Method initialize

src/main/java/com/thealgorithms/ciphers/a5/LFSR.java:19–24

(BitSet sessionKey, BitSet frameCounter)

    }

    @Override
    public void initialize(BitSet sessionKey, BitSet frameCounter) {
        register.clear();
        clock(sessionKey, SESSION_KEY_LENGTH);
        clock(frameCounter, FRAME_COUNTER_LENGTH);
    }

    private void clock(BitSet key, int keyLength) {
        // We start from reverse because LFSR 0 index is the left most bit