2 * Copyright 2020-2022 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 * low level APIs are deprecated for public use, but still ok for
14 #include "internal/deprecated.h"
16 #include <openssl/core_dispatch.h>
17 #include <openssl/core_names.h>
18 #include <openssl/core_object.h>
19 #include <openssl/crypto.h>
20 #include <openssl/err.h>
21 #include <openssl/params.h>
22 #include <openssl/pem.h> /* PEM_BUFSIZE and public PEM functions */
23 #include <openssl/pkcs12.h>
24 #include <openssl/x509.h>
25 #include <openssl/proverr.h>
26 #include "internal/cryptlib.h" /* ossl_assert() */
27 #include "internal/asn1.h"
28 #include "crypto/dh.h"
29 #include "crypto/dsa.h"
30 #include "crypto/ec.h"
31 #include "crypto/evp.h"
32 #include "crypto/ecx.h"
33 #include "crypto/rsa.h"
34 #include "crypto/x509.h"
36 #include "prov/implementations.h"
37 #include "endecoder_local.h"
39 struct der2key_ctx_st
; /* Forward declaration */
40 typedef int check_key_fn(void *, struct der2key_ctx_st
*ctx
);
41 typedef void adjust_key_fn(void *, struct der2key_ctx_st
*ctx
);
42 typedef void free_key_fn(void *);
43 typedef void *d2i_PKCS8_fn(void **, const unsigned char **, long,
44 struct der2key_ctx_st
*);
45 struct keytype_desc_st
{
46 const char *keytype_name
;
47 const OSSL_DISPATCH
*fns
; /* Keymgmt (to pilfer functions from) */
49 /* The input structure name */
50 const char *structure_name
;
53 * The EVP_PKEY_xxx type macro. Should be zero for type specific
54 * structures, non-zero when the outermost structure is PKCS#8 or
55 * SubjectPublicKeyInfo. This determines which of the function
56 * pointers below will be used.
60 /* The selection mask for OSSL_FUNC_decoder_does_selection() */
63 /* For type specific decoders, we use the corresponding d2i */
64 d2i_of_void
*d2i_private_key
; /* From type-specific DER */
65 d2i_of_void
*d2i_public_key
; /* From type-specific DER */
66 d2i_of_void
*d2i_key_params
; /* From type-specific DER */
67 d2i_PKCS8_fn
*d2i_PKCS8
; /* Wrapped in a PrivateKeyInfo */
68 d2i_of_void
*d2i_PUBKEY
; /* Wrapped in a SubjectPublicKeyInfo */
71 * For any key, we may need to check that the key meets expectations.
72 * This is useful when the same functions can decode several variants
75 check_key_fn
*check_key
;
78 * For any key, we may need to make provider specific adjustments, such
79 * as ensure the key carries the correct library context.
81 adjust_key_fn
*adjust_key
;
83 free_key_fn
*free_key
;
87 * Context used for DER to key decoding.
89 struct der2key_ctx_st
{
91 const struct keytype_desc_st
*desc
;
92 /* The selection that is passed to der2key_decode() */
94 /* Flag used to signal that a failure is fatal */
95 unsigned int flag_fatal
: 1;
98 typedef void *key_from_pkcs8_t(const PKCS8_PRIV_KEY_INFO
*p8inf
,
99 OSSL_LIB_CTX
*libctx
, const char *propq
);
100 static void *der2key_decode_p8(const unsigned char **input_der
,
101 long input_der_len
, struct der2key_ctx_st
*ctx
,
102 key_from_pkcs8_t
*key_from_pkcs8
)
104 PKCS8_PRIV_KEY_INFO
*p8inf
= NULL
;
105 const X509_ALGOR
*alg
= NULL
;
108 if ((p8inf
= d2i_PKCS8_PRIV_KEY_INFO(NULL
, input_der
, input_der_len
)) != NULL
109 && PKCS8_pkey_get0(NULL
, NULL
, NULL
, &alg
, p8inf
)
110 && OBJ_obj2nid(alg
->algorithm
) == ctx
->desc
->evp_type
)
111 key
= key_from_pkcs8(p8inf
, PROV_LIBCTX_OF(ctx
->provctx
), NULL
);
112 PKCS8_PRIV_KEY_INFO_free(p8inf
);
117 /* ---------------------------------------------------------------------- */
119 static OSSL_FUNC_decoder_freectx_fn der2key_freectx
;
120 static OSSL_FUNC_decoder_decode_fn der2key_decode
;
121 static OSSL_FUNC_decoder_export_object_fn der2key_export_object
;
123 static struct der2key_ctx_st
*
124 der2key_newctx(void *provctx
, const struct keytype_desc_st
*desc
)
126 struct der2key_ctx_st
*ctx
= OPENSSL_zalloc(sizeof(*ctx
));
129 ctx
->provctx
= provctx
;
135 static void der2key_freectx(void *vctx
)
137 struct der2key_ctx_st
*ctx
= vctx
;
142 static int der2key_check_selection(int selection
,
143 const struct keytype_desc_st
*desc
)
146 * The selections are kinda sorta "levels", i.e. each selection given
147 * here is assumed to include those following.
