providers/implementations/encode_decode/encoder_ffc_params.c

   1 /*
   2  * Copyright 2020 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 /* Utility function for printing DSA/DH params. */
  11
  12 #include "prov/bio.h"
  13 #include "encoder_local.h"
  14
  15 int ffc_params_prov_print(BIO *out, const FFC_PARAMS *ffc)
  16 {
  17     if (ffc->nid != NID_undef) {
  18 #ifndef OPENSSL_NO_DH
  19         const char *name = ffc_named_group_from_uid(ffc->nid);
  20
  21         if (name == NULL)
  22             goto err;
  23         if (BIO_printf(out, "GROUP: %s\n", name) <= 0)
  24             goto err;
  25         return 1;
  26 #else
  27         /* How could this be? We should not have a nid in a no-dh build. */
  28         goto err;
  29 #endif
  30     }
  31
  32     if (!ossl_prov_print_labeled_bignum(out, "P:   ", ffc->p))
  33         goto err;
  34     if (ffc->q != NULL) {
  35         if (!ossl_prov_print_labeled_bignum(out, "Q:   ", ffc->q))
  36             goto err;
  37     }
  38     if (!ossl_prov_print_labeled_bignum(out, "G:   ", ffc->g))
  39         goto err;
  40     if (ffc->j != NULL) {
  41         if (!ossl_prov_print_labeled_bignum(out, "J:   ", ffc->j))
  42             goto err;
  43     }
  44     if (ffc->seed != NULL) {
  45         if (!ossl_prov_print_labeled_buf(out, "SEED:", ffc->seed, ffc->seedlen))
  46             goto err;
  47     }
  48     if (ffc->gindex != -1) {
  49         if (BIO_printf(out, "gindex: %d\n", ffc->gindex) <= 0)
  50             goto err;
  51     }
  52     if (ffc->pcounter != -1) {
  53         if (BIO_printf(out, "pcounter: %d\n", ffc->pcounter) <= 0)
  54             goto err;
  55     }
  56     if (ffc->h != 0) {
  57         if (BIO_printf(out, "h: %d\n", ffc->h) <= 0)
  58             goto err;
  59     }
  60     return 1;
  61 err:
  62     return 0;
  63 }