-----BEGIN PGP SIGNED MESSAGE----- Ben replies;
Ok, I'm new to this crypto bit so I probably will have more mistakes here than correct answers. Anyways I'm going to give a shot.
1)If you have the secure channel(sneakernet) that you have to re-init each time you use th eone time pad, then this will be most likely a novelty, since Lousie could have slipped Thelma the plaintext when she slipped her the pad.
2)If you're using a pad like this, if I'm not mistaken isn't this what Kahn calls a 'book cipher' where it would be simpler to crack than a true one time pad that is truly random.
3)Thelma could have used stenographic technology to send the same information, she could have used faxes that when decoded could yield a message(kinda like the old punch cards)
Anyways, this is just the view of a complete rank amateur. Give me feedback y'all.
Thanks for your comments Ben. Yes this does suffer from all the same problems of a classic one time pad. (pad exchange etc) Obviously Thelma and Louise should have exchanged mutiple pads well in advance,(and are co-conspirators) and the "pseudorandom pad" E would be exchanged through an alternate path (intercompany mail,sneakernet,messenger,etc). The part I find fun is that assuming random file B is truly random, say from an RS232 "crypto-dongle" (if anyone builds them, count me in!) then ciphertext file C is unbreakable, It dosen't matter if E is random or not, C is still unbreakable, and using E to decrypt will only produce D. This was not intended as a cure all, just an interesting application of cryptography that has interesting effects in the world of corporate politics as well. One small step for cypherpunks..... Brian Williams Extropian Cypherpatriot "Cryptocosmology: Sufficently advanced comunication is indistinguishable from noise." --Steve Witham "Have you ever had your phones tapped by the government? YOU WILL and the company that'll bring it to you.... AT&T" --James Speth -----BEGIN PGP SIGNATURE----- Version: 2.3a iQCVAgUBLckIjNCcBnAsu2t1AQEubAP7B3t3cIiUkZXESOA53OMcXbpdLnu7qZXf Z+Q7tFC9kzYL9+weGXHVC2aEnjsjDUbxEYHgz4vw+T9fBdFr2g2RcQqM36+dKee+ BfuOtwKY4UCKtjw8W/BETaUpK2aNjeO2pXBdrzVpZHXu6xyM2n2QFmm4GiUDYPO9 xdzq0JcVH4U= =oPn1 -----END PGP SIGNATURE-----