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NEC Electronics · 2081 · Question 16

RSA numerical: p=5, q=11, e=3, message M=9. Find C and d (and decrypt).

PANA Academy Past Question Hints and Solutions - Electronics Set

AC = 14 (mod 55); d = 27; decryption recovers M = 9
BC = 9 (mod 55); d = 3; decryption M = 5
CC = 55 (mod 11); d = 9; decryption M = 14
DC = 3 (mod 5); d = 11; decryption M = 27
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