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1. 发明申请

US20080016346A1 Use of Bilinear mappings in cryptographic applications 有权
标题翻译：在加密应用程序中使用双线性映射
公开(公告)号：US20080016346A1
公开(公告)日：2008-01-17
申请号：US11316412
申请日：2005-12-21
申请人： Keith Harrison , Liqun Chen , Guido Bertoni , Pasqualina Fragneto , Gerardo Pelosi
发明人： Keith Harrison , Liqun Chen , Guido Bertoni , Pasqualina Fragneto , Gerardo Pelosi
IPC分类号： H04L9/00
CPC分类号： H04L9/08 , H04L9/3073 , H04L9/321 , H04L2209/80 , H04W12/06
摘要： Cryptographic methods are known that involve the computation of a non-degenerate bilinear mapping of first and second elements one of which comprises a secret of a first entity. For a mapping implemented as, for example, a Tate pairing, the mapping is computable by applying a predetermined function to the first and second elements and then exponentiating the result with a known exponent. Improvements in respect of computational loading, size of output, and security are enabled for the first party by arranging for the first entity to carry out only part of the mapping, a second entity being used to complete computation of the mapping. Cryptographic applications using these improvements are also disclosed.
摘要翻译：已知密码学方法涉及计算第一和第二元素的非简并双线性映射，其中之一包括第一实体的秘密。对于实现为例如Tate配对的映射，可以通过将预定函数应用于第一和第二元素然后用已知指数对结果进行指数来计算该映射。通过安排第一实体仅执行部分映射，使第一方能够进行关于计算负载，输出大小和安全性的改进，第二实体用于完成映射的计算。还公开了使用这些改进的加密应用。

2. 发明申请

US20070244944A1 METHOD OF PROCESSING INFORMATION TO BE CONFIDENTIALLY TRANSMITTED 有权
标题翻译：处理信息的方法被保密传输
公开(公告)号：US20070244944A1
公开(公告)日：2007-10-18
申请号：US11548251
申请日：2006-10-10
申请人： Guido Bertoni , Pasqualina Fragneto , Gerardo Pelosi , Keith Harrison , Liqun Chen
发明人： Guido Bertoni , Pasqualina Fragneto , Gerardo Pelosi , Keith Harrison , Liqun Chen
IPC分类号： H04L9/32 , G06J1/00
CPC分类号： G06F7/725 , H04L9/3073 , H04L2209/08
摘要： A method of processing information to be confidentially transmitted from a first module to a second module provides that a first scalar multiplication may be carried out in order to obtain a first result [r]P). This first scalar multiplication comprises a plurality of generation steps of ordered factors from which a plurality of first partial sums are required to be built. The method also comprises the carrying out of a second scalar multiplication in order to obtain a second result. This second multiplication provides that a plurality of second partial sums may be built. A piece of encrypted information is obtained by processing the information based on the results of said scalar multiplications. The second partial sums of the second scalar multiplication use the same ordered factors obtained by the generation step of the first scalar multiplication.
摘要翻译：一种处理从第一模块到第二模块被保密地发送的信息的方法，提供可以执行第一标量乘法以获得第一结果P。该第一标量乘法包括有序因子的多个生成步骤，需要构建多个第一部分和。该方法还包括执行第二标量乘法以获得第二结果。该第二乘法规定可以构建多个第二部分和。通过基于所述标量乘法的结果处理该信息来获得加密信息。第二标量乘法的第二部分和使用通过第一标量乘法的生成步骤获得的相同有序因子。

