File encryption with a browser.

I've been exploring the #WebCryptoAPI and I'm impressed!

When combined with the #FileSystemAPI, it offers a seemingly secure way to #encrypt and #store files directly on your device. Think #localstorage, but with #encryption!

I know #webapps can have #security vulnerabilities since the code is served over the web, so I've #OpenSourced my demo! You can check it out, and it should even work if #selfhosted on #GitHubPages.

Live Demo: https://dim.positive-intentions.com/?path=/story/usefs--encrypted-demo

Demo Code: https://github.com/positive-intentions/dim/blob/staging/src/stories/05-Hooks-useFS.stories.js

Hook Code: https://github.com/positive-intentions/dim/blob/staging/src/hooks/useFS.js

IMPORTANT NOTES (PLEASE READ!):
* This is NOT a product. It's for #testing and #demonstration purposes only.
* It has NOT been reviewed or audited. Do NOT use for sensitive data.
* The "password encryption" currently uses a hardcoded password. This is for demonstration, not security.
* This is NOT meant to replace robust solutions like #VeraCrypt. It's just a #proofofconcept to show what's possible with #browser #APIs.

How Will #Bitcoin Defend Against #QuantumComputing? This Project Just Raised $6M

> Project 11 is working on protecting the leading #crypto network against the potential threat.

https://decrypt.co/326065/how-bitcoin-defend-against-quantum-computing-project-raised-6m

I think it's cool that web browsers have built in APIs for doing #cryptography stuff without needing to worry about pulling in dependencies.

https://www.keithbartholomew.com/blog/posts/2024-01-22-webcrypto-diffie-hellman/

It's unfortunate but true that the best way to make something secure is to make it as inconvenient to use as possible; even for legitimate users.

Crowdsourcing SIGINT: Ham Radio at War - I often ask people: What’s the most important thing you need to have a successful ... - https://hackaday.com/2025/06/12/crowdsourcing-sigint-ham-radio-at-war/ #cryptography #radiohacks #worldwarii #hamradio #history #wwii

If you're not following @gutenberg_org you are missing out.

A wonderful source of everything from #cryptography through #art, #feminism to the #philosophy of #physics and a whole lot more I can't make vaguely alliterate.

#ProjectGutenberg - free #ebooks

Everything You Need to Know About Cryptography (History & Examples)

Cryptography is the art of hiding the meaning of a text from everyone except the intended receivers through the use of various techniques.

by Sourima Rana

Cryptography at PG:
https://www.gutenberg.org/ebooks/subject/7599

I wrote about #openssl #jdk21 and #pkcs12 #cryptography #debian #fedora https://kushaldas.in/posts/openssl-legacy-and-jdk-21.html
#java

Got to the good part of my nighttime reading: Substitution-Permutation Networks. This book is great because the equations, examples and diagrams all support each other in a way that I just keep flipping between the three for each concept until I understand the sum of the parts. #cryptography

How Many #Qubits Will It Take to Break Secure Public Key #Cryptography Algorithms?

https://it.slashdot.org/story/25/05/24/0530234/how-many-qubits-will-it-take-to-break-secure-public-key-cryptography-algorithms

Wow. Just learned that John Young passed away in March. A public disclosure pioneer and absolute free thinker.

#infosec #cryptography #cryptome

https://www.theregister.com/2025/05/24/john_young_obituary/

A Presence-sensing drive for Securely Storing Secrets - When we hear about flash drives in the context of cybersecurity, we tend to think... - https://hackaday.com/2025/05/24/a-presence-sensing-drive-for-securely-storing-secrets/ #usbmassstorage #securityhacks #cryptography #unlockable

OSIRIS, the student-run #cybersecurity research lab at NYU, is seeking #challenge writers for our upcoming CSAW #CTF later this year! (For those who don't know CSAW, it's one of the largest student-run #cybersec events in the world: https://csaw.io ) Web, #ReverseEngineering, #pwn, and #cryptography challenges are prioritized, and all experience levels welcome. Interested? Shoot me a DM or email osiris@osiris.cyber.nyu.edu.

https://youtu.be/DtPKBngQcEQ?si=lyLhi-M5l8h0ff7H

During the Cold War, the US government tried to stop the export of strong cryptography, Classifying strong encryption algorithms as "arms".

This video will (briefly) delve into the history behind this event, how software (mainly Phil Zimmerman & PGP) fought the government & won.

We need to KEEP fighting, and not let oppressive governments, restrict the use of Encryption.

Since I wrote a SHA-3 implementation in Raku while also writing one in Lean 4, I thought I might as well share the Raku version too. Raku is a fun language. You can find it here: https://github.com/gdncc/Obscure
#rakulang #cryptography

They were an odd crew: the thin old man with his head slightly cocked, the stocky girl running her thumb over a raspberry cane, the small boy watching individual leaves on the maple tree quiver as they were struck by the first drops of rain.

"What's with them?" Marius asked.

"They're #code-breakers," Quentin replied. "The old man knows the code of changing air pressure. The girl reads the code in plants' defensive barbs. And the boy interprets rain."

Multi-party key recovery — perhaps the real 2nd factor was the friends we made along the way