secure-hasher.ts
No OneTemporary
Actions

Size

1 KB

Referenced Files

None

Subscribers

None

secure-hasher.ts
View Options

	import crypto from "crypto";
	const algorithm = "sha512";
	import { promisify } from "util";

	const pbkdf2 = promisify(crypto.pbkdf2);

	const SecureHasher = {
	generateRandomSalt(salt_length: number): string {
	return crypto.randomBytes(salt_length).toString("base64");
	},
	async hash(
	value_to_hash: crypto.BinaryLike,
	salt: crypto.BinaryLike,
	{ iterations, key_length }: { iterations: number; key_length: number }
	): Promise<string> {
	const key = await pbkdf2(
	value_to_hash,
	salt,
	iterations,
	key_length,
	algorithm
	);
	return `${iterations}.${key_length}.${salt.toString()}.${key.toString(
	"hex"
	)}`;
	},
	async matches(
	value: crypto.BinaryLike,
	hash_with_params: string
	): Promise<boolean> {
	const [iterations, key_length, salt, hash] =
	hash_with_params.split(".");

	if (!iterations \|\| !key_length \|\| !salt) {
	throw new Error("iterations, key_length or salt is missing");
	}
	const key = await pbkdf2(
	value,
	salt,
	parseInt(iterations, 10),
	parseInt(key_length, 10),
	algorithm
	);
	return key.toString("hex") === hash;
	},
	};

	export default SecureHasher;