecc-internal.h (_nettle_curve25519): New location, new name.
	Updated all users.

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	* nettle.texinfo: Updated EdDSA documentation.

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	* Makefile.in (DISTFILES): Added version.h.in, libnettle.map.in,
	and libhogweed.map.in (latter two patch by Nikos).
	(version.h): New make target.
	(distclean-here): Added version.h, libnettle.map, and
	libhogweed.map.

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	From Nikos Mavrogiannopoulos.
	* configure.ac (MAJOR_VERSION, MINOR_VERSION): New substituted
	variables.
	* version.h.in: New file, defining version numbers.

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2015-03-18  Niels Möller  <nisse@lysator.liu.se>
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	EdDSA interface change, use plain strings to represent keys.
	* eddsa.h (_ED25519_LIMB_SIZE): Deleted constant.
	(struct ed25519_private_key, ed25519_public_key): Deleted.
	* eddsa-expand.c (_eddsa_expand_key): Don't compute the public
	key.
	(_eddsa_expand_key_itch): Deleted function.
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	* eddsa-pubkey.c (_eddsa_public_key, _eddsa_public_key_itch): New
	file, new functions.
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	* ed25519-sha512-pubkey.c (ed25519_sha512_public_key): New file
	and function.
	* ed25519-sha512-verify.c (ed25519_sha512_set_public_key): Deleted
	function.
	(ed25519_sha512_verify): Use a string to represent the public key.
	* ed25519-sha512-sign.c (ed25519_sha512_set_private_key): Deleted
	function.
	(ed25519_sha512_sign): Use strings for the input key pair.
	* Makefile.in (hogweed_SOURCES): Added eddsa-pubkey.c and
	ed25519-sha512-pubkey.c.
	* testsuite/eddsa-sign-test.c (test_eddsa_sign): Adapt to
	_eddsa_expand_key changes, and use _eddsa_public_key.
	* testsuite/ed25519-test.c (test_one): Test
	ed25519_sha512_public_key, and adapt to new ed25519 interface.
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2015-03-14  Niels Möller  <nisse@lysator.liu.se>
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	* ccm.c (memeql_sec): New function, more side-channel silent than
	memcmp.
	(ccm_decrypt_message): Use it.

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2015-03-12  Niels Möller  <nisse@lysator.liu.se>
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	* base64.h (struct base64_encode_ctx): Micro optimization of
	struct layout, saving a few bytes.
	(struct base64_decode_ctx): Likewise.
	* base16.h (struct base16_decode_ctx): Likewise.

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	* nettle.texinfo (ASCII encoding): Document base64url functions.

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2015-03-10  Niels Möller  <nisse@lysator.liu.se>
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	* nettle.texinfo: Update documentation of curve25519_mul. Say that
	the output is undefined for points belonging to the twist rather
	than the proper curve.

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	* curve25519-mul.c (curve25519_mul): Changed return type to void.
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	* curve25519.h (curve25519_mul): Updated prototype.
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	* examples/hogweed-benchmark.c (bench_curve25519_mul): Drop check
	of curve25519_mul return value.
	* testsuite/curve25519-dh-test.c (test_a): Likewise.

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2015-02-26  Niels Möller  <nisse@lysator.liu.se>
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	* nettle.texinfo: Document curve25519 and eddsa.

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2015-02-10  Niels Möller  <nisse@lysator.liu.se>

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	* base64url-meta.c (nettle_base64url): New file.
	* nettle-meta.h (nettle_base64url): Declare it.
	* nettle-meta-armors.c (nettle_armors): Added nettle_base64url.
	* testsuite/meta-armor-test.c: Updated testcase.
	* testsuite/base64-test.c (test_main): Additional tests, using
	nettle_base64url.
	* Makefile.in (nettle_SOURCES): Added base64url-meta.c.

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	Base-64 generalization to support RFC4648 URL safe alphabet,
	contributed by Amos Jeffries.
	* base64url-decode.c (base64url_decode_init): New file and
	function.
	* base64url-encode.c (base64url_encode_init): New file and
	function.
	* Makefile.in (nettle_SOURCES): Added base64url-encode.c and
	base64url-decode.c.
	* base64.h: Declare new functions.
	* testsuite/base64-test.c (test_fuzz): Test base64url encoding and
	decoding.

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	* base64.h (struct base64_encode_ctx): Added pointer to alphabet.
	(struct base64_decode_ctx): Added pointer to decoding table.
	* base64-decode.c (base64_decode_init): Initialize table pointer.
	Moved definition of table to local scope.
	(base64_decode_single): Use the context's decoding table.
	* base64-encode.c (ENCODE): Added alphabet argument. Updated all
	uses.
	(encode_raw): New static function, like base64_encode_raw
	but with an alphabet argument.
	(base64_encode_raw): Call encode_raw.
	(base64_encode_init): Initialize alphabet pointer.
	(base64_encode_single, base64_encode_update, base64_encode_final):
	Use the context's alphabet.

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2015-02-09  Niels Möller  <nisse@lysator.liu.se>

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	* base64-encode.c (base64_encode): Deleted old #if:ed out
	function.

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	* testsuite/base64-test.c (test_fuzz_once, test_fuzz): Additional
	tests, based on contribution by Amos Jeffries.

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2015-02-05  Niels Möller  <nisse@lysator.liu.se>

	* configure.ac (LIBHOGWEED_MAJOR): Undo latest bump, 4 should be
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	enough (previous release, nettle-3.0, used 3).
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2015-01-30  Niels Möller  <nisse@lysator.liu.se>

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	Update chacha-poly1305 for draft-irtf-cfrg-chacha20-poly1305-08.
	* chacha-poly1305.h (CHACHA_POLY1305_NONCE_SIZE): Increase to 12
	bytes, i.e., CHACHA_NONCE96_SIZE.
	* chacha-poly1305.c (chacha_poly1305_set_nonce): Use
	chacha_set_nonce96.
	(poly1305_pad): New function.
	(chacha_poly1305_encrypt): Use poly1305_pad.
	(chacha_poly1305_digest): Call poly1305_pad, and format length
	fields as a single poly1305 block.

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	* chacha-set-nonce.c (chacha_set_nonce96): New function.
	* chacha.h (CHACHA_NONCE96_SIZE): New constant.
	* testsuite/chacha-test.c: Add test for chacha with 96-bit nonce.

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2015-01-27  Niels Möller  <nisse@lysator.liu.se>

	* ecc.h: Deleted declarations of unused itch functions. Moved
	declarations of internal functions to...
	* ecc-internal.h: ...new location. Also added a leading under
	score on the symbols.
	(ecc_a_to_j, ecc_j_to_a, ecc_eh_to_a, ecc_dup_jj, ecc_add_jja)
	(ecc_add_jjj, ecc_dup_eh, ecc_add_eh, ecc_add_ehh, ecc_mul_g)
	(ecc_mul_a, ecc_mul_g_eh, ecc_mul_a_eh): Affected functions.

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	* ecc-add-eh.c (ecc_add_eh_itch): Deleted.
	* ecc-add-ehh.c (ecc_add_ehh_itch): Deleted.
	* ecc-add-jja.c (ecc_add_jja_itch): Deleted.
	* ecc-add-jjj.c (ecc_add_jjj_itch): Deleted.
	* ecc-dup-eh.c (ecc_dup_eh_itch): Deleted.
	* ecc-dup-jj.c (ecc_dup_jj_itch): Deleted.
	* ecc-eh-to-a.c (ecc_eh_to_a_itch): Deleted.
	* ecc-j-to-a.c (ecc_j_to_a_itch): Deleted.
	* ecc-mul-a-eh.c (ecc_mul_a_eh_itch): Deleted.
	* ecc-mul-a.c (ecc_mul_a_itch): Deleted.
	* ecc-mul-g-eh.c (ecc_mul_g_eh_itch): Deleted.
	* ecc-mul-g.c (ecc_mul_g_itch): Deleted.

