2 * Copyright 1995-2020 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 * EVP _meth_ APIs are deprecated for public use, but still ok for
14 #include "internal/deprecated.h"
17 #include "internal/cryptlib.h"
18 #include <openssl/evp.h>
19 #include <openssl/objects.h>
20 #include <openssl/params.h>
21 #include <openssl/core_names.h>
22 #include <openssl/dh.h>
23 #include <openssl/ec.h>
24 #include "crypto/evp.h"
25 #include "crypto/asn1.h"
26 #include "internal/provider.h"
27 #include "evp_local.h"
29 #if !defined(FIPS_MODULE)
30 int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
32 return evp_cipher_param_to_asn1_ex(c, type, NULL);
35 int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
37 return evp_cipher_asn1_to_param_ex(c, type, NULL);
40 int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *ctx, ASN1_TYPE *type)
46 unsigned char iv[EVP_MAX_IV_LENGTH];
48 l = EVP_CIPHER_CTX_iv_length(ctx);
49 if (!ossl_assert(l <= sizeof(iv)))
51 i = ASN1_TYPE_get_octetstring(type, iv, l);
55 if (!EVP_CipherInit_ex(ctx, NULL, NULL, NULL, iv, -1))
61 int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
65 unsigned char *oiv = NULL;
68 oiv = (unsigned char *)EVP_CIPHER_CTX_original_iv(c);
69 j = EVP_CIPHER_CTX_iv_length(c);
70 OPENSSL_assert(j <= sizeof(c->iv));
71 i = ASN1_TYPE_set_octetstring(type, oiv, j);
76 int evp_cipher_param_to_asn1_ex(EVP_CIPHER_CTX *c, ASN1_TYPE *type,
77 evp_cipher_aead_asn1_params *asn1_params)
79 int ret = -1; /* Assume the worst */
80 const EVP_CIPHER *cipher = c->cipher;
83 * For legacy implementations, we detect custom AlgorithmIdentifier
84 * parameter handling by checking if the function pointer
85 * cipher->set_asn1_parameters is set. We know that this pointer
86 * is NULL for provided implementations.
88 * Otherwise, for any implementation, we check the flag
89 * EVP_CIPH_FLAG_CUSTOM_ASN1. If it isn't set, we apply
90 * default AI parameter extraction.
92 * Otherwise, for provided implementations, we convert |type| to
93 * a DER encoded blob and pass to the implementation in OSSL_PARAM
96 * If none of the above applies, this operation is unsupported.
98 if (cipher->set_asn1_parameters != NULL) {
99 ret = cipher->set_asn1_parameters(c, type);
100 } else if ((EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_CUSTOM_ASN1) == 0) {
101 switch (EVP_CIPHER_mode(cipher)) {
102 case EVP_CIPH_WRAP_MODE:
103 if (EVP_CIPHER_is_a(cipher, SN_id_smime_alg_CMS3DESwrap))
104 ASN1_TYPE_set(type, V_ASN1_NULL, NULL);
108 case EVP_CIPH_GCM_MODE:
109 ret = evp_cipher_set_asn1_aead_params(c, type, asn1_params);
112 case EVP_CIPH_CCM_MODE:
113 case EVP_CIPH_XTS_MODE:
114 case EVP_CIPH_OCB_MODE:
119 ret = EVP_CIPHER_set_asn1_iv(c, type);
121 } else if (cipher->prov != NULL) {
122 OSSL_PARAM params[3], *p = params;
123 unsigned char *der = NULL, *derp;
126 * We make two passes, the first to get the appropriate buffer size,
127 * and the second to get the actual value.
