This is an older authentication protocol that uses UDP and does not encrypt the stream. Group of answer choices

Encrypt the message " MATH " by translating the letters into numbersand then applying the encryption function given, and then translating the numbers back into letters.(a) f(p)=(17p+5) mod 26 _____ (b) f(p)=(15p+14) mod 26 ___ (c) f(p)=(19p+5) mod 26 ___Use A=0,B=1,C=2,D=3,E=4,F=5,G=6,H=7,I=8, J=9,K=10,L=11,M=12,N=13,O=14,P=15,Q=16,R=17, S=18,T=19,U=20,V=21,W=22,X=23,Y=24,Z=25

If you're sending a huge file, you'll need to use cypher block chaining or cypher feedback mode. By how much is one more efficient?

q6- What is the encryption of the message m = 9 in the RSA system which has <n= 91, e= 3> as a public key ? Cipher Text : ? Hint: n = p*q = 7*13 = 91