1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
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
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
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
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
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
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
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
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
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
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
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
|
/*
* 'OpenSSL for Ruby' project
* Copyright (C) 2001-2002 Michal Rokos <m.rokos@sh.cvut.cz>
* All rights reserved.
*/
/*
* This program is licensed under the same licence as Ruby.
* (See the file 'LICENCE'.)
*/
#include "ossl.h"
#if !defined(OPENSSL_NO_RSA)
#define GetPKeyRSA(obj, pkey) do { \
GetPKey((obj), (pkey)); \
if (EVP_PKEY_base_id(pkey) != EVP_PKEY_RSA) { /* PARANOIA? */ \
ossl_raise(rb_eRuntimeError, "THIS IS NOT A RSA!") ; \
} \
} while (0)
#define GetRSA(obj, rsa) do { \
EVP_PKEY *_pkey; \
GetPKeyRSA((obj), _pkey); \
(rsa) = EVP_PKEY_get0_RSA(_pkey); \
} while (0)
static inline int
RSA_HAS_PRIVATE(RSA *rsa)
{
const BIGNUM *p, *q;
RSA_get0_factors(rsa, &p, &q);
return p && q; /* d? why? */
}
static inline int
RSA_PRIVATE(VALUE obj, RSA *rsa)
{
return RSA_HAS_PRIVATE(rsa) || OSSL_PKEY_IS_PRIVATE(obj);
}
/*
* Classes
*/
VALUE cRSA;
VALUE eRSAError;
/*
* Public
*/
static VALUE
rsa_instance(VALUE klass, RSA *rsa)
{
EVP_PKEY *pkey;
VALUE obj;
if (!rsa) {
return Qfalse;
}
obj = NewPKey(klass);
if (!(pkey = EVP_PKEY_new())) {
return Qfalse;
}
if (!EVP_PKEY_assign_RSA(pkey, rsa)) {
EVP_PKEY_free(pkey);
return Qfalse;
}
SetPKey(obj, pkey);
return obj;
}
VALUE
ossl_rsa_new(EVP_PKEY *pkey)
{
VALUE obj;
if (!pkey) {
obj = rsa_instance(cRSA, RSA_new());
}
else {
obj = NewPKey(cRSA);
if (EVP_PKEY_base_id(pkey) != EVP_PKEY_RSA) {
ossl_raise(rb_eTypeError, "Not a RSA key!");
}
SetPKey(obj, pkey);
}
if (obj == Qfalse) {
ossl_raise(eRSAError, NULL);
}
return obj;
}
/*
* Private
*/
struct rsa_blocking_gen_arg {
RSA *rsa;
BIGNUM *e;
int size;
BN_GENCB *cb;
int result;
};
static void *
rsa_blocking_gen(void *arg)
{
struct rsa_blocking_gen_arg *gen = (struct rsa_blocking_gen_arg *)arg;
gen->result = RSA_generate_key_ex(gen->rsa, gen->size, gen->e, gen->cb);
return 0;
}
static RSA *
rsa_generate(int size, unsigned long exp)
{
int i;
struct ossl_generate_cb_arg cb_arg = { 0 };
struct rsa_blocking_gen_arg gen_arg;
RSA *rsa = RSA_new();
BIGNUM *e = BN_new();
BN_GENCB *cb = BN_GENCB_new();
if (!rsa || !e || !cb) {
RSA_free(rsa);
BN_free(e);
BN_GENCB_free(cb);
return NULL;
}
for (i = 0; i < (int)sizeof(exp) * 8; ++i) {
if (exp & (1UL << i)) {
if (BN_set_bit(e, i) == 0) {
BN_free(e);
RSA_free(rsa);
BN_GENCB_free(cb);
return NULL;
}
}
}
if (rb_block_given_p())
cb_arg.yield = 1;
BN_GENCB_set(cb, ossl_generate_cb_2, &cb_arg);
gen_arg.rsa = rsa;
gen_arg.e = e;
gen_arg.size = size;
gen_arg.cb = cb;
if (cb_arg.yield == 1) {
/* we cannot release GVL when callback proc is supplied */
rsa_blocking_gen(&gen_arg);
} else {
/* there's a chance to unblock */
rb_thread_call_without_gvl(rsa_blocking_gen, &gen_arg, ossl_generate_cb_stop, &cb_arg);
}
BN_GENCB_free(cb);
BN_free(e);
if (!gen_arg.result) {
RSA_free(rsa);
if (cb_arg.state) {
/* must clear OpenSSL error stack */
ossl_clear_error();
rb_jump_tag(cb_arg.state);
}
return NULL;
}
return rsa;
}
/*
* call-seq:
* RSA.generate(size) => RSA instance
* RSA.generate(size, exponent) => RSA instance
*
* Generates an RSA keypair. +size+ is an integer representing the desired key
* size. Keys smaller than 1024 should be considered insecure. +exponent+ is
* an odd number normally 3, 17, or 65537.