129 *p++ = OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_ALG_ID,
131 *p = OSSL_PARAM_construct_end();
133 if (!EVP_CIPHER_CTX_get_params(c, params))
136 /* ... but, we should get a return size too! */
137 if (OSSL_PARAM_modified(params)
138 && params[0].return_size != 0
139 && (der = OPENSSL_malloc(params[0].return_size)) != NULL) {
140 params[0].data = der;
141 params[0].data_size = params[0].return_size;
142 OSSL_PARAM_set_all_unmodified(params);
144 if (EVP_CIPHER_CTX_get_params(c, params)
145 && OSSL_PARAM_modified(params)
146 && d2i_ASN1_TYPE(&type, (const unsigned char **)&derp,
147 params[0].return_size) != NULL) {
158 ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_CIPHER);
160 ERR_raise(ERR_LIB_EVP, EVP_R_CIPHER_PARAMETER_ERROR);
166 int evp_cipher_asn1_to_param_ex(EVP_CIPHER_CTX *c, ASN1_TYPE *type,
167 evp_cipher_aead_asn1_params *asn1_params)
169 int ret = -1; /* Assume the worst */
170 const EVP_CIPHER *cipher = c->cipher;
173 * For legacy implementations, we detect custom AlgorithmIdentifier
174 * parameter handling by checking if there the function pointer
175 * cipher->get_asn1_parameters is set. We know that this pointer
176 * is NULL for provided implementations.
178 * Otherwise, for any implementation, we check the flag
179 * EVP_CIPH_FLAG_CUSTOM_ASN1. If it isn't set, we apply
180 * default AI parameter creation.
182 * Otherwise, for provided implementations, we get the AI parameter
183 * in DER encoded form from the implementation by requesting the
184 * appropriate OSSL_PARAM and converting the result to a ASN1_TYPE.
186 * If none of the above applies, this operation is unsupported.
188 if (cipher->get_asn1_parameters != NULL) {
189 ret = cipher->get_asn1_parameters(c, type);
190 } else if ((EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_CUSTOM_ASN1) == 0) {
191 switch (EVP_CIPHER_mode(cipher)) {
192 case EVP_CIPH_WRAP_MODE:
196 case EVP_CIPH_GCM_MODE:
197 ret = evp_cipher_get_asn1_aead_params(c, type, asn1_params);
200 case EVP_CIPH_CCM_MODE:
201 case EVP_CIPH_XTS_MODE:
202 case EVP_CIPH_OCB_MODE:
207 ret = EVP_CIPHER_get_asn1_iv(c, type);
209 } else if (cipher->prov != NULL) {
210 OSSL_PARAM params[3], *p = params;
211 unsigned char *der = NULL;
214 if ((derl = i2d_ASN1_TYPE(type, &der)) >= 0) {
216 OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_ALG_ID,
218 *p = OSSL_PARAM_construct_end();
219 if (EVP_CIPHER_CTX_set_params(c, params))
228 ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_CIPHER);
230 ERR_raise(ERR_LIB_EVP, EVP_R_CIPHER_PARAMETER_ERROR);
236 int evp_cipher_get_asn1_aead_params(EVP_CIPHER_CTX *c, ASN1_TYPE *type,
237 evp_cipher_aead_asn1_params *asn1_params)
241 unsigned char iv[EVP_MAX_IV_LENGTH];
243 if (type == NULL || asn1_params == NULL)
246 i = asn1_type_get_octetstring_int(type, &tl, NULL, EVP_MAX_IV_LENGTH);
249 asn1_type_get_octetstring_int(type, &tl, iv, i);
251 memcpy(asn1_params->iv, iv, i);
252 asn1_params->iv_len = i;
257 int evp_cipher_set_asn1_aead_params(EVP_CIPHER_CTX *c, ASN1_TYPE *type,
258 evp_cipher_aead_asn1_params *asn1_params)
260 if (type == NULL || asn1_params == NULL)
263 return asn1_type_set_octetstring_int(type, asn1_params->tag_len,
264 asn1_params->iv, asn1_params->iv_len);
266 #endif /* !defined(FIPS_MODULE) */
268 /* Convert the various cipher NIDs and dummies to a proper OID NID */
269 int EVP_CIPHER_type(const EVP_CIPHER *ctx)
272 nid = EVP_CIPHER_nid(ctx);
287 case NID_aes_128_cfb128:
288 case NID_aes_128_cfb8:
289 case NID_aes_128_cfb1:
291 return NID_aes_128_cfb128;
293 case NID_aes_192_cfb128:
294 case NID_aes_192_cfb8:
295 case NID_aes_192_cfb1:
297 return NID_aes_192_cfb128;
