ChangeLog 236 KB
Newer Older
1 2
2013-04-16  Niels Möller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
3 4 5
	* testsuite/umac-test.c (test_incr): New function.
	(test_main): Test nonce increment.

6 7 8 9 10
	* misc/umac/umac.py: UMAC reference implementation.
	* misc/umac/rijndael.py: AES implementation used by umac.py.
	* misc/umac/mkvectors: Script to generate UMAC test vectors.
	* misc/umac/vectors.out: Generated test vectors.

Niels Möller's avatar
Niels Möller committed
11 12 13 14 15 16
	* umac32.c (umac32_digest): Fix nonce increment, use INCREMENT
	macro.
	* umac64.c (umac64_digest): Likewise.
	* umac96.c (umac96_digest): Likewise.
	* umac128.c (umac128_digest): Likewise.

17 18
	* macros.h (INCREMENT): Allow size == 1.

Niels Möller's avatar
Niels Möller committed
19 20
2013-04-15  Niels Möller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
21 22
	* x86_64/umac-nh.asm: New file. 4.4 time speedup.

Niels Möller's avatar
Niels Möller committed
23 24
	* armv7/umac-nh-n.asm: New file. 2.0-2.3 time speedup.

Niels Möller's avatar
Niels Möller committed
25 26
	* testsuite/umac-test.c (test_align): Fixed memory leak.

Niels Möller's avatar
Niels Möller committed
27 28
2013-04-12  Niels Möller  <nisse@lysator.liu.se>

29 30
	* armv7/umac-nh.asm: New file. 2.4 time speedup.

Niels Möller's avatar
Niels Möller committed
31 32
	* armv7/machine.m4 (D0REG, D1REG): New macros.

33 34 35
	* configure.ac (asm_replace_list): Added umac-nh.asm and
	umac-nh-n.asm.

Niels Möller's avatar
Niels Möller committed
36 37 38
	* testsuite/umac-test.c: Test different alignments for the
	message.

39 40
2013-04-11  Niels Möller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
41 42 43
	* umac-nh-n.c (_umac_nh_n): Rewrote as a single pass over the
	message data.

Niels Möller's avatar
Niels Möller committed
44 45 46
	* examples/nettle-benchmark.c (time_umac): New function.
	(main): Call it.

47 48 49 50 51 52 53 54 55
	* umac-set-key.c (_umac_set_key): Drop byteswapping of l3_key2, it
	can be xored directly to the pad in native byteorder.
	* umac-l3.c (_umac_l3): Drop key_2 argument, let caller do that
	xor. Updated all callers.
	* umac32.c (umac32_digest): Adapt to l3 changes.
	* umac64.c (umac64_digest): Likewise.
	* umac96.c (umac96_digest): Likewise.
	* umac128.c (umac128_digest): Likewise.

Niels Möller's avatar
Niels Möller committed
56 57 58 59 60 61 62 63 64 65 66 67 68
	Initial implementation of umac.
	* umac.h: New file.
	* umac-nh.c: New file.
	* umac-nh-n.c: New file.
	* umac-poly64.c: New file.
	* umac-poly128.c: New file.
	* umac-l2.c: New file.
	* umac-l3.c: New file.
	* Makefile.in (nettle_SOURCES): Added umac source files.
	(HEADERS): Added umac.h.
	* testsuite/umac-test.c: New file.
	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added umac-test.c.

69 70 71 72 73 74
	* ecc-mul-a.c (ecc_mul_a): Avoid using mp_bitcnt_t, for
	compatibility with older GMP versions.
	* ecc-mul-g.c (ecc_mul_g): Likewise.
	* eccdata.c (ecc_mul_binary): Likewise.
	* sec-modinv.c (sec_modinv): Likewise.

75 76 77
	* x86_64/sha3-permute.asm: Go via memory for moves between general
	registers and xmm registers.

78 79 80 81 82 83
2013-04-06  Niels Möller  <nisse@lysator.liu.se>

	From Edgar E. Iglesias:
	* sha3.c (_sha3_update): Fix condition for when the block buffer
	is full.

84 85
2013-04-04  Niels Möller  <nisse@lysator.liu.se>

86 87 88
	* ecc-point.c (ecc_point_get): Allow NULL x or y, ignore
	corresponding coordinate.

89 90 91
	* nettle.texinfo (Elliptic curves): Document high-level ECDSA
	support.

92 93 94
	From Martin Storsjö. Fallback functions for older GMP releases.
	* gmp-glue.c (mpn_copyd, mpn_copyi, mpn_zero): New functions.
	* gmp-glue.h: Declare them.
95
	(mpn_sqr): Fallback macro.
96

97 98 99 100 101 102 103 104 105
	* gmp-glue.h (cnd_add_n, cnd_sub_n): Moved here, define in terms
	of mpn_cnd_add_n and mpn_sub_n if available, otherwise in terms of
	mpn_addmul_1 and mpn_submul_1. This seems to be an improvement for
	subtraction, but more questionable for addition.

	* ecc-internal.h: Include gmp-glue.h. Deleted corresponding
	include in all files using ecc-internal.h.
	(cnd_add_n, cnd_sub_n): Moved from here.

Niels Möller's avatar
Niels Möller committed
106 107
2013-04-03  Niels Möller  <nisse@lysator.liu.se>

108 109 110 111 112 113
	* ecc-point-mul-g.c (ecc_point_mul_g): New file and function.
	* ecc-point-mul.c (ecc_point_mul): New file and function.
	* ecc.h: Updated declarations and name mangling.
	* Makefile.in (hogweed_SOURCES): Added ecc-point-mul.c and
	ecc-point-mul-g.c.

Niels Möller's avatar
Niels Möller committed
114 115 116
	* testsuite/salsa20-test.c (test_main): Tests for salsa20r12,
	contributed by Nikos Mavrogiannopoulos.

Niels Möller's avatar
Niels Möller committed
117 118 119 120
2013-03-26  Niels Möller  <nisse@lysator.liu.se>

	* armv7/salsa20-core-internal.asm: New file. 45% speedup.

121 122
2013-03-25  Niels Möller  <nisse@lysator.liu.se>

123 124 125 126 127 128 129 130 131 132
	From Martin Storsjö:
	* examples/timing.c: New file, extracted from nettle-benchmark.c.
	* examples/timing.h: New file.
	* examples/Makefile.in (SOURCES): Added timing.c.
	(DISTFILES): Added timing.h.
	(BENCH_OBJS, ECC_BENCH_OBJS, HOGWEED_BENCH_OBJS): Added timing.o.
	* examples/nettle-benchmark.c: Use timing.h.
	* examples/hogweed-benchmark.c: Likewise.
	* examples/ecc-benchmark.c: Likewise.

Niels Möller's avatar
Niels Möller committed
133 134 135 136 137
	From Nikos Mavrogiannopoulos:
	* salsa20r12-crypt.c (salsa20r12_crypt): New file and function.
	* salsa20.h (salsa20r12_crypt): Declare.
	* Makefile.in (nettle_SOURCES): Added salsa20r12-crypt.c.

138
	From Martin Storsjö:
139 140
	* examples/hogweed-benchmark.c: Include local headers.
	* testsuite/ecdsa-keygen-test.c: Likewise.
141
	* x86_64/sha3-permute.asm: Workaround for Apple's assembler; write
142
	movq instructions as movd.
143

144 145 146
	* Makefile.in (hogweed_PURE_OBJS): Don't include OPT_ASM_SOURCES
	twice.

Niels Möller's avatar
Niels Möller committed
147 148
2013-03-15  Niels Möller  <nisse@lysator.liu.se>

149 150
	* armv7/sha3-permute.asm: New file. 4.5 time speedup.

Niels Möller's avatar
Niels Möller committed
151 152
	* armv7/machine.m4 (QREG): New macro.

Niels Möller's avatar
Niels Möller committed
153 154
2013-03-14  Niels Möller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
155 156 157 158
	* configure.ac (asm_replace_list): Added sha3-permute.asm,
	revering 2012-12-30 change. 34% speedup on intel i5, from 2190
	cycles for the C implementation down to 1630.

