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2017-11-12  Niels Möller  <nisse@lysator.liu.se>

	* configure.ac: Update check of GMP_NUMB_BITS declaration in
	assembly files. Was broken by rename of configure variable
	GMP_NUMB_BITS --> NUMB_BITS.

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2017-11-11  Niels Möller  <nisse@lysator.liu.se>

	* nettle.texinfo: Document nettle_get_hashes, nettle_get_ciphers
	and nettle_get_aeads, and replace nettle_secp_256r1 by
	nettle_get_secp_256r1. Update version numbers. Delete ancient
	setting of ispell-skip-region-alist as an emacs file-local
	variable.

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2017-11-08  Niels Möller  <nisse@lysator.liu.se>

	* ecc-curve.h (nettle_secp_192r1, nettle_secp_224r1)
	(nettle_secp_256r1, nettle_secp_384r1, nettle_secp_521r1): Delete
	macro wrappers, partially reverting below 2017-04-09 change. They
	didn't work at all for applications that only see a forward
	declaration of struct ecc_curve. Instead, we will have to make an
	ABI and API break and delete these symbols, when the size of
	struct ecc_curve is increased.

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2017-11-05  Niels Möller  <nisse@lysator.liu.se>

	* configure.ac Bump package version to 3.4.
	(LIBNETTLE_MINOR): Bump library version to 6.4.
	(LIBHOGWEED_MINOR): Bump library version to 4.4.

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2017-10-23  Niels Möller  <nisse@lysator.liu.se>

	* examples/Makefile.in (check): Also set DYLD_LIBRARY_PATH in the
	environment, to support Mac OSX shared libraries.
	* testsuite/Makefile.in (LD_LIBRARY_PATH): Likewise.

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2017-10-23  Niels Möller  <nisse@lysator.liu.se>

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	Merge API fixes, starting at 2017-01-12.
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2017-04-09  Niels Möller  <nisse@lysator.liu.se>

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	* ecc-curve.h (nettle_get_secp_192r1, nettle_get_secp_224r1)
	(nettle_get_secp_256r1, nettle_get_secp_384r1)
	(nettle_get_secp_521r1): New functions, returning a pointer to
	corresponding structure.
	(nettle_secp_192r1, nettle_secp_224r1, nettle_secp_256r1)
	(nettle_secp_384r1, nettle_secp_521r1): Redefined as macros,
	calling the corresponding function.

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	* nettle-meta.h (nettle_ciphers, nettle_aeads, nettle_armors): New
	macros, analogous to below change to nettle_hashes.
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	* nettle-meta-ciphers.c (nettle_get_ciphers): New function.
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	* nettle-meta-aeads.c (nettle_get_aeads): New function.
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	* nettle-meta-armors.c (nettle_get_armors): New function.
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2017-01-12  Niels Möller  <nisse@lysator.liu.se>

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	* tools/nettle-hash.c (find_algorithm): Deleted function.
	(main): Replaced by call to nettle_lookup_hash.

	* testsuite/meta-hash-test.c (test_main): Use nettle_lookup_hash.

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	* nettle-meta.h (nettle_hashes): New macro, expanding to a call to
	nettle_get_hashes. Direct access to the array causes the array
	size to leak into the ABI, since a plain un-relocatable executable
	linking with libnettle.so gets copy relocations for any referenced
	data items in the shared library.

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	* nettle-meta-hashes.c (nettle_get_hashes): New function.
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2017-10-16  Niels Möller  <nisse@lysator.liu.se>

	CFB support, contributed by Dmitry Eremin-Solenikov.
	* cfb.c (cfb_encrypt, cfb_decrypt): New file, new functions.
	* cfb.h: New header file.
	(CFB_CTX, CFB_SET_IV, CFB_ENCRYPT, CFB_DECRYPT): New macros.
	* Makefile.in (nettle_SOURCES): Add cfb.c.
	(HEADERS): Add cfb.h.
	* testsuite/cfb-test.c: New test case.
	* testsuite/testutils.c (test_cipher_cfb): New function.
	* nettle.texinfo (CFB): Documentation.