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	* arm/fat/sha1-compress-2.asm: New file.
	* arm/fat/sha256-compress-2.asm: Likewise.
	* fat-arm.c (fat_init): Setup for use of additional v6 assembly
	functions.

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	* sha1-compress.c: Prepare for fat build with C and assembly
	implementations.
	* sha256-compress.c: Likewise.

	* fat-setup.h (sha1_compress_func, sha256_compress_func): New typedefs.

	* configure.ac (asm_nettle_optional_list): Added
	sha1-compress-2.asm and sha256-compress-2.asm, and corresponding
	HAVE_NATIVE_*.

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	From Martin Storsjö:
	* arm: Add .arch directives for armv6. This allows building these
	files as part of a fat build, even if the assembler by default
	targets a lower architecture version.

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2015-01-23  Niels Möller  <nisse@lysator.liu.se>

	* fat-setup.h (DEFINE_FAT_FUNC): Check value of function pointer,
	before calling fat_init. Should be correct even without memory
	barrier.
	* fat-x86_64.c (fat_init): Deleted static variable initialized.
	The checks of the relevant pointer in DEFINE_FAT_FUNC is more
	robust.
	* fat-arm.c (fat_init): Likewise.

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	* fat-arm.c (fat_init): Setup for use of neon assembly functions.

	* arm/fat/salsa20-core-internal-2.asm: New file.
	* arm/fat/sha3-permute-2.asm: New file.
	* arm/fat/sha512-compress-2.asm: New file.
	* arm/fat/umac-nh-2.asm: New file.
	* arm/fat/umac-nh-n-2.asm: New file.

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	* salsa20-core-internal.c: Prepare for fat build with C and
	assembly implementations.
	* sha512-compress.c: Likewise.
	* sha3-permute.c: Likewise.
	* umac-nh.c: Likewise.
	* umac-nh-n.c: Likewise.

	* configure.ac (asm_nettle_optional_list): Added more *-2.asm
	files, and corresponding HAVE_NATIVE_* defines. Recognize PROLOGUE
	macro in asm files, also when not at the start of the line.

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	* fat-arm.c (get_arm_features): Check NETTLE_FAT_OVERRIDE
	environment variable.

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	* fat-x86_64.c (get_x86_features): New function. Check
	NETTLE_FAT_OVERRIDE environment variable.
	(fat_init): Use it.

	* fat-setup.h (secure_getenv) [!HAVE_SECURE_GETENV]: Dummy
	definition, returning NULL.
	(ENV_OVERRIDE): New constant.

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	* configure.ac: Check for secure_getenv function.

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2015-01-19  Niels Möller  <nisse@lysator.liu.se>

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	* configure.ac: Fat library setup for arm.
	* fat-arm.c: New file.
	* arm/fat/aes-encrypt-internal.asm: New files.
	* arm/fat/aes-encrypt-internal-2.asm: New file.
	* arm/fat/aes-decrypt-internal.asm: New file.
	* arm/fat/aes-decrypt-internal-2.asm: New file.

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	* Makefile.in (DISTFILES): Added fat-setup.h.

	* fat-setup.h: New file, declarations moved from...
	* fat-x86_64.c: ... old location

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	* fat-x86_64.c (DECLARE_FAT_FUNC, DEFINE_FAT_FUNC)
	(DECLARE_FAT_FUNC_VAR): New macros, to define needed resolver and
	wrapper functions.

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	* config.m4.in (SYMBOL_PREFIX): Define from from autoconf
	ASM_SYMBOL_PREFIX.
	(C_NAMS): move definition to...
	* asm.m4 (C_NAME): Define here, also take fat_transform.
	(fat_suffix): Replaced by...
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	(fat_transform): New macro, taking symbol name as argument.
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	Updated all uses of fat_suffix.
	* fat-x86_64.c: Updated for internal "_nettle" prefix on
	cpu-specific memxor functions.

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	* fat-x86_64.c: Set up for sse2 vs non-sse2 memxor. Patch by Nikos
	Mavrogiannopoulos.
	* configure.ac (asm_nettle_optional_list): Added memxor-2.asm.
	* x86_64/fat/memxor-2.asm: New file.
	* x86_64/fat/memxor.asm: New file.

	* x86_64/memxor.asm: Use ifdef, not ifelse, for testing USE_SSE2.

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2015-01-16  Niels Möller  <nisse@lysator.liu.se>

	* configure.ac (OPT_NETTLE_SOURCES): New substituted variable.
	(asm_path): Fixed x86_64 fat setup. Include only x86_64 and
	x86_64/fat in the asm_path. Put fat-x86_64.c in
	OPT_NETTLE_SOURCES, with no symlinking.

	* fat-x86_64.c: Renamed,...
	* x86_64/fat/fat.c: ... from old name.

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	* x86_64/fat/fat.c: For constructor hack, check
	HAVE_GCC_ATTRIBUTE, not __GNUC__. Also support sun compilers, as
	suggested by Nikos Mavrogiannopoulos, and attch the constructor
	attribute directly to fat_init.
	(fat_constructor): Deleted wrapper function.

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	* x86_64/fat/fat.c: New file, initialization for x86_64 fat
	library.

	* x86_64/fat/cpuid.asm (_nettle_cpuid): New file and function.

	* x86_64/fat/aes-encrypt-internal.asm: New file, including
	x86_64/aes-encrypt-internal.asm, after setting fat_suffix to
	_x86_64.
	* x86_64/fat/aes-decrypt-internal.asm: New file, analogous setup.
	* x86_64/fat/aes-encrypt-internal-2.asm: New file, including
	x86_64/aesni/aes-encrypt-internal.asm, after setting fat_suffix to
	_aesni.
	* x86_64/fat/aes-decrypt-internal.asm-2: New file, analogous
	setup.

	* configure.ac: New command line option --enable-fat.
	(asm_nettle_optional_list): Added cpuid.asm, fat.c,
	aes-encrypt-internal-2.asm, and aes-decrypt-internal-2.asm.

	* asm.m4 (fat_suffix): New suffix added to symbol names.

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	* x86_64/aesni/aes-encrypt-internal.asm: Use explicit .byte
	sequences for aes instructions, don't rely on assembler support.
	* x86_64/aesni/aes-decrypt-internal.asm: Likewise.

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	* aclocal.m4 (NETTLE_CHECK_IFUNC): New macro, checking for ifunc
	and settting HAVE_LINK_IFUNC if working.
	* configure.ac: Use it.

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	* asm.m4 (DECLARE_FUNC): New macro, extracted from PROLOGUE.
	(PROLOGUE): Use it.

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	* configure.ac (OPT_NETTLE_OBJS, OPT_HOGWEED_OBJS): Renamed
	substituted variables, and list the object files rather than
	source files.
	(OPT_ASM_NETTLE_SOURCES, OPT_ASM_HOGWEED_SOURCES): ...Old names.
	* Makefile.in (OPT_NETTLE_OBJS, OPT_HOGWEED_OBJS): Use new
	variables.

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	* x86_64/aesni/aes-decrypt-internal.asm: New file.
	* x86_64/aesni/aes-encrypt-internal.asm: New file.
	* configure.ac: New configure flag --enable-x86-aesni.

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	* aclocal.m4 (LSH_RPATH_INIT): Handle freebsd, in the same way as
	gnu/linux, with -Wl,-rpath,.

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	Merged memxor-reorg changes, starting at 2014-10-23.

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2015-01-10  Niels Möller  <nisse@lysator.liu.se>

	* arm/memxor.asm (memxor3): Moved to new file.
	* arm/memxor3.asm: New file.

