TY  - JOUR
A1  - Hoffmann, H.
A1  - Boström, Kim
A1  - Felbinger, Timo
T1  - Comment on Secure direct communication with a quantum one-time pad
N2  - In the paper [Phys. Rev. A 69, 052319 (2004)], a quantum direct communication protocol is proposed which is claimed to be unconditionally secure even for the case of a noisy channel. We show that this is not the case by giving an undetectable attack scheme
Y1  - 2005
ER  -