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    Key derivation by means of message authentication code for encrypting data transmission in energy distribution network
    4.
    发明公开
    Key derivation by means of message authentication code for encrypting data transmission in energy distribution network 审中-公开
    导出使用用于数据加密的消息认证码在配电网络中的关键

    公开(公告)号：EP2202911A1

    公开(公告)日：2010-06-30

    申请号：EP09178947.9

    申请日：2009-12-11

    Applicant: STMicroelectronics Srl

    Inventor： Bertoni, Guido Marco

    IPC: H04L9/08

    CPC classification number: H04L9/0625 ,  H04L9/0631 ,  H04L9/0866

    Abstract: A method (200) for transmitting a message between a first electronic device (C) and a second electronic device (MS i ) is described, comprising steps of:
    - implementing an encryption algorithm, generating (202), by the first electronic device (C), a first data encryption key (K i ) identifying the second electronic device (MS i ) on the basis of a main data encryption key (MK) and an identification code (ID i ) of the second electronic device (MS i );
    - implementing said encryption algorithm, generating (203), by the first electronic device (C) and the second electronic device (MS i ), a communication key (K di ) on the basis of said first data encryption key (K i ) and a reference datum (DT).

    Abstract translation: 一种用于发送消息的第一电子设备（C），并且所述的第二电子装置（MSⅰ）之间，包括以下步骤的方法（200）： - 实现一种加密算法，生成（202），通过所述第一电子设备（ 第二电子设备的C），第一数据加密密钥（K I）确定第二电子装置（MS i）主数据加密密钥的（MK）的基础上，对识别码（IDⅰ）（MSⅰ） ; - 实施所述加密算法，生成（203），由所述第一电子装置（C）和所述第一数据加密密钥的基础上的第二电子设备（MS i）中，通信密钥（K二）（K i）和 参考日期（DT）。

    Method and circuit for cryptographic operation
    6.
    发明公开
    Method and circuit for cryptographic operation 有权
    Verfahren und Schaltungfürkryptografische操作

    公开(公告)号：EP2523385A1

    公开(公告)日：2012-11-14

    申请号：EP11164951.3

    申请日：2011-05-05

    Applicant: PROTON WORLD INTERNATIONAL N.V. ,  STMicroelectronics Srl

    Inventor： Van Assche, Gilles ,  Daemen, Joan ,  Bertoni, Guido Marco

    IPC: H04L9/06

    CPC classification number: H04L9/002 ,  H04L9/004 ,  H04L9/06 ,  H04L2209/12

    Abstract: The invention concerns a method of performing a cryptographic operation comprising: receiving a plurality of binary input values (P 0 ...P N ); splitting said binary input values into a plurality of non-binary digits (P 0 '...P M ') of base r, where r is an integer greater than 2 and not equal to a power of 2; and performing, by a cryptographic block (306) on each of the plurality of non-binary digits, a different modulo r operation to generate at least one output digit (Z 0 '...Z M ') of base r.

    Abstract translation: 本发明涉及一种执行密码操作的方法，包括：接收多个二进制输入值（P 0 ... P N）; 将所述二进制输入值分解为基本r的多个非二进制数字（P 0'... P M'），其中r是大于2且不等于2的幂的整数; 并且通过在所述多个非二进制数字中的每一个上的密码块（306）执行不同的模r操作以生成基本r的至少一个输出数字（Z 0'... Z M'）。

    Encoding/decoding apparatus
    7.
    发明公开
    Encoding/decoding apparatus 审中-公开
    Kodier- und Dekodiervorrichtung

    公开(公告)号：EP2015505A2

    公开(公告)日：2009-01-14

    申请号：EP08012447.2

    申请日：2008-07-10

    Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics, Inc.

    Inventor： Bertoni, Guido Marco ,  Owen, Jefferson Eugene

    IPC: H04L9/06

    CPC classification number: H04L9/0637 ,  G09C1/00 ,  H04L2209/122 ,  H04L2209/125

    Abstract: 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.

    Abstract translation: 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，用于对数据进行可选择的操作 从所述输入数据获得的输出和与所述算术逻辑单元耦合的加密/解密数据的输出。

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