3. 发明申请

US20070180241A1 Authentication method 有权
标题翻译：认证方式
公开(公告)号：US20070180241A1
公开(公告)日：2007-08-02
申请号：US11315633
申请日：2005-12-22
申请人： Liqun Chen , Keith Harrison , Guido Bertoni , Pasqualina Fragneto , Gerardo Pelosi
发明人： Liqun Chen , Keith Harrison , Guido Bertoni , Pasqualina Fragneto , Gerardo Pelosi
IPC分类号： H04L9/30 , H04L9/00 , H04K1/00
CPC分类号： H04L9/08 , H04L9/3073 , H04L9/321 , H04L2209/80 , H04W12/06
摘要： An authentication method of a first module by a second module includes the steps of generating a first random datum by the second module to be sent to the first module, generating a first number by the first module starting from the first datum and by way of a private key, and generating a second number by the second module to be compared with the first number, so as to authenticate the first module. The step of generating the second number is performed starting from public parameters and is independent of the step of generating the first number.
摘要翻译：通过第二模块的第一模块的认证方法包括以下步骤：由第二模块生成要发送到第一模块的第一随机数据，由第一模块从第一数据开始生成第一数字，并通过私钥，并且由第二模块生成与第一号码进行比较的第二号码，以便认证第一模块。从公共参数开始执行产生第二数量的步骤，并且独立于生成第一个数字的步骤。

4. 发明申请

US20050125670A1 Method for establishing a communication between two devices 有权
标题翻译：用于建立两个设备之间的通信的方法
公开(公告)号：US20050125670A1
公开(公告)日：2005-06-09
申请号：US10990319
申请日：2004-11-16
申请人： Fabio Sozzani , Roberto Sannino , Guido Bertoni , Gerardo Pelosi , Pasqualina Fragneto
发明人： Fabio Sozzani , Roberto Sannino , Guido Bertoni , Gerardo Pelosi , Pasqualina Fragneto
IPC分类号： H04L9/08 , H04L9/30 , H04L29/06 , H04L9/00
CPC分类号： H04L63/0442 , H04L9/0822 , H04L9/083 , H04L9/3073 , H04L63/062 , H04L63/0853 , H04L2209/80
摘要： A method establishes a communication between a first electronic device associated with a first trusted authority and a second electronic device. The method includes: making a first key available to the first device for the communication between the first authority and the first device. A second trusted authority, associated with the second device and distinct and autonomous with respect to the first authority, generates a second key in order to communicate with the second device. Furthermore, the method includes: making the second key available to the second device; and providing the first and second devices with a communication key, to be used communication between the first and second devices, through at least one of the first and second authorities.
摘要翻译：一种方法建立与第一可信管理机构相关联的第一电子设备与第二电子设备之间的通信。该方法包括：使第一密钥可用于第一设备以用于第一授权机构和第一设备之间的通信。与第二设备相关联并且相对于第一权限不同且自主的第二可信授权机构产生第二密钥以便与第二设备通信。此外，该方法包括：使第二密钥可用于第二设备; 以及通过所述第一和第二权限中的至少一个，为所述第一和第二设备提供通信密钥以供在所述第一和第二设备之间进行通信。

5. 发明申请

US20070260664A1 Computation of a multiplication operation with an electronic circuit and method 有权
标题翻译：用电子电路和方法计算乘法运算
公开(公告)号：US20070260664A1
公开(公告)日：2007-11-08
申请号：US11786767
申请日：2007-04-11
申请人： Guido Bertoni , Pasqualina Fragneto , Andrew Marsh , Gerardo Pelosi , Moris Ravasio
发明人： Guido Bertoni , Pasqualina Fragneto , Andrew Marsh , Gerardo Pelosi , Moris Ravasio
IPC分类号： G06F7/38
CPC分类号： G06F7/728 , G06F7/722
摘要： A computing method and circuit for computing a modular operation with at least one operand having a binary representation. Iteratively for each bit of this operand, doubling the value of an intermediate result stored in a first memory element by shifting the bits of the intermediate result towards the most significant bit and, while the most significant bit of the intermediate result is one, updating this intermediate result by subtracting a modulus stored in a second memory element.
摘要翻译：一种用于利用具有二进制表示的至少一个操作数来计算模块化操作的计算方法和电路。迭代地对于该操作数的每个位，通过将中间结果的位移向最高有效位来将存储在第一存储元件中的中间结果的值加倍，并且当中间结果的最高有效位为1时，更新该值通过减去存储在第二存储元件中的模数的中间结果。

