Re: OT: how to securely produce a large data file for "one time tape" encryption input
- Posted by fizzpopsoft Aug 21, 2015
- 1986 views
I'll generate the random data using a PIC... http://www.romanblack.com/HardRNG/HardRNG1.htm
Then capture the plaintext, again on PIC http://fos.cmb.ac.lk/esl/ps2-keyboard-based-character-logger/
Do the XOR's on the PIC and then use RS232 to send only the enciphered bytes to the PC. With the hardware based RS232 I can build it so see the actual bytes and bits via LED's.
The transfer will be a send initiated by the PIC, so that has control.
Other than physical access issues, I think this will be secure.
Well yes, I could coat my room with foil (Faraday cage), install random coils to generate random heat and magnetism, run a UPS to prevent micro power spikes (keystrokes) from being remotely detected, white noise generator to rattle my windows glass etc etc but I think I'll be OK :)
