ChangeLog 159 KB
Newer Older
Niels Möller's avatar
Niels Möller committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
2010-09-22  Niels Mller  <nisse@turmalin.hack.org>

	* examples/nettle-benchmark.c (BENCH_INTERVAL): Changed unit to
	seconds.
	(time_function): Use clock_gettime with CLOCK_PROCESS_CPUTIME_ID,
	if available. This gives better accuracy, at least on recent
	linux.

	* examples/Makefile.in (nettle-benchmark): Link using
	$(BENCH_LIBS) rather than $(LIBS).

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

Niels Möller's avatar
Niels Möller committed
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
2010-09-20  Niels Mller  <nisse@turmalin.hack.org>

	* configure.ac: Less quoting when invoking $CC, to allow CC="gcc
	-m32".

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

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

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

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

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

Niels Möller's avatar
Niels Möller committed
35
36
37
38
39
2010-09-17  Niels Mller  <nisse@lysator.liu.se>

	* configure.ac: Support shared libraries (dlls) with mingw32.
	Contributed by David Hoyt.

Niels Möller's avatar
Niels Möller committed
40
41
2010-07-25  Niels Mller  <nisse@lysator.liu.se>

42
43
	* configure.ac: Changed version number to nettle-2.2.

44
45
	* Released nettle-2.1.

Niels Möller's avatar
Niels Möller committed
46
	* configure.ac: Use camellia-crypt-internal.asm, if available.
47
48
	Bumped soname to libnettle.so.4, and reset LIBNETTLE_MINOR to
	zero.
Niels Möller's avatar
Niels Möller committed
49

Niels Möller's avatar
Niels Möller committed
50
	* x86/machine.m4 (LREG, HREG): Moved macros here, from...
Niels Möller's avatar
Niels Möller committed
51
52
53
54
	* x86/aes.m4: ...here.

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

Niels Möller's avatar
Niels Möller committed
55
56
57
58
	* nettle.texinfo: Updated and expanded section on DSA.
	Document aes_invert_key, and camellia. Added missing functions
	rsa_sha512_verify and rsa_sha512_verify_digest.

59
60
61
62
63
64
65
	* camellia.h (struct camellia_ctx): Eliminate the two unused
	subkeys, and renumber the remaining ones.	
	* camellia-crypt-internal.c (_camellia_crypt): Updated for
	renumbered subkeys.
	* camellia-set-encrypt-key.c (camellia_set_encrypt_key): Likewise.
	* camellia-set-decrypt-key.c (camellia_invert_key): Likewise.

Niels Möller's avatar
Niels Möller committed
66
67
68
69
70
71
	* camellia-set-encrypt-key.c (camellia_set_encrypt_key): Inline
	the expansion of camellia_setup128 and camellia_setup256, keeping
	the unexpanded key in scalar variables.
	(camellia_setup128): Deleted.
	(camellia_setup256): Deleted.

72
73
2010-07-24  Niels Mller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
74
75
76
77
	* camellia-set-encrypt-key.c (camellia_set_encrypt_key): Reduced
	code size, no complete loop unroll. Use one loop for each phase of
	the post-processing.

Niels Möller's avatar
Niels Möller committed
78
79
80
	* testsuite/camellia-test.c: New tests for camellia_invert_key.
	* testsuite/aes-test.c: New tests for aes_invert_key.

81
82
83
84
85
86
	* aes.h (aes_invert_key): Declare it.

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

87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
	* camellia-set-encrypt-key.c (camellia_setup128): Generate
	unmodified subkeys according to the spec. Moved clever combination
	of subkeys to camellia_set_encrypt_key.
	(camellia_setup256): Likewise.
	(camellia_set_encrypt_key): Moved subkey post-processing code
	here, and reduce code duplication between 128-bit keys and larger
	keys.

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

	* camellia-set-decrypt-key.c: New file.
	(camellia_invert_key): Key inversion function.
	(camellia_set_decrypt_key): New key setup function.
	* camellia-internal.h: New file.
	* camellia-crypt.c (camellia_crypt): New file, new wrapper
	function passing the sbox table to _camellia_crypt.
	* camellia-crypt-internal.c (_camellia_crypt): New file, with main
	encrypt/decrypt function.
	* Makefile.in (nettle_SOURCES): Updated list of camellia source files.	
	(DISTFILES): Added camellia-internal.h.
Niels Möller's avatar
Niels Möller committed
113

114
115
2010-07-20  Niels Mller  <nisse@lysator.liu.se>

116
117
	* camellia-meta.c: Use _NETTLE_CIPHER_SEP_SET_KEY.

118
119
120
121
122
123
124
125
126
127
128
129
130
	* camellia.h (struct camellia_ctx): Replaced flag camellia128 by
	expanded key length nkeys.

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

Niels Möller's avatar
Niels Möller committed
131
132
133
134
	* nettle-meta.h (_NETTLE_CIPHER_SEP_SET_KEY): New macro.

