Bacon Cipher Examples (encoder / decoder)

1. Bacon Cipher encoder

Text : ABCD efghi
Letter 1 : a
Letter 2 : b
Alphabet : 24 letter (I=J & U=V have same ciphertext)

Solution:

Bacon cipher is a cipher, where each letter of plaintext is replaced by unique group of 5 symbols taken from two-alphabets (ab)

Baconian encryption uses the substitution table

Plaintext	A	B	C	D	E	F	G	H	I
Ciphertext	aaaaa	aaaab	aaaba	aaabb	aabaa	aabab	aabba	aabbb	abaaa

Plaintext	: ABCDEFGHI
Cipher with space	: aaaaa aaaab aaaba aaabb aabaa aabab aabba aabbb abaaa
Ciphertext	: aaaaaaaaabaaabaaaabbaabaaaababaabbaaabbbabaaa

2. Bacon Cipher encoder

Text : hello world
Letter 1 : a
Letter 2 : b
Alphabet : 24 letter (I=J & U=V have same ciphertext)

Solution:

Bacon cipher is a cipher, where each letter of plaintext is replaced by unique group of 5 symbols taken from two-alphabets (ab)

Baconian encryption uses the substitution table

Plaintext	H	E	L	L	O	W	O	R	L	D
Ciphertext	aabbb	aabaa	ababa	ababa	abbab	babaa	abbab	baaaa	ababa	aaabb

Plaintext	: HELLOWORLD
Cipher with space	: aabbb aabaa ababa ababa abbab babaa abbab baaaa ababa aaabb
Ciphertext	: aabbbaabaaababaababaabbabbabaaabbabbaaaaababaaaabb

This material is intended as a summary. Use your textbook for detail explanation.
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