C++ (Cpp) _gnutls_openpgp_get_algo Examples

Example #1

File: privkey.c Project: nobled/gnutls

/**
 * gnutls_openpgp_privkey_get_pk_algorithm:
 * @key: is an OpenPGP key
 * @bits: if bits is non null it will hold the size of the parameters' in bits
 *
 * This function will return the public key algorithm of an OpenPGP
 * certificate.
 *
 * If bits is non null, it should have enough size to hold the parameters
 * size in bits. For RSA the bits returned is the modulus.
 * For DSA the bits returned are of the public exponent.
 *
 * Returns: a member of the #gnutls_pk_algorithm_t enumeration on
 *   success, or a negative error code on error.
 *
 * Since: 2.4.0
 **/
gnutls_pk_algorithm_t
gnutls_openpgp_privkey_get_pk_algorithm (gnutls_openpgp_privkey_t key,
                                         unsigned int *bits)
{
  cdk_packet_t pkt;
  int algo = 0, ret;
  uint8_t keyid[GNUTLS_OPENPGP_KEYID_SIZE];

  if (!key)
    {
      gnutls_assert ();
      return GNUTLS_PK_UNKNOWN;
    }

  ret = gnutls_openpgp_privkey_get_preferred_key_id (key, keyid);
  if (ret == 0)
    {
      int idx;

      idx = gnutls_openpgp_privkey_get_subkey_idx (key, keyid);
      if (idx != GNUTLS_OPENPGP_MASTER_KEYID_IDX)
        {
          algo =
            gnutls_openpgp_privkey_get_subkey_pk_algorithm (key, idx, bits);
          return algo;
        }
    }

  pkt = cdk_kbnode_find_packet (key->knode, CDK_PKT_SECRET_KEY);
  if (pkt)
    {
      if (bits)
        *bits = cdk_pk_get_nbits (pkt->pkt.secret_key->pk);
      algo = _gnutls_openpgp_get_algo (pkt->pkt.secret_key->pk->pubkey_algo);
    }

  return algo;
}

Example #2

File: privkey.c Project: nikolatesla/BitchXMPP

/**
 * gnutls_openpgp_privkey_get_pk_algorithm:
 * @key: is an OpenPGP key
 * @bits: if bits is non null it will hold the size of the parameters' in bits
 *
 * This function will return the public key algorithm of an OpenPGP
 * certificate.
 *
 * If bits is non null, it should have enough size to hold the parameters
 * size in bits. For RSA the bits returned is the modulus.
 * For DSA the bits returned are of the public exponent.
 *
 * Returns: a member of the #gnutls_pk_algorithm_t enumeration on
 *   success, or a negative value on error.
 *
 * Since: 2.4.0
 **/
gnutls_pk_algorithm_t
gnutls_openpgp_privkey_get_pk_algorithm (gnutls_openpgp_privkey_t key,
					 unsigned int *bits)
{
  cdk_packet_t pkt;
  int algo;

  if (!key)
    {
      gnutls_assert ();
      return GNUTLS_PK_UNKNOWN;
    }

  algo = 0;
  pkt = cdk_kbnode_find_packet (key->knode, CDK_PKT_SECRET_KEY);
  if (pkt)
    {
      if (bits)
	*bits = cdk_pk_get_nbits (pkt->pkt.secret_key->pk);
      algo = _gnutls_openpgp_get_algo (pkt->pkt.secret_key->pk->pubkey_algo);
    }

  return algo;
}

Example #3

File: privkey.c Project: randombit/hacrypto

static int
_get_sk_dsa_raw(gnutls_openpgp_privkey_t pkey,
		gnutls_openpgp_keyid_t keyid, gnutls_datum_t * p,
		gnutls_datum_t * q, gnutls_datum_t * g, gnutls_datum_t * y,
		gnutls_datum_t * x)
{
	int pk_algorithm, ret;
	cdk_packet_t pkt;
	uint32_t kid32[2];
	gnutls_pk_params_st params;

	if (pkey == NULL) {
		gnutls_assert();
		return GNUTLS_E_INVALID_REQUEST;
	}

	KEYID_IMPORT(kid32, keyid);

	pkt = _gnutls_openpgp_find_key(pkey->knode, kid32, 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);

	if (pk_algorithm != GNUTLS_PK_DSA) {
		gnutls_assert();
		return GNUTLS_E_INVALID_REQUEST;
	}

	ret = _gnutls_openpgp_privkey_get_mpis(pkey, kid32, &params);
	if (ret < 0) {
		gnutls_assert();
		return ret;
	}