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

135
136
137
138
139
140
141
	* camellia.c: Rewrote to use 64-bit type for subkeys and use
	64-bit operations throughout. Performance on x86_32, when compiled
	with gcc-4.4.4, is reduced by roughly 15%, this should be fixed
	later.

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

142
143
2010-07-07  Niels Mller  <nisse@lysator.liu.se>

144
145
146
147
148
149
150
	* aes.h (aes_encrypt, aes_decrypt): Declare ctx argument as const.
	Also updated implementation.
	* blowfish.h (blowfish_encrypt, blowfish_decrypt): Likewise.
	* cast128.h (cast128_encrypt, cast128_decrypt): Likewise.
	* serpent.h (serpent_encrypt, serpent_decrypt): Likewise.
	* twofish.h (twofish_encrypt, twofish_decrypt): Likewise.

Niels Möller's avatar
Niels Möller committed
151
152
153
	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added
	camellia-test.c.

Niels Möller's avatar
Niels Möller committed
154
155
	* examples/nettle-benchmark.c: Added camellia ciphers.

156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
	* Makefile.in (nettle_SOURCES): Added camellia.c and
	camellia-meta.c.
	(HEADERS): Added camellia.h.

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

	* camellia-meta.c: New file.

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

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

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

2010-07-06  Niels Mller  <nisse@lysator.liu.se>

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

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

Niels Möller's avatar
Niels Möller committed
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
2010-07-05  Niels Mller  <nisse@lysator.liu.se>

	* nettle.texinfo: Document new conventions for weak key and des
	parity checks. Document des_check_parity.

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

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

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

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

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

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

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

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

Niels Möller's avatar
Niels Möller committed
223
224
2010-06-30  Niels Mller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
225
226
227
228
229
230
	* testsuite/des-test.c (test_des): New function.
	(test_weak): New function.
	(test_main): Use test_des and test_weak. Added tests for all the
	weak keys. Added some tests with invalid (to be ignored) parity
	bits.

Niels Möller's avatar
Niels Möller committed
231
232
233
234
235
236
237
238
	* des.c (parity_16): New smaller parity table.
	(des_check_parity): New function.
	(des_fix_parity): Use parity_16.
	(des_weak_p): New weak-key detection. Ignores parity bits, and
	uses a hash table.
	(des_set_key): Deleted parity checking code. Replaced old weak-key
	detection code by a call to des_weak_p.

Niels Möller's avatar
Niels Möller committed
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
2010-06-04  Niels Mller  <nisse@lysator.liu.se>

	* testsuite/testutils.c (test_dsa_key): Updated for new name
	DSA_SHA1_MIN_P_BITS.

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

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

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

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

2010-06-03  Niels Mller  <nisse@lysator.liu.se>

	* testsuite/dsa-test.c (test_main): Added test for dsa-sha256.

Niels Möller's avatar
Niels Möller committed
267
268
269
270
271
272
273
274
275
2010-06-02  Niels Mller  <nisse@lysator.liu.se>

	* testsuite/dsa-test.c (test_main): Provide expected value of the
	signature.

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

Niels Möller's avatar
Niels Möller committed
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
2010-06-01  Niels Mller  <nisse@lysator.liu.se>

	* testsuite/rsa-keygen-test.c (test_main): Updated expected
	signatures.

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

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

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

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

299
300
2010-05-26  Niels Mller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
301
302
303
304
305
306
307
	* dsa-keygen.c (dsa_generate_keypair): Use
	_nettle_generate_pocklington_prime. Deleted old key generation
	code.

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

Niels Möller's avatar
Niels Möller committed
308
309
	* examples/random-prime.c (main): Allow sizes down to 3 bits.

310
311
312
313
314
315
316
317
	* bignum-random-prime.c (_nettle_generate_pocklington_prime): New
	function. Rely on mpz_probab_prime_p (for lack of a trial division
	function) for trial division.
	(nettle_random_prime): Rewritten. Uses the prime table for the
	smallest sizes, then trial division using a new set of tables, and
	then Maurer's algorithm, calling the new
	_nettle_generate_pocklington_prime for the final search.

Niels Möller's avatar
Niels Möller committed
318
319
320
2010-05-25  Niels Mller  <nisse@lysator.liu.se>

	* testsuite/dsa-test.c (test_main): Updated for dsa testing
321
	changes.
Niels Möller's avatar
Niels Möller committed
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339

	* testsuite/dsa-keygen-test.c (test_main): Test dsa256.

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

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

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

340
341
342
343
344
2010-05-20  Niels Mller  <nisse@lysator.liu.se>

	* bignum-random-prime.c (miller_rabin_pocklington): Fixed broken
	logic when Miller-rabin succeeds early.

345
346
2010-04-09  Niels Mller  <nisse@lysator.liu.se>

347
348
349
350
351
352
	* bignum-next-prime.c: Include stdlib.h, needed for alloca on
	freebsd.
	* hmac.c: Likewise.