Niels Möller's avatar
Niels Möller committed
159 160 161
	* armv7/sha512-compress.asm: Optimized. Keep expanded data in
	registers, exploit parallelism. Another 70% speedup.

Niels Möller's avatar
Niels Möller committed
162 163 164
	* testsuite/sha512-test.c (test_main): Additional test vectors,
	including some longer than 128 bytes.

Niels Möller's avatar
Niels Möller committed
165 166
2013-03-13  Niels Möller  <nisse@lysator.liu.se>

167 168 169
	* armv7/sha512-compress.asm: New file, using neon instructions.
	2.3 time speedup.

Niels Möller's avatar
Niels Möller committed
170 171 172 173
	* configure.ac (asm_replace_list): Added sha512-compress.asm.
	* x86_64/machine.m4 (OFFSET64): New macro.
	* x86_64/sha512-compress.asm: New file, 20% speedup.

174 175 176
	* sha512-compress.c (ROUND): Eliminated a temporary, analogous to
	sha256 change below.

Niels Möller's avatar
Niels Möller committed
177 178 179
	* x86_64/sha256-compress.asm: New file, 16% speedup (benchmarked
	on intel i5).

180 181
2013-03-11  Niels Möller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
182 183 184 185
	* armv7/sha256-compress.asm: New file, 25% speedup.

	* configure.ac (asm_replace_list): Added sha256-compress.asm.

186 187
	* sha256-compress.c (ROUND): Eliminated a temporary.

Niels Möller's avatar
Niels Möller committed
188 189
	* armv7/sha1-compress.asm: New file, 9% speedup.

190 191 192
	* testsuite/testutils.c (test_hash): Test different alignments for
	the hash input.

Niels Möller's avatar
Niels Möller committed
193 194 195 196 197 198
2013-03-08  Niels Möller  <nisse@lysator.liu.se>

	* armv7/aes-decrypt-internal.asm: New file, 15% speedup.
	* armv7/aes-encrypt-internal.asm: New file, 25% speedup.
	* armv7/aes.m4: New file.

199 200
2013-03-07  Niels Möller  <nisse@lysator.liu.se>

201 202
	* gmp-glue.c (mpz_limbs_cmp): Don't use PTR and SIZ macros.

Niels Möller's avatar
Niels Möller committed
203 204 205 206 207 208 209 210 211 212 213 214
	* Makefile.in (aesdata, desdata, twofishdata, shadata, gcmdata)
	(eccdata): Arrange for compiling these programs for running on the
	build system, also when cross compiling everything else.

	* config.make.in (CC_FOR_BUILD, EXEEXT_FOR_BUILD): New variables.

	* configure.ac: Use GMP_PROG_CC_FOR_BUILD and
	GMP_PROG_EXEEXT_FOR_BUILD.

	* aclocal.m4 (GMP_PROG_CC_FOR_BUILD, GMP_PROG_CC_FOR_BUILD_WORKS)
	(GMP_PROG_EXEEXT_FOR_BUILD): New macros, based on GMP's.

215 216 217 218 219 220 221 222 223 224 225 226 227 228
	* aesdata.c: Deleted includes of config.h and nettle-types.h. Use
	unsigned char and unsigned long instead of stdint.h types.

	* desdata.c: Deleted includes of config.h and desCode.h.
	(main): Return 1 on invalid argument. Don't use ROR macro. Use
	unsigned long instead of uint32_t, and make it work if unsigned
	long is larger than 32 bits.

	* gcmdata.c: Deleted include of config.h and use UNUSED macro.
	* shadata.c: Likewise.

	* twofishdata.c: Deleted include of nettle-types.h. Use unsigned
	char instead of stdint.h types.

229 230
	* x86_64/ecc-521-modp.asm: New file. 2.4 time speedup.

231 232
2013-03-06  Niels Möller  <nisse@lysator.liu.se>

233
	* x86_64/ecc-384-modp.asm: New file, 3 time speedup.
234
	* x86_64/ecc-256-redc.asm: New file, 2.5 time speedup.
235 236 237
	* x86_64/ecc-224-modp.asm: New file, 5 time speedup over C
	version.

Niels Möller's avatar
Niels Möller committed
238 239 240 241 242 243 244
2013-03-05  Niels Möller  <nisse@lysator.liu.se>

	* configure.ac (asm_optional_list): Added ecc-521-modp.asm.
	* ecc-521.c: Check HAVE_NATIVE_ecc_521_modp, and use native
	version if available.
	* armv7/ecc-521-modp.asm: New file, 2 time speedup over C version.

Niels Möller's avatar
Niels Möller committed
245 246 247 248 249 250 251 252
2013-03-04  Niels Möller  <nisse@lysator.liu.se>

	* configure.ac (asm_optional_list): Added ecc-384-modp.asm. Deleted
	bogus reference to $asm_search_list.
	* ecc-384.c: Check HAVE_NATIVE_ecc_384_modp, and use native
	version if available.
	* armv7/ecc-384-modp.asm: New file, 3 time speedup over C version.

253 254 255 256
2013-03-03  Niels Möller  <nisse@lysator.liu.se>

	* ecc-256.c: Fixed definition of USE_REDC.

257 258
2013-03-01  Niels Möller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
259 260 261 262
	* ecc-256.c: Check HAVE_NATIVE_ecc_256_redc, and use native
	version if available.
	* armv7/ecc-256-redc.asm: New file, 4 time speedup over C version.

263 264
	* testsuite/ecc-redc-test.c: Increased test count.

Niels Möller's avatar
Niels Möller committed
265 266 267 268 269
	* ecc-224.c: Check HAVE_NATIVE_ecc_224_modp, and use native
	version if available.
	* armv7/ecc-224-modp.asm: New file, 4.5 time speedup over C
	version.

270 271 272
	* configure.ac (asm_optional_list): Added ecc-224-modp.asm.
	(OPT_ASM_SOURCES): Fixed assignment.

Niels Möller's avatar
Niels Möller committed
273 274
2013-02-28  Niels Möller  <nisse@lysator.liu.se>

275 276 277
	* x86_64/ecc-192-modp.asm: Reorganized to reduce number of
	additions. Use setc instruction.

278 279 280
	* examples/Makefile.in: Let $(HOGWEED_TARGETS) depend on
	../libhogweed.a.

Niels Möller's avatar
Niels Möller committed
281 282 283
	* armv7/ecc-192-modp.asm: New file. 2.5 time speedup over C
	version.

284 285
2013-02-27  Niels Möller  <nisse@lysator.liu.se>

286 287
	* ecc-192.c: Check HAVE_NATIVE_ecc_192_modp, and use native
	version if available.
Niels Möller's avatar
Niels Möller committed
288
	(ecc_192_modp): Fixed carry handling bug in 32-bit version.
289

Niels Möller's avatar
Niels Möller committed
290 291
	* x86_64/ecc-192-modp.asm: New file. 3.8 times speedup over C
	version.
292

293 294 295 296 297 298 299 300
	* configure.ac (OPT_ASM_SOURCES): New substituted variable.
	(asm_replace_list, asm_optional_list): New variables. For files in
	asm_optional_list, also add them to OPT_ASM_SOURCES and define
	appropriate HAVE_NATIVE_* symbols found.

	* Makefile.in (OPT_ASM_SOURCES): New variable. Used for setting
	hogweed_OBJS and hogweed_PURE_OBJS.

301 302
	* testsuite/ecc-mod-test.c: Increased test count.

303 304 305
	* ecc-384.c (ecc_384_modp): Fixed typo which broke carry handling
	in the 64-bit version.

Niels Möller's avatar
Niels Möller committed
306 307 308
	* examples/ecc-benchmark.c (bench_add_jjj): Typo fix, benchmark
	the right function.

309 310 311 312 313 314
	* gmp-glue.h: Check if GMP provides mpz_limbs_read (expected in
	next release).
	* gmp-glue.c: Use GMP's mpz_limbs_read and friends if available.
	Renamed all functions for consistency with GMP. Updated all
	callers.

