hash-fns
Version:
easily create, assess, and assure hashes within a pit-of-success
53 lines • 2.08 kB
JavaScript
;
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Object.defineProperty(exports, "__esModule", { value: true });
exports.asHashShake256 = void 0;
const crypto = __importStar(require("crypto"));
/**
* a simple function which converts a string into a shake256 hash
*
* shake256 supports arbitrary output length (in bytes)
*
* ref:
* - https://nodejs.org/api/crypto.html#crypto-createthehashalgorithm-options
*/
const asHashShake256 = async (message, options = { bytes: 32 }) => {
// encode as UTF-8
const msgBuffer = new TextEncoder().encode(message);
// hash the message using shake256
const hashBuffer = await crypto
.createHash('shake256', { outputLength: options.bytes })
.update(msgBuffer)
.digest();
// convert ArrayBuffer to Array
const hashArray = Array.from(new Uint8Array(hashBuffer));
// convert bytes to hex string
const hashHex = hashArray
.map((b) => b.toString(16).padStart(2, '0'))
.join('');
return hashHex;
};
exports.asHashShake256 = asHashShake256;
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