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2017-10-16  Niels Möller  <nisse@lysator.liu.se>

	* aclocal.m4 (GMP_PROG_CC_FOR_BUILD): Add -g when compiling with
	gcc.

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2017-09-24  Niels Möller  <nisse@lysator.liu.se>

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	* tools/pkcs1-conv.c (base64_decode_in_place): New helper
	function.
	(decode_base64): Use it.

	* sexp-transport-format.c (base64_encode_in_place): New helper
	function.
	(sexp_transport_vformat): Use it.

	* testsuite/base64-test.c (test_fuzz_once): Update to use char
	type where appropriate.
	(test_main): Use helper functions base64_encode_in_place and
	base64_decode_in_place (copied to this file).

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	* testsuite/testutils.c (tstring_data): Use uint8_t for data
	argument.
	* testsuite/testutils.h (SDATA): Use US macro to cast data
	argument.

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2017-09-14  Niels Möller  <nisse@lysator.liu.se>

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	* hkdf.c: Delete unneeded includes. Use Nettle licensing notice.
	* hkdf.h: Include only nettle-types.h, not nettle-meta.h.

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	* ecc-mod.c (ecc_mod): Workaround to silence a false positive from
	the clang static analyzer.

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2017-09-12  Niels Möller  <nisse@lysator.liu.se>

	* testsuite/testutils.h (mpn_zero_p): Avoid redefining mpn_zero_p
	when building with mini-gmp. Since the mini-gmp update, this
	function is defined by mini-gmp, causing link errors if nettle is
	configured with --enable-mini-gmp --disable-shared. Reported by
	Tim Rühsen.

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2017-09-09  Daiki Ueno  <dueno@redhat.com>

	* testsuite/ecc-mul-g-test.c (test_main): Fixed mpn_cmp call.
	* testsuite/ecc-mul-a-test.c (test_main): Likewise.
	* eccdata.c (ecc_point_out): Write to given stream, instead of
	stderr.
	* eccdata.c (output_curve): In curve448, the bit size of the order
	is slightly smaller than the one of p's. Adjust ecc_Bmodq_shifted
	accordingly.

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2017-09-09  Niels Möller  <nisse@lysator.liu.se>

	* mini-gmp.c: Updated mini-gmp from the gmp repository, latest
	change from 2017-07-23.
	* mini-gmp.h: Likewise.

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2017-09-06  Niels Möller  <nisse@lysator.liu.se>

	* hkdf.c (hkdf_expand): Eliminate a (signed) ssize_t variable, use
	break rather than return at loop termination.

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2017-09-06  Niels Möller  <nisse@lysator.liu.se>

	HKDF implementation, contributed by Nikos Mavrogiannopoulos.
	* hkdf.c (hkdf_extract, hkdf_expand): New file, new functions.
	* hkdf.h: New file.
	* Makefile.in (nettle_SOURCES): Add hkdf.c.
	(HEADERS): Add hkdf.h.
	* testsuite/hkdf-test.c: Tests for hkdf-sha256 and hkdf-sha1.
	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added hkdf-test.c.
	* nettle.texinfo (Key derivation functions): Document HKDF.

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2017-09-04  Andreas Schneider  <asn@samba.org>

	* fat-arm.c: Add missing define for _GNU_SOURCE.

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2017-08-27  Niels Möller  <nisse@lysator.liu.se>

	* configure.ac (GMP_NUMB_BITS): Set to dummy value "n/a" in
	mini-gmp builds.
	(NUMB_BITS): New substituted variable which always holds the
	configured value.
	* Makefile.in (GMP_NUMB_BITS): Renamed variable...
	(NUMB_BITS): ...new name
	* config.make.in: Update corresponding substitution.

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2017-08-26  Niels Möller  <nisse@lysator.liu.se>

	* ecc-mod-inv.c (ecc_mod_inv): Add missing assert. Fixes a
	"dead increment" warning from the clang static analyzer.

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2017-08-26  Niels Möller  <nisse@lysator.liu.se>

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	* examples/nettle-openssl.c (struct openssl_cipher_ctx): New
	struct. Use everywhere, instead of typing EVP_CIPHER_CTX pointers
	directly.

