DUAL CODING COHERENT PHASE PROTOCOL
    1.
    发明申请
    DUAL CODING COHERENT PHASE PROTOCOL 审中-公开
    双编码相关协议

    公开(公告)号:WO2012039595A1

    公开(公告)日:2012-03-29

    申请号:PCT/MY2010/000303

    申请日:2010-11-29

    CPC classification number: H04L9/0858

    Abstract: An apparatus and method (100) for dual coding coherent phase protocol in Quantum Key Distribution (QKD) system using a coherent laser source (102), an intensity modulator (103) and a phase modulator (105) is disclosed. The system comprises two levels of encoding and six types of decoy bits to further improve security of the secret keys. The system comprises an intensity modulator for intensity coding wherein a secret key is coded, means to generate a train of pulses with bits '1' for weak coherence pulse (WCP and bits O' for vacuum pulse; and a phase modulator for differential phase coding comprises the intensity coded secret key further coded with bits T for phase difference of 0; bits '0' for phase difference of TT for weak coherence pulse (WCP); and decoy bits for other orientation phase difference of vacuum pulse and WCP.

    Abstract translation: 公开了一种用于使用相干激光源(102),强度调制器(103)和相位调制器(105)在量子密钥分配(QKD)系统中对相位相位协议进行双重编码的装置和方法(100)。 该系统包括两个级别的编码和六种类型的诱饵位,以进一步提高秘密密钥的安全性。 该系统包括用于对密钥进行编码的强度编码的强度调制器,用于为弱相干脉冲(WCP和用于真空脉冲的位0')产生具有比特'1'的脉冲序列的装置;以及用于差分相位编码的相位调制器 包括对于相位差为0的比特T进一步编码的强度编码秘密密钥;用于弱相干脉冲(WCP)的TT的相位差的比特“0”;以及真空脉冲和WCP的其他取向相位差的诱饵比特。

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