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31. 发明授权

US07917764B2 Signature generation device and signature verification device 有权
标题翻译：签名生成装置和签名验证装置
公开(公告)号：US07917764B2
公开(公告)日：2011-03-29
申请号：US11795871
申请日：2006-01-17
申请人： Yuichi Futa , Shingo Hasegawa , Shuji Isobe , Motoji Ohmori , Hiroki Shizuya
发明人： Yuichi Futa , Shingo Hasegawa , Shuji Isobe , Motoji Ohmori , Hiroki Shizuya
IPC分类号： H04L9/00
CPC分类号： H04L9/3247 , G06F9/30007 , H04L9/3263
摘要： A signature generation apparatus capable of preventing transcript attack on signature data is provided. The signature generation apparatus performing a digital signature operation with the use of a signature key: stores the signature key; performs the digital signature operation on signature target data with the use of the signature key to generate signature data; counts the cumulative count of digital signature operations having been performed by the signature generation unit with the use of the signature key; judges whether the cumulative count has reached a predetermined count; and inhibits the use of the signature key in the digital signature operation from then onward in a case where the judgment unit determines that the cumulative count has reached the predetermined count.
摘要翻译：提供了能够防止对签名数据进行转录攻击的签名生成装置。签名生成装置使用签名密钥执行数字签名操作;存储签名密钥; 使用签名密钥对签名目标数据执行数字签名操作，生成签名数据; 使用签名密钥对由签名生成单元执行的数字签名操作的累积计数进行计数; 判断累积计数是否达到预定计数; 并且在判断单元确定累积计数已达到预定计数的情况下，禁止在数字签名操作中使用签名密钥。

32. 发明授权

US07792286B2 Signature generation device and signature verification device 有权
标题翻译：签名生成装置和签名验证装置
公开(公告)号：US07792286B2
公开(公告)日：2010-09-07
申请号：US11578978
申请日：2006-04-10
申请人： Yuichi Futa , Shingo Hasegawa , Shuji Isobe , Motoji Ohmori , Hiroki Shizuya
发明人： Yuichi Futa , Shingo Hasegawa , Shuji Isobe , Motoji Ohmori , Hiroki Shizuya
IPC分类号： H04K1/00 , H04L9/00 , H04L9/28 , H04L9/30 , H04L9/32
CPC分类号： H04L9/3093 , H04L9/3255
摘要： A signature generation apparatus and a signature verification apparatus preventing an occurrence of an inappropriate signature verification error. The signature generation apparatus (110) including a signature generation unit (114) calculating signature vector (s, t) for a message m using a private key, and generating signature data S indicating polynomials sl and sh specifying the polynomial s and a polynomial th which is a quotient when the polynomial t is divided by q.
摘要翻译：签名生成装置和签名验证装置，用于防止发生不正当的签名验证错误。签名生成装置（110）包括使用专用密钥计算消息m的签名向量（s，t）的签名生成部（114），生成指定多项式s的多项式sl和sh的签名数据S以及多项式th 当多项式t除以q时，它是商。

33. 发明授权

US07664260B2 Signature generation device, key generation device, and signature generation method 有权
标题翻译：签名生成装置，密钥生成装置和签名生成方法
公开(公告)号：US07664260B2
公开(公告)日：2010-02-16
申请号：US11795256
申请日：2006-01-17
申请人： Yuichi Futa , Shingo Hasegawa , Shuji Isobe , Motoji Ohmori , Hiroki Shizuya
发明人： Yuichi Futa , Shingo Hasegawa , Shuji Isobe , Motoji Ohmori , Hiroki Shizuya
IPC分类号： H04L9/00 , H04L9/30
CPC分类号： H04L9/14 , G06F9/30007 , H04L9/3066 , H04L9/3093 , H04L9/3247
摘要： A signature generation apparatus preventing an transcript attack on signature data. The signature generation apparatus for generating signature data for message data (i) acquires, according to a predetermined acquisition method, a private key, which is different from a private key used in a previous digital signature operation, from among a plurality of private keys generated using a key generation method of a signature scheme in which the plurality of private keys correspond to a single public key, and (ii) performs, using the acquired private key, a digital signature operation on the message data according to a signature method of the signature scheme to generate the signature data.
摘要翻译：一种防止对签名数据进行转录攻击的签名生成装置。用于生成消息数据的签名数据的签名生成装置（i）根据预定的获取方法从生成的多个私钥中获取与先前的数字签名操作中使用的私钥不同的私钥使用其中所述多个私钥对应于单个公钥的签名方案的密钥生成方法，以及（ii）使用所获取的私钥对所述消息数据执行数字签名操作，所述签名方法根据所述签名方法签名方案来生成签名数据。