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

Niels Möller's avatar
Niels Möller committed
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
	* examples/random-prime.c: New program.

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

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

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

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

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

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

374
375
376
377
378
	* Makefile.in (hogweed_SOURCES): Added bignum-random-prime.c.

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

Niels Möller's avatar
Niels Möller committed
379
380
381
382
2010-03-31  Niels Mller  <nisse@lysator.liu.se>

	* examples/nettle-benchmark.c (main): Benchmark sha224.

383
384
2010-03-30  Niels Mller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
385
386
387
388
	* testsuite/testutils.c (DSA_VERIFY): Updated for dsa_sha1_verify
	rename.
	(test_dsa): Check return value from dsa_sha1_sign.

389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
	* Makefile.in (hogweed_SOURCES): Added dsa-sha1-sign.c,
	dsa-sha1-verify.c, dsa-sha256-sign.c, and dsa-sha256-verify.c.

	* dsa.h: Updated and added dsa declarations.

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

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

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

415
416
2010-03-29  Niels Mller  <nisse@lysator.liu.se>

417
418
419
420
421
	* configure.ac (ABI): Attempt to use a better, ABI-dependant,
	default value for libdir.

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

422
423
	* asm.m4 (EPILOGUE): Use . to refer to current address.

424
425
426
	* configure.ac (ABI): Detect which ABI the compiler is using.
	On x86_64, also check for __arch64__.

427
428
429
430
431
2010-03-28  Niels Mller  <nisse@lysator.liu.se>

	* configure.ac (asm_path): For x86_64, check if compiler is
	generating 32-bit code.

432
433
2010-03-27  Niels Mller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
434
435
436
437
	* testsuite/hmac-test.c (test_main): Rewrote rest of tests to use
	HMAC_TEST, and added more tests from Daniel Kahn Gillmor and from
	RFC 4231.

438
439
440
441
442
443
444
	* Makefile.in (nettle_SOURCES): Added hmac-sha224.c and
	hmac-sha384.c.

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

	* hmac-sha224.c: New file.

Niels Möller's avatar
Niels Möller committed
445
446
2010-03-26  Niels Mller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
447
448
449
450
	* testsuite/hmac-test.c (HMAC_TEST): New macro.
	(test_main): Use HMAC_TEST for the md5 and sha1 tests, and add
	test vectors from Daniel Kahn Gillmor.

Niels Möller's avatar
Niels Möller committed
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added sha224-test.c.

	* Makefile.in (nettle_SOURCES): Added sha224-meta.c and
	write-be32.c.
	(DISTFILES): Added nettle-write.h.

	* sha.h: Added declarations for sha224. Some are aliases for the
	corresponding sha256 definition.

	* sha256.c (sha256_digest): Use _nettle_write_be32.
	(sha224_init): New function.
	(sha224_digest): New function.

	* sha1.c (sha1_digest): Use _nettle_write_be32.

	* nettle-internal.h (NETTLE_MAX_HASH_BLOCK_SIZE)
	(NETTLE_MAX_HASH_DIGEST_SIZE): Increased, to take sha512 into
	account.

	* nettle-write.h: New file.

	* write-be32.c (_nettle_write_be32): New file, new function.

	* sha224-meta.c: New file.

476
477
2010-03-25  Niels Mller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
478
479
480
481
482
483
484
485
486
487
488
489
	* hmac-sha384.c: New file.

	* testsuite/sha224-test.c: New file.

	* testsuite/md4-test.c (test_main): More test vectors, provided by
	Daniel Kahn Gillmor.
	* testsuite/md5-test.c (test_main): Likewise.
	* testsuite/sha1-test.c (test_main): Likewise.
	* testsuite/sha256-test.c (test_main): Likewise.
	* testsuite/sha384-test.c (test_main): Likewise.
	* testsuite/sha512-test.c (test_main): Likewise.

490
491
492
	* configure.ac: Bumped version numbers. Package version
	nettle-2.1, library versions libnettle.so.3.1, libhogweed.so.2.0.

Niels Möller's avatar
Niels Möller committed
493
494
495
496
497
498
	* examples/nettle-benchmark.c (main): Benchmark sha384.

	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added sha384-test.c.

	* testsuite/sha384-test.c: New file.

499
500
501
502
503
504
505
506
507
508
509
510
	* Makefile.in (nettle_SOURCES): Added sha384-meta.c.

	* sha384-meta.c: New file.

	* sha.h: Added declarations for sha384. Some are aliases for the
	corresponding sha512 definition.

	* sha512.c (sha512_write_digest): New function.
	(sha512_digest): Use it.
	(sha384_init): New function.
	(sha384_digest): New function.

511
512
2010-03-24  Niels Mller  <nisse@lysator.liu.se>

513
514
515
	* sha512.c: (sha512_digest): Simplified handling of any final
	partial word of the digest.

516
517
518
519
520
521
522
	* sha512.c: Reorganized to use _nettle_sha512_compress.

	* sha512-compress.c (_nettle_sha512_compress): Compression
	function extracted from sha512.c to a new file.