150 OSSL_KEYMGMT_SELECT_PRIVATE_KEY
,
151 OSSL_KEYMGMT_SELECT_PUBLIC_KEY
,
152 OSSL_KEYMGMT_SELECT_ALL_PARAMETERS
156 /* The decoder implementations made here support guessing */
160 for (i
= 0; i
< OSSL_NELEM(checks
); i
++) {
161 int check1
= (selection
& checks
[i
]) != 0;
162 int check2
= (desc
->selection_mask
& checks
[i
]) != 0;
165 * If the caller asked for the currently checked bit(s), return
166 * whether the decoder description says it's supported.
172 /* This should be dead code, but just to be safe... */
176 static int der2key_decode(void *vctx
, OSSL_CORE_BIO
*cin
, int selection
,
177 OSSL_CALLBACK
*data_cb
, void *data_cbarg
,
178 OSSL_PASSPHRASE_CALLBACK
*pw_cb
, void *pw_cbarg
)
180 struct der2key_ctx_st
*ctx
= vctx
;
181 unsigned char *der
= NULL
;
182 const unsigned char *derp
;
187 ctx
->selection
= selection
;
189 * The caller is allowed to specify 0 as a selection mark, to have the
190 * structure and key type guessed. For type-specific structures, this
191 * is not recommended, as some structures are very similar.
192 * Note that 0 isn't the same as OSSL_KEYMGMT_SELECT_ALL, as the latter
193 * signifies a private key structure, where everything else is assumed
194 * to be present as well.
197 selection
= ctx
->desc
->selection_mask
;
198 if ((selection
& ctx
->desc
->selection_mask
) == 0) {
199 ERR_raise(ERR_LIB_PROV
, ERR_R_PASSED_INVALID_ARGUMENT
);
203 ok
= ossl_read_der(ctx
->provctx
, cin
, &der
, &der_len
);
207 ok
= 0; /* Assume that we fail */
210 if ((selection
& OSSL_KEYMGMT_SELECT_PRIVATE_KEY
) != 0) {
212 if (ctx
->desc
->d2i_PKCS8
!= NULL
) {
213 key
= ctx
->desc
->d2i_PKCS8(NULL
, &derp
, der_len
, ctx
);
214 if (ctx
->flag_fatal
) {
215 ERR_clear_last_mark();
218 } else if (ctx
->desc
->d2i_private_key
!= NULL
) {
219 key
= ctx
->desc
->d2i_private_key(NULL
, &derp
, der_len
);
221 if (key
== NULL
&& ctx
->selection
!= 0) {
222 ERR_clear_last_mark();
226 if (key
== NULL
&& (selection
& OSSL_KEYMGMT_SELECT_PUBLIC_KEY
) != 0) {
228 if (ctx
->desc
->d2i_PUBKEY
!= NULL
)
229 key
= ctx
->desc
->d2i_PUBKEY(NULL
, &derp
, der_len
);
231 key
= ctx
->desc
->d2i_public_key(NULL
, &derp
, der_len
);
232 if (key
== NULL
&& ctx
->selection
!= 0) {
233 ERR_clear_last_mark();
237 if (key
== NULL
&& (selection
& OSSL_KEYMGMT_SELECT_ALL_PARAMETERS
) != 0) {
239 if (ctx
->desc
->d2i_key_params
!= NULL
)
240 key
= ctx
->desc
->d2i_key_params(NULL
, &derp
, der_len
);
241 if (key
== NULL
&& ctx
->selection
!= 0) {
242 ERR_clear_last_mark();
247 ERR_clear_last_mark();
252 * Last minute check to see if this was the correct type of key. This
253 * should never lead to a fatal error, i.e. the decoding itself was
254 * correct, it was just an unexpected key type. This is generally for
255 * classes of key types that have subtle variants, like RSA-PSS keys as
256 * opposed to plain RSA keys.
