Class: OpenSSL::Engine

Inherits:
Object
  • Object
show all
Defined in:
ext/openssl/ossl_engine.c,
ext/openssl/ossl_engine.c

Overview

This class is the access to openssl’s ENGINE cryptographic module implementation.

See also, www.openssl.org/docs/crypto/engine.html

Defined Under Namespace

Classes: EngineError

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.OpenSSL::Engine.by_id(name) ⇒ Object

Fetches the engine as specified by the id String.

OpenSSL::Engine.by_id("openssl")
 => #<OpenSSL::Engine id="openssl" name="Software engine support">

See OpenSSL::Engine.engines for the currently loaded engines.



218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
 
# File 'ext/openssl/ossl_engine.c', line 218

static VALUE
ossl_engine_s_by_id(VALUE klass, VALUE id)
{
    ENGINE *e;
    VALUE obj;

    StringValueCStr(id);
    ossl_engine_s_load(1, &id, klass);
    obj = NewEngine(klass);
    if(!(e = ENGINE_by_id(RSTRING_PTR(id))))
	ossl_raise(eEngineError, NULL);
    SetEngine(obj, e);
    if(rb_block_given_p()) rb_yield(obj);
    if(!ENGINE_init(e))
	ossl_raise(eEngineError, NULL);
    ENGINE_ctrl(e, ENGINE_CTRL_SET_PASSWORD_CALLBACK,
		0, NULL, (void(*)(void))ossl_pem_passwd_cb);
    ossl_clear_error();

    return obj;
}

.OpenSSL::Engine.cleanup ⇒ Object

It is only necessary to run cleanup when engines are loaded via OpenSSL::Engine.load. However, running cleanup before exit is recommended.

Note that this is needed and works only in OpenSSL < 1.1.0.



172
173
174
175
176
177
178
179
 
# File 'ext/openssl/ossl_engine.c', line 172

static VALUE
ossl_engine_s_cleanup(VALUE self)
{
#if defined(LIBRESSL_VERSION_NUMBER) || OPENSSL_VERSION_NUMBER < 0x10100000
    ENGINE_cleanup();
#endif
    return Qnil;
}

.OpenSSL::Engine.engines ⇒ Array

Returns an array of currently loaded engines.

Returns:

  • (Array) 


187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
 
# File 'ext/openssl/ossl_engine.c', line 187

static VALUE
ossl_engine_s_engines(VALUE klass)
{
    ENGINE *e;
    VALUE ary, obj;

    ary = rb_ary_new();
    for(e = ENGINE_get_first(); e; e = ENGINE_get_next(e)){
	obj = NewEngine(klass);
	/* Need a ref count of two here because of ENGINE_free being
	 * called internally by OpenSSL when moving to the next ENGINE
	 * and by us when releasing the ENGINE reference */
	ENGINE_up_ref(e);
	SetEngine(obj, e);
        rb_ary_push(ary, obj);
    }

    return ary;
}

.OpenSSL::Engine.load(name = nil) ⇒ Object

This method loads engines. If name is nil, then all builtin engines are loaded. Otherwise, the given name, as a String, is loaded if available to your runtime, and returns true. If name is not found, then nil is returned.



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
 
# File 'ext/openssl/ossl_engine.c', line 93

static VALUE
ossl_engine_s_load(int argc, VALUE *argv, VALUE klass)
{
#if !defined(HAVE_ENGINE_LOAD_BUILTIN_ENGINES)
    return Qnil;
#else
    VALUE name;

    rb_scan_args(argc, argv, "01", &name);
    if(NIL_P(name)){
        ENGINE_load_builtin_engines();
        return Qtrue;
    }
    StringValueCStr(name);
#ifndef OPENSSL_NO_STATIC_ENGINE
#if HAVE_ENGINE_LOAD_DYNAMIC
    OSSL_ENGINE_LOAD_IF_MATCH(dynamic, DYNAMIC);
#endif
#if HAVE_ENGINE_LOAD_4758CCA
    OSSL_ENGINE_LOAD_IF_MATCH(4758cca, 4758CCA);
#endif
#if HAVE_ENGINE_LOAD_AEP
    OSSL_ENGINE_LOAD_IF_MATCH(aep, AEP);
#endif
#if HAVE_ENGINE_LOAD_ATALLA
    OSSL_ENGINE_LOAD_IF_MATCH(atalla, ATALLA);
#endif
#if HAVE_ENGINE_LOAD_CHIL
    OSSL_ENGINE_LOAD_IF_MATCH(chil, CHIL);
#endif
#if HAVE_ENGINE_LOAD_CSWIFT
    OSSL_ENGINE_LOAD_IF_MATCH(cswift, CSWIFT);
#endif
#if HAVE_ENGINE_LOAD_NURON
    OSSL_ENGINE_LOAD_IF_MATCH(nuron, NURON);
#endif
#if HAVE_ENGINE_LOAD_SUREWARE
    OSSL_ENGINE_LOAD_IF_MATCH(sureware, SUREWARE);
#endif
#if HAVE_ENGINE_LOAD_UBSEC
    OSSL_ENGINE_LOAD_IF_MATCH(ubsec, UBSEC);
#endif
#if HAVE_ENGINE_LOAD_PADLOCK
    OSSL_ENGINE_LOAD_IF_MATCH(padlock, PADLOCK);
#endif
#if HAVE_ENGINE_LOAD_CAPI
    OSSL_ENGINE_LOAD_IF_MATCH(capi, CAPI);
#endif
#if HAVE_ENGINE_LOAD_GMP
    OSSL_ENGINE_LOAD_IF_MATCH(gmp, GMP);
#endif
#if HAVE_ENGINE_LOAD_GOST
    OSSL_ENGINE_LOAD_IF_MATCH(gost, GOST);
#endif
#if HAVE_ENGINE_LOAD_CRYPTODEV
    OSSL_ENGINE_LOAD_IF_MATCH(cryptodev, CRYPTODEV);
#endif
#if HAVE_ENGINE_LOAD_AESNI
    OSSL_ENGINE_LOAD_IF_MATCH(aesni, AESNI);
#endif
#endif
#ifdef HAVE_ENGINE_LOAD_OPENBSD_DEV_CRYPTO
    OSSL_ENGINE_LOAD_IF_MATCH(openbsd_dev_crypto, OPENBSD_DEV_CRYPTO);
#endif
    OSSL_ENGINE_LOAD_IF_MATCH(openssl, OPENSSL);
    rb_warning("no such builtin loader for `%"PRIsVALUE"'", name);
    return Qnil;
#endif /* HAVE_ENGINE_LOAD_BUILTIN_ENGINES */
}