	* Makefile.in (nettle_SOURCES): Added sha256-compress.c and
	sha512-compress.c.
523
524
525
526
527
528

	* sha256.c: Reorganized to use _nettle_sha256_compress.

	* sha256-compress.c (_nettle_sha256_compress): Compression
	function extracted from sha256.c to a new file.

Niels Möller's avatar
Niels Möller committed
529
530
	* examples/nettle-benchmark.c (main): Benchmark sha512.

531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
	* rsa-keygen.c (rsa_generate_keypair): Ensure that bit size of e
	is less than bit size of n, and check for the unlikely case p = q.

	* rsa.h (RSA_MINIMUM_N_OCTETS, RSA_MINIMUM_N_BITS): Reduced, to
	correspond to pkcs#1 encryption of single byte messagees.

	* pgp-encode.c (pgp_put_rsa_sha1_signature): Check return value
	from rsa_sha1_sign.
	* rsa-compat.c (R_SignFinal): Likewise.

	* rsa-md5-sign.c (rsa_md5_sign): Check and propagate return value
	from pkcs1_rsa_md5_encode.
	(rsa_md5_sign_digest): Check and propagate return value from
	pkcs1_rsa_md5_encode_digest.
	* rsa-md5-verify.c (rsa_md5_verify): Check return value from
	pkcs1_rsa_md5_encode.
	(rsa_md5_verify_digest): Check return value from
	pkcs1_rsa_md5_encode_digest.
	* rsa-sha1-sign.c: Analogous changes.
	* rsa-sha1-verify.c: Analogous changes.
	* rsa-sha256-sign.c: Analogous changes.
	* rsa-sha256-verify.c: Analogous changes.
	* rsa-sha512-sign.c: Analogous changes.
	* rsa-sha512-verify.c: Analogous changes.

	* pkcs1-rsa-md5.c (pkcs1_rsa_md5_encode)
	(pkcs1_rsa_md5_encode_digest): Added return value. Check and
	propagate return value from pkcs1_signature_prefix.
	* pkcs1-rsa-sha256.c (pkcs1_rsa_sha256_encode)
	(pkcs1_rsa_sha256_encode_digest): Likewise.
	* pkcs1-rsa-sha1.c (pkcs1_rsa_sha1_encode)
	(pkcs1_rsa_sha1_encode_digest): Likewise.
	* pkcs1-rsa-sha512.c (pkcs1_rsa_sha512_encode)
	(pkcs1_rsa_sha512_encode_digest): Likewise.

	* pkcs1.c (pkcs1_signature_prefix): Interface change, take both
	the total size and digest size as arguments, and return a status
	code to say if the size was large enough.

	* testsuite/Makefile.in: Added hogweed dependency for the test
	programs.

573
574
2010-03-23  Niels Mller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
575
576
577
578
	* testsuite/rsa-test.c (test_main): Test signing with sha512.

	* testsuite/testutils.c (test_rsa_sha512): New function.

579
580
581
582
583
584
585
586
587
588
589
	* Makefile.in (hogweed_SOURCES): Added pkcs1-rsa-sha512.c,
	rsa-sha512-sign.c and rsa-sha512-verify.c.

	* rsa.h: Added prototypes for sha512-related functions.
	(RSA_MINIMUM_N_OCTETS, RSA_MINIMUM_N_BITS): Increased.
	* pkcs1.h: Added prototypes for sha512-related functions.

	* rsa-sha512-verify.c: New file.
	* rsa-sha512-sign.c: New file.
	* pkcs1-rsa-sha512.c: New file.

Niels Möller's avatar
Niels Möller committed
590
591
2010-03-22  Niels Mller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
592
593
594
595
596
	* Makefile.in (nettle_SOURCES): Added hmac-sha512.c.

	* testsuite/hmac-test.c (test_main): Added test cases for
	hmac-sha512.

597
	* hmac.h: Declare functions sha512-related functions.
Niels Möller's avatar
Niels Möller committed
598
599
	* hmac-sha512.c (hmac_sha512_set_key): New file.

600
	Basic sha512 support.
Niels Möller's avatar
Niels Möller committed
601
602
603
604
605
606
	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added sha512-test.c.
	* testsuite/sha512-test.c: New file.

	* macros.h (READ_UINT64, WRITE_UINT64): New macros.

	* Makefile.in (nettle_SOURCES): Added sha512.c and sha512-meta.c.
607
	* sha.h: Added sha512-related declarations.
Niels Möller's avatar
Niels Möller committed
608
609
610
611
	* nettle-meta.h: Likewise.
	* sha512-meta.c: New file.
	* sha512.c: New file.

612
613
614
615
2010-03-06  Niels Mller  <nisse@lysator.liu.se>

	* Makefile.in (distdir): Include x86_64 assembler files.

Niels Möller's avatar
Niels Möller committed
616
617
618
619
2010-01-20  Niels Mller  <nisse@lysator.liu.se>

	* configure.ac: Check for mpz_powm_sec.

