University Assignments

NCoder Encryption/Decryption Method

A command-line program that encrypts and decrypts user-entered messages using the Vigenère Cipher.

This is a Caesar cipher for both encoding and decoding. The key is an integer from 1 to 25. This cipher rotates the letters of the alphabet (A to Z). The encoding replaces each letter with the 1st to 25th next letter in the alphabet (wrapping Z to A). So key 2 encrypts "HI" to "JK", but key 20 encrypts "HI" to "BC".

A thorough introduction into the world of ciphers, their history, security and code implementation.

A program that encrypts a given text in such a way that, instead of letters, the program outputs the atomic number of the element which chemical symbol corresponds to the encrypted letters, ignoring their case. The space between letters should be replaced with an asterisk, and the space between words should be replaced with two asterisks.

Fast, secure, efficent stream cipher

A simple GUI for encrypting and decrypting simple ciphers. Additionally, it contains information on them and allows the user to test themselves.

Encrypting and decrypting a string of text using a fractionated morse code cipher.

Can encrypt and decrypt text:)

Java code to crack words encrypted using the same key by a Vigenère cipher

Steganography is the practice of concealing a message within another medium, such as an image, audio, or video file, without attracting attention

Android library to simplify Fingerprint authentication implementation.

Android app showing quick & practical implementation of the Solitaire encryption algorithm by Bruce Schenier

a Spring implementation of GDPR design pattern

Java version of the Vigenère cipher (created in 1553), now breakable (since 1863)

[Introduction to Criptography] The Vignere Cipher is a method of encryting alphabetic text by using a series of interwoven Caesar ciphers, based on the letters of a keyword.