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2014-11-24  Niels Möller  <nisse@lysator.liu.se>

	* x86_64/memxor3.asm (memxor3): New file, code moved from old
	memxor.asm.
	* x86_64/memxor.asm (memxor): Rewritten, no longer jumps into
	memxor3.

	* configure.ac (asm_replace_list): Added memxor.asm and
	memxor3.asm.

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	* configure.ac (IF_ASM): New substituted variable.
	* testsuite/Makefile.in (VALGRIND): Allow partial loads only when
	build includes assembly files.

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	* memxor-internal.h (READ_PARTIAL): New macro.
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	* memxor.c (memxor_different_alignment): Avoid out-of-bounds
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	reads, corresponding to valgrind's --partial-loads-ok. Use
	READ_PARTIAL.
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	* memxor3.c: Analogous changes for unaligned operations.
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	* configure.ac (asm_replace_list): Deleted memxor.asm, now
	incompatible with the memxor/memxor3 split.

	* memxor3.c: New file, split off from memxor.c.
	* memxor-internal.h: New file, declarations shared by memxor.c and
	memxor3.c.
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	* memxor.c: memxor3 functions moved out from this file.
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	* Makefile.in (nettle_SOURCES): Added memxor3.c.
	(DISTFILES): Added memxor-internal.h.

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	* memxor.c (memxor_common_alignment, memxor_different_alignment)
	(memxor): Change loop order, iterate from the end.
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	(memxor3_common_alignment): Unroll twice.
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	(word_t): On x86_64, unconditionally define as uint64_t, to get 64
	bits also in M$ windows. Replaced all uses of SIZEOF_LONG.
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2014-12-12  Niels Möller  <nisse@lysator.liu.se>

	* cbc.h (CBC_ENCRYPT, CBC_DECRYPT): Make type-checking hack
	stricter, warn if type of length argument is smaller than size_t.
	* ctr.h (CTR_CRYPT): Likewise.
	* eax.h (EAX_SET_KEY, EAX_SET_NONCE, EAX_UPDATE, EAX_ENCRYPT)
	(EAX_DECRYPT, EAX_DIGEST): Likewise.
	* gcm.h (GCM_SET_KEY, GCM_ENCRYPT, GCM_DECRYPT, GCM_DIGEST):
	Likewise.

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	* aclocal.m4 (LD_VERSION_SCRIPT): Linker scripts no longer located
	in the source tree.

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	* configure.ac (LIBNETTLE_MAJOR): Bump major number, now 6.
	(LIBHOGWEED_MAJOR): Bump major number, now 5.

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	From Nikos Mavrogiannopoulos. Support for versioned symbols.
	* aclocal.m4 (LD_VERSION_SCRIPT): New macro. Substitute
	EXTRA_LINKER_FLAGS and EXTRA_HOGWEED_LINKER_FLAGS.
	* configure.ac: Use LD_VERSION_SCRIPT. Generate libnettle.map
	and libhogweed.map.
	(HOGWEED_EXTRA_SYMBOLS): New substituted variable.
	* libnettle.map.in: New file, libnettle.so linker script
	* libhogweed.map.in: New file, libhogweed.so linker script.
	* Makefile.in ($(LIBNETTLE_FORLINK)): Use EXTRA_LINKER_FLAGS.
	($(LIBHOGWEED_FORLINK)): Use EXTRA_HOGWEED_LINKER_FLAGS.

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2014-11-24  Niels Möller  <nisse@lysator.liu.se>

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	* gcm.h (GCM_SET_KEY): Rename macro argument KEY to avoid
	collision with a struct tag. Spotted by Nikos Mavrogiannopoulos.

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	* testsuite/eddsa-verify-test.c (test_eddsa): Fixed test case bug,
	showing up as use of uninitialized data with valgrind.

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2014-10-23  Niels Möller  <nisse@lysator.liu.se>

	* examples/nettle-benchmark.c (time_memxor): Allocate buffers as
	arrays of unsigned long, for more reliable alignment.

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	* configure.ac: Check for getline function.
	* testsuite/ed25519-test.c (getline) [!HAVE_GETLINE]: Fallback
	definition.

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	* Makefile.in (clean-here): Unconditionally delete .so and .dll
	files.
	(IMPLICIT_TARGETS): Deleted variable.

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2014-10-21  Niels Möller  <nisse@lysator.liu.se>

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	* testsuite/ed25519-test.c: New test case. Optionally reads the
	file pointed to by $ED25519_SIGN_INPUT.

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	* testsuite/testutils.c (tstring_hex): Rewrite, using Nettle's
	base16 functions.
	(decode_hex, decode_hex_length): Deleted functions.

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2014-10-20  Niels Möller  <nisse@lysator.liu.se>

	* eddsa.h (ED25519_KEY_SIZE): New constant.
	(ED25519_SIGNATURE_SIZE): New constant.
	(struct ed25519_private_key): New struct.
	(struct ed25519_public_key): New struct.

	* ed25519-sha512-sign.c (ed25519_sha512_set_private_key)
	(ed25519_sha512_sign): New file and functions.
	* ed25519-sha512-verify.c (ed25519_sha512_set_public_key)
	(ed25519_sha512_verify): New file and functions.
	* Makefile.in (hogweed_SOURCES): Added ed25519-sha512-sign.c and
	ed25519-sha512-verify.c.


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2014-10-18  Niels Möller  <nisse@lysator.liu.se>

	* eddsa-verify.c (_eddsa_verify): Change argument order, putting A
	before ctx.
	* eddsa.h: Updated prototype.
	* testsuite/eddsa-verify-test.c (test_eddsa): Updated
	_eddsa_verify calls.

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	* eddsa-verify.c (equal_h): New function.
	(_eddsa_verify): Use it for a proper point compare, replacing an
	ecc_add_ehh.

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	* testsuite/eddsa-verify-test.c: New testcase.
	* testsuite/Makefile.in (TS_HOGWEED_SOURCES): Added
	eddsa-verify-test.c.

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	* eddsa-verify.c (_eddsa_verify, eddsa_verify_itch): New file, new
	functions.
	* eddsa.h: Declare new functions.
	* Makefile.in (hogweed_SOURCES): Added eddsa-verify.c.

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2014-10-08  Niels Möller  <nisse@lysator.liu.se>

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	* testsuite/eddsa-sign-test.c (test_eddsa_sign): Use
	_eddsa_expand_key, and check its public key output.

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	* eddsa-expand.c (_eddsa_expand_key): New file, new function.
	* eddsa.h (_eddsa_expand_key): Declare it.
	* Makefile.in (hogweed_SOURCES): Added eddsa-expand.c.

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	* eddsa-sign.c: Drop unneeded include of nettle-internal.h.

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	* testsuite/eddsa-sign-test.c: New testcase.
	* testsuite/Makefile.in (TS_HOGWEED_SOURCES): Added
	eddsa-sign-test.c.

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	* eddsa-sign.c (_eddsa_sign, _eddsa_sign_itch): New file, new
	functions.
	* eddsa-hash.c (_eddsa_hash): New file and function.
	* eddsa.h: Declare new functions.
	* Makefile.in (hogweed_SOURCES): Added eddsa-hash.c and
	eddsa-sign.c.

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	* testsuite/ecc-redc-test.c [NETTLE_USE_MINI_GMP]: Enable test.
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	(test_main): Replace gmp_fprintf calls.
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	* testsuite/ecc-mul-a-test.c: Likewise.
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	* testsuite/ecc-mul-g-test.c: Likewise.
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	* testsuite/ecc-modinv-test.c [NETTLE_USE_MINI_GMP]: Enable test.
	(ref_modinv): Use mpz_gcdext, instead of mpn_gcdext.
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	(test_modulo): Replace gmp_fprintf calls.
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	* testsuite/ecc-mod-test.c [NETTLE_USE_MINI_GMP]: Enable test.
	(ref_mod): Use mpz_mod and mpz_limbs_copy, instead of mpn_tdiv_qr.
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	(test_modulo): Replace gmp_fprintf calls by plain fprintf and
	mpn_out_str.
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	* testsuite/testutils.c (mpn_out_str): New function, needed to
	replace uses of gmp_fprintf.