620
621
622
623
624
625
626
627
628
629
2010-01-13  Niels Mller  <nisse@lysator.liu.se>

	* Makefile.in ($(LIBHOGWEED_FORLINK)): Depend on
	$(LIBNETTLE_FORLINK).

	* configure.ac (LIBHOGWEED_LIBS): Added -lnettle -lgmp for the
	default case. Follows debian, and also makes dlopen of
	libhogweed.so work, without having to use RTLD_GLOBAL.
	(LIBHOGWEED_LINK): Added -L., to find our libnettle.so.

Niels Möller's avatar
Niels Möller committed
630
631
632
633
634
2009-10-21  Niels Mller  <nisse@lysator.liu.se>

	* tools/Makefile.in (pkcs1-conv$(EXEEXT)): Added dependency on
	../libhogweed.a.

635
636
637
638
639
640
641
642
643
644
645
646
647
2009-10-19  Niels Mller  <nisse@lysator.liu.se>

	* tools/pkcs1-conv.c: Updated for dsa/der interface change.

	* der2dsa.c (dsa_public_key_from_der_iterators): Split into two
	new functions...
	(dsa_params_from_der_iterator): New function.
	(dsa_public_key_from_der_iterator): New function.
	(dsa_openssl_private_key_from_der_iterator): Renamed, was
	dsa_private_key_from_der_iterator.
	(dsa_openssl_private_key_from_der): Likewise.
	* dsa.h: Corresponding changees to prototypes and #defines.

Niels Möller's avatar
Niels Möller committed
648
649
2009-10-12  Niels Mller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
650
651
652
653
654
655
656
657
658
659
660
	* sexp-format.c: Removed conditioning on HAVE_LIBGMP.

	* tools/pkcs1-conv.c: Support for DSA keys, contributed by Magnus
	Holmgren.

	* Makefile.in (hogweed_SOURCES): Added dsa2sexp.c and der2dsa.c.

	* der2dsa.c: New file, contributed by Magnus Holmgren.
	* dsa2sexp.c: Likewise.
	* dsa.h: Added prototypes.

661
662
663
	* configure.ac (LIBHOGWEED_MINOR): Bumped libhogweed minor
	version, now it's 1.1.

664
665
	* testsuite/rsa2sexp-test.c (test_main): Updated testcase for
	"rsa-pkcs1".
Niels Möller's avatar
Niels Möller committed
666

Niels Möller's avatar
Niels Möller committed
667
668
669
670
671
2009-10-11  Niels Mller  <nisse@lysator.liu.se>

	* rsa2sexp.c (rsa_keypair_to_sexp): Changed default algorithm name
	to "rsa-pkcs1".

Niels Möller's avatar
Niels Möller committed
672
673
674
675
676
677
678
679
680
681
682
2009-09-20  Niels Mller  <nisse@lysator.liu.se>

	* x86/sha1-compress.asm: Improved performance by 17% on AMD K7,
	by letting loopmix scramble the instruction order.

2009-09-15  Niels Mller  <nisse@lysator.liu.se>

	* x86/sha1-compress.asm: Cleanup, removing old cruft. Slight
	improvement to ROUND_F1_NOEXP. Slight reduction of
	dependency-chains.

Niels Möller's avatar
Niels Möller committed
683
684
2009-08-25  Niels Mller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
685
686
	* x86/sha1-compress.asm: Eliminated tmp variable for f3 rounds.

Niels Möller's avatar
Niels Möller committed
687
688
689
	* examples/nettle-benchmark.c (bench_sha1_compress): New function,
	for precise benchmarking of the compression function.

Niels Möller's avatar
Niels Möller committed
690
691
692
693
2009-06-08  Niels Mller  <nisse@lysator.liu.se>

	* Released nettle-2.0.

Niels Möller's avatar
Niels Möller committed
694
695
696
697
698
699
700
701
702
2009-06-04  Niels Mller  <nisse@lysator.liu.se>

	* configure.ac: Set version to 2.0

2009-05-30  Niels Mller  <nisse@lysator.liu.se>

	* Makefile.in (.texinfo.info): Don't use a temporary output file
	$@T, trust makeinfo to remove output file on errors.

Niels Möller's avatar
Niels Möller committed
703
704
705
2009-05-19  Niels Mller  <nisse@lysator.liu.se>

	* nettle.texinfo: Changed license to public domain.
Niels Möller's avatar
Niels Möller committed
706

Niels Möller's avatar
Niels Möller committed
707
2009-05-11  Niels Mller  <nisse@lysator.liu.se>
Niels Möller's avatar
Niels Möller committed
708

Niels Möller's avatar
Niels Möller committed
709
710
	* nettle.texinfo: Fixes from Karl Berry. Added some more index
	terms.
Niels Möller's avatar
Niels Möller committed
711

Niels Möller's avatar
Niels Möller committed
712
713
2009-03-06  Niels Mller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
714
715
716
717
718
719
720
721
	* x86_64/aes-encrypt-internal.asm: Reduced unrolling. Keep state
	in %eax--%edx only.
	* x86_64/aes-decrypt-internal.asm: Likewise.

