Do some research to learn about modern encryption systems such as the RSA cryptosystem employed to do secure transactions on the internet.Research and discuss how this breakthrough ushered an era of research leading to the birth of modern Computer Science. Watch the Oscar nominated movie “The Imitation Game” which tells the story of Alan Turing and his team of cryptographers who broke the Nazi encryption system “Enigma” based on the Vigenere Cipher.Especially read about the Vigenere Cipher which was used extensively in communicating sensitive information during World War 2. Do some research on other types of ciphers used historically.If you came across a long message encrypted in the Caesar Cipher but did not know the shift value, what are some ways you might be able to break the system and decrypt the message? Discuss the weaknesses of a Caesar Cipher and how it is prone to breaking.You may wish to restrict your alphabet to the set of printable characters given above in the Unicode table. Implement a version of the Caesar Cipher that not only shifts the characters but also wraps them round the alphabet when the end of the alphabet is reached.Although it is not particularly resourceful, Caesar Cipher gets the job done and can be easily used by anyone. We have not come across any issues throughout our evaluation, since the tool did not freeze, crash or pop up error messages. ConclusionĬaesar Cipher has minimal impact on computer performance, since it does not hog system resources. There are no other notable options provided by this software app. Furthermore, you can copy the encrypted text to the Clipboard for further usage. The main app window has a regular look and structure, where you can type or paste text, specify the key, and instantly generate the encrypted text. Worth mentioning is that the program does not modify Windows registry settings, nor create extra files on the PC, leaving it clean after removal. Since installation is not a prerequisite, you can save the program files in any part of the hard disk and just click the executable to run.Īnother possibility is to save a copy of Caesar Cipher to the USB flash disk or similar storage unit, in order to run it on any PC effortlessly and without previously installing anything. Therefore, you can securely send private messages to a friend without worrying about someone getting ahold of the content (not without the key, at least). Caesar Cipher is a free and open-source Windows application that allows users to easily encrypt and decrypt text using the Caesar cipher method, by shifting each letter by a user-defined number of steps.

Caesar shift decoder