299 case NID_aes_256_cfb128:
300 case NID_aes_256_cfb8:
301 case NID_aes_256_cfb1:
303 return NID_aes_256_cfb128;
309 return NID_des_cfb64;
311 case NID_des_ede3_cfb64:
312 case NID_des_ede3_cfb8:
313 case NID_des_ede3_cfb1:
315 return NID_des_cfb64;
322 /* Check it has an OID and it is valid */
323 ASN1_OBJECT *otmp = OBJ_nid2obj(nid);
325 if (OBJ_get0_data(otmp) == NULL)
327 ASN1_OBJECT_free(otmp);
334 int evp_cipher_cache_constants(EVP_CIPHER *cipher)
340 unsigned int mode = 0;
341 unsigned long flags = 0;
342 OSSL_PARAM params[6];
344 params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_BLOCK_SIZE, &blksz);
345 params[1] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_IVLEN, &ivlen);
346 params[2] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_KEYLEN, &keylen);
347 params[3] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_MODE, &mode);
348 params[4] = OSSL_PARAM_construct_ulong(OSSL_CIPHER_PARAM_FLAGS, &flags);
349 params[5] = OSSL_PARAM_construct_end();
350 ok = evp_do_ciph_getparams(cipher, params);
352 /* Provided implementations may have a custom cipher_cipher */
353 if (cipher->prov != NULL && cipher->ccipher != NULL)
354 flags |= EVP_CIPH_FLAG_CUSTOM_CIPHER;
355 cipher->block_size = blksz;
356 cipher->iv_len = ivlen;
357 cipher->key_len = keylen;
358 cipher->flags = flags | mode;
363 int EVP_CIPHER_block_size(const EVP_CIPHER *cipher)
365 return cipher->block_size;
368 int EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx)
370 return EVP_CIPHER_block_size(ctx->cipher);
373 int EVP_CIPHER_impl_ctx_size(const EVP_CIPHER *e)
378 int EVP_Cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
379 const unsigned char *in, unsigned int inl)
381 if (ctx->cipher->prov != NULL) {
383 * If the provided implementation has a ccipher function, we use it,
384 * and translate its return value like this: 0 => -1, 1 => outlen
386 * Otherwise, we call the cupdate function if in != NULL, or cfinal
387 * if in == NULL. Regardless of which, we return what we got.
391 size_t blocksize = EVP_CIPHER_CTX_block_size(ctx);
393 if (ctx->cipher->ccipher != NULL)
394 ret = ctx->cipher->ccipher(ctx->provctx, out, &outl,
395 inl + (blocksize == 1 ? 0 : blocksize),
399 ret = ctx->cipher->cupdate(ctx->provctx, out, &outl,
400 inl + (blocksize == 1 ? 0 : blocksize),
403 ret = ctx->cipher->cfinal(ctx->provctx, out, &outl,
404 blocksize == 1 ? 0 : blocksize);
409 return ctx->cipher->do_cipher(ctx, out, in, inl);
412 const EVP_CIPHER *EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx)
417 int EVP_CIPHER_CTX_encrypting(const EVP_CIPHER_CTX *ctx)
422 unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher)
424 return cipher->flags;
427 void *EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx)
429 return ctx->app_data;
432 void EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data)
434 ctx->app_data = data;
437 void *EVP_CIPHER_CTX_get_cipher_data(const EVP_CIPHER_CTX *ctx)
439 return ctx->cipher_data;
442 void *EVP_CIPHER_CTX_set_cipher_data(EVP_CIPHER_CTX *ctx, void *cipher_data)
444 void *old_cipher_data;
446 old_cipher_data = ctx->cipher_data;
447 ctx->cipher_data = cipher_data;
449 return old_cipher_data;
452 int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher)
454 return cipher->iv_len;
457 int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx)
459 int rv, len = EVP_CIPHER_iv_length(ctx->cipher);
461 OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
463 params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_IVLEN, &v);
464 rv = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
465 if (rv == EVP_CTRL_RET_UNSUPPORTED)
