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// 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.
//
////////////////////////////////////////////////////////////////////////////////
goog.module('tink.BinaryKeysetReader');
const KeysetReader = goog.require('tink.KeysetReader');
const PbKeyset = goog.require('proto.google.crypto.tink.Keyset');
const SecurityException = goog.require('tink.exception.SecurityException');
/**
* BinaryKeysetReader knows how to read a keyset or an encrypted keyset
* serialized to binary format.
*
* @implements {KeysetReader}
* @final
*/
class BinaryKeysetReader {
/** @param {!Uint8Array} serializedKeyset */
constructor(serializedKeyset) {
/** @const @private {!Uint8Array} */
this.serializedKeyset_ = serializedKeyset;
}
/**
* @param {!Uint8Array} serializedKeyset
* @return {!BinaryKeysetReader}
*/
static withUint8Array(serializedKeyset) {
if (!serializedKeyset) {
throw new SecurityException('Serialized keyset has to be non-null.');
}
return new BinaryKeysetReader(serializedKeyset);
}
/** @override */
read() {
let /** !PbKeyset */ keyset;
try {
keyset = PbKeyset.deserializeBinary(this.serializedKeyset_);
} catch (e) {
throw new SecurityException(
'Could not parse the given serialized proto as a keyset proto.');
}
if (keyset.getKeyList().length === 0) {
throw new SecurityException(
'Could not parse the given serialized proto as a keyset proto.');
}
return keyset;
}
/** @override */
readEncrypted() {
throw new SecurityException('Not implemented yet.');
}
}
goog.exportSymbol('tink.BinaryKeysetReader', BinaryKeysetReader);