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    Secret key transfer method which is highly secure and can restrict the damage caused when the secret key is leaked or decoded
    2.
    发明公开
    Secret key transfer method which is highly secure and can restrict the damage caused when the secret key is leaked or decoded 失效
    用于与损伤变得已知的限制私人密钥传送或解码秘密密钥的高安全的方法

    公开(公告)号：EP0840477A2

    公开(公告)日：1998-05-06

    申请号：EP97308520.2

    申请日：1997-10-24

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  KABUSHIKI KAISHA TOSHIBA

    发明人： Tatebayashi, Makoto ,  Ohmori, Motoji ,  Kato, Takehisa ,  Endoh, Naoki ,  Hirayama, Koichi

    IPC分类号： H04L9/08

    CPC分类号： H04N21/63345 ,  H04L9/0838 ,  H04L9/0891 ,  H04N7/1675

    摘要： A transmission apparatus 100 includes a secret key storage unit 103 that stores three secret keys K1, K2 and K3, a secret key selection unit 104 that selects one secret key Ks from the secret keys, a message generation unit 106 for generating a message M used as a carrier for indicating a secret key, an encryption module 105 for generating a cryptogram Ca by encrypting the generated message M using the secret key Ks, an encryption module 107 for generating a cryptogram Cm by encrypting the message M using the message M itself as the secret key, and two transmission units 111 and 112 for transmitting the cryptograms Ca and Cm to the reception apparatus 200 to indicate the selected secret key Ks. The reception apparatus 200 includes a decryption module, such as 221, for generating decrypted data Mi by decrypting the cryptogram Ca using a secret key Ki out of the three secret keys, and a decryption module, such as 222, for generating decrypted data Mii by decrypting the cryptogram Cm using the decrypted data Mi, and authorizes that the secret key Ki has been selected when the decrypted data Mi matches the decrypted data Mii.

    摘要翻译： 的发送装置100包括：秘密键存储部103确实存储三个秘密键K1，K2和K3中，秘密键选择部104没有从秘密密钥，消息生成单元106，用于产生M个所使用的信息中选择一个秘密密钥Ks 作为用于指示秘密密钥加密模块105，用于通过加密使用秘密密钥Ks的产生消息M产生密文的Ca，加密模块107，用于通过使用所述消息M本身作为加密消息M产生密码文字Cm的载体 。秘密密钥和两个传输单元111和112，用于发送的密码文字Ca与Cm的接收装置200，以指示所选择的秘密密钥Ks的接收装置200包括解密模块，颜色：如221，用于通过生成解密的数据麋 通过解密密码文字Cm全光照如222，用于生成解密的数据的Mii：解密使用秘密密钥Ki出三个秘密密钥的密码电文Ca和解密模块，色彩 克解密的数据宓，并授权做了秘密密钥Ki已被选中当解密数据弥解密数据的Mii匹配。

    One-way data conversion apparatus and device
    3.
    发明公开
    One-way data conversion apparatus and device 失效
    装置和设备的单向数据变换

    公开(公告)号：EP0840480A3

    公开(公告)日：2000-10-25

    申请号：EP97308783.6

    申请日：1997-10-31

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  KABUSHIKI KAISHA TOSHIBA

    发明人： Tatebayashi, Makoto ,  Matsuzaki, Natsume ,  Hirayama, Koichi

    IPC分类号： H04L9/32

    CPC分类号： H04L9/3271 ,  H04L9/0625 ,  H04L2209/043 ,  H04L2209/12 ,  H04L2209/60

    摘要： The verifier apparatus 50 includes a random number generation unit 51 that generates a 2n-bit random number, a separator unit 52 that separates the random number into two sets of n-bit data, a data conversion module 53 that converts one set of separated data using the other set of separated data as a key, and a comparator unit 54 that judges whether the converted result matches claimant data sent back from the claimant apparatus 60. The claimant apparatus 60 includes a separator unit 61 and a data conversion module 62 that have the same functions as the separator unit 52 and the data conversion module 53 in the verifier apparatus 50. The claimant apparatus 60 generates n-bit claimant data from the 2n-bit random number generated by the verifier apparatus 50, and sends the generated claimant data to the verifier apparatus 50.

    Encrypted communication system that limits the damage caused when a secret key has been leaked
    5.
    发明公开
    Encrypted communication system that limits the damage caused when a secret key has been leaked 失效
    对于具有有限的损害加密通信的设备知悉的秘密密钥的

    公开(公告)号：EP0840476A2

    公开(公告)日：1998-05-06

    申请号：EP97307629.2

    申请日：1997-09-29

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  KABUSHIKI KAISHA TOSHIBA

    发明人： Tatebayashi, Makoto ,  Fukushima, Yoshihisa ,  Kato, Takehisa ,  Endoh, Naoki ,  Hirayama, Koichi

    IPC分类号： H04L9/08

    CPC分类号： H04L9/0833 ,  H04L9/0822

    摘要： In an encrypted transmission system composed of one transmission apparatus 10 and twenty-eight reception apparatuses A1-G4 that are classified into seven groups A-G, two secret keys exclusively selected out of a total of fourteen secret keys are distributed beforehand to each group. The transmission apparatus 10 encrypts the same message M using one of the two secret keys distributed to each group and sends each group a message M encrypted with one of the group's secret keys. The reception apparatuses each decrypt the received cryptogram separately using each of the secret keys of group to which each reproduction apparatus belongs, judge whether either of the two decryption results conforms to a predetermined rule, and specify the correct decryption result.