315 316
2013-02-20  Niels Möller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
317 318 319 320 321 322 323
	* examples/Makefile.in (HOGWEED_TARGETS): Added
	hogweed-benchmark$(EXEEXT).
	(SOURCES): Added hogweed-benchmark.c.
	(hogweed-benchmark$(EXEEXT)): New target.

	* examples/hogweed-benchmark.c: New file.

324 325 326 327 328 329
	* ecdsa-keygen.c (ecdsa_generate_keypair): New file and function.
	* Makefile.in (hogweed_SOURCES): Added ecdsa-keygen.c.
	* testsuite/ecdsa-keygen-test.c: New testcase.
	* testsuite/Makefile.in (TS_HOGWEED_SOURCES): Added
	ecdsa-keygen-test.c.

330 331
	* nettle-internal.h (TMP_ALLOC): Added missing parentheses.

332 333
2013-02-18  Niels Möller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
334 335 336 337 338 339
	* testsuite/ecdsa-verify-test.c: New testcase.
	* testsuite/ecdsa-sign-test.c: New testcase.
	* testsuite/Makefile.in (TS_HOGWEED_SOURCES): Added
	ecdsa-sign-test.c and ecdsa-verify-test.c.
	* testsuite/testutils.h: Include ecdsa.h.
	(SHEX): Deleted const cast.
340

341 342 343 344 345 346 347 348 349 350 351 352 353 354 355
	* ecc-point.c: New file, struct ecc_point abstraction.
	* ecc-scalar.c: New file, struct ecc_scalar abstraction.
	* ecc-random.c (ecc_modq_random, ecc_scalar_random): New file, new
	functions.
	* ecc-hash.c (ecc_hash): New file and function.
	* ecc-ecdsa-sign.c: New file, low-level signing interface.
	* ecc-ecdsa-verify.c: New file, low-level ecdsa verify.
	* ecdsa-sign.c: (ecdsa_sign): New file and function.
	* ecdsa-verify.c (ecdsa_verify): New file and function.
	* ecdsa.h: New header file.
	* ecc.h: Declare ecc_point and ecc_scalar functions.
	* ecc-internal.h: Added declarations.
	* Makefile.in (hogweed_SOURCES): Added new source files.
	(HEADERS): Added ecdsa.h.

Niels Möller's avatar
Niels Möller committed
356 357 358 359 360 361
	* gmp-glue.c (_mpz_set_mpn): New convenience function.
	(_mpn_set_base256): New function.
	(_gmp_alloc_limbs): New function.
	(_gmp_free_limbs): New function.
	* gmp-glue.h: Corresponding declarations. Include nettle-stdinh.h.

362 363 364 365 366 367 368
	* examples/Makefile.in (HOGWEED_TARGETS): Renamed, was
	RSA_TARGETS. Added ecc-benchmark$(EXEEXT).
	(SOURCES): Added ecc-benchmark.c.
	(ecc-benchmark$(EXEEXT)): New target.

	* examples/ecc-benchmark.c: New file, benchmarking ecc primitives.

369 370
2013-02-15  Niels Möller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
371 372 373 374 375 376 377 378 379
	Integrate ecc_mul_a.
	* ecc-a-to-j.c: New file.
	* ecc-add-jjj.c: New file.
	* ecc-mul-a.c: New file.
	* Makefile.in (hogweed_SOURCES): Added new files.
	* testsuite/ecc-mul-a-test.c: New file.
	* testsuite/Makefile.in (TS_HOGWEED_SOURCES): Added
	ecc-mul-a-test.c.

380 381 382
	* testsuite/testutils.c: Removed redundant includes.
	(die): New function.

Niels Möller's avatar
Niels Möller committed
383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402
	Integrate ecc_mul_g.
	* ecc.h: New file.
	* ecc-j-to-a.c: New file.
	* ecc-size.c: New file.
	* ecc-add-jja.c: New file.
	* ecc-dup-jj.c: New file.
	* ecc-mul-g.c: New file.
	* sec-tabselect.c: New file.
	* Makefile.in (hogweed_SOURCES): Added new files.
	(HEADERS): Added ecc.h
	* testsuite/ecc-mul-g-test.c: New file.
	* testsuite/Makefile.in (TS_HOGWEED_SOURCES): Added
	ecc-mul-g-test.c.
	* testsuite/testutils.c (xalloc_limbs): New function.
	(test_mpn): New function.
	(test_ecc_point): New function.
	(test_ecc_mul_a): New function.
	(test_ecc_mul_j): New function.
	* testsuite/testutils.h: Corresponding declarations.

Niels Möller's avatar
Niels Möller committed
403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432
	Integrate ECC internals.
	* ecc-curve.h: New file.
	* ecc-internal.h: New file.
	* cnd-copy.c: New file.
	* ecc-192.c: New file.
	* ecc-224.c: New file.
	* ecc-256.c: New file.
	* ecc-384.c: New file.
	* ecc-521.c: New file.
	* ecc-generic-modp.c: New file.
	* ecc-generic-modq.c: New file.
	* ecc-generic-redc.c: New file.
	* ecc-mod.c: New file.
	* ecc-modp.c: New file.
	* ecc-modq.c: New file.
	* sec-add-1.c: New file.
	* sec-modinv.c: New file.
	* sec-sub-1.c: New file.
	* Makefile.in (hogweed_SOURCES): Added new files.
	(HEADERS): Added ecc-curve.h.
	(DISTFILES): Added ecc-internal.h.
	* testsuite/ecc-mod-test.c: New file.
	* testsuite/ecc-modinv-test.c: New file.
	* testsuite/ecc-redc-test.c: New file.
	* testsuite/testutils.c (ecc_curves): New constant array.
	* testsuite/testutils.h: Include ecc-related headers. Declare
	ecc_curves array.
	* testsuite/Makefile.in (TS_HOGWEED_SOURCES): Added ecc-mod-test.c
	ecc-modinv-test.c ecc-redc-test.c.

433 434 435 436
	* gmp-glue.c: New file, mpn <-> mpz conversions.
	* gmp-glue.h: New file.
	* Makefile.in: Added to hogweed_SOURCES and DISTFILES, respectively.

437 438 439 440
	* eccdata.c: New program, for generating ECC-related tables.
	* Makefile.in (ecc-192.h, ecc-224.h, ecc-256.h, ecc-384.h)
	(ecc-512.h): New generated files.

Niels Möller's avatar
Niels Möller committed
441 442
2013-02-19  Niels Möller  <nisse@lysator.liu.se>

443 444 445
	* armv7/memxor.asm (memxor): Software pipelining for the aligned
	case. Runs at 6 cycles (0.5 cycles per byte). Delayed push of
	registers until we know how many registers we need.
Niels Möller's avatar
Niels Möller committed
446
	(memxor3): Use 3-way unrolling also for aligned memxor3.
447
	Runs at 8 cycles (0.67 cycles per byte)
Niels Möller's avatar
Niels Möller committed
448

449 450
2013-02-14  Niels Möller  <nisse@lysator.liu.se>

451 452 453
	* configure.ac: Find GMP's GMP_NUMB_BITS. Substitute in Makefile.
	* config.make.in (GMP_NUMB_BITS): New variable.

454 455 456 457
	* examples/rsa-keygen.c (uint_arg): New function.
	(main): New options -s and -e, to specify key size and public
	exponent. Increased default key size to 2048.

458 459 460 461 462
2013-02-12  Niels Möller  <nisse@lysator.liu.se>

	* armv7/memxor.asm (memxor): Optimized aligned case, using 3-way
	unrolling.

463 464
2013-02-06  Niels Möller  <nisse@lysator.liu.se>

465 466
	* armv7/memxor.asm (memxor, memxor3): Optimized aligned case, now
	runs at 0.75 cycles/byte.
467

468 469 470 471
	* armv7/README: New file.
	* armv7/machine.m4: New (empty) file.
	* armv7/memxor.asm: Initial assembly implementation.

