Answer
a) $SURRENDER NOW$
b) $BE MY FRIEND$
c) $TIME FOR FUN$
Work Step by Step
(a) Given
CEBBOMWB XYG
let A=o, B=l, C-=2, D=3, E=4, F=5, G-=6, H=7, 1=8, J=g, K=IO, 1—11,
M-=12, N=13, 0=14, P-=15, Q-=16, R=17, S=18, T-=lg, U=20, V-=21,
W=22, X-=23, Y=24, Z=25
2411142313 141 23246
let us apply the decryption = (p — 10) mod 26:
182017174 133417 13 1422
let A=o, B=l, C-=2, D=3, E=4, F=5, G-=6, H=7, 1=8, J=g, K=IO, 1—11,
M-=12, N=13, 0=14, P-=15, Q-=16, R=17, S=18, T-=lg, U=20, V-=21,
W=22, X-=23, Y=24, Z=25
b)let A=o, B=l, C-=2, D=3, E=4, F=5, G-=6, H=7, 1=8, J=g, K=IO, 1—11,
M-=12, N=13, 0=14, P-=15, Q-=16, R=17, S=18, T-=lg, U=20, V-=21,
W=22, X-=23, Y=24, Z=25
1114 228
151 1814 2313
let us apply the decryption = (p — 10) mod 26:
14 1224 51784133
let A=o, B=l, C-=2, D=3, E=4, F=5, G-=6, H=7, 1=8, J=g, K=IO, 1—11,
M-=12, N=13, 0=14, P-=15, Q-=16, R=17, S=18, T-=lg, U=20, V-=21,
W=22, X-=23, Y=24, Z=25
BE MY FRIEND
(c) Given
DSWO PYB PEX
let A=o, B=l, C-=2, D=3, E=4, F=5, G-=6, H=7, 1=8, J=g, K=IO, 1—11,
M-=12, N=13, 0=14, P-=15, Q-=16, R=17, S=18, T-=lg, U=20, V-=21,
W=22, X-=23, Y=24, Z=25
3182214 15241 15423
let us apply the decryption = (p — 10) mod 26:
198124 51417 520 13
let A=o, B=l, C-=2, D=3, E=4, F=5, G-=6, H=7, 1=8, J=g, K=IO, 1—11,
M-=12, N=13, 0=14, P-=15, Q-=16, R=17, S=18, T-=lg, U=20, V-=21,
W=22, X-=23, Y=24, Z=25
TIME FOR FUN