About Artemis

Artemis is the only tool for cryptographers to create visualization dashboards of their ciphers, and share them with the world. This tool brings cryptanalysis to a new level, allowing you to see the patterns in your ciphers in a way that is not possible with traditional tools which require you to hop between tools.

This tool was created as part of an effort to solve some decade-old ciphers constructed by Jason Blundell, a well-known executive producer in the video game industry that has a knack for creating ciphers.

More widgets, tools, and features will continue to be added to Artemis as we continue to make it awesome.

For any questions, comments, or feature requests, please file an issue on the GitHub repository.

FAQ

Is Artemis free?

Yes, Artemis is free to use. As it scales, it's likely that I will need to add a backend to handle the larger dashboard links for minification of URLs. The site will eventually have a monetization model via non-intrusive ads.

How do you calculate the IC and entropy of different bases for English text?

I take a 500-word English text, convert it to the expected base, and calculate the entropy, IC, or other calculation. So you can test the functionality independently, here is the sample text that I use:

Sample English Text

In the quiet town of Maple Hollow, time seemed to move differently. The mornings began not with the blaring noise of alarms but with the gentle chirping of birds and the soft golden light that streamed through the leaves of ancient oak trees.At the heart of the town stood a small, brick library, its worn steps and creaky doors offering a welcome to all who sought refuge in the world of words. Every morning, Ms. Penelope Hart, the town’s beloved librarian, would unlock the doors precisely at nine o’clock, carrying with her a small basket filled with fresh scones she baked herself. Children would often race down the cobbled streets, their laughter echoing between the stone buildings, eager to claim their favorite reading nooks before they were taken. The library wasn’t just a place to read; it was the beating heart of the community, a place where ideas blossomed and friendships were born. Old Mr. Whitaker, a retired sailor, spent hours telling tales of the sea to wide-eyed listeners, while young Emily Langston scribbled furiously in her notebook, dreaming of one day writing stories of her own. Outside, the seasons painted the town in vivid colors: spring’s delicate pink blossoms, summer’s rich green canopy, autumn’s fiery reds and oranges, and winter’s quiet, snowy hush. Festivals marked each change, with townsfolk gathering in the square to share food, music, and laughter under strings of twinkling lights. Life in Maple Hollow moved at a pace set by the rhythm of nature rather than the ticking of a clock, and few wished it any other way. Even the occasional visitor who stumbled upon the town often found themselves enchanted by its charm, lingering longer than they had planned. Some said it was the scent of fresh bread from the bakery on Main Street; others believed it was the warmth of the people, their sincere smiles and unwavering hospitality. Perhaps it was the way the stars shone so brightly at night, unpolluted by the harsh lights of the city, offering a breathtaking canopy to anyone who cared to look up. Whatever the reason, those who found their way to Maple Hollow rarely wanted to leave, and many who did left a piece of their heart behind. In a world that often seemed too fast, too loud, and too complicated, Maple Hollow remained a sanctuary of simplicity and connection, a gentle reminder that happiness often grows in the places we least expect it, nurtured by the small, everyday kindnesses of ordinary people living extraordinary lives. The clock tower that rose above the town square chimed every hour, its clear, resonant tones carrying on the breeze, not as a warning of time slipping away, but as an invitation to savor each passing moment. And so the days rolled on, one after another, a tapestry of memories woven with laughter, love, and an unspoken promise that here, in this little hollow sheltered by hills and hope, life would always be just a little sweeter, and dreams would always find a place to take root.

For the random sample, I will take the full alphabet and repeat it a few times. This gives each character equivalent frequency, creating an equally flat distribution of characters across the entire character set for any given base, which is pretty good for simulating randomness. There are other ways to represent a perfectly random string in any base. This is not perfect if randomness also considers a lack of repeating patterns (such as period) but for this tool I find it sufficient. The values are not computed on the fly, they are hard-coded. So if you have better values and can share how you got to them, feel free to reach out.