byGalax
23 lines
669 B
TypeScript
23 lines
669 B
TypeScript
import { getCryptoBackend } from './backend';
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export const RECOVERY_ALPHABET = 'ABCDEFGHJKLMNPQRSTUVWXYZ23456789';
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export const RECOVERY_CODE_LEN = 24;
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export async function generateRecoveryCode(): Promise<string> {
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const raw = getCryptoBackend().randomBytes(RECOVERY_CODE_LEN);
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let out = '';
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for (let i = 0; i < raw.length; i++) {
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out += RECOVERY_ALPHABET[raw[i]! % RECOVERY_ALPHABET.length];
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if ((i + 1) % 6 === 0 && i !== raw.length - 1) out += '-';
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}
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return out;
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}
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export function normalizeRecoveryCode(input: string): string {
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return input
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.toUpperCase()
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.split('')
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.filter((c) => RECOVERY_ALPHABET.includes(c))
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.join('');
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}
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