Substitution Cipher Javascript

Ceasers Cipher -- JavaScript -- Free Code Camp by Stephen Mayeux. Zodiac Cipher (homophonic substitution). Substitution Cipher,. When shifting one position to the right, Z would turn A, and opposite when decoding. This page implements a Javascript Ajax converter that calls the API to convert a unicode string/text to ASCII number array (hexadecimal, binary, decimal, octal). An Implement a simple shift cipher like Caesar and a more secure substitution cipher.