6. 发明申请

US20050102507A1 Method for establishing an encrypted communication by means of keys 有权
标题翻译：通过密钥建立加密通信的方法
公开(公告)号：US20050102507A1
公开(公告)日：2005-05-12
申请号：US10952549
申请日：2004-09-28
申请人： Fabio Sozzani , Roberto Sannino , Guido Bertoni , Gerardo Pelosi , Pasqualina Fragneto
发明人： Fabio Sozzani , Roberto Sannino , Guido Bertoni , Gerardo Pelosi , Pasqualina Fragneto
IPC分类号： H04L9/08 , H04L29/06 , H04L9/00
CPC分类号： H04L63/0428 , H04L9/083 , H04L9/0847 , H04L63/0853 , H04L63/0869 , H04L2209/76 , H04L2209/80
摘要： A method of establishing an encrypted communication by means of keys between a first electronic device associated with a first trusted authority and a second electronic device, including generating a first secret key associated with the first device for the management of the communication, generating, at least in part by means of the first authority, a second secret key associated with the second device for the management of the communication. The method includes generating the first key at least in part by a second trusted authority associated with the second device that is distinct and autonomous from the first authority. Alternatively, the generation of the first key is performed, at least in part, by the second device passing through the second trusted authority.
摘要翻译：一种在与第一可信管理机构相关联的第一电子设备与第二电子设备之间通过密钥建立加密通信的方法，包括生成与第一设备相关联的用于通信管理的第一密钥，至少产生部分地通过第一权限，与用于管理通信的第二设备相关联的第二密钥。该方法包括至少部分地由与第二设备相关联的第二可信管理机构产生第一密钥，所述第二信任机构与第一授权机构不同且自主。或者，至少部分地由通过第二可信管理机构的第二设备执行第一密钥的生成。

7. 发明申请

US20050169464A1 Message deciphering method, system and article 有权
标题翻译：消息解密方法，系统和文章
公开(公告)号：US20050169464A1
公开(公告)日：2005-08-04
申请号：US11016691
申请日：2004-12-17
申请人： Roberto Sannino , Fabio Sozzani , Guido Bertoni , Gerardo Pelosi , Pasqualina Fragneto
发明人： Roberto Sannino , Fabio Sozzani , Guido Bertoni , Gerardo Pelosi , Pasqualina Fragneto
IPC分类号： H04L9/08 , H04L9/30 , H04K1/00
CPC分类号： H04L9/083 , H04L9/3073 , H04L9/3213
摘要： A method for decrypting the encrypted messages sent by a transmission device to a first electronic device associated with a first trusted authority and to a second electronic device (ME). In one embodiment, first and second tokens are generated and exchanged, respectively, by the first and second electronic devices, which then generate a joint decryption key in order to decrypt the encrypted message.
摘要翻译：一种用于将由传输设备发送的加密消息解密为与第一可信管理机构和第二电子设备（ME）相关联的第一电子设备的方法。在一个实施例中，分别由第一和第二电子设备生成和交换第一和第二令牌，然后生成联合解密密钥以便解密加密的消息。

8. 发明申请

US20080285745A1 Processor for Executing an Aes-Type Algorithm 有权
标题翻译：用于执行Aes类型算法的处理器
公开(公告)号：US20080285745A1
公开(公告)日：2008-11-20
申请号：US11547195
申请日：2004-03-29
申请人： Yannick Teglia , Fabrice Romain , Pierre-Yvan Liardet , Pasqualina Fragneto , Fabio Sozzani , Guido Bertoni
发明人： Yannick Teglia , Fabrice Romain , Pierre-Yvan Liardet , Pasqualina Fragneto , Fabio Sozzani , Guido Bertoni
IPC分类号： H04L9/06
CPC分类号： H04L9/0631 , H04L9/003 , H04L2209/046 , H04L2209/08 , H04L2209/122
摘要： A processor for executing a Rijndeal algorithm which applies a plurality of encryption rounds to a data block array in order to obtain an array of identical size, each round involving a key block array and a data block substitution table, wherein said processor comprises: a first input register (102) containing an input data block column; an output register (111) containing an output data block column or an intermediate block column; a second input register (101) containing a key block column or the intermediate data blocks; a block substitution element (104) receiving the data one block at a time following the selection (103) thereof in the first register and providing, for each block, a column of blocks; an element (109) applying a cyclic permutation to the substitution circuit column blocks; and an Exclusive-OR combination element (110) combining the permutation circuit column blocks with the content of the second register, the result of said combination being loaded into the output register.
摘要翻译：一种用于执行Rijndeal算法的处理器，该Rijndeal算法将多个加密回合应用于数据块阵列，以便获得相同大小的阵列，每轮涉及密钥块阵列和数据块替换表，其中所述处理器包括：第一输入寄存器（102），其包含输入数据块列; 包含输出数据块列或中间块列的输出寄存器（111）; 包含密钥块列或中间数据块的第二输入寄存器（101）; 块替换元件（104）在第一寄存器中的选择（103）之后的时间接收数据一个块，并为每个块提供一列块; 向替代电路列块施加循环置换的元件（109）; 以及将置换电路列块与第二寄存器的内容组合的异或组合元件（110），所述组合的结果被加载到输出寄存器中。

