Cryptography - 101 Computing

Stargate Access Code – Python Chalenge

Administrator — Thu, 12 Jun 2025 20:14:03 +0000

You are aboard a state-of-the-art spaceship, a few million light-years away from planet Earth, hurtling through the cosmos on a critical mission. Following a system outage, the AI on board went into shutdown mode and locked all doors onboard the…

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Stranger Code Challenge

Administrator — Mon, 09 Jun 2025 09:17:37 +0000

Welcome to our latest programming challenge! This time, we’re diving into the world of Stranger Things and the challenge is based on a piece of code seen in the second series of Stranger Things (Episode 8) where, following a total…

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The Vigenère Cipher – Python Challenge

Administrator — Wed, 12 Mar 2025 10:41:44 +0000

In the world of cryptography, the Vigenère Cipher represents a significant milestone in the evolution of encryption techniques. To fully appreciate its significance, let’s take a step back and explore its roots, starting with the Caesar Cipher. The Caesar Cipher:…

The post The Vigenère Cipher – Python Challenge first appeared on 101 Computing.

Poem Decoding Challenge

Administrator — Wed, 20 Dec 2023 11:06:38 +0000

To celebrate the start of the Winter, we have asked our Artificial Intelligence “AI-101” to generate a poem about the cold winter weather. The AI has generated the following poem which consists of a list of numbers! We believe the…

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Cryptography Challenge

Administrator — Thu, 25 Aug 2022 16:14:12 +0000

Cryptography, or cryptology is the practice and study of techniques for secure communication. Cryptography relies on using more or less complex encryption algorithms to encode a readable message (plaintext) into a collection of characters (ciphertext) that is hard to decipher…

The post Cryptography Challenge first appeared on 101 Computing.

UPC Barcodes

Administrator — Tue, 23 Mar 2021 22:19:03 +0000

A barcode is a visual representation of data that can easily be read by an optical barcode scanner/reader. Barcodes are used to facilitate and speed up the identification of different types of products. Using a barcode reader speed up the…

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Perseverance’s Parachute Secret Message Encoder

Administrator — Thu, 18 Mar 2021 01:28:25 +0000

On February 18, 2020, NASA successfully landed its rover “Perseverance” on planet Mars. To slow down its descent the rover deployed a parachute. The whole operation was filmed and relayed on the Internet. You can watch the official NASA video…

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XOR Encryption Algorithm

Administrator — Sat, 28 Nov 2020 14:22:58 +0000

The XOR Encryption algorithm is a very effective yet easy to implement method of symmetric encryption. Due to its effectiveness and simplicity, the XOR Encryption is an extremely common component used in more complex encryption algorithms used nowadays. The XOR…

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Visual Cryptography

Administrator — Sat, 11 Jan 2020 15:45:19 +0000

Visual cryptography is a technique that consists of hiding information (text/symbols/graphics) within two semi-transparent pictures (called layers). Overlaying both pictures exactly on top of one another, will reveal the hidden information. Using this technique, it is impossible to retrieve any…

The post Visual Cryptography first appeared on 101 Computing.

Atbash Cipher Algorithm

Administrator — Fri, 10 Jan 2020 10:49:02 +0000

The Atbash Cipher is a monoalphabetic substitution cipher that was originally used for the Hebrew alphabet. It is one of the earliest known subtitution ciphers to have been used. As opposed to a Caesar Cipher, the Atbash cipher does not…

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