cc/python/public_key_sign.clif

# Copyright 2019 Google LLC.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from "tink/python/util/clif.h" import *  # StatusOr

from "tink/cc/public_key_sign.h":
  namespace `crypto::tink`:
    # Interface for public key signing.
    # Digital Signatures provide functionality of signing data and verification
    # of the signatures. They are represented by a pair of primitives
    # (interfaces) 'PublicKeySign' for signing of data, and 'PublicKeyVerify'
    # for verification of signatures. Implementations of these interfaces are
    # secure against adaptive chosen-message attacks. Signing data ensures the
    # authenticity and the integrity of that data, but not its secrecy.
    class PublicKeySign:
      # Computes the signature for 'data'.
      def `Sign` as sign(self, data: bytes) -> StatusOr<bytes>