Ciphering by blocks of the content of a memory external to a processor
    11.
    发明授权
    Ciphering by blocks of the content of a memory external to a processor 有权
    通过处理器外部存储器的内容的块进行加密

    公开(公告)号:US07809141B2

    公开(公告)日:2010-10-05

    申请号:US11175978

    申请日:2005-07-06

    IPC分类号: H04L9/00

    摘要: A method and an element for ciphering with an integrated processor data to be stored in a memory, including applying to each data block to be ciphered a ciphering algorithm which is a function of at least one key specific to the integrated circuit, and before applying the ciphering algorithm thereto, combining the data block to be ciphered with the result of a function of the storage address of the ciphered block in the memory, and/or of combining the key with the result of a function of the storage address of the ciphered block in the memory and of a digital quantity different from the ciphering key.

    摘要翻译: 一种用于使用要存储在存储器中的集成处理器数据进行加密的方法和元件,包括应用到要加密的每个数据块,加密算法,其是集成电路特有的至少一个密钥的函数,并且在应用 将加密的数据块与存储器中的加密块的存储地址的功能的结果组合,和/或将密钥与加密块的存储地址的功能的结果组合 在存储器中和与加密密钥不同的数字量。

    Method for pairing electronic equipment in a wireless network system
    12.
    发明授权
    Method for pairing electronic equipment in a wireless network system 有权
    在无线网络系统中配对电子设备的方法

    公开(公告)号:US08406735B2

    公开(公告)日:2013-03-26

    申请号:US12145365

    申请日:2008-06-24

    CPC分类号: H04L9/0841 H04L2209/80

    摘要: A method pairs electronic equipment, particularly, in a wireless network system. The method includes: providing first and second wireless electronic equipment to be paired which store a first and a second public key, respectively, and providing a user with a wireless portable electronic device which stores a third public key. Then, the portable electronic device transmits the third public key in turn to the first and second electronic equipment, and receiving from the first and second equipment the first and second public keys, respectively. Moreover, the portable electronic device calculates first and second numbers starting from the first and second public keys, respectively. The same first and second numbers is independently calculated by the first and second electronic equipment, respectively, starting from the third public key and representing secret numbers shared between the portable device and the first and second electronic equipment. Finally, the portable device provides a secure communication key to be transmitted in turn to the first and second equipment through encryption with the first and second secret numbers, respectively.

    摘要翻译: 一种方法将电子设备,特别是在无线网络系统中配对。 该方法包括:提供分别存储第一和第二公钥的待配对的第一和第二无线电子设备,并向用户提供存储第三公钥的无线便携式电子设备。 然后,便携式电子设备依次向第一和第二电子设备发送第三公共密钥,并从第一和第二设备分别接收第一和第二公共密钥。 此外,便携式电子设备分别从第一和第二公钥开始计算第一和第二数字。 分别由第一和第二电子设备独立地计算相同的第一和第二数字,从第三公开密钥开始并且表示在便携式设备与第一和第二电子设备之间共享的密码。 最后,便携式设备提供一个安全通信密钥,通过分别通过第一和第二密码进行加密,依次传送给第一和第二设备。

    Encoding/decoding apparatus
    13.
    发明授权
    Encoding/decoding apparatus 有权
    编码/解码装置

    公开(公告)号:US08594322B2

    公开(公告)日:2013-11-26

    申请号:US11775749

    申请日:2007-07-10

    IPC分类号: H04L9/06 H04L9/28

    摘要: An encoding/decoding apparatus comprises a central processing unit and an encryption/decryption accelerator coupled to the central processing unit. The accelerator comprises an input for input data to be encrypted/decrypted, an arithmetic logic unit coupled to said input for performing selectable operations on data obtained from said input data and an output for encrypted/decrypted data coupled to said arithmetic logic unit.