259 && ctx
->desc
->check_key
!= NULL
260 && !ctx
->desc
->check_key(key
, ctx
)) {
261 ctx
->desc
->free_key(key
);
265 if (key
!= NULL
&& ctx
->desc
->adjust_key
!= NULL
)
266 ctx
->desc
->adjust_key(key
, ctx
);
270 * Indicated that we successfully decoded something, or not at all.
271 * Ending up "empty handed" is not an error.
276 * We free memory here so it's not held up during the callback, because
277 * we know the process is recursive and the allocated chunks of memory
284 OSSL_PARAM params
[4];
285 int object_type
= OSSL_OBJECT_PKEY
;
288 OSSL_PARAM_construct_int(OSSL_OBJECT_PARAM_TYPE
, &object_type
);
290 OSSL_PARAM_construct_utf8_string(OSSL_OBJECT_PARAM_DATA_TYPE
,
291 (char *)ctx
->desc
->keytype_name
,
293 /* The address of the key becomes the octet string */
295 OSSL_PARAM_construct_octet_string(OSSL_OBJECT_PARAM_REFERENCE
,
297 params
[3] = OSSL_PARAM_construct_end();
299 ok
= data_cb(params
, data_cbarg
);
303 ctx
->desc
->free_key(key
);
309 static int der2key_export_object(void *vctx
,
310 const void *reference
, size_t reference_sz
,
311 OSSL_CALLBACK
*export_cb
, void *export_cbarg
)
313 struct der2key_ctx_st
*ctx
= vctx
;
314 OSSL_FUNC_keymgmt_export_fn
*export
=
315 ossl_prov_get_keymgmt_export(ctx
->desc
->fns
);
318 if (reference_sz
== sizeof(keydata
) && export
!= NULL
) {
319 /* The contents of the reference is the address to our object */
320 keydata
= *(void **)reference
;
322 return export(keydata
, ctx
->selection
, export_cb
, export_cbarg
);
327 /* ---------------------------------------------------------------------- */
329 #ifndef OPENSSL_NO_DH
330 # define dh_evp_type EVP_PKEY_DH
331 # define dh_d2i_private_key NULL
332 # define dh_d2i_public_key NULL
333 # define dh_d2i_key_params (d2i_of_void *)d2i_DHparams
335 static void *dh_d2i_PKCS8(void **key
, const unsigned char **der
, long der_len
,
336 struct der2key_ctx_st
*ctx
)
338 return der2key_decode_p8(der
, der_len
, ctx
,
339 (key_from_pkcs8_t
*)ossl_dh_key_from_pkcs8
);
342 # define dh_d2i_PUBKEY (d2i_of_void *)ossl_d2i_DH_PUBKEY
343 # define dh_free (free_key_fn *)DH_free
344 # define dh_check NULL
346 static void dh_adjust(void *key
, struct der2key_ctx_st
*ctx
)
348 ossl_dh_set0_libctx(key
, PROV_LIBCTX_OF(ctx
->provctx
));
351 # define dhx_evp_type EVP_PKEY_DHX
352 # define dhx_d2i_private_key NULL
353 # define dhx_d2i_public_key NULL
354 # define dhx_d2i_key_params (d2i_of_void *)d2i_DHxparams
355 # define dhx_d2i_PKCS8 dh_d2i_PKCS8
356 # define dhx_d2i_PUBKEY (d2i_of_void *)ossl_d2i_DHx_PUBKEY
357 # define dhx_free (free_key_fn *)DH_free
358 # define dhx_check NULL
359 # define dhx_adjust dh_adjust
362 /* ---------------------------------------------------------------------- */
364 #ifndef OPENSSL_NO_DSA
365 # define dsa_evp_type EVP_PKEY_DSA
366 # define dsa_d2i_private_key (d2i_of_void *)d2i_DSAPrivateKey
367 # define dsa_d2i_public_key (d2i_of_void *)d2i_DSAPublicKey
368 # define dsa_d2i_key_params (d2i_of_void *)d2i_DSAparams
