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    • 31. 发明申请
    • ANONYMOUS CREDENTIAL SYSTEM, USER DEVICE, VERIFICATION DEVICE, ANONYMOUS CREDENTIAL METHOD, AND ANONYMOUS CREDENTIAL PROGRAM
    • 匿名证书系统,用户设备,验证设备,匿名认证方法和匿名认证程序
    • US20130073845A1
    • 2013-03-21
    • US13700348
    • 2011-05-23
    • Isamu TeranishiJun Furukawa
    • Isamu TeranishiJun Furukawa
    • H04L9/32
    • H04L9/3255H04L9/3221H04L9/3268H04L2209/42
    • A signature unit, in which a user device generates/transmits digital signature data to an authentication device, includes: a first function, which receives as input a plurality of subsets in which a plurality of characteristics of the users are classified; a second function, which generates a first encrypted text acquired by encrypting a user device public key with an identification device public key; a third function, which generates a second encrypted text, acquired by encrypting characteristic values belonging to a specific subset among the subsets with a characteristic value disclosure device public key; and a fourth function, which employs portions of a group public key and a member certificate to generates a signature of knowledge that denotes that data, of multiplication of a portion of the user device public key and all of the numerical values of a characteristic value certificate corresponding to each of the characteristics, satisfies the specific conditions.
    • 用户设备向认证设备生成/发送数字签名数据的签名单元包括:第一功能,其接收用户的多个特征被分类的多个子集作为输入; 第二功能,其生成通过用识别设备公钥加密用户设备公钥而获取的第一加密文本; 第三功能,其生成通过使用特征值公开设备公钥加密属于所述子集中的特定子集的特征值而获取的第二加密文本; 以及第四功能,其使用组公钥和成员证书的部分来生成表示用户设备公钥的一部分与特征值证书的所有数值的乘法的数据的知识签名 对应于每个特性,满足具体条件。
    • 33. 发明授权
    • Mix-net system
    • 混合网络系统
    • US08223973B2
    • 2012-07-17
    • US12684192
    • 2010-01-08
    • Jun FurukawaKazue Sako
    • Jun FurukawaKazue Sako
    • H04L9/00
    • H04L9/14H04L9/0825H04L9/3066H04L9/3218H04L9/3236H04L2209/463
    • Each participant apparatus (103) encrypts a plaintext by using a secret key of secret key cryptography, encrypts the encryption key by a public key, and sends the plaintext and public key to a substitution/decryption apparatus (112). With this processing, the limitation on the length of a ciphertext to be processed can be eliminated. In this invention, a verifiable proof text using a public key by each substitution/decryption apparatus is verified by a verification apparatus (109) by using the public key. If one of a plurality of organizations to decrypt and shuffle ciphertexts has not correctly executed the operation, a third party can specify it and prove that the specified organization is unauthorized.
    • 每个参与者装置(103)通过使用秘密密钥密码术的秘密密钥加密明文,通过公钥加密加密密钥,并将明文和公钥发送到替换/解密装置(112)。 通过该处理,可以消除对要处理的密文的长度的限制。 在本发明中,由验证装置(109)通过使用公开密钥对每个替换/解密装置使用公开密钥的可验证证明文本进行验证。 如果解密和解密密文的多个组织中的一个没有正确地执行该操作,则第三方可以指定它并且证明指定的组织是未授权的。
    • 35. 发明申请
    • KEY EXCHANGE DEVICE
    • 钥匙交换装置
    • US20100199093A1
    • 2010-08-05
    • US12670841
    • 2008-06-09
    • Jun Furukawa
    • Jun Furukawa
    • H04L9/32H04L9/08H04L9/14
    • H04L9/0841
    • The present invention includes a section (102) for generating a plurality of contributing random numbers using a random number, a section (110) for generating a plurality of contributing data using a plurality of contributing random numbers, a section (103) for selecting a number designating contributing data, a section (104) for generating a commitment of the number, a section (126) for saving a contributing random number of the number and disclosure information of the commitment, a section (125) for sending the plurality of contributing data and the commitment section (134) for generating auxiliary data using a contributing data set and the contributing random number, wherein the auxiliary data and the disclosure information of the commitment are sent from the section (125), and a section (139) for generating a shared key using the contributing data set, the disclosure information of the commitment, the auxiliary data, and the contributing random number.
    • 本发明包括用于使用随机数生成多个贡献随机数的部分(102),用于使用多个贡献随机数生成多个贡献数据的部分(110),用于选择 指定贡献数据的编号,用于产生编号的承诺的部分(104),用于保存所述承诺的数量和公开信息的贡献随机数的部分(126),用于发送所述多个贡献的部分(125) 数据和承诺部分(134),用于使用贡献数据集和贡献随机数来生成辅助数据,其中辅助数据和承诺的公开信息是从部分(125)发送的,以及用于 使用贡献数据集,承诺的公开信息,辅助数据和贡献的随机数来生成共享密钥。
    • 37. 发明申请
    • SYSTEM FOR DISABLING UNAUTHORIZED PERSON, ENCRYPTION DEVICE, ENCRYPTION METHOD, AND PROGRAM
    • 用于禁止未经授权的人员,加密设备,加密方法和程序的系统
    • US20090180619A1
    • 2009-07-16
    • US12302734
    • 2007-05-29
    • Jun FurukawaSatoshi Obana
    • Jun FurukawaSatoshi Obana
    • H04L9/06H04L9/30
    • H04L9/0838H04L9/0894H04L9/304H04L2209/601
    • A system for disabling an unauthorized person includes an encryption device (400) and a decryption device (500). The encryption device (400) stores distribution member set data, a random number, and a public key, the distribution member set data being information on members who are permitted to decrypt a cyphertext, and generates and distributes, when a shared key is input, an error-containing cyphertext which is a cyphertext containing the shared key, the distribution member set data, and error information different for each of the members, and an error correction cyphertext which is a cyphertext of the error information. The decryption device (500) is connected to the encryption device, stores the public key and a secret key corresponding to the own device, determines, upon reception of the error-containing cyphertext and the error correction cyphertext from the encryption device, whether the own device is included in the distribution member set data, decrypts, if the own device is included in the distribution member set data, the error-containing cyphertext and the error correction cyphertext with the public key and the secret key, and removes the error information from the decrypted error-containing cyphertext to output the shared key.