    摘要翻译： 在一个传送装置10和28接收构成的加密传输系统装置A1〜G4那样被分为七组A-G，排他地选择在总共14个的秘密密钥的两个秘密密钥被预先分配给每个组。 发送装置10加密使用分布式各组的两个秘密密钥中的一个相同的消息M和每个组发送一个消息M与该组的秘密密钥中的一个进行加密。 所述接收装置的每个解密接收到的密文单独使用每个给每个再现设备所属，两个解密结果判断是否要么符合预定规则组的秘密密钥，并指定正确的解密结果。

    Secret key transfer method which is highly secure and can restrict the damage caused when the secret key is leaked or decoded
    9.
    发明公开
    Secret key transfer method which is highly secure and can restrict the damage caused when the secret key is leaked or decoded 失效
    用于与损伤变得已知的限制私人密钥传送或解码秘密密钥的高安全的方法

    公开(公告)号：EP0840477A3

    公开(公告)日：2000-09-20

    申请号：EP97308520.2

    申请日：1997-10-24

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  KABUSHIKI KAISHA TOSHIBA

    发明人： Tatebayashi, Makoto ,  Ohmori, Motoji ,  Kato, Takehisa ,  Endoh, Naoki ,  Hirayama, Koichi

    IPC分类号： H04L9/08 ,  H04N7/167 ,  H04L9/32

    CPC分类号： H04N21/63345 ,  H04L9/0838 ,  H04L9/0891 ,  H04N7/1675

    摘要： A transmission apparatus 100 includes a secret key storage unit 103 that stores three secret keys K1, K2 and K3, a secret key selection unit 104 that selects one secret key Ks from the secret keys, a message generation unit 106 for generating a message M used as a carrier for indicating a secret key, an encryption module 105 for generating a cryptogram Ca by encrypting the generated message M using the secret key Ks, an encryption module 107 for generating a cryptogram Cm by encrypting the message M using the message M itself as the secret key, and two transmission units 111 and 112 for transmitting the cryptograms Ca and Cm to the reception apparatus 200 to indicate the selected secret key Ks. The reception apparatus 200 includes a decryption module, such as 221, for generating decrypted data Mi by decrypting the cryptogram Ca using a secret key Ki out of the three secret keys, and a decryption module, such as 222, for generating decrypted data Mii by decrypting the cryptogram Cm using the decrypted data Mi, and authorizes that the secret key Ki has been selected when the decrypted data Mi matches the decrypted data Mii.

    One-way data conversion apparatus and device
    10.
    发明公开
    One-way data conversion apparatus and device 失效
    Gerätund Vorrichtung zur Einweg-Datenumwandlung

    公开(公告)号：EP0840480A2

    公开(公告)日：1998-05-06

    申请号：EP97308783.6

    申请日：1997-10-31

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  KABUSHIKI KAISHA TOSHIBA

    发明人： Tatebayashi, Makoto ,  Matsuzaki, Natsume ,  Hirayama, Koichi

    IPC分类号： H04L9/32

    CPC分类号： H04L9/3271 ,  H04L9/0625 ,  H04L2209/043 ,  H04L2209/12 ,  H04L2209/60

    摘要： The verifier apparatus 50 includes a random number generation unit 51 that generates a 2n-bit random number, a separator unit 52 that separates the random number into two sets of n-bit data, a data conversion module 53 that converts one set of separated data using the other set of separated data as a key, and a comparator unit 54 that judges whether the converted result matches claimant data sent back from the claimant apparatus 60. The claimant apparatus 60 includes a separator unit 61 and a data conversion module 62 that have the same functions as the separator unit 52 and the data conversion module 53 in the verifier apparatus 50. The claimant apparatus 60 generates n-bit claimant data from the 2n-bit random number generated by the verifier apparatus 50, and sends the generated claimant data to the verifier apparatus 50.

    摘要翻译： 验证装置50包括生成2n位随机数的随机数生成单元51，将随机数分成两组n位数据的分离单元52，将一组分离数据进行转换的数据转换模块53 使用另一组分离数据作为键，以及比较器单元54，其判断转换的结果是否与从索赔设备60发回的索赔数据相匹配。索赔人设备60包括分离单元61和数据转换模块62， 与验证器装置50中的分离器单元52和数据转换模块53相同的功能。索赔者装置60根据由验证器装置50产生的2n位随机数生成n位请求者数据，并发送所生成的请求者数据 到验证器装置50。