472 473
	* config.m4.in: Substitute ASM_TYPE_PROGBITS as TYPE_PROGBITS.

474 475 476 477 478 479 480 481 482 483
	* config.make.in: Added .s to the suffix list.

	* Makefile.in (.asm.s): Use a separate make target for .asm
	preprocessing. Include asm.d, which the corresponding
	dependencies.

	* configure.ac (asm_file_list): Collect assembly files into this
	variable.
	(asm.d): Make config.status write dependencies for .s files into
	asm.d.
484
	(ASM_ALIGN_LOG): Set to "no" when appropriate.
485 486 487 488
	(ASM_TYPE_FUNCTION): Default to "@function".
	(ASM_TYPE_PROGBITS): New substituted variable, set in the same way
	as ASM_TYPE_FUNCTION.
	(ASM_MARK_NOEXEC_STACK): Use TYPE_PROGBITS.
489
	(asm_path): Set up asm_path for armv7.
490

491 492 493
	* asm.m4: Use changecom to disable m4 quoting. Use divert to
	suppress output.

494 495 496 497 498 499 500
2013-02-05  Niels Möller  <nisse@lysator.liu.se>

	* testsuite/rsa-keygen-test.c (test_main): Updated expected
	signatures, after the nettle_mpz_random change below.
	* testsuite/dsa-test.c (test_main): Likewise. Also fixed the
	dsa256 test to actually use the expected signature.

501 502 503 504 505
2013-01-31  Niels Möller  <nisse@lysator.liu.se>

	* bignum-random.c (nettle_mpz_random): Increased number of extra
	bits to 64, following FIPS 186-3.

506 507 508 509
2013-01-12  Niels Möller  <nisse@lysator.liu.se>

	* configure.ac: Use AC_LANG_SOURCE.

510 511
2013-01-02  Niels Möller  <nisse@lysator.liu.se>

512 513 514
	* configure.ac (LIBNETTLE_MINOR): Bumped library version, to 4.5.
	(LIBHOGWEED_MINOR): And to 2.3.

515 516 517 518 519
	* examples/Makefile.in: Explicit rules for building objects in
	parent directory.
	* tools/Makefile.in: Likewise.
	* testsuite/Makefile.in: Likewise.

520 521
2013-01-01  Niels Möller  <nisse@lysator.liu.se>

522 523 524
	* nettle.texinfo (Recommended hash functions): Document additional
	sha3 functions.

525 526 527
	* examples/nettle-benchmark.c (main): Benchmark additional sha3
	functions.

528 529
2012-12-30  Niels Möller  <nisse@lysator.liu.se>

530 531 532 533 534 535 536 537 538 539 540 541 542
	* sha3-224.c, sha3-224-meta.c: New files.
	* sha3-384.c, sha3-384-meta.c: New files.
	* sha3-512.c, sha3-512-meta.c: New files.
	* sha3.h: Prototypes for sha3 with sizes 224, 384 and 512.
	* nettle-meta.h: Declare nettle_sha3_224, nettle_sha3_384 and
	nettle_sha3_512.
	* Makefile.in (nettle_SOURCES): Added new sha3 files.

	* testsuite/sha3-224-test.c: New file.
	* testsuite/sha3-384-test.c: New file.
	* testsuite/sha3-512-test.c: New file.
	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added new sha3 test files.

543 544
	* configure.ac: Disabled use of sha3-permute.asm.

545 546 547 548 549 550 551 552
2012-12-20  Niels Möller  <nisse@lysator.liu.se>

	From Tim Rühsen:
	* testsuite/des-compat-test.c (pt): Use proper prototype, use
	const.
	* testsuite/testutils.c (test_dsa_key): Deleted spurious
	semicolon.

553 554
2012-12-15  Niels Möller  <nisse@lysator.liu.se>

555 556 557 558 559 560
	Based on a patch from Alon Bar-Lev:
	* Makefile.in (LIBTARGETS, SHLIBTARGET): Define as empty if static
	or shared libraries, respectively, are disabled.
	(TARGETS): Deleted @IF_SHARED@ conditional, now in the definition
	of SHLIBTARGET.

561
	From Alon Bar-Lev:
562
	* configure.ac: Check for ar program. New option --disable-static.
563 564
	* config.make.in (AR): Use configured value.

565 566 567
2012-12-13  Niels Möller  <nisse@lysator.liu.se>

	* x86_64/sha3-permute.asm: Rewrote, to keep all state in
Niels Möller's avatar
Niels Möller committed
568
	registers. 2400 cycles on x86_64, only slightly faster than the
569 570
	current C code.

571 572 573 574 575
2012-12-09  Niels Möller  <nisse@lysator.liu.se>

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

576 577 578 579 580 581 582 583 584 585 586
2012-12-04  Niels Möller  <nisse@lysator.liu.se>

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

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

587 588
2012-12-03  Niels Möller  <nisse@lysator.liu.se>

589 590 591
	* sha3-permute.c (sha3_permute): Optimized, to reduce number of
	passes over the data. 20% speedup on x86_64, 4700 cycles.

Niels Möller's avatar
Niels Möller committed
592 593 594 595 596
	* configure.ac: Added sha3-permute.asm.

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

597 598 599 600
	* nettle.texinfo (Hash functions): Split into several sections,
	separating recommended hash functions and legacy hash functions.
	Document sha3-256.

601 602
2012-12-02  Niels Möller  <nisse@lysator.liu.se>

603 604
	Split sha.h into new files sha1.h and sha2.h. Replaced all
	internal usage of sha.h in all files.
605 606 607 608 609
	* sha.h: Kept for compatibility, just includes both new files.
	* sha1.h: New file.
	* sha2.h: New file.
	* Makefile.in (HEADERS): Added sha1.h and sha2.h.

610 611 612 613 614 615
2012-11-28  Niels Möller  <nisse@lysator.liu.se>

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

Niels Möller's avatar
Niels Möller committed
616 617
2012-11-15  Niels Möller  <nisse@lysator.liu.se>

618 619 620
	* sha3-permute.c (sha3_permute): Use ULL suffix on round
	constants. Avoid passing shift count 0 to ROTL64.

621 622
	* sha3.c (sha3_absorb): Fixed big-endian code. Need macros.h.

Niels Möller's avatar
Niels Möller committed
623 624
	* macros.h (LE_READ_UINT64): New macro.

Niels Möller's avatar
Niels Möller committed
625 626
2012-11-13  Niels Möller  <nisse@lysator.liu.se>

627 628 629 630
	* sha3-permute.c (sha3_permute): Micro optimizations. Partial
	unrolling. Use lookup table for the permutation. On an x86_64,
	execution time reduced from appr. 13000 cycles to appr. 6000.

Niels Möller's avatar
Niels Möller committed
631 632 633 634 635
	* examples/nettle-benchmark.c (TIME_CYCLES): New macro.
	(bench_sha1_compress, bench_salsa20_core): Use it.
	(bench_sha3_permute): New function.
	(main): Call bench_sha3_permute.

636 637
2012-11-12  Niels Möller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
638 639
	* examples/nettle-benchmark.c (main): Benchmark sha3_256.

Niels Möller's avatar
Niels Möller committed
640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656
	* sha3-permute.c: New file. Permutation function for sha3, aka
	Keccak.
	* sha3.h: New header file.
	* sha3.c: New file, absorption and padding for sha3.
	* sha3-256.c: New file.
	* sha3-256-meta.c: New file.
	* nettle-meta.h (nettle_sha3_256): Declare.
	* Makefile.in (nettle_SOURCES): Added sha3 files.
	(HEADERS): Added sha3.h.
	* testsuite/sha3.awk: New file. Script to extract test vectors.
	* testsuite/sha3-256-test.c: New file.
	* testsuite/sha3-permute-test.c: New file.
	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added
	sha3-permute-test.c and sha3-256-test.c.
	(DISTFILES): Added sha3.awk.
	* testsuite/.test-rules.make: Added sha3 targets.