370 static void *dsa_d2i_PKCS8(void **key
, const unsigned char **der
, long der_len
,
371 struct der2key_ctx_st
*ctx
)
373 return der2key_decode_p8(der
, der_len
, ctx
,
374 (key_from_pkcs8_t
*)ossl_dsa_key_from_pkcs8
);
377 # define dsa_d2i_PUBKEY (d2i_of_void *)d2i_DSA_PUBKEY
378 # define dsa_free (free_key_fn *)DSA_free
379 # define dsa_check NULL
381 static void dsa_adjust(void *key
, struct der2key_ctx_st
*ctx
)
383 ossl_dsa_set0_libctx(key
, PROV_LIBCTX_OF(ctx
->provctx
));
387 /* ---------------------------------------------------------------------- */
389 #ifndef OPENSSL_NO_EC
390 # define ec_evp_type EVP_PKEY_EC
391 # define ec_d2i_private_key (d2i_of_void *)d2i_ECPrivateKey
392 # define ec_d2i_public_key NULL
393 # define ec_d2i_key_params (d2i_of_void *)d2i_ECParameters
395 static void *ec_d2i_PKCS8(void **key
, const unsigned char **der
, long der_len
,
396 struct der2key_ctx_st
*ctx
)
398 return der2key_decode_p8(der
, der_len
, ctx
,
399 (key_from_pkcs8_t
*)ossl_ec_key_from_pkcs8
);
402 # define ec_d2i_PUBKEY (d2i_of_void *)d2i_EC_PUBKEY
403 # define ec_free (free_key_fn *)EC_KEY_free
405 static int ec_check(void *key
, struct der2key_ctx_st
*ctx
)
407 /* We're trying to be clever by comparing two truths */
409 int sm2
= (EC_KEY_get_flags(key
) & EC_FLAG_SM2_RANGE
) != 0;
411 return sm2
== (ctx
->desc
->evp_type
== EVP_PKEY_SM2
);
414 static void ec_adjust(void *key
, struct der2key_ctx_st
*ctx
)
416 ossl_ec_key_set0_libctx(key
, PROV_LIBCTX_OF(ctx
->provctx
));
420 * ED25519, ED448, X25519, X448 only implement PKCS#8 and SubjectPublicKeyInfo,
421 * so no d2i functions to be had.
424 static void *ecx_d2i_PKCS8(void **key
, const unsigned char **der
, long der_len
,
425 struct der2key_ctx_st
*ctx
)
427 return der2key_decode_p8(der
, der_len
, ctx
,
428 (key_from_pkcs8_t
*)ossl_ecx_key_from_pkcs8
);
431 static void ecx_key_adjust(void *key
, struct der2key_ctx_st
*ctx
)
433 ossl_ecx_key_set0_libctx(key
, PROV_LIBCTX_OF(ctx
->provctx
));
436 # define ed25519_evp_type EVP_PKEY_ED25519
437 # define ed25519_d2i_private_key NULL
438 # define ed25519_d2i_public_key NULL
439 # define ed25519_d2i_key_params NULL
440 # define ed25519_d2i_PKCS8 ecx_d2i_PKCS8
441 # define ed25519_d2i_PUBKEY (d2i_of_void *)ossl_d2i_ED25519_PUBKEY
442 # define ed25519_free (free_key_fn *)ossl_ecx_key_free
443 # define ed25519_check NULL
444 # define ed25519_adjust ecx_key_adjust
446 # define ed448_evp_type EVP_PKEY_ED448
447 # define ed448_d2i_private_key NULL
448 # define ed448_d2i_public_key NULL
449 # define ed448_d2i_key_params NULL
450 # define ed448_d2i_PKCS8 ecx_d2i_PKCS8
451 # define ed448_d2i_PUBKEY (d2i_of_void *)ossl_d2i_ED448_PUBKEY
452 # define ed448_free (free_key_fn *)ossl_ecx_key_free
453 # define ed448_check NULL
454 # define ed448_adjust ecx_key_adjust
456 # define x25519_evp_type EVP_PKEY_X25519
457 # define x25519_d2i_private_key NULL
458 # define x25519_d2i_public_key NULL
459 # define x25519_d2i_key_params NULL