Instance Method Details

#cipher(name) ⇒ OpenSSL::Cipher

Returns a new instance of OpenSSL::Cipher by name, if it is available in this engine.

An EngineError will be raised if the cipher is unavailable.

e = OpenSSL::Engine.by_id("openssl")
 => #<OpenSSL::Engine id="openssl" name="Software engine support">
e.cipher("RC4")
 => #<OpenSSL::Cipher:0x007fc5cacc3048>

Returns:



313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
 
# File 'ext/openssl/ossl_engine.c', line 313

static VALUE
ossl_engine_get_cipher(VALUE self, VALUE name)
{
    ENGINE *e;
    const EVP_CIPHER *ciph, *tmp;
    int nid;

    tmp = EVP_get_cipherbyname(StringValueCStr(name));
    if(!tmp) ossl_raise(eEngineError, "no such cipher `%"PRIsVALUE"'", name);
    nid = EVP_CIPHER_nid(tmp);
    GetEngine(self, e);
    ciph = ENGINE_get_cipher(e, nid);
    if(!ciph) ossl_raise(eEngineError, NULL);

    return ossl_cipher_new(ciph);
}

#cmds ⇒ Array

Returns an array of command definitions for the current engine

Returns:

  • (Array) 


488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
 
# File 'ext/openssl/ossl_engine.c', line 488

static VALUE
ossl_engine_get_cmds(VALUE self)
{
    ENGINE *e;
    const ENGINE_CMD_DEFN *defn, *p;
    VALUE ary, tmp;

    GetEngine(self, e);
    ary = rb_ary_new();
    if ((defn = ENGINE_get_cmd_defns(e)) != NULL){
	for (p = defn; p->cmd_num > 0; p++){
	    tmp = rb_ary_new();
	    rb_ary_push(tmp, rb_str_new2(p->cmd_name));
	    rb_ary_push(tmp, rb_str_new2(p->cmd_desc));
	    rb_ary_push(tmp, ossl_engine_cmd_flag_to_name(p->cmd_flags));
	    rb_ary_push(ary, tmp);
	}
    }

    return ary;
}

#ctrl_cmd(command, value = nil) ⇒ Object

Sends the given command to this engine.

Raises an EngineError if the command fails.



454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
 
# File 'ext/openssl/ossl_engine.c', line 454

static VALUE
ossl_engine_ctrl_cmd(int argc, VALUE *argv, VALUE self)
{
    ENGINE *e;
    VALUE cmd, val;
    int ret;

    GetEngine(self, e);
    rb_scan_args(argc, argv, "11", &cmd, &val);
    ret = ENGINE_ctrl_cmd_string(e, StringValueCStr(cmd),
				 NIL_P(val) ? NULL : StringValueCStr(val), 0);
    if (!ret) ossl_raise(eEngineError, NULL);

    return self;
}

#digest(name) ⇒ OpenSSL::Digest

Returns a new instance of OpenSSL::Digest by name.

Will raise an EngineError if the digest is unavailable.

e = OpenSSL::Engine.by_id("openssl")

#=> #<OpenSSL::Engine id=“openssl” name=“Software engine support”>

e.digest("SHA1")

#=> #<OpenSSL::Digest: da39a3ee5e6b4b0d3255bfef95601890afd80709>

e.digest("zomg")

#=> OpenSSL::Engine::EngineError: no such digest ‘zomg’

Returns:



345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
 
# File 'ext/openssl/ossl_engine.c', line 345

static VALUE
ossl_engine_get_digest(VALUE self, VALUE name)
{
    ENGINE *e;
    const EVP_MD *md, *tmp;
    int nid;

    tmp = EVP_get_digestbyname(StringValueCStr(name));
    if(!tmp) ossl_raise(eEngineError, "no such digest `%"PRIsVALUE"'", name);
    nid = EVP_MD_nid(tmp);
    GetEngine(self, e);
    md = ENGINE_get_digest(e, nid);
    if(!md) ossl_raise(eEngineError, NULL);

    return ossl_digest_new(md);
}

#finish ⇒ nil

Releases all internal structural references for this engine.

