2 * Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (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
12 static ENGINE_TABLE *digest_table = NULL;
14 void ENGINE_unregister_digests(ENGINE *e)
16 engine_table_unregister(&digest_table, e);
19 static void engine_unregister_all_digests(void)
21 engine_table_cleanup(&digest_table);
24 int ENGINE_register_digests(ENGINE *e)
28 int num_nids = e->digests(e, NULL, &nids, 0);
30 return engine_table_register(&digest_table,
31 engine_unregister_all_digests, e,
37 void ENGINE_register_all_digests(void)
41 for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
42 ENGINE_register_digests(e);
45 int ENGINE_set_default_digests(ENGINE *e)
49 int num_nids = e->digests(e, NULL, &nids, 0);
51 return engine_table_register(&digest_table,
52 engine_unregister_all_digests, e,
59 * Exposed API function to get a functional reference from the implementation
60 * table (ie. try to get a functional reference from the tabled structural
61 * references) for a given digest 'nid'
63 ENGINE *ENGINE_get_digest_engine(int nid)
65 return engine_table_select(&digest_table, nid);
68 /* Obtains a digest implementation from an ENGINE functional reference */
69 const EVP_MD *ENGINE_get_digest(ENGINE *e, int nid)
72 ENGINE_DIGESTS_PTR fn = ENGINE_get_digests(e);
73 if (!fn || !fn(e, &ret, NULL, nid)) {
74 ENGINEerr(ENGINE_F_ENGINE_GET_DIGEST, ENGINE_R_UNIMPLEMENTED_DIGEST);
80 /* Gets the digest callback from an ENGINE structure */
81 ENGINE_DIGESTS_PTR ENGINE_get_digests(const ENGINE *e)
86 /* Sets the digest callback in an ENGINE structure */
87 int ENGINE_set_digests(ENGINE *e, ENGINE_DIGESTS_PTR f)