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| 1 /* crypto/asn1/evp_asn1.c */ | |
| 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 #include "cryptlib.h" | |
| 61 #include <openssl/asn1.h> | |
| 62 #include <openssl/asn1_mac.h> | |
| 63 | |
| 64 int ASN1_TYPE_set_octetstring(ASN1_TYPE *a, unsigned char *data, int len) | |
| 65 { | |
| 66 ASN1_STRING *os; | |
| 67 | |
| 68 if ((os=M_ASN1_OCTET_STRING_new()) == NULL) return(0); | |
| 69 if (!M_ASN1_OCTET_STRING_set(os,data,len)) return(0); | |
| 70 ASN1_TYPE_set(a,V_ASN1_OCTET_STRING,os); | |
| 71 return(1); | |
| 72 } | |
| 73 | |
| 74 /* int max_len: for returned value */ | |
| 75 int ASN1_TYPE_get_octetstring(ASN1_TYPE *a, unsigned char *data, | |
| 76 int max_len) | |
| 77 { | |
| 78 int ret,num; | |
| 79 unsigned char *p; | |
| 80 | |
| 81 if ((a->type != V_ASN1_OCTET_STRING) || (a->value.octet_string == NULL)) | |
| 82 { | |
| 83 ASN1err(ASN1_F_ASN1_TYPE_GET_OCTETSTRING,ASN1_R_DATA_IS_WRONG); | |
| 84 return(-1); | |
| 85 } | |
| 86 p=M_ASN1_STRING_data(a->value.octet_string); | |
| 87 ret=M_ASN1_STRING_length(a->value.octet_string); | |
| 88 if (ret < max_len) | |
| 89 num=ret; | |
| 90 else | |
| 91 num=max_len; | |
| 92 memcpy(data,p,num); | |
| 93 return(ret); | |
| 94 } | |
| 95 | |
| 96 int ASN1_TYPE_set_int_octetstring(ASN1_TYPE *a, long num, unsigned char *data, | |
| 97 int len) | |
| 98 { | |
| 99 int n,size; | |
| 100 ASN1_OCTET_STRING os,*osp; | |
| 101 ASN1_INTEGER in; | |
| 102 unsigned char *p; | |
| 103 unsigned char buf[32]; /* when they have 256bit longs, | |
| 104 * I'll be in trouble */ | |
| 105 in.data=buf; | |
| 106 in.length=32; | |
| 107 os.data=data; | |
| 108 os.type=V_ASN1_OCTET_STRING; | |
| 109 os.length=len; | |
| 110 ASN1_INTEGER_set(&in,num); | |
| 111 n = i2d_ASN1_INTEGER(&in,NULL); | |
| 112 n+=M_i2d_ASN1_OCTET_STRING(&os,NULL); | |
| 113 | |
| 114 size=ASN1_object_size(1,n,V_ASN1_SEQUENCE); | |
| 115 | |
| 116 if ((osp=ASN1_STRING_new()) == NULL) return(0); | |
| 117 /* Grow the 'string' */ | |
| 118 if (!ASN1_STRING_set(osp,NULL,size)) | |
| 119 { | |
| 120 ASN1_STRING_free(osp); | |
| 121 return(0); | |
| 122 } | |
| 123 | |
| 124 M_ASN1_STRING_length_set(osp, size); | |
| 125 p=M_ASN1_STRING_data(osp); | |
| 126 | |
| 127 ASN1_put_object(&p,1,n,V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL); | |
| 128 i2d_ASN1_INTEGER(&in,&p); | |
| 129 M_i2d_ASN1_OCTET_STRING(&os,&p); | |
| 130 | |
| 131 ASN1_TYPE_set(a,V_ASN1_SEQUENCE,osp); | |
| 132 return(1); | |
| 133 } | |
| 134 | |
| 135 /* we return the actual length..., num may be missing, in which | |
| 136 * case, set it to zero */ | |
| 137 /* int max_len: for returned value */ | |
| 138 int ASN1_TYPE_get_int_octetstring(ASN1_TYPE *a, long *num, unsigned char *data, | |
| 139 int max_len) | |
| 140 { | |
| 141 int ret= -1,n; | |
| 142 ASN1_INTEGER *ai=NULL; | |
| 143 ASN1_OCTET_STRING *os=NULL; | |
| 144 const unsigned char *p; | |
| 145 long length; | |
| 146 ASN1_const_CTX c; | |
| 147 | |
| 148 if ((a->type != V_ASN1_SEQUENCE) || (a->value.sequence == NULL)) | |
| 149 { | |
| 150 goto err; | |
| 151 } | |
| 152 p=M_ASN1_STRING_data(a->value.sequence); | |
| 153 length=M_ASN1_STRING_length(a->value.sequence); | |
| 154 | |
| 155 c.pp= &p; | |
| 156 c.p=p; | |
| 157 c.max=p+length; | |
| 158 c.error=ASN1_R_DATA_IS_WRONG; | |
| 159 | |
| 160 M_ASN1_D2I_start_sequence(); | |
| 161 c.q=c.p; | |
| 162 if ((ai=d2i_ASN1_INTEGER(NULL,&c.p,c.slen)) == NULL) goto err; | |
| 163 c.slen-=(c.p-c.q); | |
| 164 c.q=c.p; | |
| 165 if ((os=d2i_ASN1_OCTET_STRING(NULL,&c.p,c.slen)) == NULL) goto err; | |
| 166 c.slen-=(c.p-c.q); | |
| 167 if (!M_ASN1_D2I_end_sequence()) goto err; | |
| 168 | |
| 169 if (num != NULL) | |
| 170 *num=ASN1_INTEGER_get(ai); | |
| 171 | |
| 172 ret=M_ASN1_STRING_length(os); | |
| 173 if (max_len > ret) | |
| 174 n=ret; | |
| 175 else | |
| 176 n=max_len; | |
| 177 | |
| 178 if (data != NULL) | |
| 179 memcpy(data,M_ASN1_STRING_data(os),n); | |
| 180 if (0) | |
| 181 { | |
| 182 err: | |
| 183 ASN1err(ASN1_F_ASN1_TYPE_GET_INT_OCTETSTRING,ASN1_R_DATA_IS_WRON
G); | |
| 184 } | |
| 185 if (os != NULL) M_ASN1_OCTET_STRING_free(os); | |
| 186 if (ai != NULL) M_ASN1_INTEGER_free(ai); | |
| 187 return(ret); | |
| 188 } | |
| 189 | |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master