Software description
The QKD-Cascade program uses the Cascade protocol in the error correction layer on quantum key distribution (QKD) systems. The protocol, defined in Secret-key reconciliation by public discussion LNCS 765, allows a string of bits exchanged between two ends of a communication to be corrected. The bit string is what we know as key in a QKD system and the ends (or callers) are referred to as Alice and Bob.
The main feature of the Cascade protocol is enabling correction of a high error percentage (as is the case in QKD systems where we can come across error probabilities that may waive between 2% and 8%), while trying to minimise the amount of information (parity bits) provided to make the correction.
Reference
M-008489/2009
