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Carving Secret Messages out of Public Information | Science Publications

机译:从公共信息中剔除秘密信息|科学出版物

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> >This study shows that secret information can be shared or passed from a sender to a receiver even if not encoded in a secret message. In the protocol designed in this study, no parts of the original secret information ever travel via communication channels between the source and the destination, no encoding/decoding key is ever used. The two communicating partners, Alice and Bob, are endowed with coherent qubits that can be read and set and keep their quantum values over time. Additionally, there exists a central authority that is capable of identifying Alice and Bob to share with each half of entangled qubit pairs. The central authority also performs entanglement swapping. Our protocol relies on the assumption that public information can be protected, an assumption present in all cryptographic protocols. Also any classical communication channel need not be authenticated. As each piece of secret information has a distinct public encoding, the protocol is equivalent to a one-time pad protocol.
机译: > >此研究表明,即使未将秘密信息编码为秘密消息,也可以共享或将其从发送者传递到接收者。在本研究中设计的协议中,原始机密信息的任何部分都不会通过源与目的地之间的通信通道传播,也不会使用任何编码/解码密钥。两个通信伙伴爱丽丝和鲍勃都拥有连贯的量子位,可以读取和设置它们,并随着时间的推移保持其量子值。此外,还存在一个中央机构,它能够识别爱丽丝和鲍勃与纠缠的量子比特对的每半共享。中央机构还执行纠缠交换。我们的协议依赖于可以保护公共信息的假设,即所有密码协议中都存在的假设。同样,任何经典的通信信道也不需要认证。由于每条秘密信息都有不同的公共编码,因此该协议等效于一次性填充协议。

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