460 # define x25519_d2i_PKCS8 ecx_d2i_PKCS8
461 # define x25519_d2i_PUBKEY (d2i_of_void *)ossl_d2i_X25519_PUBKEY
462 # define x25519_free (free_key_fn *)ossl_ecx_key_free
463 # define x25519_check NULL
464 # define x25519_adjust ecx_key_adjust
466 # define x448_evp_type EVP_PKEY_X448
467 # define x448_d2i_private_key NULL
468 # define x448_d2i_public_key NULL
469 # define x448_d2i_key_params NULL
470 # define x448_d2i_PKCS8 ecx_d2i_PKCS8
471 # define x448_d2i_PUBKEY (d2i_of_void *)ossl_d2i_X448_PUBKEY
472 # define x448_free (free_key_fn *)ossl_ecx_key_free
473 # define x448_check NULL
474 # define x448_adjust ecx_key_adjust
476 # ifndef OPENSSL_NO_SM2
477 # define sm2_evp_type EVP_PKEY_SM2
478 # define sm2_d2i_private_key (d2i_of_void *)d2i_ECPrivateKey
479 # define sm2_d2i_public_key NULL
480 # define sm2_d2i_key_params (d2i_of_void *)d2i_ECParameters
482 static void *sm2_d2i_PKCS8(void **key
, const unsigned char **der
, long der_len
,
483 struct der2key_ctx_st
*ctx
)
485 return der2key_decode_p8(der
, der_len
, ctx
,
486 (key_from_pkcs8_t
*)ossl_ec_key_from_pkcs8
);
489 # define sm2_d2i_PUBKEY (d2i_of_void *)d2i_EC_PUBKEY
490 # define sm2_free (free_key_fn *)EC_KEY_free
491 # define sm2_check ec_check
492 # define sm2_adjust ec_adjust
496 /* ---------------------------------------------------------------------- */
498 #define rsa_evp_type EVP_PKEY_RSA
499 #define rsa_d2i_private_key (d2i_of_void *)d2i_RSAPrivateKey
500 #define rsa_d2i_public_key (d2i_of_void *)d2i_RSAPublicKey
501 #define rsa_d2i_key_params NULL
503 static void *rsa_d2i_PKCS8(void **key
, const unsigned char **der
, long der_len
,
504 struct der2key_ctx_st
*ctx
)
506 return der2key_decode_p8(der
, der_len
, ctx
,
507 (key_from_pkcs8_t
*)ossl_rsa_key_from_pkcs8
);
510 #define rsa_d2i_PUBKEY (d2i_of_void *)d2i_RSA_PUBKEY
511 #define rsa_free (free_key_fn *)RSA_free
513 static int rsa_check(void *key
, struct der2key_ctx_st
*ctx
)
515 switch (RSA_test_flags(key
, RSA_FLAG_TYPE_MASK
)) {
516 case RSA_FLAG_TYPE_RSA
:
517 return ctx
->desc
->evp_type
== EVP_PKEY_RSA
;
518 case RSA_FLAG_TYPE_RSASSAPSS
:
519 return ctx
->desc
->evp_type
== EVP_PKEY_RSA_PSS
;
522 /* Currently unsupported RSA key type */
526 static void rsa_adjust(void *key
, struct der2key_ctx_st
*ctx
)
528 ossl_rsa_set0_libctx(key
, PROV_LIBCTX_OF(ctx
->provctx
));
531 #define rsapss_evp_type EVP_PKEY_RSA_PSS
532 #define rsapss_d2i_private_key (d2i_of_void *)d2i_RSAPrivateKey
533 #define rsapss_d2i_public_key (d2i_of_void *)d2i_RSAPublicKey
534 #define rsapss_d2i_key_params NULL
535 #define rsapss_d2i_PKCS8 rsa_d2i_PKCS8
536 #define rsapss_d2i_PUBKEY (d2i_of_void *)d2i_RSA_PUBKEY
537 #define rsapss_free (free_key_fn *)RSA_free
538 #define rsapss_check rsa_check
539 #define rsapss_adjust rsa_adjust
541 /* ---------------------------------------------------------------------- */
544 * The DO_ macros help define the selection mask and the method functions
545 * for each kind of object we want to decode.
