I know theres AES and PGP, but all electronics stuff still has backdoors. You can’t backdoor a piece of paper and a writing utensil.
I know theres AES and PGP, but all electronics stuff still has backdoors. You can’t backdoor a piece of paper and a writing utensil.
deleted by creator
In-band periodic key-exchange. Pre-arrange that keys expire every X messages, and that the last (Xth) message is dedicated to sending the new key encrypted by the previous one.
I’m certainly not an expert.
But could you generate pads from mutually accessible data sources?
Like use hit_me_baby_one_more_time_not_a_virus.mp3 appended with a password, as a seed in a pseudo random number generating algorithm, then do the same thing with another data source, repeat however many times, then XOR the generated numbers together, and use the result as a pad?
Steganography may be interesting in that vein. Hiding data within larger images / sound files etc.
That’s no longer a one time pad. That’s closer to a homebrew stream cipher with the weakness of having a key that you just hope no one notices.
This is how all modern cryptography works. A deterministic cipher is functionally no different from pig Latin when it comes to actual security. An electronic solution like public key cryptography is infinitely more secure. If you’re especially paranoid you can generate the cryptotext locally and send it by email; that would be much safer than anything you could achieve by hand.
That’s why you make a stack of them. Generate hundreds up-front and you don’t need to generate new every time.
deleted by creator