	* x86_64/aes.m4 (MOVE_HREG): Deleted, no longer needed.
	(AES_STORE): Reduced offsets.
	(AES_ROUND): Use HREG directly, not MOVE_HREG.

Niels Möller's avatar
Niels Möller committed
722
723
724
725
	* x86_64/aes-decrypt-internal.asm: Rearrange register allocation.
	Put SA--SD in %eax--%edx, so the second byte can be accessed as
	%ah-%dh. TD is not needed, SD can be reused. Use the register that
	is saved for the outer loop counter, getting it off the stack.
Niels Möller's avatar
Niels Möller committed
726
	* x86_64/aes-encrypt-internal.asm: Likewise.
Niels Möller's avatar
Niels Möller committed
727
728
729
730
731

	* x86_64/aes.m4 (HREG, MOVE_HREG): New macros.
	(XREG): Fixed bug in handling of %r8 and %r9.
	(AES_ROUND): Use MOVE_HREG.

732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
2009-02-10  Niels Mller  <nisse@lysator.liu.se>

	* base16-meta.c (base16_encode_update_wrapper): Mark ctx argument
	as UNUSED.

	* testsuite/sexp-conv-test: Updated testcases for improved
	handling of comments.

	* tools/sexp-conv.c (sexp_convert_item): Use sexp_put_soft_newline
	to terminate comments, and modify indentation for the case that a
	list starts with a comment.

	* tools/output.c (sexp_output_init): Initialize soft_newline.
	(sexp_put_raw_char): Clear soft_newline.
	(sexp_put_newline): Check and reset soft_newline.
	(sexp_put_soft_newline): New function.

	* tools/output.h (struct sexp_output): Removed union with single
	element, and updated all users. New attribute soft_newline.

752
753
754
755
2008-12-22  Niels Mller  <nisse@lysator.liu.se>

	* Makefile.in ($(des_headers)): Create files in $(srcdir).

Niels Möller's avatar
Niels Möller committed
756
757
758
759
2008-11-28  Niels Mller  <nisse@lysator.liu.se>

	* testsuite/cxx-test.cxx: Include <cstdio>.

760
761
762
763
764
765
766
767
2008-11-22  Niels Mller  <nisse@lysator.liu.se>

	* yarrow256.c (yarrow256_fast_reseed): Set ctx->seeded = 1, so
	that it is set if and only if the aes context has been initialized
	with aes_set_encrypt_key.
	(yarrow256_seed): No need to set ctx->seeded here.
	(yarrow256_update): Likewise.

Niels Möller's avatar
Niels Möller committed
768
769
770
771
772
2008-11-04  Niels Mller  <nisse@lysator.liu.se>

	* examples/next-prime.c (main): Avoid using gmp_fprintf, to stay
	compatible with gmp-3.1.

Niels Möller's avatar
Niels Möller committed
773
774
2008-11-01  Niels Mller  <nisse@lysator.liu.se>

775
776
	* nettle.texinfo: Updated for 2.0. New section on linking.

Niels Möller's avatar
Niels Möller committed
777
778
779
780
	* nettle-types.h, nettle-meta.h: Moved all typedefs for function
	types to nettle-types.h. Use non-pointer types, so that the types
	can be used to declare functions. Updated all users.

Niels Möller's avatar
Niels Möller committed
781
782
783
784
785
786
787
2008-10-31  Niels Mller  <nisse@lysator.liu.se>

	* testsuite/yarrow-test.c (test_main): Updated for seed file
	changes.

	* sha-example.c (display_hex): Use %02x, not %2x.

Niels Möller's avatar
Niels Möller committed
788
789
790
791
2008-10-30  Niels Mller  <nisse@lysator.liu.se>

	* tools/sexp-conv.c (main): Fixed file locking.

Niels Möller's avatar
Niels Möller committed
792
793
2008-10-25  Niels Mller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
794
795
	* configure.ac: Set version to 2.0rc1.

Niels Möller's avatar
Niels Möller committed
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
	* examples/Makefile.in (next-prime$(EXEEXT)): Added -lnettle to
	linker.

2008-10-24  Niels Mller  <nisse@lysator.liu.se>

	* sha256.c (ROUND): Simplified macro.

	* yarrow256.c (yarrow256_fast_reseed): Renamed (was
	yarrow_fast_reseed) and made non-static. Don't generate seed file
	here, let the application use yarrow256_random instead.
	(yarrow256_slow_reseed): Renamed (was yarrow_slow_reseed) and made
	non-static.
	(yarrow256_force_reseed): Deleted function, use
	yarrow256_slow_reseed instead. For backwards compatibility,
	yarrow.h defines yarrow256_force_reseed as an alias for that
	function.

	* yarrow.h (struct yarrow256_ctx): Deleted seed_file buffer.

