An LFSR is used as a stream cipher. We managed to gain the following plaintext and cipher- text pair: m = 0010011000 c=1011001110 It is also known that the degree of this LFSR is at least 4. Find this LFSR (that is, find the recurrence relation that defines it). An LFSR is used as a stream cipher. We managed to gain the following plaintext and cipher- text pair: m = 0010011000 c=1011001110 It is also known that the degree of this LFSR is at least 4. Find this LFSR (that is, find the recurrence relation that defines it)