467 return rv != 0 ? (int)v : -1;
468 /* TODO (3.0) Remove legacy support */
470 if ((EVP_CIPHER_flags(ctx->cipher) & EVP_CIPH_CUSTOM_IV_LENGTH) != 0) {
471 rv = EVP_CIPHER_CTX_ctrl((EVP_CIPHER_CTX *)ctx, EVP_CTRL_GET_IVLEN,
473 return (rv == 1) ? len : -1;
478 int EVP_CIPHER_CTX_tag_length(const EVP_CIPHER_CTX *ctx)
482 OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
484 params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_AEAD_TAGLEN, &v);
485 ret = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
486 return ret == 1 ? (int)v : 0;
489 #ifndef OPENSSL_NO_DEPRECATED_3_0
490 const unsigned char *EVP_CIPHER_CTX_original_iv(const EVP_CIPHER_CTX *ctx)
493 const unsigned char *v = ctx->oiv;
494 OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
497 OSSL_PARAM_construct_octet_ptr(OSSL_CIPHER_PARAM_IV,
498 (void **)&v, sizeof(ctx->oiv));
499 ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
501 return ok != 0 ? v : NULL;
505 * OSSL_PARAM_OCTET_PTR gets us the pointer to the running IV in the provider
507 const unsigned char *EVP_CIPHER_CTX_iv(const EVP_CIPHER_CTX *ctx)
510 const unsigned char *v = ctx->iv;
511 OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
514 OSSL_PARAM_construct_octet_ptr(OSSL_CIPHER_PARAM_UPDATED_IV,
515 (void **)&v, sizeof(ctx->iv));
516 ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
518 return ok != 0 ? v : NULL;
521 unsigned char *EVP_CIPHER_CTX_iv_noconst(EVP_CIPHER_CTX *ctx)
524 unsigned char *v = ctx->iv;
525 OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
528 OSSL_PARAM_construct_octet_ptr(OSSL_CIPHER_PARAM_UPDATED_IV,
529 (void **)&v, sizeof(ctx->iv));
530 ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
532 return ok != 0 ? v : NULL;
534 #endif /* OPENSSL_NO_DEPRECATED_3_0_0 */
536 int EVP_CIPHER_CTX_get_updated_iv(EVP_CIPHER_CTX *ctx, void *buf, size_t len)
538 OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
541 OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_UPDATED_IV, buf, len);
542 return evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
545 int EVP_CIPHER_CTX_get_original_iv(EVP_CIPHER_CTX *ctx, void *buf, size_t len)
547 OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
550 OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_IV, buf, len);
551 return evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
554 unsigned char *EVP_CIPHER_CTX_buf_noconst(EVP_CIPHER_CTX *ctx)
559 int EVP_CIPHER_CTX_num(const EVP_CIPHER_CTX *ctx)
562 unsigned int v = (unsigned int)ctx->num;
563 OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
565 params[0] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_NUM, &v);
566 ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
568 return ok != 0 ? (int)v : EVP_CTRL_RET_UNSUPPORTED;
571 int EVP_CIPHER_CTX_set_num(EVP_CIPHER_CTX *ctx, int num)
574 unsigned int n = (unsigned int)num;
575 OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
577 params[0] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_NUM, &n);
578 ok = evp_do_ciph_ctx_setparams(ctx->cipher, ctx->provctx, params);
585 int EVP_CIPHER_key_length(const EVP_CIPHER *cipher)
587 return cipher->key_len;
590 int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx)
593 size_t v = ctx->key_len;
594 OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
596 params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_KEYLEN, &v);
597 ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
599 return ok != 0 ? (int)v : EVP_CTRL_RET_UNSUPPORTED;
602 int EVP_CIPHER_nid(const EVP_CIPHER *cipher)
607 int EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx)
609 return ctx->cipher->nid;