9. 发明授权

US07206410B2 Circuit for the inner or scalar product computation in Galois fields 有权
标题翻译：伽罗瓦域内部或标量积计算电路
公开(公告)号：US07206410B2
公开(公告)日：2007-04-17
申请号：US09974176
申请日：2001-10-10
申请人： Guido Bertoni , Luca Breveglieri , Pasqualina Fragneto
发明人： Guido Bertoni , Luca Breveglieri , Pasqualina Fragneto
IPC分类号： G06F7/00
CPC分类号： G06F7/724
摘要： A circuit for computing the inner of scalar product of two vectors in a finite Galois field defined by a generator polynomial, wherein each vector includes at least two elements belonging to said finite field, comprises one or more look-up tables storing digital words indicative of said possible combinations and said possible reductions. The digital words in question are defined as a function of the second elements of said vectors and the generator polynomial of the field. The input register(s) and the look-up table(s) are configured to co-operate in a plurality of subsequent steps to generate at each step a partial product result identified by at least one of digital word addressed in a corresponding look-up table as a function of the digital signals stored in the input register(s). The circuit also includes an accumulator unit for adding up the partial results generated at each step to give a final product result deriving from accumulation of said partial results.
摘要翻译：一种用于计算由生成多项式定义的有限伽罗瓦域中的两个向量的标量积的内部的电路，其中每个向量包括属于所述有限域的至少两个元素，包括一个或多个查找表，其存储指示说可能的组合和所述可能的减少。所讨论的数字词被定义为所述向量的第二元素和场的生成多项式的函数。输入寄存器和查找表被配置为在多个后续步骤中协作以在每个步骤处生成由相应查找表中寻址的数字字中的至少一个标识的部分乘积结果，作为存储在输入寄存器中的数字信号的函数。该电路还包括用于将在每个步骤产生的部分结果相加以产生从所述部分结果的积累得到的最终产品结果的累加器单元。

10. 再颁专利

USRE44594E1 Method and circuit for data encryption/decryption 有权
标题翻译：数据加密/解密的方法和电路
公开(公告)号：USRE44594E1
公开(公告)日：2013-11-12
申请号：US13456457
申请日：2012-05-29
申请人： Marco Macchetti , Stefano Marchesin , Umberto Bondi , Luca Breveglieri , Guido Bertoni , Pasqualina Fragneto
发明人： Marco Macchetti , Stefano Marchesin , Umberto Bondi , Luca Breveglieri , Guido Bertoni , Pasqualina Fragneto
IPC分类号： H04L9/00
CPC分类号： H04L9/0631 , H04L2209/12 , H04L2209/24
摘要： Data are converted between an unencrypted and an encrypted format according to the Rijndael algorithm, including a plurality of rounds. Each round is comprised of a fixed set of transformations applied to a two-dimensional array, designating states, of rows and columns of bit words. At least a part of the transformations are applied on a transposed version of the state, wherein rows and columns are transposed for the columns and rows, respectively.
摘要翻译：根据Rijndael算法，包括多个轮次，数据在未加密格式和加密格式之间进行转换。每一轮由应用于二维阵列的一组固定变换组成，指定位字的行和列的状态。至少一部分变换被应用在状态的转置版本上，其中行和列分别被转置用于列和行。

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