xref: /aosp_15_r20/external/tink/cc/prf/failing_prfset.h (revision e7b1675dde1b92d52ec075b0a92829627f2c52a5)
1 // Copyright 2022 Google LLC
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 //     http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 //
15 ///////////////////////////////////////////////////////////////////////////////
16 #ifndef TINK_PRF_FAILING_PRFSET_H_
17 #define TINK_PRF_FAILING_PRFSET_H_
18 
19 #include <memory>
20 #include <string>
21 
22 #include "absl/strings/string_view.h"
23 #include "tink/prf/prf_set.h"
24 
25 namespace crypto {
26 namespace tink {
27 
28 // Returns a Prf that always returns an error when calling Compute.
29 // The error message will contain `message`.
30 std::unique_ptr<Prf> CreateAlwaysFailingPrf(std::string message = "");
31 
32 // Returns a PrfSet that always returns an error when calling ComputePrimary and
33 // a set of always failing Prfs when calling GetPrfs().
34 // The error message will contain `message`.
35 std::unique_ptr<PrfSet> CreateAlwaysFailingPrfSet(std::string message = "");
36 
37 }  // namespace tink
38 }  // namespace crypto
39 
40 #endif  // TINK_PRF_FAILING_PRFSET_H_
41