公开(公告)号：MY153911A

公开(公告)日：2015-04-15

申请号：MYPI2010004432

申请日：2010-09-23

Applicant: MIMOS BERHAD

Inventor： HASIM NORSHAMSURI ALI ,  SAHARUDIN SUHAIRI ,  WAHIDDIN MOHAMED RIDZA

IPC: H04L9/08

Abstract: AN APPARATUS AND METHOD (100) FOR DUAL CODING COHERENT PHASE PROTOCOL IN QUANTUM KEY DISTRIBUTION (QKD) SYSTEM USING A COHERENT LASER SOURCE (102), AN INTENSITY MODULATOR (103) AND A PHASE MODULATOR (105) IS DISCLOSED. THE SYSTEM COMPRISES TWO LEVELS OF ENCODING AND SIX TYPES OF DECOY BITS TO FURTHER IMPROVE SECURITY OF THE SECRET KEYS. THE SYSTEM COMPRISES AN INTENSITY MODULATOR FOR INTENSITY CODING WHEREIN A SECRET KEY IS CODED, MEANS TO GENERATE A TRAIN OF PULSES WITH BITS ?1? FOR WEAK COHERENCE PULSE (WCP AND BITS ?0? FOR VACUUM PULSE; AND A PHASE MODULATOR FOR DIFFERENTIAL PHASE CODING COMPRISES THE INTENSITY CODED SECRET KEY FURTHER CODED WITH BITS ?1? FOR PHASE DIFFERENCE OF 0; BITS ?0? FOR PHASE DIFFERENCE OF ? FOR WEAK COHERENCE PULSE (WCP); AND DECOY BITS FOR OTHER ORIENTATION PHASE DIFFERENCE OF VACUUM PULSE AND WCP.

公开(公告)号：MY150359A

公开(公告)日：2013-12-31

申请号：MYPI2010004714

申请日：2010-10-07

Applicant: MIMOS BERHAD

Inventor： JAKSONO GUNAWAN WIT ,  HASIM NORSHAMSURI ALI ,  LAILI MUHAMMAD HAFIZ BIN ,  HISHAM MOHD HAFIZULFIKA BIN

IPC: H04L9/12

Abstract: THE PRESENT INVENTION RELATES TO AN APPARATUS (100) AND METHOD FOR AUTO COMPENSATING QUANTUM KEY DISTRIBUTION (QKD) NETWORK. THE APPARATUS (100) COMPRISES AN ALICE SETUP (1) FOR RECEIVING A TRANSMITTED SIGNAL FROM A BOB SETUP (2). THE ALICE SETUP (1) COMPRISES A PHASE MODULATOR (1 1). A SPINNING PROFILE SPLICING MEANS (10) AND AN OPTICAL CIRCULATOR (12) FOR SUITABLY COMPENSATING THE TRANSMITTED SIGNAL BEFORE RETURNING TO THE BOB SETUP (2). THE MOST ILLUSTRATIVE DRAWING: