crypto/ts/ts_lib.c

   1 /*
   2  * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   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
   8  */
   9
  10 #include <stdio.h>
  11 #include "internal/cryptlib.h"
  12 #include <openssl/objects.h>
  13 #include <openssl/bn.h>
  14 #include <openssl/x509.h>
  15 #include <openssl/x509v3.h>
  16 #include <openssl/ts.h>
  17 #include "ts_local.h"
  18
  19 int TS_ASN1_INTEGER_print_bio(BIO *bio, const ASN1_INTEGER *num)
  20 {
  21     BIGNUM *num_bn;
  22     int result = 0;
  23     char *hex;
  24
  25     num_bn = ASN1_INTEGER_to_BN(num, NULL);
  26     if (num_bn == NULL)
  27         return -1;
  28     if ((hex = BN_bn2hex(num_bn))) {
  29         result = BIO_write(bio, "0x", 2) > 0;
  30         result = result && BIO_write(bio, hex, strlen(hex)) > 0;
  31         OPENSSL_free(hex);
  32     }
  33     BN_free(num_bn);
  34
  35     return result;
  36 }
  37
  38 int TS_OBJ_print_bio(BIO *bio, const ASN1_OBJECT *obj)
  39 {
  40     char obj_txt[128];
  41
  42     OBJ_obj2txt(obj_txt, sizeof(obj_txt), obj, 0);
  43     BIO_printf(bio, "%s\n", obj_txt);
  44
  45     return 1;
  46 }
  47
  48 int TS_ext_print_bio(BIO *bio, const STACK_OF(X509_EXTENSION) *extensions)
  49 {
  50     int i, critical, n;
  51     X509_EXTENSION *ex;
  52     ASN1_OBJECT *obj;
  53
  54     BIO_printf(bio, "Extensions:\n");
  55     n = X509v3_get_ext_count(extensions);
  56     for (i = 0; i < n; i++) {
  57         ex = X509v3_get_ext(extensions, i);
  58         obj = X509_EXTENSION_get_object(ex);
  59         if (i2a_ASN1_OBJECT(bio, obj) < 0)
  60             return 0;
  61         critical = X509_EXTENSION_get_critical(ex);
  62         BIO_printf(bio, ":%s\n", critical ? " critical" : "");
  63         if (!X509V3_EXT_print(bio, ex, 0, 4)) {
  64             BIO_printf(bio, "%4s", "");
  65             ASN1_STRING_print(bio, X509_EXTENSION_get_data(ex));
  66         }
  67         BIO_write(bio, "\n", 1);
  68     }
  69
  70     return 1;
  71 }
  72
  73 int TS_X509_ALGOR_print_bio(BIO *bio, const X509_ALGOR *alg)
  74 {
  75     int i = OBJ_obj2nid(alg->algorithm);
  76     return BIO_printf(bio, "Hash Algorithm: %s\n",
  77                       (i == NID_undef) ? "UNKNOWN" : OBJ_nid2ln(i));
  78 }
  79
  80 int TS_MSG_IMPRINT_print_bio(BIO *bio, TS_MSG_IMPRINT *a)
  81 {
  82     ASN1_OCTET_STRING *msg;
  83
  84     TS_X509_ALGOR_print_bio(bio, a->hash_algo);
  85
  86     BIO_printf(bio, "Message data:\n");
  87     msg = a->hashed_msg;
  88     BIO_dump_indent(bio, (const char *)ASN1_STRING_get0_data(msg),
  89                     ASN1_STRING_length(msg), 4);
  90
  91     return 1;
  92 }