547 #define DO_type_specific_keypair(keytype) \
548 "type-specific", keytype##_evp_type, \
549 ( OSSL_KEYMGMT_SELECT_KEYPAIR ), \
550 keytype##_d2i_private_key, \
551 keytype##_d2i_public_key, \
559 #define DO_type_specific_pub(keytype) \
560 "type-specific", keytype##_evp_type, \
561 ( OSSL_KEYMGMT_SELECT_PUBLIC_KEY ), \
563 keytype##_d2i_public_key, \
571 #define DO_type_specific_priv(keytype) \
572 "type-specific", keytype##_evp_type, \
573 ( OSSL_KEYMGMT_SELECT_PRIVATE_KEY ), \
574 keytype##_d2i_private_key, \
583 #define DO_type_specific_params(keytype) \
584 "type-specific", keytype##_evp_type, \
585 ( OSSL_KEYMGMT_SELECT_ALL_PARAMETERS ), \
588 keytype##_d2i_key_params, \
595 #define DO_type_specific(keytype) \
596 "type-specific", keytype##_evp_type, \
597 ( OSSL_KEYMGMT_SELECT_ALL ), \
598 keytype##_d2i_private_key, \
599 keytype##_d2i_public_key, \
600 keytype##_d2i_key_params, \
607 #define DO_type_specific_no_pub(keytype) \
608 "type-specific", keytype##_evp_type, \
609 ( OSSL_KEYMGMT_SELECT_PRIVATE_KEY \
610 | OSSL_KEYMGMT_SELECT_ALL_PARAMETERS ), \
611 keytype##_d2i_private_key, \
613 keytype##_d2i_key_params, \
620 #define DO_PrivateKeyInfo(keytype) \
621 "PrivateKeyInfo", keytype##_evp_type, \
622 ( OSSL_KEYMGMT_SELECT_PRIVATE_KEY ), \
626 keytype##_d2i_PKCS8, \
632 #define DO_SubjectPublicKeyInfo(keytype) \
633 "SubjectPublicKeyInfo", keytype##_evp_type, \
634 ( OSSL_KEYMGMT_SELECT_PUBLIC_KEY ), \
639 keytype##_d2i_PUBKEY, \
644 #define DO_DH(keytype) \
645 "DH", keytype##_evp_type, \
646 ( OSSL_KEYMGMT_SELECT_ALL_PARAMETERS ), \
649 keytype##_d2i_key_params, \
656 #define DO_DHX(keytype) \
657 "DHX", keytype##_evp_type, \
658 ( OSSL_KEYMGMT_SELECT_ALL_PARAMETERS ), \
661 keytype##_d2i_key_params, \
668 #define DO_DSA(keytype) \
669 "DSA", keytype##_evp_type, \
670 ( OSSL_KEYMGMT_SELECT_ALL ), \
671 keytype##_d2i_private_key, \
672 keytype##_d2i_public_key, \
673 keytype##_d2i_key_params, \
680 #define DO_EC(keytype) \
681 "EC", keytype##_evp_type, \
682 ( OSSL_KEYMGMT_SELECT_PRIVATE_KEY \
683 | OSSL_KEYMGMT_SELECT_ALL_PARAMETERS ), \
684 keytype##_d2i_private_key, \
686 keytype##_d2i_key_params, \
693 #define DO_RSA(keytype) \
694 "RSA", keytype##_evp_type, \
695 ( OSSL_KEYMGMT_SELECT_KEYPAIR ), \
696 keytype##_d2i_private_key, \
697 keytype##_d2i_public_key, \
706 * MAKE_DECODER is the single driver for creating OSSL_DISPATCH tables.
707 * It takes the following arguments:
709 * keytype_name The implementation key type as a string.
710 * keytype The implementation key type. This must correspond exactly
711 * to our existing keymgmt keytype names... in other words,
712 * there must exist an ossl_##keytype##_keymgmt_functions.
713 * type The type name for the set of functions that implement the
714 * decoder for the key type. This isn't necessarily the same
715 * as keytype. For example, the key types ed25519, ed448,
716 * x25519 and x448 are all handled by the same functions with
717 * the common type name ecx.