May raise an EngineError if the engine is unavailable

Returns:

  • (nil) 


287
288
289
290
291
292
293
294
295
296
 
# File 'ext/openssl/ossl_engine.c', line 287

static VALUE
ossl_engine_finish(VALUE self)
{
    ENGINE *e;

    GetEngine(self, e);
    if(!ENGINE_finish(e)) ossl_raise(eEngineError, NULL);

    return Qnil;
}

#id ⇒ String

Gets the id for this engine.

OpenSSL::Engine.load
OpenSSL::Engine.engines #=> [#<OpenSSL::Engine#>, ...]
OpenSSL::Engine.engines.first.id

#=> “rsax”

Returns:

  • (String) 


251
252
253
254
255
256
257
 
# File 'ext/openssl/ossl_engine.c', line 251

static VALUE
ossl_engine_get_id(VALUE self)
{
    ENGINE *e;
    GetEngine(self, e);
    return rb_str_new2(ENGINE_get_id(e));
}

#inspect ⇒ String

Pretty prints this engine.

Returns:

  • (String) 


516
517
518
519
520
521
522
523
524
 
# File 'ext/openssl/ossl_engine.c', line 516

static VALUE
ossl_engine_inspect(VALUE self)
{
    ENGINE *e;

    GetEngine(self, e);
    return rb_sprintf("#<%"PRIsVALUE" id=\"%s\" name=\"%s\">",
		      rb_obj_class(self), ENGINE_get_id(e), ENGINE_get_name(e));
}

#load_private_key(id = nil, data = nil) ⇒ OpenSSL::PKey

Loads the given private key identified by id and data.

An EngineError is raised of the OpenSSL::PKey is unavailable.

Returns:



371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
 
# File 'ext/openssl/ossl_engine.c', line 371

static VALUE
ossl_engine_load_privkey(int argc, VALUE *argv, VALUE self)
{
    ENGINE *e;
    EVP_PKEY *pkey;
    VALUE id, data, obj;
    char *sid, *sdata;

    rb_scan_args(argc, argv, "02", &id, &data);
    sid = NIL_P(id) ? NULL : StringValueCStr(id);
    sdata = NIL_P(data) ? NULL : StringValueCStr(data);
    GetEngine(self, e);
    pkey = ENGINE_load_private_key(e, sid, NULL, sdata);
    if (!pkey) ossl_raise(eEngineError, NULL);
    obj = ossl_pkey_new(pkey);
    OSSL_PKEY_SET_PRIVATE(obj);

    return obj;
}

#load_public_key(id = nil, data = nil) ⇒ OpenSSL::PKey

Loads the given public key identified by id and data.

An EngineError is raised of the OpenSSL::PKey is unavailable.

Returns:



400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
 
# File 'ext/openssl/ossl_engine.c', line 400

static VALUE
ossl_engine_load_pubkey(int argc, VALUE *argv, VALUE self)
{
    ENGINE *e;
    EVP_PKEY *pkey;
    VALUE id, data;
    char *sid, *sdata;

    rb_scan_args(argc, argv, "02", &id, &data);
    sid = NIL_P(id) ? NULL : StringValueCStr(id);
    sdata = NIL_P(data) ? NULL : StringValueCStr(data);
    GetEngine(self, e);
    pkey = ENGINE_load_public_key(e, sid, NULL, sdata);
    if (!pkey) ossl_raise(eEngineError, NULL);

    return ossl_pkey_new(pkey);
}

#name ⇒ String

Get the descriptive name for this engine.

OpenSSL::Engine.load
OpenSSL::Engine.engines #=> [#<OpenSSL::Engine#>, ...]
OpenSSL::Engine.engines.first.name

#=> “RSAX engine support”

Returns:

  • (String) 


271
272
273
274
275
276
277
 
# File 'ext/openssl/ossl_engine.c', line 271

static VALUE
ossl_engine_get_name(VALUE self)
{
    ENGINE *e;
    GetEngine(self, e);
    return rb_str_new2(ENGINE_get_name(e));
}

#set_default(flag) ⇒ Object

Set the defaults for this engine with the given flag.

These flags are used to control combinations of algorithm methods.

flag can be one of the following, other flags are available depending on your OS.

All flags

0xFFFF

[No flags] 0x0000

See also <openssl/engine.h>



434
435
436
437
438
439
440
441
442
443
444
 
# File 'ext/openssl/ossl_engine.c', line 434

static VALUE
ossl_engine_set_default(VALUE self, VALUE flag)
{
    ENGINE *e;
    int f = NUM2INT(flag);

    GetEngine(self, e);
    ENGINE_set_default(e, f);

    return Qtrue;
}