34. 发明申请

US20090235078A1 Signature generation apparatus and signature verification apparatus 有权
标题翻译：签名生成装置和签名验证装置
公开(公告)号：US20090235078A1
公开(公告)日：2009-09-17
申请号：US11578978
申请日：2006-04-10
申请人： Yuichi Futa , Shingo Hasagawa , Shuji Isobe , Motoji Ohmori , Hiroki Shizuya
发明人： Yuichi Futa , Shingo Hasagawa , Shuji Isobe , Motoji Ohmori , Hiroki Shizuya
IPC分类号： H04L9/32 , H04L9/30 , H04L9/14
CPC分类号： H04L9/3093 , H04L9/3255
摘要： A signature generation apparatus and a signature verification which can surely prevent occurrence of inappropriate signature verification error are providedA signature generation apparatus (110) includes a signature generation unit (114) which calculates a signature vector (s, t) for a message m using a private key, and generates signature data S indicating polynomials sl and sh that can specify the polynomial s and a polynomial th which is a quotient when the polynomial t is divided by q.
摘要翻译：一种签名生成装置和可以肯定地防止发生不适当的签名验证错误的签名验证提供了一种签名生成装置（110），包括：签名生成部（114），其使用以下方式计算消息m的签名向量（s，t）：并且生成表示可以指定多项式s的多项式sl和sh的签名数据S，当多项式t除以q时，生成作为商的多项式th。

35. 发明申请

US20060159274A1 Apparatus, method and program utilyzing sound-image localization for distributing audio secret information 审中-公开
标题翻译：用于分发音频秘密信息的声像定位的装置，方法和程序
公开(公告)号：US20060159274A1
公开(公告)日：2006-07-20
申请号：US10761228
申请日：2004-01-22
申请人： Hiroki Shizuya , Masahiro Mambo
发明人： Hiroki Shizuya , Masahiro Mambo
IPC分类号： H04R5/00
CPC分类号： H04S1/002 , G10L19/018
摘要： An apparatus utilizing sound-image localization for distributing/sharing audio secret information is provided, the apparatus comprises: a first signal processor for distributing/sharing at lest one target sound as secret information into a plurality of stereo media, wherein the distribution is performed such that the sound-image of the target is shifted from the center position of the head when said plurality of stereo media are simultaneously played to be heard in a binaural manner; a second signal processor for distributing a plurality of decoy sounds as disturbing information into the said plurality of stereo media, wherein the distribution is performed such that the sound-image of the decoy sounds is localized to the center position of the head when said plurality of stereo media are simultaneously played to be heard in a binaural manner.
摘要翻译：提供一种利用声像定位来分配/共享音频秘密信息的装置，该装置包括：第一信号处理器，用于将至少一个目标声音作为秘密信息分配/共享到多个立体声媒体中，其中，当所述多个立体声媒体同时播放以双耳方式听到时，目标的声音图像从头部的中心位置偏移; 第二信号处理器，用于将多个诱饵声音作为干扰信息分配到所述多个立体声媒体中，其中执行所述分配，使得当所述多个立体声媒体中的诱饵声音的声像被定位到头部的中心位置时立体声媒体同时播放，以双耳方式听到。

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