20 lines
689 B
TypeScript
20 lines
689 B
TypeScript
'use strict';
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import { createHmac } from 'crypto';
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import { arrayify, Arrayish } from './bytes';
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import { SupportedAlgorithms } from './types';
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export { SupportedAlgorithms };
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import * as errors from './errors';
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const supportedAlgorithms = { sha256: true, sha512: true };
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export function computeHmac(algorithm: SupportedAlgorithms, key: Arrayish, data: Arrayish): Uint8Array {
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if (!supportedAlgorithms[algorithm]) {
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errors.throwError('unsupported algorithm ' + algorithm, errors.UNSUPPORTED_OPERATION, { operation: 'hmac', algorithm: algorithm });
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}
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return arrayify(createHmac(algorithm, new Buffer(arrayify(key))).update(new Buffer(arrayify(data))).digest());
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}
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