首页> 外国专利> PARAMETER GENERATING DEVICE, KEY SHARING SYSTEM, PUBLIC KEY CRYPTOSYSTEM, ELECTRONIC SIGNATURE SYSTEM, SENDING KEY CREATING DEVICE, FIRST KEY SHARING APPARATUS, SECOND KEY SHARING APPARATUS, ENCRYPTING APPARATUS, DECRYPTING APPARATUS, SIGNATURE APPARATUS, AUTHENTICATION APPARATUS, PARAMETER GENERATING METHOD, SENDING KEY CREATING METHOD, KEY SHARING METHOD, ENCRYPTING METHOD, DECRYPTING METHOD, KEY PAIR CREATING METHOD, SIGNATURE METHOD, AUTHENTICATION METHOD, AND PROGRAM

PARAMETER GENERATING DEVICE, KEY SHARING SYSTEM, PUBLIC KEY CRYPTOSYSTEM, ELECTRONIC SIGNATURE SYSTEM, SENDING KEY CREATING DEVICE, FIRST KEY SHARING APPARATUS, SECOND KEY SHARING APPARATUS, ENCRYPTING APPARATUS, DECRYPTING APPARATUS, SIGNATURE APPARATUS, AUTHENTICATION APPARATUS, PARAMETER GENERATING METHOD, SENDING KEY CREATING METHOD, KEY SHARING METHOD, ENCRYPTING METHOD, DECRYPTING METHOD, KEY PAIR CREATING METHOD, SIGNATURE METHOD, AUTHENTICATION METHOD, AND PROGRAM

机译：参数生成设备，密钥共享系统，公共密钥加密系统，电子签名系统，发送密钥创建设备，第一个密钥共享设备，第二个密钥共享设备，加密密钥设备，解密密钥，签名密钥，签名密钥，签名密钥，签名密钥方法，密钥共享方法，加密方法，解密方法，密钥对创建方法，签名方法，认证方法和程序

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PROBLEM TO BE SOLVED: To generate a parameter x which makes it difficult to solve an order determination problem (here, the order determination problem is a problem of obtaining a positive integer d that satisfies y=Td(x) mod N from a parameter N, a parameter x (x and N are integers, and 0xN), and an integer y (0yN)) which is constituted, by considering a d-th order Chebyshev polynomial Td(x) on the power-of-two residue ring Z/NZ (N=2W and w is an integer of 3).;SOLUTION: A parameter generating device calculates and generates, by using the parameter N of the order determination problem and a properly set prescribed value, a parameter x satisfying the condition that the number of factors 4 included in an integer q defined by q=x²-1 mod N (132) is larger than a prescribed value.;COPYRIGHT: (C)2010,JPO&INPIT

机译：解决的问题：生成难以解决定单确定问题的参数x（这里，定单确定问题是从参数N获得满足y = Td（x）mod N的正整数d的问题，参数x（x和N为整数，0x 2 -1 mod N（132）定义的整数q中包含的因子4的数目大于规定值。;版权：（C）2010，JPO＆INPIT

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公开/公告号JP2010002786A

专利类型
公开/公告日2010-01-07

原文格式PDF
申请/专利权人 ISHII MASAHARU;CHAOSWARE INC;
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申请/专利号JP20080162622
发明设计人 ISHII MASAHARU;UMENO TAKESHI;
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申请日2008-06-21
分类号G09C1;
国家 JP
入库时间 2022-08-21 18:59:23

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