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	* configure.ac: Update openssl-related tests. Checks for
	cipher-specific headers are replaced by a check for openssl/evp.h,
	and the check for the BF_ecb_encrypt function is replaced by a
	check for EVP_CIPHER_CTX_new.

2017-08-03  Daniel P. Berrange  <berrange@redhat.com>

	* examples/nettle-openssl.c: Rewritten to use openssl's EVP APIs.
	The older cipher-specific functions always use openssl's generic
	software implementation, while the EVP functions enables
	platform-specific code, e.g., using the x86 AES-NI instructions.
	(nettle_openssl_init): New function.

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2017-07-18  Niels Möller  <nisse@lysator.liu.se>

	* ecc-add-eh.c (ecc_add_eh): Fix in-place operation by reordering
	two multiplies. Previously, in-place operation resulted in an
	invalid call to mpn_mul with overlapping operands. Reported by
	Sergei Trofimovich.

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2017-06-09  Niels Möller  <nisse@lysator.liu.se>

	* pss.c (pss_verify_mgf1): Check for m being too large, fixing an
	assertion failure for certain invalid signatures. Based on a patch
	contributed by Daiki Ueno.

	* testsuite/rsa-pss-sign-tr-test.c (test_main): Add test case
	contributed by Daiki Ueno. Problem originally found by oss-fuzz,
	see https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2132.
	That problem report is currently embargoed, but will hopefully be
	public in a month or two.

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2017-05-23  Niels Möller  <nisse@lysator.liu.se>

	Rework the previous change, which had the unintended effect of
	always regenerating .test-rules.make after ./configure is run.
	* testsuite/Makefile.in (test-rules.stamp): New stamp file target,
	depend on Makefile.in, and run $(MAKE) test-rules.
	(.test-rules.make): Add a level of indirection, by depending on
	test-rules.stamp.

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2017-05-20  Niels Möller  <nisse@lysator.liu.se>

	* testsuite/Makefile.in (test-rules): Use $(srddir)/-prefix for
	.test-rules.make target, and change dependency from Makefile.in to
	Makefile.

2017-05-17  Nikos Mavrogiannopoulos  <nmav@redhat.com>

	* testsuite/Makefile.in: Ensure .test-rules.make is regenerated
	when Makefile.in is modified.

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2017-04-09  Niels Möller  <nisse@lysator.liu.se>

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	* testsuite/dlopen-test.c (main): Call dlclose, to fix memory leak
	on success.

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	* testsuite/pss-test.c: Delete magic to let valgrind to check if
	pss_encode_mgf1 is side-channel silent with respect to the salt
	and digest inputs. It turns out that the most significant bits of
	the padded bignum, and hence its size, depends on these inputs.
	Which results in a data-dependent branch in the normalization code
	of at the end of gmp's mpz_import.

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2017-04-04  Niels Möller  <nisse@lysator.liu.se>

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	* pss.c (pss_verify_mgf1): Use const for input mpz_t argument.
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	(pss_encode_mgf1): Avoid unnecessary memset and xor operations.
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	Merged RSA-PSS support, contributed by Daiki Ueno.
	* pss-mgf1.h, pss.h: New header files.
	* pss-mgf1.c (pss_mgf1): New file and function.
	* pss.c (pss_encode_mgf1, pss_verify_mgf1): New file and
	functions.
	* rsa-verify.c (_rsa_verify_recover): New function.
	* rsa-pss-sha256-sign-tr.c: (rsa_pss_sha256_sign_digest_tr): New
	file and function.
	* rsa-pss-sha256-verify.c (rsa_pss_sha256_verify_digest): New
	file and function.
	* rsa-pss-sha512-sign-tr.c (rsa_pss_sha384_sign_digest_tr)
	(rsa_pss_sha512_sign_digest_tr): New file and functions.
	* rsa-pss-sha512-verify.c (rsa_pss_sha384_verify_digest)
	(rsa_pss_sha512_verify_digest): New file and functions.
	* rsa.h: Prototypes for new functions.
	* testsuite/rsa-pss-sign-tr-test.c: New test case.
	* testsuite/pss-test.c: New test case.
	* testsuite/pss-mgf1-test.c: New test case.
	* Makefile.in, testsuite/Makefile.in: Added new files.
	* nettle.texinfo: Documentation of rsa-pss functions.

