Unconditionally Secure Bit Commitment with Flying Qudits


In the task cryptographers call bit commitment, one party encrypts a prediction in a way that cannot be decrypted until they supply a key, but has only one valid key. Bit commitment has many applications, and has been much studied, but completely and provably secure schemes have remained elusive. Here we report a new development in physics-based… (More)
DOI: 10.1088/1367-2630/13/11/113015

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