Over the last few weeks I have been looking at ciphers and encryption, which has included a Python program to brute force the Caesar cipher, Python to encrypt / decrypt with the Vigenère cipher , some Morse code and RSA Public Keys. With my recent looks into encryption, especially the look into the Vigenere Cipher, … Continue reading Instant Messaging App With Vigenère Encryption (Python)

Previously I looked at the Vigenère cipher, but I did not have a working Python example. After some thought and consideration I came to the realisation that the Vigenère cipher is pretty much just a Caesar cipher with a shift that changes each letter, which then allowed me to figure out how to make it … Continue reading Vigenère Cipher (Python)

I am currently undertaking the "Encryption & Cryptography" course on FutureLearn (https://www.futurelearn.com/courses/encryption-and-cryptography/) and looking at public-key cryptography, specifically today the RSA public-key method. RSA is named after Ron Rivest, Adi Shamir and Leonard Adleman (Rivest-Shamir-Adleman; RSA) and the details for the algorithm were first published in 1977. English mathematician, Clifford Cocks developed a similar system … Continue reading RSA Public-Key Cryptography (Python)

"The Caesar Cipher (Caesar Shift, Caesar’s Code) is a simple, easy to implement substitution cipher. The cipher is named after Julius Caesar. The cipher works by taking the letters of the message and then shifts the letter a defined space along the alphabet. For example a shift of 1 character would make a=b, b=c, c=d … Continue reading Brute Force Caesar Cipher (Python)