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/*
* Copyright 2014 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 SYSTEM_KEYMASTER_GOOGLE_SOFT_KEYMASTER_H_
#define SYSTEM_KEYMASTER_GOOGLE_SOFT_KEYMASTER_H_
#include <keymaster/google_keymaster.h>
namespace keymaster {
class GoogleSoftKeymaster : public GoogleKeymaster {
public:
GoogleSoftKeymaster(size_t operation_table_size, Logger* logger)
: GoogleKeymaster(operation_table_size, logger) {
root_of_trust.tag = KM_TAG_ROOT_OF_TRUST;
root_of_trust.blob.data = reinterpret_cast<const uint8_t*>("SW");
root_of_trust.blob.data_length = 2;
}
bool is_enforced(keymaster_tag_t /* tag */) { return false; }
keymaster_key_origin_t origin() { return KM_ORIGIN_SOFTWARE; }
private:
static uint8_t master_key_[];
keymaster_key_blob_t MasterKey() {
keymaster_key_blob_t blob;
blob.key_material = master_key_;
blob.key_material_size = 16;
return blob;
}
void GenerateNonce(uint8_t* nonce, size_t length) {
for (size_t i = 0; i < length; ++i)
nonce[i] = 0;
}
keymaster_key_param_t RootOfTrustTag() { return root_of_trust; }
keymaster_key_param_t root_of_trust;
};
uint8_t GoogleSoftKeymaster::master_key_[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
} // namespace
#endif // SYSTEM_KEYMASTER_GOOGLE_SOFT_KEYMASTER_H_
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