Bear writes: > In this case you'd need to set up the wires-and-gates model > in the QC for two ciphertext blocks, each attached to an > identical plaintext-recognizer function and attached to the > same key register. Then you set up the entangled state, > and collapse the eigenvector on the eigenstate where the > ciphertext for block A and block B is produced, and the > plaintext recognizer for both block A and block B return > "1", and then you'd read the plaintext and key out of the > appropriate locations (dots?) in the qchip.
The problem is that you can't forcibly collapse the state vector into your wished-for eigenstate, the one where the plaintext recognizer returns a 1. Instead, it will collapse into a random state, associated with a random key, and it is overwhelmingly likely that this key is one for which the recognizer returns 0. --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]