    摘要翻译: 编码/解码装置包括中央处理单元和耦合到中央处理单元的加密/解密加速器。 加速器包括用于要加密/解密的输入数据的输入,耦合到所述输入的算术逻辑单元,用于对从所述输入数据获得的数据进行可选择操作,以及输出用于与所述算术逻辑单元耦合的加密/解密数据。

    MESSAGE TRANSMISSION METHOD, PREFERABLY FOR AN ENERGY DISTRIBUTION NETWORK
    14.
    发明申请
    MESSAGE TRANSMISSION METHOD, PREFERABLY FOR AN ENERGY DISTRIBUTION NETWORK 失效
    信息传输方法,优先于能源分配网络

    公开(公告)号:US20100158250A1

    公开(公告)日:2010-06-24

    申请号:US12578029

    申请日:2009-10-13

    IPC分类号: H04K1/00

    摘要: A process for transmitting a message between a first electronic device and a second electronic device of an energy distribution network is described. The process includes generating, by the first electronic device, a first data encryption key identifying the second electronic device on the basis of a main data encryption key and an identification code of the second electronic device. The process further includes generating, by the first electronic device and the second electronic device, a communication key on the basis of said first data encryption key and a reference datum.

    摘要翻译: 描述了在能量分配网络的第一电子设备和第二电子设备之间发送消息的过程。 该处理包括由第一电子设备基于第二电子设备的主数据加密密钥和识别码生成识别第二电子设备的第一数据加密密钥。 该处理还包括基于所述第一数据加密密钥和参考数据,由第一电子设备和第二电子设备生成通信密钥。

    METHOD FOR PAIRING ELECTRONIC EQUIPMENT IN A WIRELESS NETWORK SYSTEM
    15.
    发明申请
    METHOD FOR PAIRING ELECTRONIC EQUIPMENT IN A WIRELESS NETWORK SYSTEM 有权
    在无线网络系统中配对电子设备的方法

    公开(公告)号:US20090318114A1

    公开(公告)日:2009-12-24

    申请号:US12145365

    申请日:2008-06-24

    IPC分类号: H04M3/16 H04L9/30

    CPC分类号: H04L9/0841 H04L2209/80

    摘要: A method pairs electronic equipment, particularly, in a wireless network system. The method includes: providing first and second wireless electronic equipment to be paired which store a first and a second public key, respectively, and providing a user with a wireless portable electronic device which stores a third public key. Then, the portable electronic device transmits the third public key in turn to the first and second electronic equipment, and receiving from the first and second equipment the first and second public keys, respectively. Moreover, the portable electronic device calculates first and second numbers starting from the first and second public keys, respectively. The same first and second numbers is independently calculated by the first and second electronic equipment, respectively, starting from the third public key and representing secret numbers shared between the portable device and the first and second electronic equipment. Finally, the portable device provides a secure communication key to be transmitted in turn to the first and second equipment through encryption with the first and second secret numbers, respectively.

    摘要翻译: 一种方法将电子设备,特别是在无线网络系统中配对。 该方法包括:提供分别存储第一和第二公钥的待配对的第一和第二无线电子设备,并向用户提供存储第三公钥的无线便携式电子设备。 然后,便携式电子设备依次向第一和第二电子设备发送第三公共密钥,并从第一和第二设备分别接收第一和第二公共密钥。 此外,便携式电子设备分别从第一和第二公钥开始计算第一和第二数字。 分别由第一和第二电子设备独立地计算相同的第一和第二数字,从第三公开密钥开始并且表示在便携式设备与第一和第二电子设备之间共享的密码。 最后,便携式设备提供一个安全通信密钥,通过分别通过第一和第二密码进行加密,依次传送给第一和第二设备。

    Method for generating a digital signature
    16.
    发明授权
    Method for generating a digital signature 有权
    用于生成数字签名的方法

    公开(公告)号:US08817977B2

    公开(公告)日:2014-08-26

    申请号:US13235089

    申请日:2011-09-16

    IPC分类号: G06F21/00

    摘要: A method for generating a digital signature includes calculating a first magnitude representative of the inverse of a random number raised to the power two; obtaining a first element of the digital signature by executing scalar multiplication between an established point of the elliptic curve and the random number; obtaining a second magnitude by executing modular multiplication, with modulus corresponding to the established elliptic curve's order between the first magnitude and the secret encryption key; obtaining a third magnitude by executing a modular multiplication, with modulus corresponding to the established elliptic curve's order between the random number and the secret encryption key; obtaining a first addend of a second element of the digital signature by executing a modular multiplication, with modulus corresponding to the established elliptic curve's order between the second magnitude and the third magnitude; and generating a second element of the digital signature based on the first addend.