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2017-03-20  Niels Möller  <nisse@lysator.liu.se>

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	* nettle-internal.h (NETTLE_MAX_HASH_CONTEXT_SIZE): New constant.
	* testsuite/meta-hash-test.c (test_main): Add sanity check for
	NETTLE_MAX_HASH_CONTEXT_SIZE.

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	* tools/nettle-hash.c (list_algorithms): Also display the internal
	context size.

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2017-01-03  Nikos Mavrogiannopoulos <nmav@redhat.com>

	* ecdsa-verify.c (ecdsa_verify): Eliminated memory leak on error
	path.

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2016-10-10  Niels Möller  <nisse@lysator.liu.se>

	* write-be32.c (_nettle_write_be32): Use const for source argument.
	* write-le32.c (_nettle_write_le32): Likewise.
	* write-le64.c (_nettle_write_le64): Likewise.
	* nettle-write.h: Update prototypes.

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2016-10-01  Niels Möller  <nisse@lysator.liu.se>

	* Released nettle-3.3.

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2016-09-13  Niels Möller  <nisse@lysator.liu.se>

	* nettle-meta-hashes.c (nettle_hashes): Added SHA3 hashes.
	Reported missing by Thomas Walter.
	* testsuite/meta-hash-test.c: Update test accordingly.

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2016-09-07  Niels Möller  <nisse@lysator.liu.se>

	* nettle.texinfo (Elliptic curves): Split into sub-nodes.
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	(Miscellaneous functions): Document memeql_sec.
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	* NEWS: Mention memeql_sec.
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2016-09-06  Niels Möller  <nisse@lysator.liu.se>

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	* NEWS: Update for 3.3.

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	* configure.ac: Bump package version to 3.3.
	(LIBNETTLE_MINOR): Bump library version to 6.3.
	(LIBHOGWEED_MINOR): Bump library version to 4.3.

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2016-09-05  Niels Möller  <nisse@lysator.liu.se>

	* curve25519.h (NETTLE_CURVE25519_RFC7748): New preprocessor
	constant.
	* nettle.texinfo: Document it.

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2016-09-03  Niels Möller  <nisse@lysator.liu.se>

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	* config.make.in (.SUFFIXES): Delete no longer used .p$(OBJEXT).

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	* sexp.h (TOKEN_CHAR): Delete macro and declaration of
	sexp_token_chars. They belong in tools/misc.h, not here.

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	* examples/ecc-benchmark.c (die): Deleted unused function.

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	* testsuite/testutils.h (US): New macro, for unsigned string
	literals.
	(LDATA): Use the US macro, to eliminate pointer signedness
	warnings.

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	* testsuite/eddsa-verify-test.c (test_eddsa): Use LDATA.
	* testsuite/pbkdf2-test.c (test_main): Likewise.
	* testsuite/pkcs1-test.c (test_main): Likewise.

	* testsuite/md5-compat-test.c (test_main): Use US macro.
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	* testsuite/sexp-test.c (test_main): Use const char * for assoc
	keys. Overlooked in 2016-08-16 change.

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	* testsuite/yarrow-test.c (test_main): Fix pointer
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	signednesss warnings.
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	* testsuite/sexp-format-test.c (test_main): Likewise.
	* testsuite/rsa-encrypt-test.c (test_main): Likewise.
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	* tools/nettle-lfib-stream.c (main): Likewise.
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	* tools/output.c (sexp_put_string): Likewise.
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	* testsuite/testutils.c (test_armor): Change ascii argument to
	const char *.
	* testsuite/base16-test.c (test_main): Use LDATA for the non-ascii
	argument to test_armor.
	* testsuite/base64-test.c (test_main): Likewise.

