The performance of various quantum-key-distribution systems is analyzed using 1.55-μm up-conversion single-photon detector. Important parameters such as communication rate, error rate, quantum efficiency and dark count rate are discussed. It is shown that quantum efficiency depends on the pump power, and that 1.55-μm up-conversion single-photon detector has great advantage over the InGaAs avalanche photodiodes detector. The analysis is based on the secure communication rate and error rate as a function of distance for three quantum-key-distribution(QKD) protocols: the Bennett-Brassard 1984, the Bennett-Brassard-Mermin 1992, and the differential-phase-shift-keying protocols. We consider that the secure communication rate of the three protocols against an arbitrary individual attack, including the most commonly considered intercept-resend and photon-number splitting attacks, and concluded that the simple and efficient differential-phase-shift-keying protocol allows for more than 200 km of secure communication distance with high communication rate.