	/* P */
	ret = _gnutls_mpi_dprint(params.params[0], p);
	if (ret < 0) {
		gnutls_assert();
		goto cleanup;
	}

	/* Q */
	ret = _gnutls_mpi_dprint(params.params[1], q);
	if (ret < 0) {
		gnutls_assert();
		_gnutls_free_datum(p);
		goto cleanup;
	}


	/* G */
	ret = _gnutls_mpi_dprint(params.params[2], g);
	if (ret < 0) {
		gnutls_assert();
		_gnutls_free_datum(p);
		_gnutls_free_datum(q);
		goto cleanup;
	}


	/* Y */
	ret = _gnutls_mpi_dprint(params.params[3], y);
	if (ret < 0) {
		gnutls_assert();
		_gnutls_free_datum(p);
		_gnutls_free_datum(g);
		_gnutls_free_datum(q);
		goto cleanup;
	}

	ret = _gnutls_mpi_dprint(params.params[4], x);
	if (ret < 0) {
		gnutls_assert();
		_gnutls_free_datum(y);
		_gnutls_free_datum(p);
		_gnutls_free_datum(g);
		_gnutls_free_datum(q);
		goto cleanup;
	}

	ret = 0;

      cleanup:
	gnutls_pk_params_clear(&params);
	gnutls_pk_params_release(&params);
	return ret;
}

Example #4

File: privkey.c Project: 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;
}

Example #5

File: privkey.c Project: nikolatesla/BitchXMPP

/* The internal version of export
 */
static int
_get_sk_rsa_raw (gnutls_openpgp_privkey_t pkey, gnutls_openpgp_keyid_t keyid,
		 gnutls_datum_t * m, gnutls_datum_t * e,
		 gnutls_datum_t * d, gnutls_datum_t * p,
		 gnutls_datum_t * q, gnutls_datum_t * u)
{
  int pk_algorithm, ret, i;
  cdk_packet_t pkt;
  uint32_t kid32[2];
  bigint_t params[MAX_PRIV_PARAMS_SIZE];
  int params_size = MAX_PRIV_PARAMS_SIZE;

  if (pkey == NULL)
    {
      gnutls_assert ();
      return GNUTLS_E_INVALID_REQUEST;
    }

  KEYID_IMPORT (kid32, keyid);

  pkt = _gnutls_openpgp_find_key (pkey->knode, kid32, 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);

  if (pk_algorithm != GNUTLS_PK_RSA)
    {
      gnutls_assert ();
      return GNUTLS_E_INVALID_REQUEST;
    }

  ret = _gnutls_openpgp_privkey_get_mpis (pkey, kid32, params, &params_size);
  if (ret < 0)
    {
      gnutls_assert ();
      return ret;
    }

  ret = _gnutls_mpi_dprint (params[0], m);
  if (ret < 0)
    {
      gnutls_assert ();
      goto cleanup;
    }

  ret = _gnutls_mpi_dprint (params[1], e);
  if (ret < 0)
    {
      gnutls_assert ();
      _gnutls_free_datum (m);
      goto cleanup;
    }

  ret = _gnutls_mpi_dprint (params[2], d);
  if (ret < 0)
    {
      gnutls_assert ();
      _gnutls_free_datum (m);
      _gnutls_free_datum (e);
      goto cleanup;
    }

  ret = _gnutls_mpi_dprint (params[3], p);
  if (ret < 0)
    {
      gnutls_assert ();
      _gnutls_free_datum (m);
      _gnutls_free_datum (e);
      _gnutls_free_datum (d);
      goto cleanup;
    }

  ret = _gnutls_mpi_dprint (params[4], q);
  if (ret < 0)
    {
      gnutls_assert ();
      _gnutls_free_datum (m);
      _gnutls_free_datum (e);
      _gnutls_free_datum (d);
      _gnutls_free_datum (p);
      goto cleanup;
    }

  ret = _gnutls_mpi_dprint (params[5], u);
  if (ret < 0)
    {
      gnutls_assert ();
      _gnutls_free_datum (q);
      _gnutls_free_datum (m);
      _gnutls_free_datum (e);
      _gnutls_free_datum (d);
      _gnutls_free_datum (p);
      goto cleanup;
    }

  ret = 0;

cleanup:
  for (i = 0; i < params_size; i++)
    {
      _gnutls_mpi_release (&params[i]);
    }
  return ret;
}

Example #6

File: privkey.c Project: 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;
}

Example #7

File: privkey.c Project: 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;
}