30 lines
1.5 KiB
JavaScript
30 lines
1.5 KiB
JavaScript
/*
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* Copyright 2024 The Matrix.org Foundation C.I.C.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { deriveRecoveryKeyFromPassphrase } from "../crypto-api/index.js";
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/**
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* Derive a backup key from a passphrase using the salt and iterations from the auth data.
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* @param authData - The auth data containing the salt and iterations
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* @param passphrase - The passphrase to derive the key from
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* @deprecated Deriving a backup key from a passphrase is not part of the matrix spec. Instead, a random key is generated and stored/shared via 4S.
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*/
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export function keyFromAuthData(authData, passphrase) {
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if (!authData.private_key_salt || !authData.private_key_iterations) {
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throw new Error("Salt and/or iterations not found: this backup cannot be restored with a passphrase");
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}
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return deriveRecoveryKeyFromPassphrase(passphrase, authData.private_key_salt, authData.private_key_iterations, authData.private_key_bits);
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}
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//# sourceMappingURL=key-passphrase.js.map
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