| 摘要 |
This invention provides a quantum key distribution (QKD) system and method for determining initial quantum keys (QKs), including an initial QKA (220) and an initial QKB (230), determining an initial QKA value of a first function applied to said initial QKA, wherein a value of said first function depends upon values of specified information unit of a QK, including bit i (210), determining an initial QKB value of said first function applied to said initial QKB; and forming a revised QKA by depending a value of an information unit of said revised QKA on a value of information unit i of said initial QKA, if said initial QKA value equals said initial QKB value.
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