Method sign

modules/crypt/etc/hmac.js:95–101

(H)

		return this.close();
	};
	sign(H) {
		this.write(H);
		let sig = this.close();
		if (this.hashLen)
			sig = sig.slice(0, this.hashLen);
		return sig;
	};
	verify(H, sig) {
		this.write(H);
		let t = this.close();