612 int EVP_CIPHER_is_a(const EVP_CIPHER *cipher, const char *name)
614 if (cipher->prov != NULL)
615 return evp_is_a(cipher->prov, cipher->name_id, NULL, name);
616 return evp_is_a(NULL, 0, EVP_CIPHER_name(cipher), name);
619 int EVP_CIPHER_number(const EVP_CIPHER *cipher)
621 return cipher->name_id;
624 const char *EVP_CIPHER_name(const EVP_CIPHER *cipher)
626 if (cipher->prov != NULL)
627 return evp_first_name(cipher->prov, cipher->name_id);
629 return OBJ_nid2sn(EVP_CIPHER_nid(cipher));
635 void EVP_CIPHER_names_do_all(const EVP_CIPHER *cipher,
636 void (*fn)(const char *name, void *data),
639 if (cipher->prov != NULL)
640 evp_names_do_all(cipher->prov, cipher->name_id, fn, data);
643 const OSSL_PROVIDER *EVP_CIPHER_provider(const EVP_CIPHER *cipher)
648 int EVP_CIPHER_mode(const EVP_CIPHER *cipher)
650 return EVP_CIPHER_flags(cipher) & EVP_CIPH_MODE;
653 int EVP_MD_is_a(const EVP_MD *md, const char *name)
655 if (md->prov != NULL)
656 return evp_is_a(md->prov, md->name_id, NULL, name);
657 return evp_is_a(NULL, 0, EVP_MD_name(md), name);
660 int EVP_MD_number(const EVP_MD *md)
665 const char *EVP_MD_name(const EVP_MD *md)
667 if (md->prov != NULL)
668 return evp_first_name(md->prov, md->name_id);
670 return OBJ_nid2sn(EVP_MD_nid(md));
676 void EVP_MD_names_do_all(const EVP_MD *md,
677 void (*fn)(const char *name, void *data),
680 if (md->prov != NULL)
681 evp_names_do_all(md->prov, md->name_id, fn, data);
684 const OSSL_PROVIDER *EVP_MD_provider(const EVP_MD *md)
689 int EVP_MD_block_size(const EVP_MD *md)
691 return md->block_size;
694 int EVP_MD_type(const EVP_MD *md)
699 int EVP_MD_pkey_type(const EVP_MD *md)
701 return md->pkey_type;
704 int EVP_MD_size(const EVP_MD *md)
707 ERR_raise(ERR_LIB_EVP, EVP_R_MESSAGE_DIGEST_IS_NULL);
713 unsigned long EVP_MD_flags(const EVP_MD *md)
718 EVP_MD *EVP_MD_meth_new(int md_type, int pkey_type)
720 EVP_MD *md = evp_md_new();
724 md->pkey_type = pkey_type;
729 EVP_MD *EVP_MD_meth_dup(const EVP_MD *md)
734 * Non-legacy EVP_MDs can't be duplicated like this.
735 * Use EVP_MD_up_ref() instead.
737 if (md->prov != NULL)
740 if ((to = EVP_MD_meth_new(md->type, md->pkey_type)) != NULL) {
741 CRYPTO_RWLOCK *lock = to->lock;
743 memcpy(to, md, sizeof(*to));
749 void EVP_MD_meth_free(EVP_MD *md)
753 int EVP_MD_meth_set_input_blocksize(EVP_MD *md, int blocksize)
755 if (md->block_size != 0)
758 md->block_size = blocksize;
761 int EVP_MD_meth_set_result_size(EVP_MD *md, int resultsize)
763 if (md->md_size != 0)
766 md->md_size = resultsize;
769 int EVP_MD_meth_set_app_datasize(EVP_MD *md, int datasize)
771 if (md->ctx_size != 0)
774 md->ctx_size = datasize;
777 int EVP_MD_meth_set_flags(EVP_MD *md, unsigned long flags)
785 int EVP_MD_meth_set_init(EVP_MD *md, int (*init)(EVP_MD_CTX *ctx))
787 if (md->init != NULL)
793 int EVP_MD_meth_set_update(EVP_MD *md, int (*update)(EVP_MD_CTX *ctx,
797 if (md->update != NULL)
803 int EVP_MD_meth_set_final(EVP_MD *md, int (*final)(EVP_MD_CTX *ctx,
806 if (md->final != NULL)
812 int EVP_MD_meth_set_copy(EVP_MD *md, int (*copy)(EVP_MD_CTX *to,
813 const EVP_MD_CTX *from))
815 if (md->copy != NULL)
821 int EVP_MD_meth_set_cleanup(EVP_MD *md, int (*cleanup)(EVP_MD_CTX *ctx))
823 if (md->cleanup != NULL)
826 md->cleanup = cleanup;
829 int EVP_MD_meth_set_ctrl(EVP_MD *md, int (*ctrl)(EVP_MD_CTX *ctx, int cmd,
832 if (md->md_ctrl != NULL)
839 int EVP_MD_meth_get_input_blocksize(const EVP_MD *md)
841 return md->block_size;
843 int EVP_MD_meth_get_result_size(const EVP_MD *md)
847 int EVP_MD_meth_get_app_datasize(const EVP_MD *md)
851 unsigned long EVP_MD_meth_get_flags(const EVP_MD *md)
