C++ (Cpp) _gnutls_read_pgp_mpiの例

コード例 #1

ファイル: privkey.c プロジェクト: nikolatesla/BitchXMPP

/* Extracts DSA and RSA parameters from a certificate.
 */
int
_gnutls_openpgp_privkey_get_mpis (gnutls_openpgp_privkey_t pkey,
				  uint32_t * keyid /*[2] */ ,
				  bigint_t * params, int *params_size)
{
  int result, i;
  int pk_algorithm, local_params;
  cdk_packet_t pkt;

  if (keyid == NULL)
    pkt = cdk_kbnode_find_packet (pkey->knode, CDK_PKT_SECRET_KEY);
  else
    pkt = _gnutls_openpgp_find_key (pkey->knode, keyid, 1);

  if (pkt == NULL)
    {
      gnutls_assert ();
      return GNUTLS_E_OPENPGP_GETKEY_FAILED;
    }

  pk_algorithm =
    _gnutls_openpgp_get_algo (pkt->pkt.secret_key->pk->pubkey_algo);

  switch (pk_algorithm)
    {
    case GNUTLS_PK_RSA:
      local_params = RSA_PRIVATE_PARAMS;
      break;
    case GNUTLS_PK_DSA:
      local_params = DSA_PRIVATE_PARAMS;
      break;
    default:
      gnutls_assert ();
      return GNUTLS_E_UNSUPPORTED_CERTIFICATE_TYPE;
    }

  if (*params_size < local_params)
    {
      gnutls_assert ();
      return GNUTLS_E_INTERNAL_ERROR;
    }

  *params_size = local_params;


  for (i = 0; i < local_params; i++)
    {
      result = _gnutls_read_pgp_mpi (pkt, 1, i, &params[i]);
      if (result < 0)
	{
	  gnutls_assert ();
	  goto error;
	}
    }

  return 0;

error:
  {
    int j;
    for (j = 0; j < i; j++)
      _gnutls_mpi_release (&params[j]);
  }

  return result;
}

コード例 #2

ファイル: privkey.c プロジェクト: randombit/hacrypto

/* Extracts DSA and RSA parameters from a certificate.
 */
int
_gnutls_openpgp_privkey_get_mpis(gnutls_openpgp_privkey_t pkey,
				 uint32_t * keyid /*[2] */ ,
				 gnutls_pk_params_st * params)
{
	int result;
	unsigned int i, pk_algorithm;
	cdk_packet_t pkt;
	unsigned total;

	gnutls_pk_params_init(params);

	if (keyid == NULL)
		pkt =
		    cdk_kbnode_find_packet(pkey->knode,
					   CDK_PKT_SECRET_KEY);
	else
		pkt = _gnutls_openpgp_find_key(pkey->knode, keyid, 1);

	if (pkt == NULL) {
		gnutls_assert();
		return GNUTLS_E_OPENPGP_GETKEY_FAILED;
	}

	pk_algorithm =
	    _gnutls_openpgp_get_algo(pkt->pkt.secret_key->pk->pubkey_algo);

	switch (pk_algorithm) {
	case GNUTLS_PK_RSA:
		/* openpgp does not hold all parameters as in PKCS #1
		 */
		total = RSA_PRIVATE_PARAMS - 2;
		break;
	case GNUTLS_PK_DSA:
		total = DSA_PRIVATE_PARAMS;
		break;
	default:
		gnutls_assert();
		return GNUTLS_E_UNSUPPORTED_CERTIFICATE_TYPE;
	}

	for (i = 0; i < total; i++) {
		result =
		    _gnutls_read_pgp_mpi(pkt, 1, i, &params->params[i]);
		if (result < 0) {
			gnutls_assert();
			goto error;
		}
		params->params_nr++;
	}

	/* fixup will generate exp1 and exp2 that are not
	 * available here.
	 */
	result = _gnutls_pk_fixup(pk_algorithm, GNUTLS_IMPORT, params);
	if (result < 0) {
		gnutls_assert();
		goto error;
	}

	return 0;

      error:
	gnutls_pk_params_clear(params);
	gnutls_pk_params_release(params);

	return result;
}

コード例 #3

ファイル: privkey.c プロジェクト: dezelin/maily

/* Extracts DSA and RSA parameters from a certificate.
 */
int
_gnutls_openpgp_privkey_get_mpis (gnutls_openpgp_privkey_t pkey,
                                  uint32_t * keyid /*[2] */ ,
                                  bigint_t * params, int *params_size)
{
  int result, i;
  int pk_algorithm;
  gnutls_pk_params_st pk_params;
  cdk_packet_t pkt;

  memset (&pk_params, 0, sizeof (pk_params));

  if (keyid == NULL)
    pkt = cdk_kbnode_find_packet (pkey->knode, CDK_PKT_SECRET_KEY);
  else
    pkt = _gnutls_openpgp_find_key (pkey->knode, keyid, 1);

  if (pkt == NULL)
    {
      gnutls_assert ();
      return GNUTLS_E_OPENPGP_GETKEY_FAILED;
    }

  pk_algorithm =
    _gnutls_openpgp_get_algo (pkt->pkt.secret_key->pk->pubkey_algo);

  switch (pk_algorithm)
    {
    case GNUTLS_PK_RSA:
      /* openpgp does not hold all parameters as in PKCS #1
       */
      pk_params.params_nr = RSA_PRIVATE_PARAMS - 2;
      break;
    case GNUTLS_PK_DSA:
      pk_params.params_nr = DSA_PRIVATE_PARAMS;
      break;
    default:
      gnutls_assert ();
      return GNUTLS_E_UNSUPPORTED_CERTIFICATE_TYPE;
    }

  for (i = 0; i < pk_params.params_nr; i++)
    {
      result = _gnutls_read_pgp_mpi (pkt, 1, i, &pk_params.params[i]);
      if (result < 0)
        {
          gnutls_assert ();
          goto error;
        }
    }
  
  /* fixup will generate exp1 and exp2 that are not
   * available here.
   */
  result = _gnutls_pk_fixup (pk_algorithm, GNUTLS_IMPORT, &pk_params);
  if (result < 0)
    {
      gnutls_assert ();
      goto error;
    }

  if (*params_size < pk_params.params_nr)
    {
      gnutls_assert ();
      return GNUTLS_E_INTERNAL_ERROR;
    }

  *params_size = pk_params.params_nr;
  for (i = 0; i < pk_params.params_nr; i++)
    params[i] = pk_params.params[i];

  return 0;

error:
  {
    int j;
    for (j = 0; j < i; j++)
      _gnutls_mpi_release (&pk_params.params[j]);
  }

  return result;
}