    • 用于禁用未授权人的系统包括加密设备(400)和解密设备(500)。 加密装置(400)存储分发成员集数据,随机数和公开密钥,分发成员集合数据是关于允许解密密文的成员的信息,并且当共享密钥被输入时生成和分发, 包含共享密钥,分发成员集合数据和每个成员不同的错误信息的密码文本的错误包含密文,以及作为错误信息的密文的纠错密码文本。 解密装置(500)连接到加密装置,存储公钥和与本装置对应的秘密密钥,在从加密装置接收到含错误的密码文本和纠错密码文本的情况下,确定自己的密钥 设备被包括在分发成员集数据中,如果自己的设备包括在分发成员集数据中,则使用公钥和秘密密钥对包含错误的密码文本和错误校正密码文本进行解密,并将错误信息从 解密的含错误的cyphertext输出共享密钥。
    • 38. 发明申请
    • Mixnet system
    • Mixnet系统
    • US20060262933A1
    • 2006-11-23
    • US10546645
    • 2005-01-24
    • Jun Furukawa
    • Jun Furukawa
    • H04L9/28H04L9/30H04L9/00H04K1/00
    • H04L9/14H04L9/0825H04L9/3066H04L9/3218H04L9/3236H04L2209/463
    • Each participant apparatus (103) encrypts a plaintext by using a secret key of secret key cryptography, encrypts the encryption key by a public key, and sends the plaintext and public key to a substitution/decryption apparatus (112). With this processing, the limitation on the length of a ciphertext to be processed can be eliminated. In this invention, a verifiable proof text using a public key by each substitution/decryption apparatus is verified by a verification apparatus (109) by using the public key. If one of a plurality of organizations to decrypt and shuffle ciphertexts has not correctly executed the operation, a third party can specify it and prove that the specified organization is unauthorized.
    • 每个参与者装置(103)通过使用秘密密钥密码术的秘密密钥加密明文,通过公钥加密加密密钥,并将明文和公钥发送到替换/解密装置(112)。 通过该处理,可以消除对要处理的密文的长度的限制。 在本发明中,由验证装置(109)通过使用公开密钥对每个替换/解密装置使用公开密钥的可验证证明文本进行验证。 如果解密和解密密文的多个组织中的一个没有正确地执行该操作,则第三方可以指定它并且证明指定的组织是未授权的。
    • 40. 发明申请
    • Method of identifying defect distribution in silicon single crystal ingot
    • 识别硅单晶锭缺陷分布的方法
    • US20050183660A1
    • 2005-08-25
    • US10784411
    • 2004-02-23
    • Jun FurukawaKazunari KuritaKazuhiro Harada
    • Jun FurukawaKazunari KuritaKazuhiro Harada
    • C30B15/00C30B21/06C30B25/18C30B27/02C30B28/10C30B29/06C30B30/04C30B33/00
    • C30B33/00C30B25/18C30B29/06Y10T117/1008
    • A surface of a reference sample is contaminated with a transition metal, and a heat treatment is performed to diffuse the transition metal in the sample. A concentration of recombination centers formed by the transition metal is measured in the entire heat-treated reference sample, and a region [V], a region [Pv], a region [Pi], and a region [I] in the reference sample are defined based on the values measured. Meanwhile, recombination lifetimes associated with the transition metal are measured in the entire heat-treated reference sample. Based on both of the measurement results, a correlation line of the concentration of recombination centers and the recombination lifetimes is produced. A surface of the measurement sample is contaminated with the transition metal, and a heat treatment is performed to diffuse the transition metal in the sample. Recombination lifetimes associated with the transition metal are measured in the entire heat-treated measurement sample, and the values measured are checked against the correlation line to infer the region [Pv] and the region [Pi] as well as the boundary thereof in the measurement sample.
    • 参考样品的表面被过渡金属污染,进行热处理以扩散样品中的过渡金属。 在整个热处理参考样品中测量由过渡金属形成的复合中心的浓度,参考样品中的区域[V],区域[Pv],区域[]和区域[I] 基于测量值定义。 同时,在整个热处理参考样品中测量与过渡金属相关的复合寿命。 基于这两个测量结果,产生了重组中心浓度和复合寿命的相关线。 测量样品的表面被过渡金属污染,进行热处理以扩散样品中的过渡金属。 在整个热处理测量样品中测量与过渡金属相关联的重组寿命,并且根据相关线检查所测量的值以推断测量中的区域[Pv]和区域[Pi]及其边界 样品。