| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef COMPONENTS_WEBCRYPTO_BLINK_KEY_HANDLE_H_ |
| #define COMPONENTS_WEBCRYPTO_BLINK_KEY_HANDLE_H_ |
| |
| #include <stdint.h> |
| |
| #include <vector> |
| |
| #include "third_party/WebKit/public/platform/WebCryptoKey.h" |
| #include "third_party/boringssl/src/include/openssl/base.h" |
| |
| // Blink keys (blink::WebCryptoKey) have an associated key handle |
| // (blink::WebCryptoKeyHandle) used to store custom data. This is where the |
| // underlying EVP_PKEY is stored for asymmetric keys, or an std::vector |
| // containing the bytes for symmetric keys. |
| // |
| // This file contains helpers for creating the key handles, and extracting |
| // properties from it. |
| |
| namespace webcrypto { |
| |
| class CryptoData; |
| |
| // Returns a reference to the symmetric key data wrapped by the given Blink |
| // key. The returned reference is owned by |key|. This function must only be |
| // called on secret keys (HMAC, AES, etc). |
| const std::vector<uint8_t>& GetSymmetricKeyData(const blink::WebCryptoKey& key); |
| |
| // Returns the EVP_PKEY* wrapped by the given Blink key. The returned pointer |
| // is owned by |key|. This function must only be called on asymmetric keys |
| // (RSA, EC, etc). |
| EVP_PKEY* GetEVP_PKEY(const blink::WebCryptoKey& key); |
| |
| // Returns a reference to the serialized key data. This reference is owned by |
| // |key|. This function can be called for any key type. |
| const std::vector<uint8_t>& GetSerializedKeyData( |
| const blink::WebCryptoKey& key); |
| |
| // Creates a symmetric key handle that can be passed to Blink. The caller takes |
| // ownership of the returned pointer. |
| blink::WebCryptoKeyHandle* CreateSymmetricKeyHandle( |
| const CryptoData& key_bytes); |
| |
| // Creates an asymmetric key handle that can be passed to Blink. The caller |
| // takes |
| // ownership of the returned pointer. |
| // |
| // TODO(eroman): This should _move_ input serialized_key_data rather than |
| // create a copy, since all the callers are passing in vectors that are later |
| // thrown away anyway. |
| blink::WebCryptoKeyHandle* CreateAsymmetricKeyHandle( |
| bssl::UniquePtr<EVP_PKEY> pkey, |
| const std::vector<uint8_t>& serialized_key_data); |
| |
| } // namespace webcrypto |
| |
| #endif // COMPONENTS_WEBCRYPTO_BLINK_KEY_HANDLE_H_ |