When we discussed transposition ciphers in class, there was a discussion about whether or not the so-called null characters could be omitted. Suppose you encrypt a 22- (a) What is the minimum number of null characters would you need in order to encode b) Now suppose you decide to omit the null characters. Would the person receiving the keyword and your encryption scheme)? Be sure to explain why or why not character plaintext message using a transposition cipher with a 5-letter keyword. this message using the methods described in class? the message be able to properly decrypt it (assuming they have full knowledge of