[tink] Initial integration (#5725)

projects/tink/Dockerfile

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+# Copyright 2021 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 gcr.io/oss-fuzz-base/base-builder
+FROM gcr.io/oss-fuzz-base/base-builder-go
+RUN apt-get update && apt-get install -y make pkg-config
+RUN git clone --depth 1 https://github.com/google/tink
+WORKDIR tink
+COPY fuzzing_CMake \
+     build.sh \
+     tink_encrypt_decrypt_fuzzer.cc \
+     $SRC/

projects/tink/build.sh

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+#!/bin/bash -eu
+# Copyright 2021 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.
+#
+################################################################################
+
+mkdir ./cc/fuzzing 
+cp $SRC/tink_encrypt_decrypt_fuzzer.cc ./cc/fuzzing/
+cp $SRC/fuzzing_CMake ./cc/fuzzing/CMakeLists.txt
+cd cc/fuzzing && cmake .
+make -j$(nproc)
+mv tink_encrypt_fuzzer $OUT/

projects/tink/fuzzing_CMake

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+cmake_minimum_required(VERSION 3.5)
+project(tink_fuzz CXX)
+set(CMAKE_CXX_STANDARD 11)
+
+add_subdirectory(../.. tink)
+
+add_executable(tink_encrypt_fuzzer tink_encrypt_decrypt_fuzzer.cc)
+target_link_libraries(tink_encrypt_fuzzer tink::static $ENV{LIB_FUZZING_ENGINE})

projects/tink/project.yaml

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+homepage: "https://developers.google.com/tink"
+language: c++
+primary_contact: "thaidn@google.com"
+auto_ccs:
+  - "Adam@adalogics.com"
+  - "sschmieg@google.com"
+  - "tholenst@google.com"
+sanitizers:
+  - address
+  - undefined
+  - memory
+main_repo: "https://github.com/google/tink"

projects/tink/tink_encrypt_decrypt_fuzzer.cc

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+/* Copyright 2021 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.
+*/
+
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+#include <string>
+#include "tink/subtle/aes_siv_boringssl.h"
+
+
+extern "C"
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size){
+    crypto::tink::util::SecretData key = crypto::tink::util::SecretDataFromStringView("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f");
+    auto res = crypto::tink::subtle::AesSivBoringSsl::New(key);
+    auto cipher = std::move(res.ValueOrDie());
+    std::string aad = "Additional data";
+    std::string message(reinterpret_cast<const char*>(data), size);
+    auto ct = cipher->EncryptDeterministically(message, aad);
+    auto pt = cipher->DecryptDeterministically(ct.ValueOrDie(), aad);
+
+    return 0;
+}