*/
static VALUE
ossl_rsa_s_generate(int argc, VALUE *argv, VALUE klass)
{
/* why does this method exist? why can't initialize take an optional exponent? */
RSA *rsa;
VALUE size, exp;
VALUE obj;
rb_scan_args(argc, argv, "11", &size, &exp);
rsa = rsa_generate(NUM2INT(size), NIL_P(exp) ? RSA_F4 : NUM2ULONG(exp)); /* err handled by rsa_instance */
obj = rsa_instance(klass, rsa);
if (obj == Qfalse) {
RSA_free(rsa);
ossl_raise(eRSAError, NULL);
}
return obj;
}
/*
* call-seq:
* RSA.new(key_size) => RSA instance
* RSA.new(encoded_key) => RSA instance
* RSA.new(encoded_key, pass_phrase) => RSA instance
*
* Generates or loads an RSA keypair. If an integer +key_size+ is given it
* represents the desired key size. Keys less than 1024 bits should be
* considered insecure.
*
* A key can instead be loaded from an +encoded_key+ which must be PEM or DER
* encoded. A +pass_phrase+ can be used to decrypt the key. If none is given
* OpenSSL will prompt for the pass phrase.
*
* = Examples
*
* OpenSSL::PKey::RSA.new 2048
* OpenSSL::PKey::RSA.new File.read 'rsa.pem'
* OpenSSL::PKey::RSA.new File.read('rsa.pem'), 'my pass phrase'
*/
static VALUE
ossl_rsa_initialize(int argc, VALUE *argv, VALUE self)
{
EVP_PKEY *pkey;
RSA *rsa;
BIO *in;
VALUE arg, pass;
GetPKey(self, pkey);
if(rb_scan_args(argc, argv, "02", &arg, &pass) == 0) {
rsa = RSA_new();
}
else if (FIXNUM_P(arg)) {
rsa = rsa_generate(FIX2INT(arg), NIL_P(pass) ? RSA_F4 : NUM2ULONG(pass));
if (!rsa) ossl_raise(eRSAError, NULL);
}
else {
pass = ossl_pem_passwd_value(pass);
arg = ossl_to_der_if_possible(arg);
in = ossl_obj2bio(arg);
rsa = PEM_read_bio_RSAPrivateKey(in, NULL, ossl_pem_passwd_cb, (void *)pass);
if (!rsa) {
OSSL_BIO_reset(in);
rsa = PEM_read_bio_RSA_PUBKEY(in, NULL, NULL, NULL);
}
if (!rsa) {
OSSL_BIO_reset(in);
rsa = d2i_RSAPrivateKey_bio(in, NULL);
}
if (!rsa) {
OSSL_BIO_reset(in);
rsa = d2i_RSA_PUBKEY_bio(in, NULL);
}
if (!rsa) {
OSSL_BIO_reset(in);
rsa = PEM_read_bio_RSAPublicKey(in, NULL, NULL, NULL);
}
if (!rsa) {
OSSL_BIO_reset(in);
rsa = d2i_RSAPublicKey_bio(in, NULL);
}
BIO_free(in);
if (!rsa) {
ossl_raise(eRSAError, "Neither PUB key nor PRIV key");
}
}
if (!EVP_PKEY_assign_RSA(pkey, rsa)) {
RSA_free(rsa);
ossl_raise(eRSAError, NULL);
}
return self;
}
static VALUE
ossl_rsa_initialize_copy(VALUE self, VALUE other)
{
EVP_PKEY *pkey;
RSA *rsa, *rsa_new;
GetPKey(self, pkey);
if (EVP_PKEY_base_id(pkey) != EVP_PKEY_NONE)
ossl_raise(eRSAError, "RSA already initialized");
GetRSA(other, rsa);
rsa_new = ASN1_dup((i2d_of_void *)i2d_RSAPrivateKey, (d2i_of_void *)d2i_RSAPrivateKey, (char *)rsa);
if (!rsa_new)
ossl_raise(eRSAError, "ASN1_dup");
EVP_PKEY_assign_RSA(pkey, rsa_new);
return self;
}
/*
* call-seq:
* rsa.public? => true
*
* The return value is always true since every private key is also a public
* key.
