| /* |
| * Copyright 2017 The Android Open Source Project |
| * |
| * 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. |
| */ |
| |
| #ifndef HARDWARE_INTERFACES_KEYMASTER_4_0_SUPPORT_OPENSSL_UTILS_H_ |
| #define HARDWARE_INTERFACES_KEYMASTER_4_0_SUPPORT_OPENSSL_UTILS_H_ |
| |
| #include <android/hardware/keymaster/4.0/types.h> |
| |
| template <typename T, void (*F)(T*)> |
| struct UniquePtrDeleter { |
| void operator()(T* p) const { F(p); } |
| }; |
| |
| typedef UniquePtrDeleter<EVP_PKEY, EVP_PKEY_free> EVP_PKEY_Delete; |
| |
| #define MAKE_OPENSSL_PTR_TYPE(type) \ |
| typedef std::unique_ptr<type, UniquePtrDeleter<type, type##_free>> type##_Ptr; |
| |
| MAKE_OPENSSL_PTR_TYPE(ASN1_OBJECT) |
| MAKE_OPENSSL_PTR_TYPE(EVP_PKEY) |
| MAKE_OPENSSL_PTR_TYPE(RSA) |
| MAKE_OPENSSL_PTR_TYPE(X509) |
| MAKE_OPENSSL_PTR_TYPE(BN_CTX) |
| |
| typedef std::unique_ptr<BIGNUM, UniquePtrDeleter<BIGNUM, BN_free>> BIGNUM_Ptr; |
| |
| inline const EVP_MD* openssl_digest(android::hardware::keymaster::V4_0::Digest digest) { |
| switch (digest) { |
| case android::hardware::keymaster::V4_0::Digest::NONE: |
| return nullptr; |
| case android::hardware::keymaster::V4_0::Digest::MD5: |
| return EVP_md5(); |
| case android::hardware::keymaster::V4_0::Digest::SHA1: |
| return EVP_sha1(); |
| case android::hardware::keymaster::V4_0::Digest::SHA_2_224: |
| return EVP_sha224(); |
| case android::hardware::keymaster::V4_0::Digest::SHA_2_256: |
| return EVP_sha256(); |
| case android::hardware::keymaster::V4_0::Digest::SHA_2_384: |
| return EVP_sha384(); |
| case android::hardware::keymaster::V4_0::Digest::SHA_2_512: |
| return EVP_sha512(); |
| } |
| return nullptr; |
| } |
| |
| #endif // HARDWARE_INTERFACES_KEYMASTER_4_0_SUPPORT_OPENSSL_UTILS_H_ |