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	* tools/nettle-pbkdf2.c (main): Fix some pointer signedness warning.
	* tools/nettle-hash.c (hash_file): Likewise.
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	* examples/rsa-decrypt.c (process_file): Use memeql_sec to check
	the digest.

	* memeql-sec.c (memeql_sec): New public function, moved from...
	* ccm.c (memeql_sec): ... previous location.

	* memops.h: New header file, generalizing memxor.h.

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	* testsuite/memeql-test.c (test_main): New test case.
	(memeql_sec_for_test): Wrapper to get valgrind to check for
	side-channel silence.

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2016-08-29  Niels Möller  <nisse@lysator.liu.se>

	* sexp-format.c (strlen_u8): New helper function.
	(sexp_vformat): Use uint8_t * for strings instead of char *.

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	* examples/io.c (hash_file): Use uint8_t for buffer.

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	* sexp.c (sexp_iterator_check_type, sexp_iterator_check_types)
	(sexp_iterator_assoc): Use const char * for caller's expression
	types. Updated all callers.

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	* rsa2openpgp.c (rsa_keypair_to_openpgp): Added cast to const
	uint8_t *.

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	* pgp-encode.c (write_string): New helper function, replacing...
	(WRITE): ... deleted macro.

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	* examples/io.c (write_data): Renamed, and use const void * for
	the input data. Updated all callers.
	(write_string): ... old name.
	(write_file): Use const void * for the input data.

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	* examples/hogweed-benchmark.c: Use uint8_t for curve25519 values.
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	(bench_rsa_init): Use unsigned char for sexp strings.
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	(bench_dsa_init): Likewise.
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	(hash_string): Delete length argument, calling strlen instead.
	Cast string to const uint8_t *. Updated callers.
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	* examples/io.c (read_file): Use size_t for sizes, and uint8_t for
	the contents.

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	* dsa-sign.c (dsa_sign): Return failure if p is even, so that an
	invalid key doesn't result in a crash inside mpz_powm_sec.

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	* rsa-sign-tr.c (rsa_compute_root_tr): Return failure if any of p,
	q or n is even, to avoid crashing inside mpz_powm_sec. Invalid
	keys with even modulo are rejected by rsa_public_key_prepare and
	rsa_private_key_prepare, but some applications, notably gnutls,
	don't use them.

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2016-07-31  Niels Möller  <nisse@lysator.liu.se>

	* rsa.c (_rsa_check_size): Check that n is odd. Otherwise, using
	an invalid key may crash in mpz_powm_sec. Problem reported by
	Hanno Böck.

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2016-07-13  Niels Möller  <nisse@lysator.liu.se>

	* bignum.c (nettle_mpz_from_octets): Unconditionally use
	mpz_import.
	* gmp-glue.c (mpn_copyd, mpn_copyi, mpn_zero): Deleted
	compatibility definitions for older versions of GMP.
	* gmp-glue.h (mpn_sqr): Deleted compatibility definition.
	* testsuite/testutils.c (mpz_combit): Deleted compatibility
	definition.

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2016-07-12  Niels Möller  <nisse@lysator.liu.se>

	* configure.ac: Check for mpz_powm_sec, and require GMP-5.0 or
	later.
	* bignum.h (mpz_powm_sec): Fall back to plain mpz_powm for
	mini-gmp build.
	* dsa-sign.c (dsa_sign): Use mpz_powm_sec.
	* rsa-sign.c (rsa_compute_root): Likewise.
	* rsa-sign-tr.c (rsa_blind, rsa_compute_root_tr): Likewise.
	* rsa-blind.c (_rsa_blind): Likewise.

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2016-05-02  Niels Möller  <nisse@lysator.liu.se>

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	* nettle.texinfo: Update Curve25519 documentation.

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	* testsuite/curve25519-dh-test.c: Test that inputs bits which must
	be ignored really are ignored.

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	* curve25519-mul.c (curve25519_mul): Ignore top bit of the input x
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	coordinate, as required by RFC 7748.
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2016-03-30  Niels Möller  <nisse@lysator.liu.se>

	From Nikos Mavrogiannopoulos.
	* configure.ac: Change dll names to follow the libtool convention
	with only major version number in the name.

