Question: This problem-based learning (PBL) question involves encoding/decoding using a Bifid cipher. Consider the following secret message: BBHYY ACWWL NTAZA PLLBS CHQOT PIA It has been

This problem-based learning (PBL) question involves encoding/decoding using a Bifid cipher.

Consider the following secret message:

BBHYY ACWWL NTAZA PLLBS CHQOT PIA

It has been encoded using a Bifid cipher with key Polytechnic and period or block size 5.

Search the Internet for information about Bifid Cipher, to help you understand the method.

a) Show 5x5 Polybius square with horizontal key.

b) Decode the message.

c) Show your work.

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