Re:Toshiba reports milestone in quantum cryptography
by freemint on Saturday August 28, 2021 @10:11AM
(#28338220)
You are ignoring one important aspect, namely timing. The speed of light is well known so if the latency suddenly increases when accessing information that is not available at the MITM you know the connection is compromised.
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Re:Toshiba reports milestone in quantum cryptography
by cryptonector on Saturday August 28, 2021 @07:35PM
(#28342545)
Well, so how much latency would an MITM add? If it's small enough, then forget it, this won't do.
Re:Toshiba reports milestone in quantum cryptography
by freemint on Saturday August 28, 2021 @08:34PM
(#28342892)
If think the sender can force an arbitrary latency in decoding with a signal with noise added but i might be wrong. If the MITM sends a signal before the measurement is complete (ccertainty that the noise is leaning one way is above threshold) he either produces unlikely signals (detectable, since all the information is sent after the decode, htus the signals entropy will vay with time n a stair step way) or he occasionally transmits a wrong signal.