Niels Möller's avatar
Niels Möller committed
815
816
817
818
819
2008-09-17  Niels Mller  <nisse@lysator.liu.se>

	* x86/arcfour-crypt.asm: Improved loop logic, and unrolled
	loop twice. Gave a modest speedup.

Niels Möller's avatar
Niels Möller committed
820
821
2008-09-15  Niels Mller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
822
823
824
825
826
	* yarrow256.c (yarrow256_seed): Disallow length == 0.

	* base64-decode.c (decode_table): Added vertical tab (VT) and form
	feed (FF) as white space characters.

Niels Möller's avatar
Niels Möller committed
827
828
	* x86_64/aes-decrypt-internal.asm: New file.

Niels Möller's avatar
Niels Möller committed
829
830
2008-09-13  Niels Mller  <nisse@lysator.liu.se>

Niels Möller's avatar
Niels Möller committed
831
832
	* x86/aes-encrypt-internal.asm: Replaced pushl and popl in the
	loop with movl.	Eliminated redundant movl.
Niels Möller's avatar
Niels Möller committed
833
	* x86/aes-decrypt-internal.asm: Likewise.
Niels Möller's avatar
Niels Möller committed
834
835
836
837
838
839
840
841
842
843
844
845
846

	* x86_64/aes.m4: New file.

	* x86/aes-encrypt-internal.asm: Updated for AES_FINAL_ROUND. Only
	three times through the substitution loop.
	* x86/aes-decrypt-internal.asm: Likewise.
	* x86_64/aes-encrypt-internal.asm: Likewise.

	* x86/aes.m4 (AES_FINAL_ROUND): Do the substitution on the least
	significant byte here.

	* x86/aes-encrypt-internal.asm: Updated use of AES_SUBST_BYTE. USe
	decl for outer loop.
Niels Möller's avatar
Niels Möller committed
847
	* x86/aes-decrypt-internal.asm: Likewise.
Niels Möller's avatar
Niels Möller committed
848
849
850

	* x86/aes.m4 (LREG, HREG): New macros.
	(AES_SUBST_BYTE): Take state registers as argument. Use LREG to
Niels Möller's avatar
Niels Möller committed
851
	get the corresponding byte register.
Niels Möller's avatar
Niels Möller committed
852
853
	(AES_ROUND): Use movzbl together with LREG and HREG.
	(AES_SUBST_BYTE): Likewise.
Niels Möller's avatar
Niels Möller committed
854

Niels Möller's avatar
Niels Möller committed
855
856
857
858
859
2008-09-10  Niels Mller  <nisse@lysator.liu.se>

	* x86_64/sha1-compress.asm: Avoid using registers %rbx and %rbp,
	which must be preserved.

860
861
2008-09-08  Niels Mller  <nisse@lysator.liu.se>

862
863
	* Makefile.in (stamp-h.in): Use $(AUTOHEADER).

Niels Möller's avatar
Niels Möller committed
864
	* x86_64/sha1-compress.asm: New x86_64 assembler, based on the x86
Niels Möller's avatar
Niels Möller committed
865
	version.
Niels Möller's avatar
Niels Möller committed
866

867
868
869
870
	* configure.ac (asm_path): Set up asm_path for x86_64.

	* x86_64/machine.m4: New file, new directory.

Niels Möller's avatar
Niels Möller committed
871
872
873
874
875
2008-08-28  Niels Mller  <nisse@lysator.liu.se>

	* examples/eratosthenes.c (main): Rewrote block-wise sieving to
	use less memory. New options -s and -v.

Niels Möller's avatar
Niels Möller committed
876
877
878
879
2008-08-27  Niels Mller  <nisse@lysator.liu.se>

	* testsuite/sexp-conv-test (print_raw, print_nl): Use printf.
	Updated testcases with comments; comments are now preserved.
Niels Möller's avatar
Niels Möller committed
880

Niels Möller's avatar
Niels Möller committed
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
	* tools/sexp-conv.c (sexp_convert_item): Keep comments in advanced
	output.
	(parse_options): New --lock option.
	(main): Optionally lock output file.

	* tools/parse.c (sexp_check_token): Removed check for "any" token.
	All callers specify the token they expect.
	(sexp_parse): Pass on comment tokens.

	* tools/output.c (sexp_put_data): Made non-static.

	* tools/input.c (sexp_get_comment): New function.
	(sexp_get_token): Use sexp_get_comment.

	* tools/misc.h (enum sexp_token): Start enumeration with zero, zero
Niels Möller's avatar
Niels Möller committed
896
	is no longer used to mean any type. New type SEXP_COMMENT.
Niels Möller's avatar
Niels Möller committed
897
898
899

	* configure.ac: Check for fcntl file locking.

900
901
902
903
904
905
906
2008-08-26  Niels Mller  <nisse@lysator.liu.se>

	* Makefile.in (tags-here): Put TAGS file in the source directory.
	* examples/Makefile.in (tags): Likewise.
	* testsuite/Makefile.in (tags): Likewise.
	* tools/Makefile.in (tags): Likewise.

