To run this program, make sure you have Python 3 installed on your system ... hello world Type the shift number: 3 The encoded text is khoor zruog Do you want to restart the cipher program? [yes, no]: ...

before the character. e.g to encrypt 'gatE', you would write '@o+!a0' Since some special characters and numbers are used for encryption, to write an exact special character or a number, the '=' ...

The Vigènere Cipher ... substitution. While it may not be unbreakable as initially believed, it still offers an exciting challenge for those interested in cryptography. With various methods available, ...