# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import absolute_import, division, print_function
from nacl import exceptions as exc
from nacl._sodium import ffi, lib
from nacl.exceptions import ensure
__all__ = ["crypto_box_keypair", "crypto_box"]
crypto_box_SECRETKEYBYTES = lib.crypto_box_secretkeybytes()
crypto_box_PUBLICKEYBYTES = lib.crypto_box_publickeybytes()
crypto_box_NONCEBYTES = lib.crypto_box_noncebytes()
crypto_box_ZEROBYTES = lib.crypto_box_zerobytes()
crypto_box_BOXZEROBYTES = lib.crypto_box_boxzerobytes()
crypto_box_BEFORENMBYTES = lib.crypto_box_beforenmbytes()
def crypto_box_keypair():
"""
Returns a randomly generated public and secret key.
:rtype: (bytes(public_key), bytes(secret_key))
"""
pk = ffi.new("unsigned char[]", crypto_box_PUBLICKEYBYTES)
sk = ffi.new("unsigned char[]", crypto_box_SECRETKEYBYTES)
rc = lib.crypto_box_keypair(pk, sk)
ensure(rc == 0, 'Unexpected library error', raising=exc.RuntimeError)
# limitations under the License.
from __future__ import absolute_import, division, print_function
from nacl._sodium import ffi, lib
from nacl.exceptions import CryptoError
__all__ = ["crypto_box_keypair", "crypto_box"]
crypto_box_SECRETKEYBYTES = lib.crypto_box_secretkeybytes()
crypto_box_PUBLICKEYBYTES = lib.crypto_box_publickeybytes()
crypto_box_NONCEBYTES = lib.crypto_box_noncebytes()
crypto_box_ZEROBYTES = lib.crypto_box_zerobytes()
crypto_box_BOXZEROBYTES = lib.crypto_box_boxzerobytes()
crypto_box_BEFORENMBYTES = lib.crypto_box_beforenmbytes()
def crypto_box_keypair():
"""
Returns a randomly generated public and secret key.
:rtype: (bytes(public_key), bytes(secret_key))
"""
pk = ffi.new("unsigned char[]", crypto_box_PUBLICKEYBYTES)
sk = ffi.new("unsigned char[]", crypto_box_SECRETKEYBYTES)
rc = lib.crypto_box_keypair(pk, sk)
assert rc == 0