*/
static VALUE
ossl_rsa_is_public(VALUE self)
{
RSA *rsa;
GetRSA(self, rsa);
/*
* This method should check for n and e. BUG.
*/
(void)rsa;
return Qtrue;
}
/*
* call-seq:
* rsa.private? => true | false
*
* Does this keypair contain a private key?
*/
static VALUE
ossl_rsa_is_private(VALUE self)
{
RSA *rsa;
GetRSA(self, rsa);
return RSA_PRIVATE(self, rsa) ? Qtrue : Qfalse;
}
/*
* call-seq:
* rsa.export([cipher, pass_phrase]) => PEM-format String
* rsa.to_pem([cipher, pass_phrase]) => PEM-format String
* rsa.to_s([cipher, pass_phrase]) => PEM-format String
*
* Outputs this keypair in PEM encoding. If +cipher+ and +pass_phrase+ are
* given they will be used to encrypt the key. +cipher+ must be an
* OpenSSL::Cipher instance.
*/
static VALUE
ossl_rsa_export(int argc, VALUE *argv, VALUE self)
{
RSA *rsa;
BIO *out;
const EVP_CIPHER *ciph = NULL;
VALUE cipher, pass, str;
GetRSA(self, rsa);
rb_scan_args(argc, argv, "02", &cipher, &pass);
if (!NIL_P(cipher)) {
ciph = GetCipherPtr(cipher);
pass = ossl_pem_passwd_value(pass);
}
if (!(out = BIO_new(BIO_s_mem()))) {
ossl_raise(eRSAError, NULL);
}
if (RSA_HAS_PRIVATE(rsa)) {
if (!PEM_write_bio_RSAPrivateKey(out, rsa, ciph, NULL, 0,
ossl_pem_passwd_cb, (void *)pass)) {
BIO_free(out);
ossl_raise(eRSAError, NULL);
}
} else {
if (!PEM_write_bio_RSA_PUBKEY(out, rsa)) {
BIO_free(out);
ossl_raise(eRSAError, NULL);
}
}
str = ossl_membio2str(out);
return str;
}
/*
* call-seq:
* rsa.to_der => DER-format String
*
* Outputs this keypair in DER encoding.
*/
static VALUE
ossl_rsa_to_der(VALUE self)
{
RSA *rsa;
int (*i2d_func)(const RSA *, unsigned char **);
unsigned char *p;
long len;
VALUE str;
GetRSA(self, rsa);
if (RSA_HAS_PRIVATE(rsa))
i2d_func = i2d_RSAPrivateKey;
else
i2d_func = (int (*)(const RSA *, unsigned char **))i2d_RSA_PUBKEY;
if((len = i2d_func(rsa, NULL)) <= 0)
ossl_raise(eRSAError, NULL);
str = rb_str_new(0, len);
p = (unsigned char *)RSTRING_PTR(str);
if(i2d_func(rsa, &p) < 0)
ossl_raise(eRSAError, NULL);
ossl_str_adjust(str, p);
return str;
}
#define ossl_rsa_buf_size(rsa) (RSA_size(rsa)+16)
/*
* call-seq:
* rsa.public_encrypt(string) => String
* rsa.public_encrypt(string, padding) => String
*
* Encrypt +string+ with the public key. +padding+ defaults to PKCS1_PADDING.
* The encrypted string output can be decrypted using #private_decrypt.
*/
static VALUE
ossl_rsa_public_encrypt(int argc, VALUE *argv, VALUE self)
{
RSA *rsa;
const BIGNUM *rsa_n;
int buf_len, pad;
VALUE str, buffer, padding;
GetRSA(self, rsa);
RSA_get0_key(rsa, &rsa_n, NULL, NULL);
if (!rsa_n)
ossl_raise(eRSAError, "incomplete RSA");
rb_scan_args(argc, argv, "11", &buffer, &padding);
pad = (argc == 1) ? RSA_PKCS1_PADDING : NUM2INT(padding);
StringValue(buffer);
str = rb_str_new(0, ossl_rsa_buf_size(rsa));
buf_len = RSA_public_encrypt(RSTRING_LENINT(buffer), (unsigned char *)RSTRING_PTR(buffer),
(unsigned char *)RSTRING_PTR(str), rsa, pad);
if (buf_len < 0) ossl_raise(eRSAError, NULL);
rb_str_set_len(str, buf_len);
return str;
}
/*
* call-seq:
* rsa.public_decrypt(string) => String
* rsa.public_decrypt(string, padding) => String
*
* Decrypt +string+, which has been encrypted with the private key, with the
* public key. +padding+ defaults to PKCS1_PADDING.