855 int (*EVP_MD_meth_get_init(const EVP_MD *md))(EVP_MD_CTX *ctx)
859 int (*EVP_MD_meth_get_update(const EVP_MD *md))(EVP_MD_CTX *ctx,
865 int (*EVP_MD_meth_get_final(const EVP_MD *md))(EVP_MD_CTX *ctx,
870 int (*EVP_MD_meth_get_copy(const EVP_MD *md))(EVP_MD_CTX *to,
871 const EVP_MD_CTX *from)
875 int (*EVP_MD_meth_get_cleanup(const EVP_MD *md))(EVP_MD_CTX *ctx)
879 int (*EVP_MD_meth_get_ctrl(const EVP_MD *md))(EVP_MD_CTX *ctx, int cmd,
885 const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx)
889 return ctx->reqdigest;
892 EVP_PKEY_CTX *EVP_MD_CTX_pkey_ctx(const EVP_MD_CTX *ctx)
897 #if !defined(FIPS_MODULE)
898 /* TODO(3.0): EVP_DigestSign* not yet supported in FIPS module */
899 void EVP_MD_CTX_set_pkey_ctx(EVP_MD_CTX *ctx, EVP_PKEY_CTX *pctx)
902 * it's reasonable to set NULL pctx (a.k.a clear the ctx->pctx), so
903 * we have to deal with the cleanup job here.
905 if (!EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX))
906 EVP_PKEY_CTX_free(ctx->pctx);
911 /* make sure pctx is not freed when destroying EVP_MD_CTX */
912 EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX);
914 EVP_MD_CTX_clear_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX);
917 #endif /* !defined(FIPS_MODULE) */
919 void *EVP_MD_CTX_md_data(const EVP_MD_CTX *ctx)
924 int (*EVP_MD_CTX_update_fn(EVP_MD_CTX *ctx))(EVP_MD_CTX *ctx,
925 const void *data, size_t count)
930 void EVP_MD_CTX_set_update_fn(EVP_MD_CTX *ctx,
931 int (*update) (EVP_MD_CTX *ctx,
932 const void *data, size_t count))
934 ctx->update = update;
937 void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags)
942 void EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags)
944 ctx->flags &= ~flags;
947 int EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx, int flags)
949 return (ctx->flags & flags);
952 void EVP_CIPHER_CTX_set_flags(EVP_CIPHER_CTX *ctx, int flags)
957 void EVP_CIPHER_CTX_clear_flags(EVP_CIPHER_CTX *ctx, int flags)
959 ctx->flags &= ~flags;
962 int EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx, int flags)
964 return (ctx->flags & flags);
967 int EVP_PKEY_CTX_set_group_name(EVP_PKEY_CTX *ctx, const char *name)
969 OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
970 OSSL_PARAM *p = params;
973 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
974 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
978 if (!EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
982 /* Could be a legacy key, try and convert to a ctrl */
983 if (ctx->pmeth != NULL && (nid = OBJ_txt2nid(name)) != NID_undef) {
984 if (ctx->pmeth->pkey_id == EVP_PKEY_DH)
985 return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH,
987 | EVP_PKEY_OP_KEYGEN,
988 EVP_PKEY_CTRL_DH_NID, nid, NULL);
989 if (ctx->pmeth->pkey_id == EVP_PKEY_EC)
990 return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC,
991 EVP_PKEY_OP_PARAMGEN|EVP_PKEY_OP_KEYGEN,
992 EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID,
996 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
997 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1004 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME,
1006 return EVP_PKEY_CTX_set_params(ctx, params);
1009 int EVP_PKEY_CTX_get_group_name(EVP_PKEY_CTX *ctx, char *name, size_t namelen)
1011 OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
1012 OSSL_PARAM *p = params;
1014 if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
1015 /* There is no legacy support for this */
1016 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1017 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1024 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME,
1026 if (!EVP_PKEY_CTX_get_params(ctx, params))