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	* testsuite/ecc-sqrt-test.c (mpz_ui_kronecker)
	[NETTLE_USE_MINI_GMP]: New fallback definition when building with
	mini-gmp.
	* testsuite/testutils.c (gmp_randinit_default)
	[NETTLE_USE_MINI_GMP]: Likewise.
	(mpz_urandomb): Likewise.
	* testsuite/testutils.h (gmp_randstate_t) [NETTLE_USE_MINI_GMP]:
	Fallback typedef, using knuth_lfib_ctx.

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	* testsuite/eddsa-compress-test.c: New testcase.
	* testsuite/Makefile.in (TS_HOGWEED_SOURCES): Added
	eddsa-compress-test.c.

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	* eddsa-decompress.c (_eddsa_decompress): New file, new function.
	* eddsa-compress.c (_eddsa_compress): New file, new function.
	* eddsa.h: New file.
	* Makefile.in (HEADERS): Added eddsa.h.
	(hogweed_SOURCES): Added eddsa-compress.c and eddsa-decompress.c.

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	* testsuite/ecc-sqrt-test.c: New test case.
	* testsuite/Makefile.in (TS_HOGWEED_SOURCES): Added
	ecc-sqrt-test.c.

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	* ecc-25519.c (PHIGH_BITS): Always define this constant.
	(ecc_25519_zero_p): New function.
	(ecc_25519_sqrt): Take a ratio u/v as input. Added scratch
	argument. Made static.
	* ecc-internal.h (ecc_mod_sqrt_func): New typedef.
	(struct ecc_modulo): Added sqrt_itch and sqrt function pointer.
	Updated all instances.
	(ecc_25519_sqrt): Deleted declaration, function now static.

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2014-09-24  Niels Möller  <nisse@lysator.liu.se>

	* curve25519.h [__cplusplus]: Fixed extern "C" block.

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	* ecc-hash.c (ecc_hash): Changed argument type from struct
	ecc_curve to struct ecc_modulo. Updated callers.
	* testsuite/ecdsa-sign-test.c (test_main): Updated curve25519
	signature s. Changed since the hash value is truncated a few bits
	more, to match the size of q.
	* testsuite/ecdsa-verify-test.c (test_main): Likewise.

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	* testsuite/ecc-modinv-test.c (zero_p): New function, checking for
	zero modulo p.
	(test_modulo): Use zero_p. Switch to dynamic allocation. Updated
	for larger modinv result area, and use invert_itch.

	* ecc-25519.c (ecc_mod_pow_2kp1): Renamed, and take a struct
	ecc_modulo * as argument.
	(ecc_modp_powm_2kp1): ... old name.
	(ecc_mod_pow_252m3): New function, extracted from ecc_25519_sqrt.
	(ecc_25519_inv): New modp invert function, about 5.5 times faster
	then ecc_mod_inv.
	(ecc_25519_sqrt): Use ecc_mod_pow_252m3.
	(nettle_curve25519): Point to ecc_25519_inv. Updated p.invert_itch
	and h_to_a_itch.

	* ecc-internal.h (struct ecc_modulo): New field invert_itch.
	Updated all implementations.
	(ECC_EH_TO_A_ITCH): Updated, and take invert itch as an argument.
	* ecc-eh-to-a.c (ecc_eh_to_a_itch): Take invert scratch into account.

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	* testsuite/testutils.c (test_ecc_mul_h): Use ecc->h_to_a_itch.

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	* ecc-mod-inv.c (ecc_mod_inv): Interface change, make ap input
	const, and require 2n limbs at rp. Preparing for powm-based
	alternative implementations. Drop #if:ed out code and dp
	temporary. Updated all callers, more complicated cases described
	below.
	* ecc-internal.h (typedef ecc_mod_inv_func): Added const to input
	argument.
	(ECC_MOD_INV_ITCH): Renamed, was ECC_MODINV_ITCH, and reduced to
	2*n.
	* ecc-ecdsa-verify.c (ecc_ecdsa_verify): Overhauled allocation,
	putting mod_inv scratch at the end.

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2014-09-22  Niels Möller  <nisse@lysator.liu.se>

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	* ecc-random.c (ecc_mod_random): Renamed, and take a const struct
	ecc_modulo * as argument. Updated callers.
	(ecc_modq_random): ... old name.

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	* ecc-mod-arith.c: New file, replacing ecc-modp.c and ecc-modq.c.
	All functions take a struct ecc_modulo as argument.
	(ecc_mod_add, ecc_mod_sub, ecc_mod_mul_1, ecc_mod_addmul_1)
	(ecc_mod_submul_1, ecc_mod_mul, ecc_mod_sqr): New functions,
	replacing the corresponding ecc_modp_* functions. For convenience,
	old names are defined as macros wrapping the new functions.
	* ecc-modp.c: Deleted file.
	* ecc-modq.c: Deleted file.
	* Makefile.in (hogweed_SOURCES): Updated accordingly.

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	* testsuite/ecc-redc-test.c (test_main): Relaxed tests for which
	tests to run.

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	* testsuite/ecc-modinv-test.c (test_modulo): New function, same
	organization as in ecc-mod-test.c below.

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	* testsuite/ecc-mod-test.c (test_modulo): New function, testing
	one modulo. Replacing...
	(test_curve): ... old function.
	(test_main): Invoke test_modulo for p and q of each curve.

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	* ecc-internal.h (ecc_mod_inv_func): New typedef.
	(struct ecc_modulo): Added mp1h constant and invert function
	pointer. Updated all callers.
	* ecc-modp.c (ecc_modp_inv): Deleted wrapper function.
	* ecc-modq.c (ecc_modq_inv): Deleted wrapper function.

	* ecc-mod-inv.c (ecc_mod_inv): Renamed file and function. Also
	take a struct ecc_modulo * as argument.
	* sec-modinv.c (sec_modinv): ... the old names. Deleted.
	* Makefile.in (hogweed_SOURCES): Updated accordingly.

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	* examples/ecc-benchmark.c (bench_modinv_powm, bench_curve):
	Updated benchmarking of mpn_sec_powm.

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	* ecc-internal.h (struct ecc_curve): Deleted redc function
	pointer. Use only reduce pointer, which is redc or modp as
	applicable. Updated all users.
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	(struct ecc_modulo): Moved mod and reduce function pointers to
	this struct.
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	* ecc-generic-modp.c (ecc_generic_modp): Deleted file and
	function. We no longer need a wrapper around ecc_mod.
	* ecc-generic-modq.c (ecc_generic_modq): Likewise deleted.
	* Makefile.in (hogweed_SOURCES): Removed ecc-generic-modp.c and
	ecc-generic-modq.c.

	* ecc-internal.h (typedef ecc_mod_func): Take a const struct
	ecc_modulo * argument, not const struct ecc_curve *. Updated all
	implementations and all callers.

	* ecc-mod.c (ecc_mod): Use struct ecc_modulo to specify the
	modulo. Drop input size argument, always reduce from 2*size to
	size.

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	* ecc-internal.h (struct ecc_modulo): New struct, collecting
	constants needed for modulo arithmetic.
	(struct ecc_curve): Use struct ecc_modulo for p and q arithmetic.
	Updated all ecc-related files.

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	* gmp-glue.c (mpn_get_base256_le): Fixed missing update of rn
	counter, making the function clear some bytes beyond the end of
	the output buffer. The bug triggered a make check failure on ARM.

