首页> 外国专利> The bit commitment system, bit commitment manner, the bit commitment transmitting device and the bit commitment receiving device, bit commitment transmission manner and bit commitment reception manner, information m

The bit commitment system, bit commitment manner, the bit commitment transmitting device and the bit commitment receiving device, bit commitment transmission manner and bit commitment reception manner, information m

机译:比特承诺系统,比特承诺方式,比特承诺发送设备和比特承诺接收设备,比特承诺发送方式和比特承诺接收方式,信息m

摘要

PROBLEM TO BE SOLVED: To provide a non-interactive and multiple bit commitment type bit commitment system.;SOLUTION: This bit commitment system comprises: a transmitting device for transmitting information (m); a receiving device; and a public opening device. The public opening device opens common reference information (crs) including function indexes (s) of ABO-TDF to the public. The transmitting device is provided with: a signature creating part for obtaining cO using the ABO-TDF from the function index (s) and a random number (ra) with a verification key (vk) as a loss branch, randomizing cO using a random number (rb) to generate c1, obtaining c2 from a random number (ra) and the information (m), and creating a signature from c1 and c2 using a signature key (sk); and a commitment creating part for creating a commitment (com) including c1, c2 and . The receiving device is provided with a commitment verifying part for verifying the commitment (com) by using the common reference information (crs) and opening information M.;COPYRIGHT: (C)2010,JPO&INPIT
机译:解决的问题:提供一种非交互式的多比特承诺类型的比特承诺系统。解决方案:该比特承诺系统包括:用于传输信息的传输设备(m);接收装置;和公共开放装置。公众开放装置向公众开放包括ABO-TDF的功能索引的公共参考信息(crs)。发送装置具备:签名生成部,该签名生成部使用ABO-TDF从函数索引和以验证密钥(vk)为损失分支的随机数(ra)获得cO,使用随机数对cO进行随机化。数字(rb)生成c1,从随机数(ra)和信息(m)获得c2,并使用签名密钥(sk)从c1和c2创建签名;承诺创建部分,用于创建包括c1,c2和的承诺(com)。接收设备具有承诺验证部分,用于通过使用公共参考信息(crs)和打开信息M来验证承诺(com)。;版权所有:(C)2010,JPO&INPIT

著录项

  • 公开/公告号JP5227201B2

    专利类型

  • 公开/公告日2013-07-03

    原文格式PDF

  • 申请/专利权人 日本電信電話株式会社;

    申请/专利号JP20090008482

  • 发明设计人 西巻 陵;藤崎 英一郎;

    申请日2009-01-19

  • 分类号G09C1;H04L9/32;

  • 国家 JP

  • 入库时间 2022-08-21 16:56:34

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