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Math behind Security

The math behind why encryption works — and why it sometimes doesn't.

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From One Seed to a Thousand Leaves - Merkle’s Authentication Tree

An implementation of a small Merkle Tree can be found in my GitHub Repository . The Great Seal of Realm - the sign of a royal approval. For centuries, Kings and Queens, Emperors and Empresses, Ladies and Lords used seals to leave their family names on the important documents. But what was left for us, ordinary commoners? Simple autographs were our low budget seals. Their uniqueness comes from a…

Chopped, Stored, Secured — The Story of the Hash Function

A Python implementation for all of these algorithms is available in my GitHub repository.

When is your birthday? - The Math Behind Hash Collisions

Note: This post turned out a little different from the previous ones. It's more of an essay than a dialogue. I tried restructuring it multiple times, but it kept wanting to be linear. And you know, sometimes the topic just has its own shape, so I left it like this. Enjoy! What is the probability that you are sharing the same birthday with people around you? Well, if you’re alone in the room, then…

The Accidental Ancestor — How a Computer for Verifying Numbers Shaped Modern Hashing

An implementation for this algorithm can be found in my GitHub Repository

Searching smarter - Plagiarism Detection with Rolling Hashes

An implementation for this algorithm can be found in my GitHub Repository

Short intro

How is my data secured? How was it kept safe throughout history? Can I decrypt it without a key?