657 658 659 660 661 662
	* macros.h (LE_WRITE_UINT64): New macro.
	* write-le64.c (_nettle_write_le64): New file and function.
	* nettle-write.h (_nettle_write_le64): Declare. Also deleted
	declaration of non-existent _nettle_write_be64.
	* Makefile.in (nettle_SOURCES): Added write-le64.c.

663 664 665
	* macros.h (ROTL64): New macro, moved from...
	* sha512-compress.c (ROTL64): ... old location, deleted.

666 667 668 669 670 671 672 673
	* serpent-internal.h [HAVE_NATIVE_64_BIT] (DROTL32): Renamed from...
	(ROTL64): ... old name.
	(DRSHIFT32): Renamed from ...
	(RSHIFT64): ... old name.
	* serpent-encrypt.c (LINEAR_TRANSFORMATION64): Updated for above
	renames.
	* serpent-decrypt.c (LINEAR_TRANSFORMATION64_INVERSE): Likewise.

674 675 676 677 678
2012-11-11  Niels Möller  <nisse@lysator.liu.se>

	From Nikos Mavrogiannopoulos:
	* nettle.texinfo (Hash functions): Added documentation for
	gosthash94.
679
	* examples/nettle-benchmark.c (main): Benchmark gosthash94.
680

Niels Möller's avatar
Niels Möller committed
681 682 683 684 685
2012-11-10  Niels Möller  <nisse@lysator.liu.se>

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

686 687 688 689 690 691 692 693 694 695 696 697 698 699 700
2012-11-08  Niels Möller  <nisse@lysator.liu.se>

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

701 702 703 704 705 706
2012-10-29  Niels Möller  <nisse@lysator.liu.se>

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

707 708 709 710 711 712
2012-10-29  Niels Möller  <nisse@lysator.liu.se>

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

713 714
2012-10-27  Niels Möller  <nisse@lysator.liu.se>

715 716 717 718 719 720
	* testsuite/Makefile.in (TS_SOURCES, CXX_SOURCES): Include sources
	unconditionally.
	(TS_CXX): Moved @IF_CXX@ conditional here.
	(DISTFILES): Use $(SOURCES), which now includes all C source
	files. testutils.c was lost in a the 2012-09-20 change.

721 722 723 724 725 726
	* x86_64/salsa20-crypt.asm: Include x86_64/salsa20.m4.
	Make all exits go via .Lend and W64_EXIT.

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

727 728 729 730 731
2012-10-26  Niels Möller  <nisse@lysator.liu.se>

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

732 733 734 735 736 737
2012-10-03  Niels Möller  <nisse@lysator.liu.se>

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

738 739 740 741 742 743 744 745 746
2012-09-23  Niels Möller  <nisse@lysator.liu.se>

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

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

747 748
2012-09-21  Niels Möller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
749 750 751
	* pbkdf2.c (pbkdf2): assert that iterations > 0. Reorganized
	loops.

752 753 754
	* nettle.texinfo (Cipher functions): Stress that the salsa20 hash
	function is not suitable as a general hash function.

755 756 757 758 759 760 761 762 763
2012-09-20  Simon Josefsson  <simon@josefsson.org>

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

764 765
2012-09-20  Niels Möller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
766 767 768 769 770 771 772
	* pbkdf2.c (pbkdf2): Reordered arguments, for consistency.
	* pbkdf2.h (PBKDF2): Analogous reordering.
	* testsuite/pbkdf2-test.c: Adapted to new argument order. Also use
	LDATA for the salt.
	* nettle.texinfo (Key derivation functions): Updated documented
	pbkdf2 prototype.

773 774 775
	* testsuite/Makefile.in (VALGRIND): New variable, to make valgrind
	checking easier.

776 777 778 779 780 781
	* configure.ac: New substitution IF_CXX, replacing CXX_TESTS.
	(dummy-dep-files): Handle .cxx files.

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

Simon Josefsson's avatar
Simon Josefsson committed
782 783
2012-09-19  Niels Möller  <nisse@lysator.liu.se>

Tim Ruehsen's avatar
Tim Ruehsen committed
784 785 786 787
	From Tim Rühsen:
	* examples/rsa-encrypt.c (main): Added missing mpz_clear.
	* examples/rsa-keygen.c (main): Added missing deallocation.

788 789 790
	* testsuite/meta-hash-test.c (test_main): Validate
	NETTLE_MAX_HASH_DIGEST_SIZE.

Simon Josefsson's avatar
Simon Josefsson committed
791 792 793 794 795 796 797 798 799 800 801 802 803 804 805
	* pbkdf2.h (PBKDF2): New macro.
	* testsuite/pbkdf2-test.c: Use it.

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

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

806 807
2012-09-16  Niels Möller  <nisse@lysator.liu.se>

808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851
	* testsuite/: Overhaul of testsuite, affecting almost all files.
	+ Use struct tstring for allocated strings, and deallocate before
	exit.
	+ Changed most test functions to take struct tstring as arguments.
	+ Made all test_main return on success.

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

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

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

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

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

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

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

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

852 853 854 855
	* realloc.c (nettle_realloc): Only call libc realloc if length >
	0, otherwise call free. Fixes a small memory leak.
	(nettle_xrealloc): Likewise.

856 857 858
	* run-tests (test_program): Don't quote $EMULATOR; allow it to
	expand to program and arguments (e.g., valgrind).

859 860 861 862
	* tools/pkcs1-conv.c (convert_public_key): Added missing calls to
	dsa_public_key_clear and rsa_public_key_clear.
	(main): Added missing nettle_buffer_clear.

Tim Ruehsen's avatar
Tim Ruehsen committed
863 864
2012-09-10  Niels Möller  <nisse@lysator.liu.se>

865 866 867
	* examples/eratosthenes.c (main): Explicitly deallocate storage
	before exit.

Niels Möller's avatar
Niels Möller committed
868 869 870
	* examples/io.c (read_file): Explicitly treat an empty file as an
	error. Rearrange loop, check for short fread return value.

Niels Möller's avatar
Niels Möller committed
871 872 873
	* desdata.c: Don't declare printf, include <stdio.h> instead. Also
	deleted casts of printf return value.

Tim Ruehsen's avatar
Tim Ruehsen committed
874
	From Tim Rühsen:
875
	* examples/nettle-benchmark.c (die): Use PRINTF_STYLE attribute.
Tim Ruehsen's avatar
Tim Ruehsen committed
876 877 878
	* pgp-encode.c (pgp_put_rsa_sha1_signature): Deleted unused variable.
	* rsa2openpgp.c (rsa_keypair_to_openpgp): Likewise.
	* examples/base16enc.c (main): Deleted useless allocations.
Tim Ruehsen's avatar
Tim Ruehsen committed
879

880 881 882 883 884 885 886 887 888
2012-09-07  Niels Möller  <nisse@lysator.liu.se>

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

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

Sam Thursfield's avatar
Sam Thursfield committed
889 890 891 892 893 894 895 896
2012-08-22  Niels Möller  <nisse@lysator.liu.se>

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

897 898 899 900 901
2012-07-12  Niels Möller  <nisse@lysator.liu.se>

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

Niels Möller's avatar
Niels Möller committed
902 903
2012-07-07  Niels Möller  <nisse@lysator.liu.se>

904 905
	Copyright headers: Updated FSF address. Patch from David Woodhouse.

906 907 908
	* examples/Makefile.in (BENCH_LIBS): Added -lm, needed for the
	ldexp function. Reported by Anthony G. Basile.

Niels Möller's avatar
Niels Möller committed
909 910
	* configure.ac: Changed version number to 2.6.

Niels Möller's avatar
Niels Möller committed
911 912
	* Released nettle-2.5.

913 914 915 916 917 918
2012-07-05  Niels Möller  <nisse@lysator.liu.se>

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

Niels Möller's avatar
Niels Möller committed
919 920
2012-07-03  Niels Möller  <nisse@lysator.liu.se>

921 922 923 924
	* aclocal.m4 (LSH_FUNC_ALLOCA): In the config.h boilerplate,
	include malloc.h if it exists, also when compiling with gcc.
	Needed for cross-compiling with --host=i586-mingw32msvc.