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	* testsuite/testutils.c (ecc_curves): Include curve25519 in list.
	(test_ecc_mul_a): Include reference points for curve25519 (with
	Edwards coordinates). Allow n == 0 and n == 1, comparing to zero
	and the generator, respectively.
	* testsuite/ecc-add-test.c (point_zero_p): Deleted function.
	(test_main): Replace calls to point_zero_p by calls to
	test_ecc_mul_h with n == 0.
	* testsuite/ecc-dup-test.c: Likewise.

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	* testsuite/ecc-modinv-test.c (mpn_zero_p): Moved function, to...
	* testsuite/testutils.c (mpn_zero_p): New location. Also make
	non-static.

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	* testsuite/ecdsa-keygen-test.c (ecc_valid_p): Add special case
	for curve25519.

	* testsuite/ecc-mul-a-test.c (test_main): Fix point negation to
	support curve25519.
	* testsuite/ecc-mul-g-test.c (test_main): Likewise.

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	* ecc-a-to-eh.c (ecc_a_to_eh_itch, ecc_a_to_eh): Deleted file and
	functions.
	* ecc.h: Deleted corresponding declarations.
	* ecc-internal.h (ECC_A_TO_EH_ITCH): Deleted macro.
	* Makefile.in (hogweed_SOURCES): Removed ecc-a-to-eh.c.

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	* testsuite/ecdh-test.c (test_main): Update curve25519 test to use
	Edwards coordinates.
	* testsuite/ecdsa-sign-test.c (test_main): Likewise.
	* testsuite/ecdsa-verify-test.c (test_main): Likewise.

	* ecc-point.c (ecc_point_set): Use Edwards rather than Montgomery
	curve.

	* ecc-mul-a-eh.c (ecc_mul_a_eh, table_init): Take an Edwards point
	as input, not a Montgomery point. Hence, use ecc_a_to_j, not
	ecc_a_to_eh.

	* ecc-eh-to-a.c (ecc_eh_to_a): Just convert to affine coordinates,
	don't transform from Edwards to Montgomery form. Also reduces
	scratch need slightly.
	* ecc-internal.h (ECC_EH_TO_A_ITCH): Reduced.

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	* ecdsa-keygen.c (ecdsa_generate_keypair): Use struct ecc_curve
	function pointers.

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	* testsuite/curve25519-dup-test.c: Deleted file. In the way for
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	conversion to Edwards coordinate convention, and in the end
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	the tests will be done by ecc-dup-test.c.
	* testsuite/curve25519-add-test.c: Similarly deleted.
	* testsuite/Makefile.in (TS_HOGWEED_SOURCES): Removed
	curve25519-dup-test.c and curve25519-add-test.c.

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	* testsuite/ecc-add-test.c: New generalized testcase, to replace
	curve25519-add-test.c.
	* testsuite/ecc-dup-test.c: New generalized testcase, to replace
	curve25519-dup-test.c.
	* testsuite/Makefile.in (TS_HOGWEED_SOURCES): Added ecc-add-test.c
	and ecc-dup-test.c.

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	* testsuite/ecc-mul-a-test.c (test_main): Use struct ecc_curve
	function pointers.
	* testsuite/ecc-mul-g-test.c (test_main): Likewise.

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2014-09-09  Niels Möller  <nisse@lysator.liu.se>

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	* curve25519-mul.c (curve25519_mul): Switch to use Montgomery
	ladder. About 20% faster than current Edwards curve operations.
	Difference is expected to shrink when Edwards operations are
	optimized to take advantage of the twist, but it seems unlikely to
	get significantly faster than the Montgomery ladder.

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	* gmp-glue.c (cnd_swap): Moved function here, made non-static.
	Changed cnd type to mp_limb_t, for consistency with GMP
	mpn_cnd_add_n.
	* sec-modinv.c (cnd_swap): ... old location.
	* gmp-glue.h (cnd_swap): Declare function.

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	* examples/hogweed-benchmark.c (bench_curve25519_mul_g)
	(bench_curve25519_mul, bench_curve25519): New functions.
	(main): Added benchmarking of curve25519 functions.

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	* Makefile.in: Revert 2013-02-06 Makefile changes: use a single
	rule for transforming .asm to .o, and drop include of asm.d.
	Possible now since we generate a single object file from each asm
	file. This change also helps Solaris' make recognize .asm files.
	* config.make.in (.SUFFIXES): Drop .s from list.
	* configure.ac: Delete code to generate asm.d.

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	* Makefile.in: Delete all uses of *.po files, use the same object
	files for both shared and static libraries.
	* configure.ac (dummy-dep-files): Don't create any .po.d files.

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	* aclocal.m4 (LSH_CCPIC): Don't substitute CCPIC here, let
	configure.ac do that if needed.

	* configure.ac (CCPIC_MAYBE, SHLIBCFLAGS): Deleted substituted
	variables. Instead, use CCPIC directly when compiling all library
	files.
	(CCPIC): Set to empty, if --disable-pic is used.

	* config.make.in (SHLIBCFLAGS, CCPIC_MAYBE): Deleted.
	(COMPILE, COMPILE_CXX): Drop CCPIC. New variable EXTRA_CFLAGS,
	which can be set by individual Makefiles.

	* Makefile.in (EXTRA_CFLAGS): Set using CCPIC.
	Also delete all uses of CCPIC_MAYBE and SHLIBCFLAGS.

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	* curve25519-eh-to-x.c (curve25519_eh_to_x): New file, new
	function. The curve25519 transform currently done by ecc_eh_to_a,
	but which should eventually be eliminted from that function.
	* Makefile.in (hogweed_SOURCES): Added curve25519-eh-to-x.c.
	* ecc-internal.h (curve25519_eh_to_x): Declare it.
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	* curve25519-mul.c (curve25519_mul): Use it.
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	* curve25519-mul-g.c (curve25519_mul_g): Likewise. Also introduce
	local variable ecc, and use ecc->mul_g_itch.
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	* testsuite/testutils.c (test_ecc_mul_j): Renamed, to ...
	(test_ecc_mul_h): ... new name. Use ecc->h_to_a function pointer.
	Updated callers.

	* examples/ecc-benchmark.c (bench_add_jjj): Renamed, to ...
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	(bench_add_hhh): ... new name. Use ecc->add_hhh function pointer.
	(bench_add_ehh): Deleted.
	(bench_curve): Use bench_add_hhh for all curves. Use ecc->mul_itch
	for scratch size.

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	Switch the curve25519 implementation to use the isomorphism to the
	twisted Edwards curve which is used for Ed25519 signatures.
	* eccdata.c (ecc_curve_init): Tweaked the transformation constant
	for the isomorphism between curve25519 and the twisted Edwards
	curve.
	* ecc-add-ehh.c (ecc_add_ehh): Updated formulas for the twist curve.
	* ecc-add-eh.c (ecc_add_eh): Likewise.
	* ecc-dup-eh.c (ecc_dup_eh): Likewise.

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	* ecdsa-verify.c (ecdsa_verify): Drop include of ecc-internal.h,
	use ecc_size function instead.

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	* ecc-ecdsa-verify.c (ecc_ecdsa_verify): Use the struct ecc_curve
	function pointers: mul, mul_g, add_hhh, h_to_a.

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	* ecc-internal.h (ECC_ECDSA_VERIFY_ITCH): Deleted macro. Needed
	scratch depends on curve type, not just size.
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	(ecc_add_func): New typedef.
	(struct ecc_curve): New function pointer add_hhh, and constant
	add_hhh_itch. Updated all instances.

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	* ecdsa-verify.c (ecdsa_verify): Use the ecc_ecdsa_verify_itch
	function, not the corresponding macro.
	* ecc-ecdsa-verify.c (ecc_ecdsa_verify_itch): Take ecc->mul_itch
	into account. Also reduce to 5*ecc->size + ecc->mul_itch.

