Secure Communication Using Qubits

Details Secure Communication Using Qubits Secure Communication Using Qubits

2005-03-17

arxiv.org/abs/quant-ph/0503157v1

The Sixth IEEE International Conference on Computer and Information Technology, 2006. Seoul, South Korea

Physics

Quantum Physics

13 pages, submitted to the the 25th Annual International Cryptology Conference (Crypto 2005), dated 14/02/2005

Scientific paper

10.1109/CIT.2006.164

A two-layer quantum protocol for secure transmission of data using qubits is presented. The protocol is an improvement over the BB84 QKD protocol. BB84, in conjunction with the one-time pad algorithm, has been shown to be unconditionally secure. However it suffers from two drawbacks: (1) Its security relies on the assumption that Alice's qubit source is perfect in the sense that it does not inadvertently emit multiple copies of the same qubit. A multi-qubit emission attack can be launched if this assumption is violated. (2) BB84 cannot transfer predetermined keys; the keys it can distribute are generated in the process. Our protocol does not have these drawbacks. As in BB84, our protocol requires an authenticated public channel so as to detect an intruder's interaction with the quantum channel, but unlike in symmetric-key cryptography, the confidentiality of transmitted data does not rely on a shared secret key.

Affiliated with

Also associated with

No associations

Rating

Secure Communication Using Qubits does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Secure Communication Using Qubits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Secure Communication Using Qubits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-606371