925
	* examples/base16dec.c: Don't #include files using <nettle/...>,
926 927
	we don't want to pick up installed versions. On windows, include
	<fcntl.h>, needed for _setmode.
928 929 930 931
	* examples/base16enc.c: Likewise.
	* examples/base64dec.c: Likewise.
	* examples/base64enc.c: Likewise

Niels Möller's avatar
Niels Möller committed
932 933
	* nettle.texinfo (Cipher functions): Document Salsa20.

934 935
2012-06-25  Niels Möller  <nisse@lysator.liu.se>

936 937 938
	* pkcs1.c (_pkcs1_signature_prefix): Renamed function, adding a
	leading underscore. Updated all callers.

939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964
	* bignum-next-prime.c (nettle_next_prime): Consistently use the
	type nettle_random_func * (rather then just nettle_random_func)
	when passing the function pointer as argument. Similar change for
	nettle_progress_func. Should have been done for the 2.0 release,
	but a few arguments were overlooked.
	* bignum-random-prime.c (_nettle_generate_pocklington_prime)
	(nettle_random_prime): Likewise.
	* bignum-random.c (nettle_mpz_random_size, nettle_mpz_random):
	Likewise.
	* dsa-keygen.c (dsa_generate_keypair): Likewise.
	* dsa-sha1-sign.c (dsa_sha1_sign_digest, dsa_sha1_sign): Likewise.
	* dsa-sha256-sign.c (dsa_sha256_sign_digest, dsa_sha256_sign):
	Likewise.
	* dsa-sign.c (_dsa_sign): Likewise.
	* pkcs1-encrypt.c (pkcs1_encrypt): Likewise.
	* rsa-blind.c (_rsa_blind): Likewise.
	* rsa-decrypt-tr.c (rsa_decrypt_tr): Likewise.
	* rsa-encrypt.c (rsa_encrypt): Likewise.
	* rsa-keygen.c (rsa_generate_keypair): Likewise.
	* rsa-pkcs1-sign-tr.c (rsa_pkcs1_sign_tr): Likewise.

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

965 966 967 968
	* testsuite/des-compat-test.c (test_main): Disable declarations of
	disabled functions and variables, to avoid warnings. No verbose
	output unless verbose flag is set.

969 970
2012-06-09  Niels Möller  <nisse@lysator.liu.se>

971 972 973
	* examples/Makefile.in (SOURCES): Added base16dec.c, forgotten
	earlier.

974 975 976 977 978 979 980 981 982 983 984 985 986 987 988
	General pkcs1 signatures, with a "DigestInfo" input. Suggested by
	Nikos Mavrogiannopoulos.
	* Makefile.in (hogweed_SOURCES): Added pkcs1-rsa-digest.c,
	rsa-pkcs1-sign.c, rsa-pkcs1-sign-tr.c, and rsa-pkcs1-verify.c.

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

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

989 990 991 992 993
	* rsa.h (_rsa_blind, _rsa_unblind): Declare functions.
	* rsa-blind.c (_rsa_blind, _rsa_unblind): Functions moved to a
	separate file, renamed and made non-static. Moved from...
	* rsa-decrypt-tr.c: ... here.

994 995 996 997 998 999 1000 1001 1002 1003 1004
2012-06-03  Niels Möller  <nisse@lysator.liu.se>

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

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

1005 1006 1007 1008 1009
2012-05-18  Niels Möller  <nisse@lysator.liu.se>

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

1010 1011 1012 1013 1014
2012-05-09  Niels Möller  <nisse@lysator.liu.se>

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

1015 1016 1017 1018
2012-05-07  Niels Möller  <nisse@lysator.liu.se>

	* nettle-types.h (_STDINT_HAVE_INT_FAST32_T): Define here, to
	force nettle-stdint.h to not try to define the int_fast*_t types.
Niels Möller's avatar
Niels Möller committed
1019
	Avoids compilation problems with gnutls on SunOS-5.8, where the
1020 1021
	definitions here collide with gnulib's.

1022 1023 1024 1025 1026 1027
2012-04-23  Niels Möller  <nisse@lysator.liu.se>

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

1028 1029 1030 1031 1032
2012-04-19  Niels Möller  <nisse@lysator.liu.se>

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

1033 1034 1035 1036
2012-04-18  Niels Möller  <nisse@lysator.liu.se>

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

1037 1038
2012-04-17  Niels Möller  <nisse@lysator.liu.se>

1039 1040 1041 1042
	* testsuite/salsa20-test.c (test_salsa20_stream): Check that
	salsa20_crypt doesn't write beyond the given destination area.
	(test_salsa20): Likewise.

1043 1044 1045
	* salsa20-crypt.c: Renamed file, from...
	* salsa20.c: ... old name.

Niels Möller's avatar
Niels Möller committed
1046 1047
	* x86_64/machine.m4 (WREG): New macro.

1048 1049 1050 1051 1052
	* salsa20.c (salsa20_hash): Deleted function, inlined into
	salsa20_crypt.
	(salsa20_set_key, salsa20_set_iv): Moved, to...
	* salsa20-set-key.c: ...new file.

Niels Möller's avatar
Niels Möller committed
1053 1054 1055 1056 1057
2012-04-15  Niels Möller  <nisse@lysator.liu.se>

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

1058 1059
2012-04-14  Niels Möller  <nisse@lysator.liu.se>

1060 1061
	* examples/io.c (write_file): Use write_string.

1062 1063 1064
	* examples/Makefile.in (base64enc): New targets. Also
	added missing io.o dependency to several other targets.
	(base64dec, base16enc, base16dec): Likewise.
1065 1066 1067

	* examples/base64enc.c: New file, based on example code
	contributed by Jeronimo Pellegrini.
1068 1069 1070
	* examples/base64dec.c: Likewise.
	* examples/base16enc.c: Likewise.
	* examples/base16dec.c: Likewise.
1071

1072 1073 1074 1075 1076 1077 1078
	* examples/rsa-encrypt.c (process_file): Reorganized fread loop.
	(usage): New function.
	(main): Implemented --help option.

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

1079 1080 1081 1082 1083 1084 1085 1086 1087
	* aes-set-decrypt-key.c (gf2_log, gf2_exp): Deleted tables.
	(mult, inv_mix_column): Deleted functions.
	(mtable): New table.
	(MIX_COLUMN): New macro.
	(aes_invert_key): Use MIX_COLUMN and mtable.

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

1088 1089
2012-04-13  Niels Möller  <nisse@lysator.liu.se>

1090 1091 1092 1093
	* aes-set-encrypt-key.c (aes_set_encrypt_key): Use LE_READ_UINT32.
	Tabulate the needed "round constants".
	(xtime): Deleted function.

1094 1095 1096
	* aes-internal.h (SUBBYTE): Cast to uint32_t. Use B0, ..., B3
	macros.

1097 1098
2012-04-09  Niels Möller  <nisse@lysator.liu.se>

1099 1100 1101 1102 1103 1104
	Timing resistant RSA decryption, based on RSA blinding code
	contributed by Nikos Mavrogiannopoulos.
	* rsa-decrypt-tr.c (rsa_decrypt_tr): New function.
	(rsa_blind): Helper function.
	(rsa_unblind): Helper function.
	* rsa.h: Declare rsa_decrypt_tr. Some cleanups, no longer include
1105
	nettle-meta.h, more consistent declarations of function pointer
1106
	arguments.
1107
	* testsuite/rsa-encrypt-test.c (test_main): Test rsa_decrypt_tr.
1108 1109
	Check for writes past the end of the message area.

1110 1111 1112 1113 1114
	* Makefile.in (hogweed_SOURCES): Added pkcs1-decrypt.c.
	* rsa-decrypt.c (rsa_decrypt): Use pkcs1_decrypt.
	* pkcs1-decrypt.c (pkcs1_decrypt): New file and function,
	extracted from rsa_decrypt.