718 * kind The kind of support to implement. This translates into
719 * the DO_##kind macros above, to populate the keytype_desc_st
722 #define MAKE_DECODER(keytype_name, keytype, type, kind) \
723 static const struct keytype_desc_st kind##_##keytype##_desc = \
724 { keytype_name, ossl_##keytype##_keymgmt_functions, \
725 DO_##kind(keytype) }; \
727 static OSSL_FUNC_decoder_newctx_fn kind##_der2##keytype##_newctx; \
729 static void *kind##_der2##keytype##_newctx(void *provctx) \
731 return der2key_newctx(provctx, &kind##_##keytype##_desc); \
733 static int kind##_der2##keytype##_does_selection(void *provctx, \
736 return der2key_check_selection(selection, \
737 &kind##_##keytype##_desc); \
739 const OSSL_DISPATCH \
740 ossl_##kind##_der_to_##keytype##_decoder_functions[] = { \
741 { OSSL_FUNC_DECODER_NEWCTX, \
742 (void (*)(void))kind##_der2##keytype##_newctx }, \
743 { OSSL_FUNC_DECODER_FREECTX, \
744 (void (*)(void))der2key_freectx }, \
745 { OSSL_FUNC_DECODER_DOES_SELECTION, \
746 (void (*)(void))kind##_der2##keytype##_does_selection }, \
747 { OSSL_FUNC_DECODER_DECODE, \
748 (void (*)(void))der2key_decode }, \
749 { OSSL_FUNC_DECODER_EXPORT_OBJECT, \
750 (void (*)(void))der2key_export_object }, \
754 #ifndef OPENSSL_NO_DH
755 MAKE_DECODER("DH", dh
, dh
, PrivateKeyInfo
);
756 MAKE_DECODER("DH", dh
, dh
, SubjectPublicKeyInfo
);
757 MAKE_DECODER("DH", dh
, dh
, type_specific_params
);
758 MAKE_DECODER("DH", dh
, dh
, DH
);
759 MAKE_DECODER("DHX", dhx
, dhx
, PrivateKeyInfo
);
760 MAKE_DECODER("DHX", dhx
, dhx
, SubjectPublicKeyInfo
);
761 MAKE_DECODER("DHX", dhx
, dhx
, type_specific_params
);
762 MAKE_DECODER("DHX", dhx
, dhx
, DHX
);
764 #ifndef OPENSSL_NO_DSA
765 MAKE_DECODER("DSA", dsa
, dsa
, PrivateKeyInfo
);
766 MAKE_DECODER("DSA", dsa
, dsa
, SubjectPublicKeyInfo
);
767 MAKE_DECODER("DSA", dsa
, dsa
, type_specific
);
768 MAKE_DECODER("DSA", dsa
, dsa
, DSA
);
770 #ifndef OPENSSL_NO_EC
771 MAKE_DECODER("EC", ec
, ec
, PrivateKeyInfo
);
772 MAKE_DECODER("EC", ec
, ec
, SubjectPublicKeyInfo
);
773 MAKE_DECODER("EC", ec
, ec
, type_specific_no_pub
);
774 MAKE_DECODER("EC", ec
, ec
, EC
);
775 MAKE_DECODER("X25519", x25519
, ecx
, PrivateKeyInfo
);
776 MAKE_DECODER("X25519", x25519
, ecx
, SubjectPublicKeyInfo
);
777 MAKE_DECODER("X448", x448
, ecx
, PrivateKeyInfo
);
778 MAKE_DECODER("X448", x448
, ecx
, SubjectPublicKeyInfo
);
779 MAKE_DECODER("ED25519", ed25519
, ecx
, PrivateKeyInfo
);
780 MAKE_DECODER("ED25519", ed25519
, ecx
, SubjectPublicKeyInfo
);
781 MAKE_DECODER("ED448", ed448
, ecx
, PrivateKeyInfo
);
782 MAKE_DECODER("ED448", ed448
, ecx
, SubjectPublicKeyInfo
);
783 # ifndef OPENSSL_NO_SM2
784 MAKE_DECODER("SM2", sm2
, ec
, PrivateKeyInfo
);
785 MAKE_DECODER("SM2", sm2
, ec
, SubjectPublicKeyInfo
);
788 MAKE_DECODER("RSA", rsa
, rsa
, PrivateKeyInfo
);
789 MAKE_DECODER("RSA", rsa
, rsa
, SubjectPublicKeyInfo
);
790 MAKE_DECODER("RSA", rsa
, rsa
, type_specific_keypair
);
791 MAKE_DECODER("RSA", rsa
, rsa
, RSA
);
792 MAKE_DECODER("RSA-PSS", rsapss
, rsapss
, PrivateKeyInfo
);
793 MAKE_DECODER("RSA-PSS", rsapss
, rsapss
, SubjectPublicKeyInfo
);