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	* testsuite/ecdsa-sign-test.c (test_main): Added test for the
	obscure case of ecdsa using curve25519.
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	* testsuite/ecdsa-verify-test.c (test_main): Likewise (depends on
	above changes).
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	* ecc-ecdsa-sign.c (ecc_ecdsa_sign): Use mul_g and h_to_a function
	pointers. Implies (obscure) support for curve25519.

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	* ecc-25519.c (ecc_25519_modq): Access q via the ecc struct.

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	* ecc-eh-to-a.c (ecc_eh_to_a): Analogous change as for ecc_j_to_a.
	The modulo q case (op == 2) is hardcoded for curve25519.

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	* ecc-j-to-a.c (ecc_j_to_a): For curves using redc, always convert
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	back from redc form. When producing x coordinate only, optionally
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	reduce it modulo q. Completely changes the meaning of the "flags"
	argument, and renames it to "op". Update all users of this
	function or ecc->h_to_a.

	* ecc-ecdsa-sign.c (ecc_ecdsa_sign): Use new ecc_j_to_a modulo q
	feature.
	* ecc-ecdsa-verify.c (ecc_ecdsa_verify): Likewise.

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	* testsuite/symbols-test: Regexp fixes, to better filter out
	get_pc_thunk functions.

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	* ecc-generic-redc.c (ecc_generic_redc): Deleted file and
	function. Split into...
	* ecc-pp1-redc.c (ecc_pp1_redc): New file and function.
	* ecc-pm1-redc.c (ecc_pm1_redc): New file and function.
	* ecc-internal.h: Updated declarations.
	* Makefile.in (hogweed_SOURCES): Replace ecc-generic-redc.c by
	ecc-pp1-redc.c and ecc-pm1-redc.c.
	* ecc-192.c: Use ecc_pp1_redc (benchmarking only).
	* ecc-224.c: Use ecc_pm1_redc when applicable.
	* ecc-256.c: Use ecc_pp1_redc when applicable.
	* ecc-384.c: Use ecc_pp1_redc (benchmarking only).
	* ecc-521.c: Use ecc_pp1_redc (benchmarking only).
	* testsuite/ecc-redc-test.c (test_main): Replace use of
	ecc_generic_redc by ecc_pp1_redc and ecc_pm1_redc.

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	* eccdata.c (output_curve): Don't output ecc_redc_g.
	* ecc-internal.h (struct ecc_curve): Deleted unused field redc_g.
	Updated all instances.

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2014-08-27  Niels Möller  <nisse@lysator.liu.se>

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	* ecc-modq.c (ecc_modq_inv): Use q_bit_size.

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	* ecc-internal.h (struct ecc_curve): New field q_bit_size. Updated
	all instances.

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	* configure.ac: Bumped package version number to 3.1.
	(LIBHOGWEED_MAJOR): Bumped library version to 4.0.

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	Merged curve25519 changes (starting at 2014-07-04).
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	* Makefile.in (clean-here): Added ecc-25519.h.

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2014-08-26  Niels Möller  <nisse@lysator.liu.se>

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	* examples/ecc-benchmark.c (bench_mul_g, bench_mul_a): Use struct
	ecc_curve function pointers.
	(bench_mul_g_eh, bench_mul_a_eh): Deleted.
	(bench_curve): Make modq benchmark unconditional. Use bench_mul_g
	and bench_mul_a also for curve25519.

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	* testsuite/ecc-mod-test.c (test_curve): Make modq test
	unconditional, partially reverting 2014-07-04 change.

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	* ecc-25519.c (ecc_25519_modq): New function.

	* eccdata.c (output_curve): Precomputation for curve25519 mod q.

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	* mini-gmp.c (mpz_abs_sub_bit): Do full normalization, needed in
	case the most significant bit is cleared.

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	* testsuite/ecdh-test.c (set_point): Check return value of
	ecc_point_set.
	(test_main): Enable curve25519 test.

	* ecc-point-mul-g.c (ecc_point_mul_g): Use ecc->mul_g and
	ecc->h_to_a function pointers.
	* ecc-point-mul.c (ecc_point_mul): Use the ecc->mul and
	ecc->h_to_a function pointers.

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	* ecc-internal.h (ecc_mul_g_func, ecc_mul_func, ecc_h_to_a_func):
	New typedefs.
	(struct ecc_curve): New function pointers mul, mul_g, h_to_a, and
	constans for their scratch requirements. Updated all instances.

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	* ecc-point.c (ecc_point_set): Handle curve25519 as a special
	case, when checking if the point is on the curve.

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2014-08-24  Niels Möller  <nisse@lysator.liu.se>

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	* testsuite/ecdh-test.c: Test ecc_point_mul and ecc_point_mul_g,
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	using test data generated by ecc-ref.gp. Tests for all curves
	except curve25519, which doesn't yet work with the general
	ecc_point interface.

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	* testsuite/Makefile.in (TS_HOGWEED_SOURCES): Added ecdh-test.c.

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	* misc/ecc-ref.gp: Script to generate ECDH test data.

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2014-08-23  Niels Möller  <nisse@lysator.liu.se>

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	* ecc-a-to-j.c (ecc_a_to_j): Deleted INITIAL argument.
	* ecc.h (ecc_a_to_j): Updated prototype.
	* ecc-mul-a.c (ecc_mul_a, table_init): Updated calls to ecc_a_to_j.

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	* ecc-mul-a.c (ecc_mul_a): Deleted INITIAL argument, all callers,
	except the tests, pass 1. Updated all callers.
	(table_init): Likewise deleted INITIAL.
	* ecc.h (ecc_mul_a): Updated prototype.
	* testsuite/ecc-mul-a-test.c (test_main): Deleted tests for
	ecc_mul_a with INITIAL == 0.

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	* ecc-internal.h (struct ecc_curve): Reordered struct, moved
	function pointers before pointers to bignum constants.

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	* sec-modinv.c (sec_modinv): Document that for a == 0 (mod m), we
	should produce the "inverse" 0.

	* testsuite/ecc-modinv-test.c (test_main): Check that ecc_modp_inv
	produces 0 if a == 0 or a == p.

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	* x86_64/ecc-25519-modp.asm: New file. Assembly implementation,
	initial version yields 30% speedup of ecc_25519_modp. Early
	folding eliminates one pass of carry propagation, and yields
	almost 20% additional speedup.
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	* ecc-25519.c [HAVE_NATIVE_ecc_25519_modp]: Use assembly version
	if available.

	* configure.ac (asm_hogweed_optional_list): Added ecc-25519-modp.asm.
	Also add HAVE_NATIVE_ecc_25519_modp to config.h.in.

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2014-08-19  Niels Möller  <nisse@lysator.liu.se>

	* examples/ecc-benchmark.c (bench_curve): Support benchmarking of
	curve25519, for now handled as a special case.
	(curves): Added nettle_curve25519.
	(bench_dup_eh, bench_add_eh, bench_add_ehh, bench_mul_g_eh): New
	functions.

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	* testsuite/curve25519-dh-test.c (test_a): Use curve25519_mul.
	(test_main): Use little-endian inputs for test_a.
	(curve25519_sqrt, curve_25519): Deleted static helper functions,
	no longer needed.

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	* curve25519-mul.c (curve25519_mul): New file and function.
	* curve25519.h (curve25519_mul): Declare it.
	* Makefile.in (hogweed_SOURCES): Added curve25519-mul.c.

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	* curve25519-mul-g.c (curve25519_mul_g): Renamed file and
	function, updated callers.
	* curve25519-base.c (curve25519_base): ... old names.
	* Makefile.in (hogweed_SOURCES): Updated for rename.

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	* eccdata.c (output_curve): Compute constants needed for
	Shanks-Tonelli.
	* ecc-25519.c (ecc_modp_powm_2kp1, ecc_25519_sqrt): New functions.
	* ecc-internal.h (ecc_25519_sqrt): Declare it.

