2 * Copyright 1995-2021 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 #include <openssl/evp.h>
12 #include <openssl/kdf.h>
13 #include <openssl/x509.h>
14 #include "internal/cryptlib.h"
15 #include "internal/namemap.h"
16 #include "crypto/objects.h"
17 #include "crypto/evp.h"
19 int EVP_add_cipher(const EVP_CIPHER *c)
26 r = OBJ_NAME_add(OBJ_nid2sn(c->nid), OBJ_NAME_TYPE_CIPHER_METH,
30 r = OBJ_NAME_add(OBJ_nid2ln(c->nid), OBJ_NAME_TYPE_CIPHER_METH,
35 int EVP_add_digest(const EVP_MD *md)
40 name = OBJ_nid2sn(md->type);
41 r = OBJ_NAME_add(name, OBJ_NAME_TYPE_MD_METH, (const char *)md);
44 r = OBJ_NAME_add(OBJ_nid2ln(md->type), OBJ_NAME_TYPE_MD_METH,
49 if (md->pkey_type && md->type != md->pkey_type) {
50 r = OBJ_NAME_add(OBJ_nid2sn(md->pkey_type),
51 OBJ_NAME_TYPE_MD_METH | OBJ_NAME_ALIAS, name);
54 r = OBJ_NAME_add(OBJ_nid2ln(md->pkey_type),
55 OBJ_NAME_TYPE_MD_METH | OBJ_NAME_ALIAS, name);
60 static void cipher_from_name(const char *name, void *data)
62 const EVP_CIPHER **cipher = data;
67 *cipher = (const EVP_CIPHER *)OBJ_NAME_get(name, OBJ_NAME_TYPE_CIPHER_METH);
70 const EVP_CIPHER *EVP_get_cipherbyname(const char *name)
72 return evp_get_cipherbyname_ex(NULL, name);
75 const EVP_CIPHER *evp_get_cipherbyname_ex(OSSL_LIB_CTX *libctx,
79 OSSL_NAMEMAP *namemap;
82 if (!OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL))
85 cp = (const EVP_CIPHER *)OBJ_NAME_get(name, OBJ_NAME_TYPE_CIPHER_METH);
91 * It's not in the method database, but it might be there under a different
92 * name. So we check for aliases in the EVP namemap and try all of those
96 namemap = ossl_namemap_stored(libctx);
97 id = ossl_namemap_name2num(namemap, name);
101 if (!ossl_namemap_doall_names(namemap, id, cipher_from_name, &cp))
107 static void digest_from_name(const char *name, void *data)
109 const EVP_MD **md = data;
114 *md = (const EVP_MD *)OBJ_NAME_get(name, OBJ_NAME_TYPE_MD_METH);
117 const EVP_MD *EVP_get_digestbyname(const char *name)
119 return evp_get_digestbyname_ex(NULL, name);
122 const EVP_MD *evp_get_digestbyname_ex(OSSL_LIB_CTX *libctx, const char *name)
125 OSSL_NAMEMAP *namemap;
128 if (!OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL))
131 dp = (const EVP_MD *)OBJ_NAME_get(name, OBJ_NAME_TYPE_MD_METH);
137 * It's not in the method database, but it might be there under a different
138 * name. So we check for aliases in the EVP namemap and try all of those
142 namemap = ossl_namemap_stored(libctx);
143 id = ossl_namemap_name2num(namemap, name);
147 if (!ossl_namemap_doall_names(namemap, id, digest_from_name, &dp))
153 void evp_cleanup_int(void)
155 OBJ_NAME_cleanup(OBJ_NAME_TYPE_KDF_METH);
156 OBJ_NAME_cleanup(OBJ_NAME_TYPE_CIPHER_METH);
157 OBJ_NAME_cleanup(OBJ_NAME_TYPE_MD_METH);
159 * The above calls will only clean out the contents of the name hash
160 * table, but not the hash table itself. The following line does that
161 * part. -- Richard Levitte
163 OBJ_NAME_cleanup(-1);
168 evp_app_cleanup_int();
171 struct doall_cipher {
173 void (*fn) (const EVP_CIPHER *ciph,
174 const char *from, const char *to, void *arg);
177 static void do_all_cipher_fn(const OBJ_NAME *nm, void *arg)
179 struct doall_cipher *dc = arg;
181 dc->fn(NULL, nm->name, nm->data, dc->arg);
183 dc->fn((const EVP_CIPHER *)nm->data, nm->name, NULL, dc->arg);
186 void EVP_CIPHER_do_all(void (*fn) (const EVP_CIPHER *ciph,
187 const char *from, const char *to, void *x),
190 struct doall_cipher dc;
193 OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL);
197 OBJ_NAME_do_all(OBJ_NAME_TYPE_CIPHER_METH, do_all_cipher_fn, &dc);
200 void EVP_CIPHER_do_all_sorted(void (*fn) (const EVP_CIPHER *ciph,
201 const char *from, const char *to,
204 struct doall_cipher dc;
207 OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL);
211 OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, do_all_cipher_fn, &dc);
216 void (*fn) (const EVP_MD *ciph,
217 const char *from, const char *to, void *arg);
220 static void do_all_md_fn(const OBJ_NAME *nm, void *arg)
222 struct doall_md *dc = arg;
224 dc->fn(NULL, nm->name, nm->data, dc->arg);
226 dc->fn((const EVP_MD *)nm->data, nm->name, NULL, dc->arg);
229 void EVP_MD_do_all(void (*fn) (const EVP_MD *md,
230 const char *from, const char *to, void *x),
236 OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL);
240 OBJ_NAME_do_all(OBJ_NAME_TYPE_MD_METH, do_all_md_fn, &dc);
243 void EVP_MD_do_all_sorted(void (*fn) (const EVP_MD *md,
244 const char *from, const char *to,
249 OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL);
253 OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_MD_METH, do_all_md_fn, &dc);