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	* twofish.c (gf_multiply): Change return value to uint32_t, to
	make shifting of the return value well defined, without any type
	casts. Fixes an undefined shift in compute_s, reported by Nikos
	Mavrogiannopoulos.
	(h_byte): Deleted type casts.

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	* blowfish.c (blowfish_encrypt, blowfish_decrypt): Use READ_UINT32
	macro. Fixes an undefined shift, reported by Nikos
	Mavrogiannopoulos.

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	From Nikos Mavrogiannopoulos.
	* configure.ac (HOGWEED_EXTRA_SYMBOLS): Add "mp_*", when building
	with mini-gmp.
	* des.c (des_weak_p): Check that the hash value is in the proper
	range before using it. Fixes an out-of-bounds read.

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2016-03-14  Niels Möller  <nisse@lysator.liu.se>

	* getopt.c (_getopt_internal_r): Fix c99-ism, move declarations to
	top of block. Reported by Henrik Grubbström.

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	* tools/input.c (sexp_get_string_length): Process advanced string
	syntax only when in advanced mode. Fixes an assertion failure
	reported by Hanno Böck, for input where advanced syntax is
	improperly wrapped inside transport syntax.

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	* tools/parse.c (sexp_parse): Fail with an error message for
	unexpected ']' characters. Fixes crash reported by Hanno Böck.
	Also handle SEXP_DISPLAY (internal error) explicitly, without a
	default clause.

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2016-01-28  Niels Möller  <nisse@lysator.liu.se>

	* Released nettle-3.2.

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2016-01-26  Niels Möller  <nisse@lysator.liu.se>

	* tools/nettle-pbkdf2.c (main): Fix handling of unrecognized
	options. Bug reported by Dongsheng Zhang. Display usage message
	and exit non-zero. Also added "Usage: "-prefix to the message.
	* tools/nettle-hash.c (usage): New function, extracted from main.
	(main): Analogous fix for unrecognized options.

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2016-01-23  Niels Möller  <nisse@lysator.liu.se>

	* nettle.texinfo: Set UPDATED-FOR to 3.2.

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2016-01-21  Niels Möller  <nisse@lysator.liu.se>

	* .gitlab-ci.yml: New file. Configuration for gitlab's continuous
	integration system.

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	* testsuite/dlopen-test.c (main): Mark arguments as UNUSED.

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	* testsuite/Makefile.in (clean): Delete dlopen-test.

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	* configure.ac: Bump package version, to nettle-3.2.
	(LIBNETTLE_MINOR, LIBHOGWEED_MINOR): Bump minor versions, to
	libnettle.so.6.2 and and libhogweed.so.4.2.

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2016-01-10  Niels Möller  <nisse@lysator.liu.se>

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	* base64-encode.c (encode_raw): Use const uint8_t * for the
	alphabet argument.

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	* nettle.texinfo (RSA): Document the rsa_pkcs1_verify and
	rsa_pkcs1_sign functions, and the new rsa_*_tr functions.

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2015-12-18  Niels Möller  <nisse@lysator.liu.se>

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	* testsuite/testutils.h: Fix include order, system headers before
	nettle headers. Always include version.h, needed by
	version-test.c. It was included indirectly via bignum.h, but only
	if configured with publickey support.

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	* configure.ac (IF_DLOPEN_TEST): Fixed shell conditional.

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	* testsuite/ecc-mod-test.c (test_main): Handle random seeding if
	NETTLE_TEST_SEED is set in the environment.

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2015-12-15  Niels Möller  <nisse@lysator.liu.se>

	* x86_64/ecc-384-modp.asm: Fixed carry propagation bug. Problem
	reported by Hanno Böck. Simplified the folding to always use
	non-negative carry, the old code attempted to add in a carry which
	could be either positive or negative, but didn't get that case
	right.

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2015-12-10  Niels Möller  <nisse@lysator.liu.se>

	* ecc-256.c (ecc_256_modp): Fixed carry propagation bug. Problem
	reported by Hanno Böck.
	(ecc_256_modq): Fixed another carry propagation bug.