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	* testsuite/curve25519-dh-test.c (test_g): Use curve25519_base.
	(test_main): Use little-endian inputs for test_g.

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	* curve25519-base.c (curve25519_base): New file, new function.
	Analogous to NaCl's crypto_scalarmult_base.
	* curve25519.h: New file.
	* Makefile.in (hogweed_SOURCES): Added curve25519-base.c.
	(HEADERS): Added curve25519.h.

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	* gmp-glue.c (mpn_set_base256_le, mpn_get_base256_le): New functions.
	* gmp-glue.h: Declare them.

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	* testsuite/curve25519-dh-test.c (curve25519_sqrt): Fixed memory
	leak, a mpz_clear call was missing.

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	* ecc-internal.h (ECC_MUL_A_EH_WBITS): Set to 4, to enable
	window-based scalar multiplication.

	* ecc-mul-a-eh.c (table_init) [ECC_MUL_A_EH_WBITS > 0]: Fixed
	initialization of TABLE(1).

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	* ecc-internal.h (ECC_MUL_A_EH_WBITS): New constant.
	(ECC_A_TO_EH_ITCH, ECC_MUL_A_EH_ITCH): New macros.
	* ecc-a-to-eh.c (ecc_a_to_eh, ecc_a_to_eh_itch): New file, new
	functions.
	* ecc-mul-a-eh.c: New file.
	(ecc_mul_a_eh): New function. The case [ECC_MUL_A_EH_WBITS > 0]
	not yet working).
	(ecc_mul_a_eh_itch): New function.
	* ecc.h: Declare new functions.
	* Makefile.in (hogweed_SOURCES): Added ecc-a-to-eh.c and
	ecc-mul-a-eh.c.

	* testsuite/curve25519-dh-test.c (curve25519_sqrt): New function.
	(curve_25519): Use ecc_mul_a_eh.
	(test_a): New function.
	(test_main): Test construction of shared secret, using scalar
	multiplication with points other than the fix generator.

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	* ecc-add-ehh.c (ecc_add_ehh): Reduce scratch need.
	* ecc-internal.h (ECC_ADD_EHH_ITCH): Reduced to 7*size.

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2014-07-23  Niels Möller  <nisse@lysator.liu.se>

	* testsuite/curve25519-dh-test.c: New test case, based on
	draft-josefsson-tls-curve25519-05 test vectors.
	* testsuite/Makefile.in (TS_HOGWEED_SOURCES): Added curve25519-dh-test.c.

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2014-07-18  Niels Möller  <nisse@lysator.liu.se>

	* ecc-mul-g-eh.c (ecc_mul_g_eh, ecc_mul_g_eh_itch): New file and
	functions. Untested.
	* ecc.h (ecc_mul_g_eh_itch): Declare new functions.
	* ecc-internal.h (ECC_MUL_G_EH_ITCH): New macro.
	* Makefile.in (hogweed_SOURCES): Added ecc-mul-g-eh.c.

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2014-07-17  Niels Möller  <nisse@lysator.liu.se>

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	* ecc-add-eh.c (ecc_add_eh): Reduce scratch need.
	* ecc-internal.h (ECC_ADD_EH_ITCH): Reduced to 6*size.

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	* testsuite/curve25519-dup-test.c (test_main): Free allocated
	storage.

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	* ecc-add-eh.c (ecc_add_eh, ecc_add_eh_itch): New file, new
	functions.
	* ecc.h: Declare new functions.
	* ecc-internal.h (ECC_ADD_EH_ITCH): New macro.
	* Makefile.in (hogweed_SOURCES): Added ecc-add-eh.c.
	* testsuite/curve25519-add-test.c (test_main): Test ecc_add_eh.
	Additional test for g2+g2. Free allocated storage.
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2014-07-14  Niels Möller  <nisse@lysator.liu.se>

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	* testsuite/curve25519-add-test.c: New test case.
	* testsuite/Makefile.in (TS_HOGWEED_SOURCES): Added
	curve25519-add-test.c.

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	* ecc-add-ehh.c (ecc_add_ehh, ecc_add_ehh_itch): New file, new
	functions.
	* ecc.h (ecc_add_ehh, ecc_add_ehh_itch): Declare them.
	* ecc-internal.h (ECC_ADD_EHH_ITCH): New macro.
	* Makefile.in (hogweed_SOURCES): Added ecc-add-ehh.c.

	* ecc-25519.c (nettle_curve25519): Use ecc_d instead of ecc_b.

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	* eccdata.c: For curve25519, output the Edwards curve constant,
	ecc_d = (121665/121666) mod p.

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	* testsuite/curve25519-dup-test.c (test_main): Add test for 4g.
	Delete some left-over debug output.

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2014-07-11  Niels Möller  <nisse@lysator.liu.se>

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	* misc/ecc-formulas.tex: Some ECC notes.

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	* testsuite/curve25519-dup-test.c: New testcase.
	* testsuite/Makefile.in (TS_HOGWEED_SOURCES): Added
	curve25519-dup-test.c.

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	* testsuite/testutils.c (test_ecc_point): Made non-static.
	* testsuite/testutils.h (struct ecc_ref_point): Moved here, from
	testutils.h.
	(test_ecc_point): Declare it.

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	* ecc-dup-eh.c (ecc_dup_eh, ecc_dup_eh_itch): New file, new functions.
	* ecc-eh-to-a.c (ecc_eh_to_a, ecc_eh_to_a_itch): New file, new
	functions.
	* ecc.h: Declare new functions.
	* ecc-internal.h (ECC_EH_TO_A_ITCH, ECC_DUP_EH_ITCH): New macros.
	* Makefile.in (hogweed_SOURCES): Added ecc-dup-eh.c and
	ecc-eh-to-a.c.

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	* ecc-internal.h (struct ecc_curve): New constant edwards_root.
	* ecc-192.c (nettle_secp_192r1): Updated accordingly, additional
	NULL pointer.
	* ecc-224.c (nettle_secp_224r1): Likewise.
	* ecc-256.c (nettle_secp_256r1): Likewise.
	* ecc-384.c (nettle_secp_384r1): Likewise.
	* ecc-521.c (nettle_secp_521r1): Likewise.
	* ecc-25519.c (nettle_curve25519): Initialize new constant.

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	* eccdata.c (ecc_curve_init): For curve 25519, use correct
	constant for edwards coordinate transform, and output the constant
	as ecc_edwards.

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	* eccdata.c: Use separate is_zero flag to represent the neutral
	element.
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	(output_point, output_point_redc): Unified to a single function,
	with a use_redc flag argument. Also support conversion to Edwards
	form.
	(ecc_curve_init_str): New argument for Edwards curve conversion
	constant.
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	Started curve25519 branch.
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	* ecc-25519.c: New file.
	(ecc_25519_modp): New function.
	(nettle_curve25519): New curve.

	* ecc-curve.h (nettle_curve25519): Declare it.

	* Makefile.in (hogweed_SOURCES): Added ecc-25519.c.
	(ecc-25519.h): New generated file. Add as explicit dependency for
	ecc-25519.o.

	* testsuite/ecc-mod-test.c (test_curve): New function, extracted
	from test_main. Tolerate NULL modq function pointer.
	(test_main): Use test_curve, iterate over supported curves, and
	also test curve_25519 for the new modp function.

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	* ecc-modp.c (ecc_modp_sub_1): Deleted unused function.
	* ecc-internal.h: Deleted corresponding declaration.

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	* examples/nettle-benchmark.c (time_cipher): Fixed memset calls,
	amending the totally broken change from 2014-02-06.

