| // Copyright 2020 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 |
| // |
| // https://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. |
| |
| #ifndef THIRD_PARTY_PRIVATE_MEMBERSHIP_SRC_INTERNAL_OPRF_UTILS_H_ |
| #define THIRD_PARTY_PRIVATE_MEMBERSHIP_SRC_INTERNAL_OPRF_UTILS_H_ |
| |
| #include "third_party/private-join-and-compute/src/crypto/ec_commutative_cipher.h" |
| #include "third_party/private_membership/src/private_membership.pb.h" |
| #include "third_party/private_membership/base/private_membership_export.h" |
| #include "third_party/shell-encryption/src/statusor.h" |
| |
| namespace private_membership { |
| |
| // Re-encrypts an already encrypted id with the given EC commutative cipher. |
| // |
| // Returns an INVALID_ARGUMENT error code if the given encrypted id is not a |
| // valid encoding of a point on the curve as defined in ANSI X9.62 ECDSA. |
| // |
| // This method is not threadsafe because ec_cipher is not thread-safe. |
| PRIVATE_MEMBERSHIP_EXPORT ::rlwe::StatusOr<DoublyEncryptedId> ReEncryptId( |
| absl::string_view encrypted_id, ::private_join_and_compute::ECCommutativeCipher* ec_cipher); |
| |
| } // namespace private_membership |
| |
| #endif // THIRD_PARTY_PRIVATE_MEMBERSHIP_SRC_INTERNAL_OPRF_UTILS_H_ |