1 /* $OpenBSD: x509spki.c,v 1.14 2019/05/23 02:08:34 bcook Exp $ */ 2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 3 * project 1999. 4 */ 5 /* ==================================================================== 6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in 17 * the documentation and/or other materials provided with the 18 * distribution. 19 * 20 * 3. All advertising materials mentioning features or use of this 21 * software must display the following acknowledgment: 22 * "This product includes software developed by the OpenSSL Project 23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24 * 25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26 * endorse or promote products derived from this software without 27 * prior written permission. For written permission, please contact 28 * licensing@OpenSSL.org. 29 * 30 * 5. Products derived from this software may not be called "OpenSSL" 31 * nor may "OpenSSL" appear in their names without prior written 32 * permission of the OpenSSL Project. 33 * 34 * 6. Redistributions of any form whatsoever must retain the following 35 * acknowledgment: 36 * "This product includes software developed by the OpenSSL Project 37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38 * 39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50 * OF THE POSSIBILITY OF SUCH DAMAGE. 51 * ==================================================================== 52 * 53 * This product includes cryptographic software written by Eric Young 54 * (eay@cryptsoft.com). This product includes software written by Tim 55 * Hudson (tjh@cryptsoft.com). 56 * 57 */ 58 59 #include <stdio.h> 60 #include <stdlib.h> 61 #include <string.h> 62 63 #include <openssl/err.h> 64 #include <openssl/x509.h> 65 66 int 67 NETSCAPE_SPKI_set_pubkey(NETSCAPE_SPKI *x, EVP_PKEY *pkey) 68 { 69 if ((x == NULL) || (x->spkac == NULL)) 70 return (0); 71 return (X509_PUBKEY_set(&(x->spkac->pubkey), pkey)); 72 } 73 74 EVP_PKEY * 75 NETSCAPE_SPKI_get_pubkey(NETSCAPE_SPKI *x) 76 { 77 if ((x == NULL) || (x->spkac == NULL)) 78 return (NULL); 79 return (X509_PUBKEY_get(x->spkac->pubkey)); 80 } 81 82 /* Load a Netscape SPKI from a base64 encoded string */ 83 84 NETSCAPE_SPKI * 85 NETSCAPE_SPKI_b64_decode(const char *str, int len) 86 { 87 unsigned char *spki_der; 88 const unsigned char *p; 89 int spki_len; 90 NETSCAPE_SPKI *spki; 91 92 if (len <= 0) 93 len = strlen(str); 94 if (!(spki_der = malloc(len + 1))) { 95 X509error(ERR_R_MALLOC_FAILURE); 96 return NULL; 97 } 98 spki_len = EVP_DecodeBlock(spki_der, (const unsigned char *)str, len); 99 if (spki_len < 0) { 100 X509error(X509_R_BASE64_DECODE_ERROR); 101 free(spki_der); 102 return NULL; 103 } 104 p = spki_der; 105 spki = d2i_NETSCAPE_SPKI(NULL, &p, spki_len); 106 free(spki_der); 107 return spki; 108 } 109 110 /* Generate a base64 encoded string from an SPKI */ 111 112 char * 113 NETSCAPE_SPKI_b64_encode(NETSCAPE_SPKI *spki) 114 { 115 unsigned char *der_spki, *p; 116 char *b64_str; 117 int der_len; 118 der_len = i2d_NETSCAPE_SPKI(spki, NULL); 119 der_spki = malloc(der_len); 120 b64_str = reallocarray(NULL, der_len, 2); 121 if (!der_spki || !b64_str) { 122 X509error(ERR_R_MALLOC_FAILURE); 123 free(der_spki); 124 free(b64_str); 125 return NULL; 126 } 127 p = der_spki; 128 i2d_NETSCAPE_SPKI(spki, &p); 129 EVP_EncodeBlock((unsigned char *)b64_str, der_spki, der_len); 130 free(der_spki); 131 return b64_str; 132 } 133