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2014-07-02  Niels Möller  <nisse@lysator.liu.se>

	* eccdata.c (ecc_dup): Use mpz_submul_ui, now available in
	mini-gmp.
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	(ecc_type): New enum, for Weierstrass and Montgomery curves
	(ecc_curve): New field type.
	(ecc_dup): Support montgomery curves.
	(ecc_add): Likewise.
	(ecc_curve_init_str): New argument, for the curve type.
	(ecc_curve_init): Pass curve type to all ecc_curve_init_str calls.
	Recognize curve25519, for bit_size 255.
	(output_modulo): Deleted assert, which isn't true for curve25519.
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2014-06-30  Niels Möller  <nisse@lysator.liu.se>

	* camellia-absorb.c: Include <limits.h>, needed for correct use of
	HAVE_NATIVE_64_BIT. Reported and debugged by Magnus Holmgren.
	Fixes debian build failure on s390x.

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2014-06-26  Niels Möller  <nisse@lysator.liu.se>

	From Martin Storsjö:
	* configure.ac (IF_NOT_SHARED): New substituted variable.
	* hogweed.pc.in: Use @LIBS@, instead of hardcoding -lgmp. When
	shared libraries are disabled, move needed libraries from
	Requires.private: to Requires: and from Libs.private: to Libs:.

 	From Nikos Mavrogiannopoulos.
	* examples/hogweed-benchmark.c (bench_alg): Tolerate alg->init
	returning NULL.
	(bench_openssl_ecdsa_init): Return NULL if
	EC_KEY_new_by_curve_name fails, indicating the curve is not
	supported.

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2014-06-25  Niels Möller  <nisse@lysator.liu.se>

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	Support for building with mini-gmp instead of the real GMP. Loosely
	based on work by Nikos Mavrogiannopoulos.
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	* configure.ac: New command line option --enable-mini-gmp. Also
	disable all libgmp-related checks when enabled.
	(NETTLE_USE_MINI_GMP): New substituted variable.
	(LIBHOGWEED_LIBS): Use $(LIBS) instead of -lgmp.
	(IF_MINI_GMP): New Makefile conditional.
	(GMP_NUMB_BITS): Alternative test for the mini-gmp case.
	Substituted also in bignum.h.
	(HAVE_MPZ_POWM_SEC): Drop this unused check.

	* bignum.h: Renamed, to...
	* bignum.h.in: New name.
	(NETTLE_USE_MINI_GMP): Substituted by configure.
	(GMP_NUMB_BITS): Substituted by configure, for the mini-gmp case.

	* Makefile.in (OPT_HOGWEED_SOURCES): New variable, value
	conditional on @IF_MINI_GMP@.
	(hogweed_SOURCES): Add $(OPT_HOGWEED_SOURCES).
	(PRE_CPPFLAGS): Add -I$(srcdir).
	(HEADERS): Delete bignum.h.
	(INSTALL_HEADERS): Add bignum.h. Also add mini-gmp.h, if mini-gmp
	is enabled.
	(DISTFILES): Added bignum.h.in.
	(bignum.h): New target.
	(distclean-here): Delete bignum.h.

	* examples/ecc-benchmark.c (modinv_gcd) [NETTLE_USE_MINI_GMP]:
	Disable this benchmark.
	(mpn_random) [NETTLE_USE_MINI_GMP]: Provide a simple implementation.

	* testsuite/ecc-mod-test.c [NETTLE_USE_MINI_GMP]: Skip test, it
	depends on gmp_randstate_t.
	* testsuite/ecc-modinv-test.c [NETTLE_USE_MINI_GMP]: Likewise.
	* testsuite/ecc-mul-a-test.c [NETTLE_USE_MINI_GMP]: Likewise.
	* testsuite/ecc-mul-g-test.c [NETTLE_USE_MINI_GMP]: Likewise.
	* testsuite/ecc-redc-test.c [NETTLE_USE_MINI_GMP]: Likewise.

	Various preparations for mini-gmp support.
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	* testsuite/bignum-test.c: Use WITH_HOGWEED instead of HAVE_LIBGMP
	for preprocessor conditionals.
	* testsuite/testutils.h: Likewise.
	* testsuite/sexp-format-test.c: Likewise.

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	* testsuite/ecdsa-keygen-test.c (test_main): Use printf,
	mpz_out_str and write_mpn instead of gmp_fprintf.
	* testsuite/ecdsa-sign-test.c (test_ecdsa): Likewise.
	* testsuite/ecdsa-verify-test.c (test_ecdsa): Likewise.

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	* dsa.h: Include bignum.h instead of gmp.h.
	* ecc-internal.h: Likewise.
	* ecc.h: Likewise.
	* gmp-glue.h: Likewise.
	* pkcs1.h: Likewise.
	* rsa.h: Likewise.

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	* testsuite/testutils.c (die): Use plain vfprintf, not
	gmp_vfprintf.
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	(write_mpn): New function.
	(test_ecc_point): Use it, replacing gmp_fprintf.
	* testsuite/testutils.h (write_mpn): Declare it.
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	* der-iterator.c: Deleted HAVE_LIBGMP conditionals.

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2014-06-07  Niels Möller  <nisse@lysator.liu.se>

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	* Released nettle-3.0.
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2014-06-04  Niels Möller  <nisse@lysator.liu.se>

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	* NEWS: List des-compat.h as a candidate for removal in the next
	release.

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	* testsuite/des-compat-test.c (test_main): Fixed out of bounds
	memory read, reported by Nikos Mavrogiannopoulos.

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	* nettle-write.h: Include <stddef.h>, fixing compilation on
	freebsd.

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	* aclocal.m4 (ac_stdint): Fixed "unsinged" typo, spotted by Andy
	Goth.

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2014-06-01  Niels Möller  <nisse@lysator.liu.se>

	* x86_64/gcm-hash8.asm: Pass correct argument count to W64_EXIT.
	* x86_64/camellia-crypt-internal.asm: Pass correct argument count
	to W64_ENTRY and W64_EXIT.

	* x86_64/machine.m4 [W64_ABI]: Fix for the case of 6 function
	arguments. Also push %rdi unconditionally, and use aligned
	accesses for save and restore %xmm registers (movdqa).

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2014-05-31  Niels Möller  <nisse@lysator.liu.se>

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	* configure.ac: Check for COFF type directives.
	(ASM_COFF_STYLE): New substituted variable.
	* config.m4.in: Set COFF_STYLE from configure.
	* asm.m4 (PROLOGUE): Use COFF type directive, if enabled by
	configure. Fixes problem with windows dll linking.

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	* asm.m4: Deleted unused offsets for struct aes_ctx.

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2014-05-28  Niels Möller  <nisse@lysator.liu.se>

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	* testsuite/nettle-pbkdf2-test: Delete carriage return characters
	from output.

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	* configure.ac (LIBHOGWEED_LIBS): Be explicit and link
	libhogweed.so with libnettle.so, not -lnettle.
	(LIBHOGWEED_LINK): Drop -L. flag, no longer needed, and previously
	not at the correct position in the link command line.

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2014-05-27  Niels Möller  <nisse@lysator.liu.se>

	* examples/ecc-benchmark.c: If mpn_sec_powm is available,
	benchmark it, for modinv.
	(bench_modinv_powm): New function.
	(bench_curve): Use it.

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2014-05-22  Niels Möller  <nisse@lysator.liu.se>

	From Claudio Bley:
	* Makefile.in ($(des_headers)): Use the EXEEXT_FOR_BUILD.

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2014-05-15  Niels Möller  <nisse@lysator.liu.se>

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	* NEWS: Updated with library version numbers.

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	* configure.ac (dummy-dep-files): Use simpler and more portable
	sed expression. Problem reported by Peter Eriksson.
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	(LIBHOGWEED_MAJOR): Bumped shared library version to 3.0.
	(LIBHOGWEED_MINOR): Reset to zero. Also increased the package
	version number to 3.0.
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	* getopt.c: Don't use gettext.

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2014-05-14  Niels Möller  <nisse@lysator.liu.se>

	* testsuite/nettle-pbkdf2-test: Avoid the bash construction
	${#foo}.