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    • 8. 发明授权
    • Method and system for the accelerated decryption of cryptographically protected user data units
    • 加密解密密码保护用户数据单元的方法和系统
    • US09571273B2
    • 2017-02-14
    • US13508707
    • 2010-10-12
    • Michael BraunMarkus DichtlBernd Meyer
    • Michael BraunMarkus DichtlBernd Meyer
    • H04L29/06H04L9/08
    • H04L9/0825
    • A method and system for accelerated decryption of a cryptographically protected user data unit, wherein a transmitter initially generates a cryptographic key that is provided with a related key identification. The transmitter then performs asymmetrical encryption of the generated cryptographic key using a public cryptographic key and encryption of at least one user data unit using the generated cryptographic key. The encrypted user data unit, the asymmetrically encrypted cryptographic key and the related key identification of the cryptographic key are transported to a receiver that decrypts the received asymmetrically encrypted key using a private key, if verification of the received related key identification of the cryptographic key indicates the cryptographic key is not present in a decrypted state in the receiver. The receiver then decrypts the received cryptographically encrypted user data unit using the cryptographic key in the receiver or with the cryptographic key decrypted using the private key.
    • 一种用于加密解密密码保护的用户数据单元的方法和系统,其中发射机最初生成具有相关密钥标识的加密密钥。 然后,发射机使用公共加密密钥对所生成的加密密钥进行不对称加密,并使用生成的加密密钥对至少一个用户数据单元进行加密。 如果加密密钥的加密用户数据单元,非对称加密的加密密钥和密钥的相关密钥标识被传送到使用专用密钥对接收到的非对称加密密钥进行解密的接收机, 加密密钥在接收机中不存在于解密状态。 然后,接收机使用接收机中的加密密钥或使用私钥解密的加密密钥来解密所接收的密码加密的用户数据单元。
    • 9. 发明授权
    • Method and processor unit for implementing a characteristic-2-multiplication
    • 用于实现特征2乘法的方法和处理器单元
    • US08732227B2
    • 2014-05-20
    • US13055218
    • 2009-05-22
    • Jean GeorgiadesBernd Meyer
    • Jean GeorgiadesBernd Meyer
    • G06F7/52
    • G06F7/724G06F2207/3812
    • The method for implementing a characteristic-2-multiplication of at least two input bit strings each having a number N of bits by means of a processor unit suitable for carrying out an integer multiplication, having the following steps: a) generating at least one sequence of a number K of zero bits, using Kε{1, . . . , N}, by means of a first transformation of the respective input bit string to at least one predetermined position in the respective input bit string for generating at least one first intermediate bit string; b) linking the at least two first intermediate bit strings by means of the integer multiplication of the processor unit for generating at least one second intermediate bit string; and c) transforming the at least one second intermediate bit string by means of a second transformation for generating a result bit string.
    • 用于通过适于执行整数乘法的处理器单元来实现每个具有数目N个比特的至少两个输入比特串的特征2乘法的方法,具有以下步骤:a)产生至少一个序列 的零位K,使用K&egr; {1,。 。 。 ,N},通过相应输入位串的第一变换到相应输入位串中的至少一个预定位置,用于产生至少一个第一中间位串; b)借助于处理器单元的整数乘法来链接至少两个第一中间位串,用于产生至少一个第二中间位串; 以及c)通过用于生成结果位串的第二变换来变换所述至少一个第二中间位串。