1 /* $OpenBSD: x509type.c,v 1.24 2023/11/13 16:16:14 tb Exp $ */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 #include <stdio.h> 60 61 #include <openssl/evp.h> 62 #include <openssl/objects.h> 63 #include <openssl/x509.h> 64 65 #include "evp_local.h" 66 #include "x509_local.h" 67 68 int 69 X509_certificate_type(const X509 *x, const EVP_PKEY *pkey) 70 { 71 const EVP_PKEY *pk = pkey; 72 int nid; 73 int ret = 0; 74 75 if (x == NULL) 76 goto done; 77 78 if (pk == NULL) 79 pk = X509_get0_pubkey(x); 80 if (pk == NULL) 81 goto done; 82 83 switch (pk->type) { 84 case EVP_PKEY_RSA: 85 ret = EVP_PK_RSA|EVP_PKT_SIGN|EVP_PKT_ENC; 86 break; 87 case EVP_PKEY_RSA_PSS: 88 ret = EVP_PK_RSA|EVP_PKT_SIGN; 89 break; 90 case EVP_PKEY_DSA: 91 ret = EVP_PK_DSA|EVP_PKT_SIGN; 92 break; 93 case EVP_PKEY_EC: 94 ret = EVP_PK_EC|EVP_PKT_SIGN|EVP_PKT_EXCH; 95 break; 96 case EVP_PKEY_ED25519: 97 ret = EVP_PKT_SIGN; 98 break; 99 case EVP_PKEY_DH: 100 ret = EVP_PK_DH|EVP_PKT_EXCH; 101 break; 102 case NID_id_GostR3410_94: 103 case NID_id_GostR3410_2001: 104 ret = EVP_PKT_EXCH|EVP_PKT_SIGN; 105 break; 106 default: 107 break; 108 } 109 110 if ((nid = X509_get_signature_nid(x)) == NID_undef) 111 goto done; 112 113 if (!OBJ_find_sigid_algs(nid, NULL, &nid)) 114 goto done; 115 116 switch (nid) { 117 case NID_rsaEncryption: 118 case NID_rsa: 119 ret |= EVP_PKS_RSA; 120 break; 121 case NID_dsa: 122 case NID_dsa_2: 123 ret |= EVP_PKS_DSA; 124 break; 125 case NID_X9_62_id_ecPublicKey: 126 ret |= EVP_PKS_EC; 127 break; 128 default: 129 break; 130 } 131 132 done: 133 134 return ret; 135 } 136 LCRYPTO_ALIAS(X509_certificate_type); 137