PAIRING CIPHERING DEVICE, PAIRING CIPHERING CALCULATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To speedily perform pairing calculation of elliptic curve cryptography. SOLUTION: In the program for pairing calculation shown in the figure, calculations are carried out to obtain the coefficients of the formulae of straight lines 11, 12 for the pairing calculation by defining a function TDBL and using values obtained in the process of calculating elliptic duplication. Or, calculations are carried out to obtain the coefficients of the formulae of the straight lines 11, 12 for the pairing calculation by using the values obtained in the process of calculating elliptic addition and by defining a function TADD. COPYRIGHT: (C)2004,JPO