*/
static VALUE
ossl_rsa_public_decrypt(int argc, VALUE *argv, VALUE self)
{
RSA *rsa;
const BIGNUM *rsa_n;
int buf_len, pad;
VALUE str, buffer, padding;
GetRSA(self, rsa);
RSA_get0_key(rsa, &rsa_n, NULL, NULL);
if (!rsa_n)
ossl_raise(eRSAError, "incomplete RSA");
rb_scan_args(argc, argv, "11", &buffer, &padding);
pad = (argc == 1) ? RSA_PKCS1_PADDING : NUM2INT(padding);
StringValue(buffer);
str = rb_str_new(0, ossl_rsa_buf_size(rsa));
buf_len = RSA_public_decrypt(RSTRING_LENINT(buffer), (unsigned char *)RSTRING_PTR(buffer),
(unsigned char *)RSTRING_PTR(str), rsa, pad);
if (buf_len < 0) ossl_raise(eRSAError, NULL);
rb_str_set_len(str, buf_len);
return str;
}
/*
* call-seq:
* rsa.private_encrypt(string) => String
* rsa.private_encrypt(string, padding) => String
*
* Encrypt +string+ with the private key. +padding+ defaults to PKCS1_PADDING.
* The encrypted string output can be decrypted using #public_decrypt.
*/
static VALUE
ossl_rsa_private_encrypt(int argc, VALUE *argv, VALUE self)
{
RSA *rsa;
const BIGNUM *rsa_n;
int buf_len, pad;
VALUE str, buffer, padding;
GetRSA(self, rsa);
RSA_get0_key(rsa, &rsa_n, NULL, NULL);
if (!rsa_n)
ossl_raise(eRSAError, "incomplete RSA");
if (!RSA_PRIVATE(self, rsa))
ossl_raise(eRSAError, "private key needed.");
rb_scan_args(argc, argv, "11", &buffer, &padding);
pad = (argc == 1) ? RSA_PKCS1_PADDING : NUM2INT(padding);
StringValue(buffer);
str = rb_str_new(0, ossl_rsa_buf_size(rsa));
buf_len = RSA_private_encrypt(RSTRING_LENINT(buffer), (unsigned char *)RSTRING_PTR(buffer),
(unsigned char *)RSTRING_PTR(str), rsa, pad);
if (buf_len < 0) ossl_raise(eRSAError, NULL);
rb_str_set_len(str, buf_len);
return str;
}
/*
* call-seq:
* rsa.private_decrypt(string) => String
* rsa.private_decrypt(string, padding) => String
*
* Decrypt +string+, which has been encrypted with the public key, with the
* private key. +padding+ defaults to PKCS1_PADDING.
*/
static VALUE
ossl_rsa_private_decrypt(int argc, VALUE *argv, VALUE self)
{
RSA *rsa;
const BIGNUM *rsa_n;
int buf_len, pad;
VALUE str, buffer, padding;
GetRSA(self, rsa);
RSA_get0_key(rsa, &rsa_n, NULL, NULL);
if (!rsa_n)
ossl_raise(eRSAError, "incomplete RSA");
if (!RSA_PRIVATE(self, rsa))
ossl_raise(eRSAError, "private key needed.");
rb_scan_args(argc, argv, "11", &buffer, &padding);
pad = (argc == 1) ? RSA_PKCS1_PADDING : NUM2INT(padding);
StringValue(buffer);
str = rb_str_new(0, ossl_rsa_buf_size(rsa));
buf_len = RSA_private_decrypt(RSTRING_LENINT(buffer), (unsigned char *)RSTRING_PTR(buffer),
(unsigned char *)RSTRING_PTR(str), rsa, pad);
if (buf_len < 0) ossl_raise(eRSAError, NULL);
rb_str_set_len(str, buf_len);
return str;
}
/*
* call-seq:
* rsa.params => hash
*
* THIS METHOD IS INSECURE, PRIVATE INFORMATION CAN LEAK OUT!!!
