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 #include "tink/hybrid/failing_hybrid.h"
17
18 #include <memory>
19 #include <string>
20 #include <utility>
21
22 #include "absl/strings/string_view.h"
23 #include "tink/hybrid_encrypt.h"
24
25 namespace crypto {
26 namespace tink {
27 namespace {
28
29 // A HybridEncrypt which will always return a kInternal status on API calls.
30 class AlwaysFailHybridEncrypt : public HybridEncrypt {
31 public:
AlwaysFailHybridEncrypt(std::string message)32 explicit AlwaysFailHybridEncrypt(std::string message)
33 : message_(std::move(message)) {}
34
Encrypt(absl::string_view plaintext,absl::string_view associated_data) const35 util::StatusOr<std::string> Encrypt(
36 absl::string_view plaintext,
37 absl::string_view associated_data) const override {
38 return util::Status(
39 absl::StatusCode::kInternal,
40 absl::StrCat(
41 "AlwaysFailHybridEncrypt will always fail on encrypt (msg=",
42 message_, ")"));
43 }
44
45 private:
46 const std::string message_;
47 };
48
49 // A HybridDecrypt which will always return a kInternal status on API calls.
50 class AlwaysFailHybridDecrypt : public HybridDecrypt {
51 public:
AlwaysFailHybridDecrypt(std::string message)52 explicit AlwaysFailHybridDecrypt(std::string message)
53 : message_(std::move(message)) {}
54
Decrypt(absl::string_view plaintext,absl::string_view associated_data) const55 util::StatusOr<std::string> Decrypt(
56 absl::string_view plaintext,
57 absl::string_view associated_data) const override {
58 return util::Status(
59 absl::StatusCode::kInternal,
60 absl::StrCat(
61 "AlwaysFailHybridDecrypt will always fail on decrypt (msg=",
62 message_, ")"));
63 }
64
65 private:
66 const std::string message_;
67 };
68
69 } // namespace
70
CreateAlwaysFailingHybridEncrypt(std::string message)71 std::unique_ptr<HybridEncrypt> CreateAlwaysFailingHybridEncrypt(
72 std::string message) {
73 return absl::make_unique<AlwaysFailHybridEncrypt>(std::move(message));
74 }
75
CreateAlwaysFailingHybridDecrypt(std::string message)76 std::unique_ptr<HybridDecrypt> CreateAlwaysFailingHybridDecrypt(
77 std::string message) {
78 return absl::make_unique<AlwaysFailHybridDecrypt>(std::move(message));
79 }
80
81
82 } // namespace tink
83 } // namespace crypto
84