Two-way quantum cryptography with continuous variables: unconditional security and performances at different wavelengths
Carlo Ottaviani, Stefano Pirandola · Research in Optical Sciences · 2014
In first place we analysed the security of two-way QKD against coherent attacks achieving unconditional security in all encoding/decoding configurations. In second place we studied the security, at different wavelengths, of two-way thermal QKD finding a robust threshold in reverse reconciliation, improving the security distances for continuous variable quantum cryptography in the infrared.