*
* Stores all parameters of key to the hash. The hash has keys 'n', 'e', 'd',
* 'p', 'q', 'dmp1', 'dmq1', 'iqmp'.
*
* Don't use :-)) (It's up to you)
*/
static VALUE
ossl_rsa_get_params(VALUE self)
{
RSA *rsa;
VALUE hash;
const BIGNUM *n, *e, *d, *p, *q, *dmp1, *dmq1, *iqmp;
GetRSA(self, rsa);
RSA_get0_key(rsa, &n, &e, &d);
RSA_get0_factors(rsa, &p, &q);
RSA_get0_crt_params(rsa, &dmp1, &dmq1, &iqmp);
hash = rb_hash_new();
rb_hash_aset(hash, rb_str_new2("n"), ossl_bn_new(n));
rb_hash_aset(hash, rb_str_new2("e"), ossl_bn_new(e));
rb_hash_aset(hash, rb_str_new2("d"), ossl_bn_new(d));
rb_hash_aset(hash, rb_str_new2("p"), ossl_bn_new(p));
rb_hash_aset(hash, rb_str_new2("q"), ossl_bn_new(q));
rb_hash_aset(hash, rb_str_new2("dmp1"), ossl_bn_new(dmp1));
rb_hash_aset(hash, rb_str_new2("dmq1"), ossl_bn_new(dmq1));
rb_hash_aset(hash, rb_str_new2("iqmp"), ossl_bn_new(iqmp));
return hash;
}
/*
* call-seq:
* rsa.to_text => String
*
* THIS METHOD IS INSECURE, PRIVATE INFORMATION CAN LEAK OUT!!!
*
* Dumps all parameters of a keypair to a String
*
* Don't use :-)) (It's up to you)
*/
static VALUE
ossl_rsa_to_text(VALUE self)
{
RSA *rsa;
BIO *out;
VALUE str;
GetRSA(self, rsa);
if (!(out = BIO_new(BIO_s_mem()))) {
ossl_raise(eRSAError, NULL);
}
if (!RSA_print(out, rsa, 0)) { /* offset = 0 */
BIO_free(out);
ossl_raise(eRSAError, NULL);
}
str = ossl_membio2str(out);
return str;
}
/*
* call-seq:
* rsa.public_key -> RSA
*
* Makes new RSA instance containing the public key from the private key.
*/
static VALUE
ossl_rsa_to_public_key(VALUE self)
{
EVP_PKEY *pkey;
RSA *rsa;
VALUE obj;
GetPKeyRSA(self, pkey);
/* err check performed by rsa_instance */
rsa = RSAPublicKey_dup(EVP_PKEY_get0_RSA(pkey));
obj = rsa_instance(CLASS_OF(self), rsa);
if (obj == Qfalse) {
RSA_free(rsa);
ossl_raise(eRSAError, NULL);
}
return obj;
}
/*
* TODO: Test me
static VALUE
ossl_rsa_blinding_on(VALUE self)
{
RSA *rsa;
GetRSA(self, rsa);
if (RSA_blinding_on(rsa, ossl_bn_ctx) != 1) {
ossl_raise(eRSAError, NULL);
}
return self;
}
static VALUE
ossl_rsa_blinding_off(VALUE self)
{
RSA *rsa;
GetRSA(self, rsa);
RSA_blinding_off(rsa);
return self;
}
*/
/*
* Document-method: OpenSSL::PKey::RSA#set_key
* call-seq:
* rsa.set_key(n, e, d) -> self
*
* Sets +n+, +e+, +d+ for the RSA instance.
*/
OSSL_PKEY_BN_DEF3(rsa, RSA, key, n, e, d)
/*
* Document-method: OpenSSL::PKey::RSA#set_factors
* call-seq:
* rsa.set_factors(p, q) -> self
*
* Sets +p+, +q+ for the RSA instance.
*/
OSSL_PKEY_BN_DEF2(rsa, RSA, factors, p, q)
/*
* Document-method: OpenSSL::PKey::RSA#set_crt_params
* call-seq:
* rsa.set_crt_params(dmp1, dmq1, iqmp) -> self
*
* Sets +dmp1+, +dmq1+, +iqmp+ for the RSA instance. They are calculated by
* <tt>d mod (p - 1)</tt>, <tt>d mod (q - 1)</tt> and <tt>q^(-1) mod p</tt>
* respectively.
