Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 | 3x 284x 3x 288x 4x 284x 4x 1x 3x 280x 279x 1x | /*
* This file is part of midnight-js.
* Copyright (C) 2025-2026 Midnight Foundation
* SPDX-License-Identifier: Apache-2.0
* 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.
*/
import { NobleCryptoBackend } from './crypto-backend-noble';
import { WebCryptoCryptoBackend } from './crypto-backend-webcrypto';
export interface CryptoBackend {
randomBytes(length: number): Uint8Array;
sha256(data: Uint8Array): Promise<Uint8Array>;
pbkdf2(
password: Uint8Array,
salt: Uint8Array,
iterations: number,
keyLength: number,
): Promise<Uint8Array>;
aesGcmEncrypt(
key: Uint8Array,
iv: Uint8Array,
plaintext: Uint8Array,
): Promise<{ ciphertext: Uint8Array; authTag: Uint8Array }>;
aesGcmDecrypt(
key: Uint8Array,
iv: Uint8Array,
ciphertext: Uint8Array,
authTag: Uint8Array,
): Promise<Uint8Array>;
}
export type CryptoBackendType = 'webcrypto' | 'noble';
export const isWebCryptoAvailable = (): boolean =>
typeof globalThis.crypto !== 'undefined' &&
typeof globalThis.crypto.subtle !== 'undefined';
export const resolveCryptoBackend = (preference?: CryptoBackendType): CryptoBackend => {
if (preference === 'noble') {
return new NobleCryptoBackend();
}
if (preference === 'webcrypto') {
if (!isWebCryptoAvailable()) {
throw new Error(
'Web Crypto API is not available. Use the \'noble\' crypto backend or run in a secure context (HTTPS or localhost).',
);
}
return new WebCryptoCryptoBackend();
}
if (isWebCryptoAvailable()) {
return new WebCryptoCryptoBackend();
}
return new NobleCryptoBackend();
};
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