Niels Möller's avatar
Niels Möller committed
907
908
909
910
2008-02-29  Niels Mller  <nisse@lysator.liu.se>

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

Niels Möller's avatar
Niels Möller committed
911
912
913
914
915
916
917
918
2008-01-05  Niels Mller  <nisse@lysator.liu.se>

	* examples/Makefile.in (TARGETS): Added eratosthenes and next-prime.
	(next-prime, eratosthenes): New rules.
	(nettle-benchmark): Don't rely on $@.

	* examples/eratosthenes.c (find_first_one): Optimized, using
	slightly larger table.
Niels Möller's avatar
Niels Möller committed
919
	(main): Use atol, rather than atoi.
Niels Möller's avatar
Niels Möller committed
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947

	* testsuite/symbols-test: Check symbols also in libhogweed.

	* examples/next-prime.c: New file.
	Deleted code for detailed timing.

	* Makefile.in (hogweed_SOURCES): Added bignum-next-prime.c.
	(DISTFILES): Added prime-list.h.
	(hogweed_OBJS): Removed $(LIBOBJS).

	* bignum-next-prime.c (nettle_next_prime): Renamed function, for
	name space reasons. Was bignum_next_prime. Updated call in
	rsa-keygen.c.
	(primes): Use prime-list.h.
	(nettle_next_prime): Skip Fermat test. Use mpz_millerrabin
	directly, rather than mpz_probab_prime_p, when the former is
	available.

	* bignum.h (nettle_next_prime): New prototype.

	* rsa-keygen.c (bignum_next_prime): Deleted, moved to
	bignum-next-prime.c. Call with a larger prime limit, this improves
	the running time of lsh-keygen by roughly 25%.

	* prime-list.h: List of odd primes < 2^16.

	* configure.ac: Check for sizeof(long).

Niels Möller's avatar
Niels Möller committed
948
949
950
951
952
953
954
955
2008-01-03  Niels Mller  <nisse@lysator.liu.se>

	* examples/nettle-benchmark.c (main): Removed incorrect UNUSED
	from declaration.

	* bignum-next-prime.c: Moved the bignum_next_prime function to a
	separate file.

956
957
958
959
960
961
962
963
2007-09-08  Niels Mller  <nisse@lysator.liu.se>

	* sparc64/aes-encrypt-internal.asm: The directory with the aes.m4
	include file was renamed from "sparc" to "sparc32". Updated include.
	* sparc64/aes-decrypt-internal.asm: Likewise.
	* sparc32/aes-encrypt-internal.asm: Likewise.
	* sparc32/aes-decrypt-internal.asm: Likewise.

Niels Möller's avatar
Niels Möller committed
964
965
966
967
2007-09-07  Niels Mller  <nisse@lysator.liu.se>

	* examples/read_rsa_key.c: Include stdlib.h.

Niels Möller's avatar
Niels Möller committed
968
969
970
2007-06-02  Niels Mller  <nisse@lysator.liu.se>

	* Makefile.in: Typo fixes to install targets, spotted by Magnus
Niels Möller's avatar
Niels Möller committed
971
	Holmgren.
Niels Möller's avatar
Niels Möller committed
972

Niels Möller's avatar
Niels Möller committed
973
974
2007-05-14  Niels Mller  <niels@s3.kth.se>

Niels Möller's avatar
Niels Möller committed
975
976
977
978
979
980
981
	* configure.ac: Fixed copy-and-paste errors in shared library
	name setup.

	* config.make.in (LIBNETTLE_SONAME, LIBHOGWEED_SONAME): Define.

	* Makefile.in (libnettle.so, libhogweed.so): Fixed rules.

Niels Möller's avatar
Niels Möller committed
982
983
984
985
986
987
988
989
990
991
992
993
	* Makefile.in: Split nettle library into two files, libnettle.a
	and libhogweed.a, and similarly for the shared libraries.

	* configure.ac: Bumped nettle so-versions to 3.0. Set hogweed
	so-versions to 1.0. New makefile conditionals IF_SHARED and
	IF_HOGWEED. Renamed WITH_PUBLIC_KEY to WITH_HOGWEED. Deleted
	SHLIBTARGET, SHLIBINSTALL, RSA_EXAMPLES and RSA_TOOLS.

	* config.make.in: Updated for hogweed split.

	* C source files: Don't use WITH_PUBLIC_KEY / WITH_HOGWEED, the
	Makefile sorts out which files should be compiled.
994

Niels Möller's avatar
Niels Möller committed
995
996
997
998
999
1000
	* pgp.h: Include bignum.h, don't pretend to work without bignums.

	* pgp-encode.c (pgp_put_mpi, pgp_put_public_rsa_key)
	(pgp_put_rsa_sha1_signature): Define unconditionally. Removed the
	checking of HAVE_LIBGMP and WITH_PUBLIC_KEY.