*/
OSSL_PKEY_BN_DEF3(rsa, RSA, crt_params, dmp1, dmq1, iqmp)
/*
* INIT
*/
#define DefRSAConst(x) rb_define_const(cRSA, #x,INT2FIX(RSA_##x))
void
Init_ossl_rsa(void)
{
#if 0
mPKey = rb_define_module_under(mOSSL, "PKey");
cPKey = rb_define_class_under(mPKey, "PKey", rb_cObject);
ePKeyError = rb_define_class_under(mPKey, "PKeyError", eOSSLError);
#endif
/* Document-class: OpenSSL::PKey::RSAError
*
* Generic exception that is raised if an operation on an RSA PKey
* fails unexpectedly or in case an instantiation of an instance of RSA
* fails due to non-conformant input data.
*/
eRSAError = rb_define_class_under(mPKey, "RSAError", ePKeyError);
/* Document-class: OpenSSL::PKey::RSA
*
* RSA is an asymmetric public key algorithm that has been formalized in
* RFC 3447. It is in widespread use in public key infrastuctures (PKI)
* where certificates (cf. OpenSSL::X509::Certificate) often are issued
* on the basis of a public/private RSA key pair. RSA is used in a wide
* field of applications such as secure (symmetric) key exchange, e.g.
* when establishing a secure TLS/SSL connection. It is also used in
* various digital signature schemes.
*/
cRSA = rb_define_class_under(mPKey, "RSA", cPKey);
rb_define_singleton_method(cRSA, "generate", ossl_rsa_s_generate, -1);
rb_define_method(cRSA, "initialize", ossl_rsa_initialize, -1);
rb_define_copy_func(cRSA, ossl_rsa_initialize_copy);
rb_define_method(cRSA, "public?", ossl_rsa_is_public, 0);
rb_define_method(cRSA, "private?", ossl_rsa_is_private, 0);
rb_define_method(cRSA, "to_text", ossl_rsa_to_text, 0);
rb_define_method(cRSA, "export", ossl_rsa_export, -1);
rb_define_alias(cRSA, "to_pem", "export");
rb_define_alias(cRSA, "to_s", "export");
rb_define_method(cRSA, "to_der", ossl_rsa_to_der, 0);
rb_define_method(cRSA, "public_key", ossl_rsa_to_public_key, 0);
rb_define_method(cRSA, "public_encrypt", ossl_rsa_public_encrypt, -1);
rb_define_method(cRSA, "public_decrypt", ossl_rsa_public_decrypt, -1);
rb_define_method(cRSA, "private_encrypt", ossl_rsa_private_encrypt, -1);
rb_define_method(cRSA, "private_decrypt", ossl_rsa_private_decrypt, -1);
DEF_OSSL_PKEY_BN(cRSA, rsa, n);
DEF_OSSL_PKEY_BN(cRSA, rsa, e);
DEF_OSSL_PKEY_BN(cRSA, rsa, d);
DEF_OSSL_PKEY_BN(cRSA, rsa, p);
DEF_OSSL_PKEY_BN(cRSA, rsa, q);
DEF_OSSL_PKEY_BN(cRSA, rsa, dmp1);
DEF_OSSL_PKEY_BN(cRSA, rsa, dmq1);
DEF_OSSL_PKEY_BN(cRSA, rsa, iqmp);
rb_define_method(cRSA, "set_key", ossl_rsa_set_key, 3);
rb_define_method(cRSA, "set_factors", ossl_rsa_set_factors, 2);
rb_define_method(cRSA, "set_crt_params", ossl_rsa_set_crt_params, 3);
rb_define_method(cRSA, "params", ossl_rsa_get_params, 0);
DefRSAConst(PKCS1_PADDING);
DefRSAConst(SSLV23_PADDING);
DefRSAConst(NO_PADDING);
DefRSAConst(PKCS1_OAEP_PADDING);
/*
* TODO: Test it
rb_define_method(cRSA, "blinding_on!", ossl_rsa_blinding_on, 0);
rb_define_method(cRSA, "blinding_off!", ossl_rsa_blinding_off, 0);
*/
}
#else /* defined NO_RSA */
void
Init_ossl_rsa(void)
{
}
#endif /* NO_RSA */
|