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2015-11-23  Niels Möller  <nisse@lysator.liu.se>

	* nettle.texinfo: Document rsa_encrypt, rsa_decrypt and
	rsa_decrypt_tr. Text contributed by Andy Lawrence.

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2015-11-15  Niels Möller  <nisse@lysator.liu.se>

	* rsa.h (_rsa_blind, _rsa_unblind): Mark as deprecated.

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2015-09-17  Niels Möller  <nisse@lysator.liu.se>

	* rsa-md5-sign-tr.c (rsa_md5_sign_tr, rsa_md5_sign_digest_tr): New
	file, new functions.
	* rsa-sha1-sign-tr.c (rsa_sha1_sign_tr, rsa_sha1_sign_digest_tr):
	Likewise.
	* rsa-sha256-sign-tr.c (rsa_sha256_sign_tr)
	(rsa_sha256_sign_digest_tr): Likewise.
	* rsa-sha512-sign-tr.c (rsa_sha512_sign_tr)
	(rsa_sha512_sign_digest_tr): Likewise.
	* rsa.h: Added corresponding prototypes.
	* Makefile.in (hogweed_SOURCES): Added new files.

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	* testsuite/testutils.c (SIGN): Extend macro to test new
	functions, and the rsa_*_sign_digest functions. Updated callers.

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	* rsa-decrypt-tr.c (rsa_decrypt_tr): Use rsa_compute_root_tr.
	Mainly for simplicity and consistency, I'm not aware of any CRT
	fault attacks on RSA decryption.

	* testsuite/rsa-encrypt-test.c (test_main): Added test with
	invalid private key.

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	* rsa-sign-tr.c (rsa_compute_root_tr): New file and function.
	* rsa.h: Declare it.
	* rsa-pkcs1-sign-tr.c (rsa_pkcs1_sign_tr): Use rsa_compute_root_tr.
	(rsa_verify_res): Deleted, replaced by rsa_compute_root_tr.
	* testsuite/rsa-sign-tr-test.c (test_rsa_sign_tr): Check that
	signature argument is unchanged on failure.
	* Makefile.in (hogweed_SOURCES): Added rsa-sign-tr.c.

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	* testsuite/rsa-sign-tr-test.c: Drop include of nettle-internal.h.
	(test_main): Fix incorrect use of sizeof, and use LDATA macro.

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	* rsa-pkcs1-sign-tr.c (rsa_verify_res): New function.
	(rsa_pkcs1_sign_tr): Check result of private key operation, to
	protect against hardware or software errors leaking the private
	key.
	* testsuite/rsa-sign-tr-test.c: New testcase.

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2015-09-06  Niels Möller  <nisse@lysator.liu.se>

	* nettle.texinfo: Updated SHA3 documentation.

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

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	* testsuite/dlopen-test.c: New test program, exposing the problem
	with ifunc and RTLD_NOW.

	* testsuite/Makefile.in (TS_ALL): Conditionally add dlopen-test.
	(SOURCES): Added dlopen-test.c.
	(dlopen-test): New target, unlike other test programs, *not*
	linked with -lnettle.

	* configure.ac: Check for dlfcn.h and the dlopen function.
	(IF_DLOPEN_TEST): New substituted variable, true if dlopen is
	available and we are building a shared library.

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	* fat-setup.h: Disable use of ifunc, since it breaks dlopen with
	RTLD_NOW.

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

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	* NEWS: Started on entries for Nettle-3.2.

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

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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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	* ccm.c (memeql_sec): New function, more side-channel silent than
	memcmp.
	(ccm_decrypt_message): Use it.

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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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	* 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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	* nettle.texinfo: Document curve25519 and eddsa.

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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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	* 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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	* configure.ac (LIBHOGWEED_MAJOR): Undo latest bump, 4 should be
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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.

2015-01-26  Niels Möller  <nisse@lysator.liu.se>

	* 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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2015-01-25  Niels Möller  <nisse@lysator.liu.se>

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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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2015-01-21  Niels Möller  <nisse@lysator.liu.se>

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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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2015-01-20  Niels Möller  <nisse@lysator.liu.se>

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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.
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