We have the cipher text C(C1,C2,C3...) procedures from encrypting a plain text message M of many blocks (M1,M2,M3..) using CBC mode of operation what are the consequences of decrypting the cipher text if it has an error in the first bit of the first block C?
options: 1-M2 and the first bit of M3 are wrong
2-only the first bit of M1 is wrong
3-All M1,M2,M3.. are wrong
4-M1 and the first bit of M2 are wrong