Niels Möller's avatar
Niels Möller committed
1115 1116 1117
2012-04-01  Niels Möller  <nisse@lysator.liu.se>

	* salsa20.c (LE_SWAP32): Typo fix for big-endian case.
Niels Möller's avatar
Niels Möller committed
1118 1119
	(QROUND): New macro.
	(salsa20_hash): Use it.
Niels Möller's avatar
Niels Möller committed
1120

Niels Möller's avatar
Niels Möller committed
1121 1122
2012-03-31  Niels Möller  <nisse@lysator.liu.se>

1123 1124
	* salsa20.c: (salsa20_set_iv): Deleted size argument, only one
	size allowed.
Niels Möller's avatar
Niels Möller committed
1125 1126
	(U8TO32_LITTLE): Deleted macro. Use LE_READ_UINT32 instead, which
	avoids unaligned reads.
Niels Möller's avatar
Niels Möller committed
1127 1128
	(salsa20_set_key): Rearranged slightly, to avoid unnecessary
	byte-to-word conversions.
Niels Möller's avatar
Niels Möller committed
1129

1130 1131 1132 1133 1134 1135 1136 1137
	(LE_SWAP32): Renamed macro from...
	(U32TO32_LITTLE): ... old name.
	(U32TO8_LITTLE): Deleted macro.
	(salsa20_wordtobyte): Renamed function to...
	(salsa20_hash): ... new name. Changed output argument from byte
	array to word array. Use memxor3, which brings a considerable
	performance gain.

1138 1139 1140 1141 1142
	* nettle-internal.c (salsa20_set_key_hack): Updated salsa20_set_iv
	call.
	* testsuite/salsa20-test.c (test_salsa20): Deleted iv_length
	argument, updated all calls.

Niels Möller's avatar
Niels Möller committed
1143 1144 1145 1146
	* salsa20.h (SALSA20_BLOCK_SIZE): New constant.
	(_SALSA20_INPUT_LENGTH): New constant.
	* salsa20.c: Use these constants.

Niels Möller's avatar
Niels Möller committed
1147 1148 1149 1150 1151
	* salsa20.c (ROTL32): Deleted macro, use the one from macros.h
	instead, with reversed order of arguments.
	(ROTATE, XOR, PLUS, PLUSONE): Deleted macros, use ROTL32 and
	builtin operators directly.

Niels Möller's avatar
Niels Möller committed
1152
	Unification of rotation macros.
Niels Möller's avatar
Niels Möller committed
1153 1154
	* macros.h (ROTL32): New macro, to replace (almost) all other
	rotation macros.
1155

Niels Möller's avatar
Niels Möller committed
1156 1157 1158
	* aes-set-encrypt-key.c: Include macros.h.
	(aes_set_encrypt_key): Use ROTL32.
	* aes-internal.h (ROTBYTE, ROTRBYTE): Deleted macros.
1159

1160 1161 1162 1163 1164
	* camellia-internal.h (ROL32): Deleted macro.
	(ROTL128): Renamed for consistency, from...
	(ROL128): ... old name.
	* camellia-crypt-internal.c: Updated for renamed rotation macros.
	* camellia-set-encrypt-key.c: Likewise.
1165 1166 1167
	* cast128.c (ROL): Deleted macro.
	(F1, F2, F3): Updated to use ROTL32 (reversed order of arguments).
	Also added proper do { ... } while (0) wrappers.
1168

1169 1170
	* ripemd160-compress.c (ROL32): Deleted macro.
	(R): Updated to use ROTL32 (reversed order of arguments).
Niels Möller's avatar
Niels Möller committed
1171

1172 1173 1174 1175 1176 1177 1178 1179 1180
	* serpent-internal.h (ROL32): Deleted macro.
	(ROTL64): Renamed (from ROL64) and reorderd arguments, for
	consistency.
	(RSHIFT64): Reordered arguments, for consistency.
	* serpent-decrypt.c: Updated for renamed rotation macros, with
	reversed argument order.
	* serpent-encrypt.c: Likewise.
	* serpent-set-key.c: Likewise.

Niels Möller's avatar
Niels Möller committed
1181 1182
	* sha1-compress.c (ROTL): Deleted macro, use ROTL32 instead.

Niels Möller's avatar
Niels Möller committed
1183 1184 1185 1186
	* sha256-compress.c (ROTR): Deleted macro. Replaced by ROTL32,
	with complemented shift count.
	(SHR): Deleted macro, use plain shift operator instead.

1187 1188 1189 1190 1191
	* sha512-compress.c (ROTR): Deleted macro, replaced by...
	(ROTL64): ...new macro, with complemented shift count
	(SHR): Deleted macro, use plain shift operator instead.
	(S0, S1, s0, s1): Updated accordingly.

1192 1193
2012-03-30  Niels Möller  <nisse@lysator.liu.se>

1194 1195 1196 1197 1198 1199 1200 1201
	* nettle-internal.c (nettle_salsa20): Cipher struct for
	benchmarking only. Sets a fix zero IV, and ignores block size.
	* nettle-internal.h (nettle_salsa20): Declare it.

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

1202
	* Makefile.in (soname link): Fixed logic.
1203
	(nettle_SOURCES): Removed nettle-internal.c, so that it's not
Niels Möller's avatar
Niels Möller committed
1204
	part of the library...
1205 1206 1207 1208
	(internal_SOURCES): ...and put it here.
	* testsuite/Makefile.in (TEST_OBJS): Added ../nettle-internal.o.
	* examples/Makefile.in (BENCH_OBJS): New variable, to simplify the
	nettle-benchmark rule. Also link with ../nettle-internal.o.
1209

1210 1211
2012-03-29  Niels Möller  <nisse@lysator.liu.se>

1212 1213 1214 1215 1216 1217 1218 1219
	Implementation of Salsa20, contributed by Simon Josefsson.
	* salsa20.h: New file.
	* salsa20.c: New file.
	* Makefile.in (nettle_SOURCES): Added salsa20.c
	(HEADERS): Added salsa20.h.
	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added salsa20-test.c.
	* testsuite/salsa20-test.c: New test case.

1220 1221
	* Makefile.in (soname links): Adding missing space before ].

1222 1223 1224 1225
2012-03-23  Niels Möller  <nisse@lysator.liu.se>

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

1226 1227 1228 1229
2012-03-05  Niels Möller  <nisse@lysator.liu.se>

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

1230 1231 1232 1233 1234
2012-03-04  Niels Möller  <nisse@lysator.liu.se>

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

1235 1236
2012-02-27  Niels Möller  <nisse@lysator.liu.se>

1237 1238
	* list-obj-sizes.awk: Recognize elf64 objects.

Niels Möller's avatar
Niels Möller committed
1239 1240
	* Makefile.in (.texinfo.dvi): Pass -b option to texi2dvi.

1241 1242 1243 1244 1245 1246 1247 1248 1249 1250
	* Makefile.in (TARGETS): Added twofishdata.
	(SOURCES): Added twofishdata.c.
	(twofishdata): New rule.

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

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

1251 1252 1253 1254
	* nettle.texinfo: Documentation for base16 and base64 encoding.
	Text contributed by Jeronimo Pellegrini
	<pellegrini@mpcnet.com.br>, back in April 2006.

Niels Möller's avatar
Niels Möller committed
1255 1256
2012-02-18  Niels Möller  <nisse@lysator.liu.se>

1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268
	* run-tests, getopt.c, getopt1.c, getopt.h: These files were moved
	to the top-level in the conversion to an independent git
	repository. They used to be symlinks to lsh files, from the
	subdirectories which use them.

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

Niels Möller's avatar
Niels Möller committed
1269 1270
	* index.html: Converted to xhtml (from lsh repository, change
	dated 2012-02-03). Updated git instructions.
Niels Möller's avatar
Niels Möller committed
1271

Niels Möller's avatar
Niels Möller committed
1272 1273 1274
	* nettle.texinfo: Updated charset declaration.
	* misc/plan.html: Likewise.