    摘要翻译: 一种用于产生数字签名的方法包括:计算代表提供给权力二的随机数的倒数的第一数值; 通过在椭圆曲线的建立点和随机数之间执行标量乘积来获得数字签名的第一元素; 通过执行模乘法获得第二幅度,其中模数对应于第一幅度和秘密加密密钥之间建立的椭圆曲线的顺序; 通过执行模乘法获得第三幅度,其中模数对应于随机数和秘密加密密钥之间建立的椭圆曲线的顺序; 通过执行模乘法来获得数字签名的第二元素的第一加数,其中模数对应于在第二幅度和第三幅度之间建立的椭圆曲线的顺序; 以及基于所述第一加数来生成所述数字签名的第二元素。

    METHOD FOR GENERTAING A DIGITAL SIGNATURE
    17.
    发明申请
    METHOD FOR GENERTAING A DIGITAL SIGNATURE 有权
    用于生成数字签名的方法

    公开(公告)号:US20120069994A1

    公开(公告)日:2012-03-22

    申请号:US13235089

    申请日:2011-09-16

    IPC分类号: H04L9/28

    摘要: A method for generating a digital signature includes calculating a first magnitude representative of the inverse of a random number raised to the power two; obtaining a first element of the digital signature by executing scalar multiplication between an established point of the elliptic curve and the random number; obtaining a second magnitude by executing modular multiplication, with modulus corresponding to the established elliptic curve's order between the first magnitude and the secret encryption key; obtaining a third magnitude by executing a modular multiplication, with modulus corresponding to the established elliptic curve's order between the random number and the secret encryption key; obtaining a first addend of a second element of the digital signature by executing a modular multiplication, with modulus corresponding to the established elliptic curve's order between the second magnitude and the third magnitude; and generating a second element of the digital signature based on the first addend.

    摘要翻译: 一种用于产生数字签名的方法包括:计算代表提供给权力二的随机数的倒数的第一数值; 通过在椭圆曲线的建立点和随机数之间执行标量乘积来获得数字签名的第一元素; 通过执行模乘法获得第二幅度,其中模数对应于第一幅度和秘密加密密钥之间建立的椭圆曲线的顺序; 通过执行模乘法获得第三幅度,其中模数对应于随机数和秘密加密密钥之间建立的椭圆曲线的顺序; 通过执行模乘法来获得数字签名的第二元素的第一加数,其中模数对应于在第二幅度和第三幅度之间建立的椭圆曲线的顺序; 以及基于所述第一加数来生成所述数字签名的第二元素。

    ENCODING/DECODING APPARATUS
    18.
    发明申请
    ENCODING/DECODING APPARATUS 有权
    编码/解码设备

    公开(公告)号:US20090016525A1

    公开(公告)日:2009-01-15

    申请号:US11775749

    申请日:2007-07-10

    IPC分类号: H04L9/28 H04N7/167

    摘要: An encoding/decoding apparatus comprises a central processing unit and an encryption/decryption accelerator coupled to the central processing unit. The accelerator comprises an input for input data to be encrypted/decrypted, an arithmetic logic unit coupled to said input for performing selectable operations on data obtained from said input data and an output for encrypted/decrypted data coupled to said arithmetic logic unit.

    摘要翻译: 编码/解码装置包括中央处理单元和耦合到中央处理单元的加密/解密加速器。 加速器包括用于要加密/解密的输入数据的输入,耦合到所述输入的算术逻辑单元,用于对从所述输入数据获得的数据进行可选择操作,以及输出用于与所述算术逻辑单元耦合的加密/解密数据。

    Message transmission method, preferably for an energy distribution network
    19.
    发明授权
    Message transmission method, preferably for an energy distribution network 失效
    消息传输方法,优选用于能量分配网络

    公开(公告)号:US08331565B2

    公开(公告)日:2012-12-11

    申请号:US12578029

    申请日:2009-10-13

    IPC分类号: H04K1/00

    摘要: A process for transmitting a message between a first electronic device and a second electronic device of an energy distribution network is described. The process includes generating, by the first electronic device, a first data encryption key identifying the second electronic device on the basis of a main data encryption key and an identification code of the second electronic device. The process further includes generating, by the first electronic device and the second electronic device, a communication key on the basis of said first data encryption key and a reference datum.

    摘要翻译: 描述了在能量分配网络的第一电子设备和第二电子设备之间发送消息的过程。 该处理包括由第一电子设备基于第二电子设备的主数据加密密钥和识别码生成识别第二电子设备的第一数据加密密钥。 该处理还包括基于所述第一数据加密密钥和参考数据,由第一电子设备和第二电子设备生成通信密钥。