Niels Möller's avatar
Niels Möller committed
1275
2012-01-17  Niels Möller  <nisse@lysator.liu.se>
Niels Möller's avatar
Niels Möller committed
1276

Niels Möller's avatar
Niels Möller committed
1277 1278
	* testsuite/Makefile.in (DISTFILES): Added setup-env.

Niels Möller's avatar
Niels Möller committed
1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292
	* examples/rsa-decrypt.c (main): Use _setmode rather than setmode,
	suggested by Eli Zaretskii. Affects windows builds only.
	* examples/rsa-encrypt.c: Likewise.

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

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

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

Niels Möller's avatar
Niels Möller committed
1293 1294 1295
	* testsuite/setup-env: New file. Wine workaround. Can't get
	../.lib into wine's dll search path, so create additional
	symlinks.
Niels Möller's avatar
Niels Möller committed
1296 1297
	* testsuite/teardown-env: ...and delete them here. Also delete
	file testtmp.
Niels Möller's avatar
Niels Möller committed
1298 1299 1300
	* examples/setup-env: Similar links setup here.
	* examples/teardown-env: ... and deleted.

Niels Möller's avatar
Niels Möller committed
1301
2012-01-07  Niels Möller  <nisse@lysator.liu.se>
Niels Möller's avatar
Niels Möller committed
1302

Niels Möller's avatar
Niels Möller committed
1303
	* examples/Makefile.in (check): Add ../.lib to PATH, like in
Niels Möller's avatar
Niels Möller committed
1304 1305
	testsuite/Makefile. Needed for w*ndows. Reported by Eli Zaretskii.

Niels Möller's avatar
Niels Möller committed
1306
2011-11-25  Niels Möller  <nisse@lysator.liu.se>
Martin Storsjö's avatar
Martin Storsjö committed
1307

Niels Möller's avatar
Niels Möller committed
1308
	From Martin Storsjö:
Niels Möller's avatar
Niels Möller committed
1309 1310
	* x86_64/machine.m4 (W64_ENTRY, W64_EXIT): New macros for
	supporting W64 ABI.
1311
	* x86_64: Updated all assembly files to use them.
Niels Möller's avatar
Niels Möller committed
1312

Martin Storsjö's avatar
Martin Storsjö committed
1313
	* configure.ac (W64_ABI): New variable, set when compiling for
Niels Möller's avatar
Niels Möller committed
1314
	W64 ABI (64-bit M$ windows).
Martin Storsjö's avatar
Martin Storsjö committed
1315 1316
	* config.m4.in (W64_ABI): Define, from configure substitution.

Niels Möller's avatar
Niels Möller committed
1317
2011-11-24  Niels Möller  <nisse@lysator.liu.se>
Niels Möller's avatar
Niels Möller committed
1318

Niels Möller's avatar
Niels Möller committed
1319
	From Martin Storsjö:
Niels Möller's avatar
Niels Möller committed
1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331
	* examples/Makefile.in (check): Pass $(EMULATOR) and $(EXEEXT) in
	the environment of run-tests.
	* examples/rsa-encrypt-test: Use $EXEEXT and $EMULATOR.
	* examples/rsa-sign-test: Likewise.
	* examples/rsa-verify-test: Likewise.
	* examples/setup-env: Likewise.

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

Niels Möller's avatar
Niels Möller committed
1332 1333 1334 1335
	* examples/rsa-decrypt.c (main) [WIN32]: Set stdout/stdin to
	binary mode.
	* examples/rsa-encrypt.c (main): Likewise.

Niels Möller's avatar
Niels Möller committed
1336
2011-11-24  Niels Möller  <nisse@lysator.liu.se>
Niels Möller's avatar
Niels Möller committed
1337

1338 1339 1340
	* configure.ac (HAVE_NATIVE_64_BIT): Workaround to get it set to 1
	on w64.

1341
	* serpent-internal.h (ROL64): Use (uint64_t) 1 rather than 1L, for
Niels Möller's avatar
Niels Möller committed
1342
	M$ w64.
1343 1344
	(RSHIFT64): Likewise. Also added a missing parenthesis.

Niels Möller's avatar
Niels Möller committed
1345
2011-11-24  Niels Möller  <nisse@lysator.liu.se>
Niels Möller's avatar
Niels Möller committed
1346

Niels Möller's avatar
Niels Möller committed
1347
	From Martin Storsjö:
Niels Möller's avatar
Niels Möller committed
1348 1349 1350 1351 1352
	* testsuite/symbols-test: Use $NM, falling back to nm if undefined.
	* testsuite/Makefile.in (check): Pass $(NM) in the environment of
	run-tests.
	* config.make.in (NM): Set NM.

Niels Möller's avatar
Niels Möller committed
1353 1354 1355 1356 1357 1358
	* testsuite/sexp-conv-test: Use $EMULATOR when running test
	programs. Also ignore \r for output in the non-canonical output
	formats.
	* testsuite/Makefile.in (check): Pass $(EMULATOR) in the
	environment of run-tests.
	* configure.ac (EMULATOR): New substituted variable. Set to wine
1359
	or wine64 when cross compiling for windows, otherwise empty.
Niels Möller's avatar
Niels Möller committed
1360 1361
	* config.make.in (EMULATOR): Set from autoconf value.

Niels Möller's avatar
Niels Möller committed
1362
2011-11-20  Niels Möller  <nisse@lysator.liu.se>
Niels Möller's avatar
Niels Möller committed
1363 1364 1365

	* x86/camellia-crypt-internal.asm: Take ALIGNOF_UINT64_T into
	account when getting the offset for the subkeys. Differs between
Niels Möller's avatar
Niels Möller committed
1366
	w32 and other systems. w32 problem identified by Martin Storsjö.
Niels Möller's avatar
Niels Möller committed
1367 1368 1369 1370 1371 1372

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

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

Niels Möller's avatar
Niels Möller committed
1373
2011-11-19  Niels Möller  <nisse@lysator.liu.se>
Martin Storsjö's avatar
Martin Storsjö committed
1374

Niels Möller's avatar
Niels Möller committed
1375
	Cygwin/mingw32 improvements contributed by Martin Storsjö:
1376 1377 1378 1379 1380
	* Makefile.in (IMPLICIT_TARGETS): New variable for DLL link
	libraries.
	(clean-here): Delete the DLL import libraries.

	* configure.ac: Setup installation of DLL files in $bindir.
1381 1382 1383 1384 1385 1386 1387 1388
	(IF_DLL, LIBNETTLE_FILE_SRC, LIBHOGWEED_FILE_SRC): New
	substitutions.

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

	* Makefile.in (install-dll-nettle, uninstall-dll-nettle): New
1389
	target for installing the DLL file in $bindir.
1390 1391 1392 1393 1394 1395
	(install-shared-nettle): Conditionally
	depend on install-dll-nettle. Use LIBNETTLE_FILE_SRC.
	(uninstall-shared-nettle): Conditionally depend on
	install-dll-nettle.
	(various hogweed targets): Analogous changes.

Martin Storsjö's avatar
Martin Storsjö committed
1396 1397
	* configure.ac: Unify shared lib setup for cygwin and mingw.

Niels Möller's avatar
Niels Möller committed
1398
2011-10-31  Niels Möller  <nisse@lysator.liu.se>
1399 1400

	* configure.ac (LIBHOGWEED_LIBS): Typo fix for the darwin case.
Niels Möller's avatar
Niels Möller committed
1401
	Spotted by Martin Storsjö.
1402

Niels Möller's avatar
Niels Möller committed
1403
2011-10-25  Niels Möller  <nisse@lysator.liu.se>
1404 1405 1406 1407

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

Niels Möller's avatar
Niels Möller committed
1408
2011-10-18  Niels Möller  <nisse@lysator.liu.se>
1409

Niels Möller's avatar
Niels Möller committed
1410
	* configure.ac: Improved setup för darwin shared libraries.
1411 1412
	Patch contributed by Ryan Schmidt.

Niels Möller's avatar
Niels Möller committed
1413
2011-10-03  Niels Möller  <nisse@lysator.liu.se>