Process for generating DSA signatures with low-cost portable apparatuses
    1.
    发明授权
    Process for generating DSA signatures with low-cost portable apparatuses 失效
    使用低成本便携式设备生成DSA签名的过程

    公开(公告)号:US5625695A

    公开(公告)日:1997-04-29

    申请号:US347570

    申请日:1994-11-30

    IPC分类号: G07F7/10 H04L9/32

    摘要: The invention relates to a process for generating digital signatures from portable apparatuses (A1, A2, . . . Ai . . . An) of the microprocessor-based card type, including means for computation, communication and retention of data, which means comprise at least one electrically programmable non-volatile memory, consisting in preparing enciphered data constituting coupons and loading these coupons into the non-volatile memories so as later to use these coupons in order to sign a message sent by a verifier device. According to the process, the preparation of the coupons is carried out by a certified central authority B or by the card itself.

    摘要翻译: 本发明涉及一种用于从基于微处理器的卡类型的便携式设备(A1,A2,...,...)产生数字签名的过程,包括用于计算,通信和保留数据的装置,其包括 至少一个电可编程非易失性存储器,包括准备构成优惠券的加密数据并将这些优惠券加载到非易失性存储器中,以便稍后使用这些优惠券以签署由验证器设备发送的消息。 根据该过程,券的准备由认证的中央机关B或卡本身进行。

    Verification process for a communication system
    2.
    发明授权
    Verification process for a communication system 失效
    通信系统的验证过程

    公开(公告)号:US5347581A

    公开(公告)日:1994-09-13

    申请号:US122716

    申请日:1993-09-15

    CPC分类号: H04L9/3252 H04L2209/56

    摘要: The process concerns a system, comprising communication devices A1, A2, . . . A.alpha. connected to a central verification device B by the means of communication interfaces wherein each device Ai, having data processing means, communication means, memory means and random or pseudo-random generation means, transmits to the device B, having data processing means, communication means and memory means, a set of DSS digital signatures. Once all the signatures has been received by device B, device B verifies them simultaneously by performing few calculations for verifying a great same number of signatures sequentially.

    摘要翻译: 该过程涉及包括通信设备A1,A2,...的系统。 。 。 通过通信接口连接到中央验证装置B的α,其中具有数据处理装置,通信装置,存储装置和随机或伪随机生成装置的每个装置A 1向具有数据处理装置的装置B发送, 通信装置和存储装置,一组DSS数字签名。 一旦设备B接收到所有签名,设备B通过进行少量计算来同时验证它们,以便依次验证相同数量的签名。

    Public key cryptography method
    3.
    发明授权
    Public key cryptography method 失效
    公钥加密方法

    公开(公告)号:US06459791B1

    公开(公告)日:2002-10-01

    申请号:US09194980

    申请日:1999-08-24

    IPC分类号: H04L930

    摘要: The invention features a public key cryptography method based on the discrete logarithm which computes a value Gkmod p. Two solutions are proposed to reduce the number of multiplications, one consisting in generating “hollow” k exponents with a few bits of value 1, but of sufficient length to maintain the total security of the system, and the other consisting of performing calculations of the powers of g in parallel while combining the exponents with each other in order to prevent repeating the same power computations twice for a given exponent. The invention is useful for generating digital signatures, authentication and encryption.

    摘要翻译: 本发明的特征在于基于离散对数的公钥加密方法,其计算值Gkmod p。 提出了两种解决方案来减少乘法次数,一种是产生具有值1的几位的“空心”k个指数,但是具有足够的长度来维持系统的总体安全性,另一个包括执行 为了防止给定指数重复相同的功率计算两次,g并行地并联指数的幂。 本发明对于生成数字签名,认证和加密是有用的。

    System for improving the digital signature algorithm
    4.
    发明授权
    System for improving the digital signature algorithm 失效
    改进数字签名算法的系统

    公开(公告)号:US5414772A

    公开(公告)日:1995-05-09

    申请号:US82228

    申请日:1993-06-23

    IPC分类号: H04L9/32 H04K1/00

    CPC分类号: H04L9/3252

    摘要: A system comprises at least, two parts, connected to each other by the means of a common communication interface wherein a first communicating apparatus A, having data processing means, communication means, memory means and random or pseudo-random generation means relies of the computational power of a second communicating apparatus B having data processing means, communication means and memory means in order to compute the inverse of a first number x modulo a second number n and use the resulting modular inverse in an encryption, decryption, key exchange, identification or digital signature cryptographic protocol.

    摘要翻译: 系统包括至少两部分,其通过公共通信接口彼此连接,其中具有数据处理装置,通信装置,存储装置和随机或伪随机生成装置的第一通信装置A依赖于计算 具有数据处理装置,通信装置和存储装置的第二通信装置B的功率,以便计算第一数量x的模数第二数量n的逆,并且在加密,解密,密钥交换,识别或 数字签名加密协议。

    Method for implementing a private-key communication protocol between two processing devices
    5.
    发明授权
    Method for implementing a private-key communication protocol between two processing devices 失效
    用于在两个处理设备之间实现私钥通信协议的方法

    公开(公告)号:US06226382B1

    公开(公告)日:2001-05-01

    申请号:US08875331

    申请日:1997-09-24

    IPC分类号: H04K100

    摘要: A method for implementing private key protocols between two processing devices of which at least one is a portable storage medium. The devices are fitted with a digital processing circuit for performing modular calculation operations with a view to executing operations such as modular multiplication, the processing circuit is used to implement a private key encryption function consisting of a series of reversible operations comprising at least a combination of two operations, i.e. a modular calculation operation and a binary logic operation, and said function is applied either for encrypting or signing messages to be transmitted, or for decrypting received messages.

    摘要翻译: 一种用于在其至少一个是便携式存储介质的两个处理设备之间实现私钥协议的方法。 这些装置配备有用于执行模数运算的数字处理电路,以执行诸如模乘的操作,该处理电路用于实现由一系列可逆操作组成的私钥加密功能,该可逆操作至少包括 两个操作,即模块化计算操作和二进制逻辑操作,并且所述功能被应用于要发送的消息的加密或签名,或者用于解密所接收的消息。

    Method of cryptography with public key based on the discrete logarithm
    6.
    发明授权
    Method of cryptography with public key based on the discrete logarithm 失效
    基于离散对数的公钥加密方法

    公开(公告)号:US5946397A

    公开(公告)日:1999-08-31

    申请号:US860832

    申请日:1997-09-24

    IPC分类号: G09C1/00 H04L9/32 H04L9/00

    CPC分类号: H04L9/3013 H04L9/3247

    摘要: Method of public key cryptography based on the discrete logarithm that makes use of the computation of the variable r=g.sup.k modp where p is a prime number called a modulus, the exponent k is a random number usually with a length of N bits and g is an integer called a base, wherein an entity E carries out operations of authentication and/or of signature, including exchanges of signals with another entity in which this variable comes into play.

    摘要翻译: PCT No.PCT / FR96 / 01546 Sec。 371日期:1997年9月24日 102(e)1997年9月24日PCT PCT 1996年10月3日PCT公布。 公开号WO97 / 13342 日期1997年04月10日基于使用变量r = gk modp的计算的离散对数的公钥密码学方法,其中p是称为模数的质数,指数k是通常具有长度为 N位,g是称为基数的整数,其中实体E执行认证和/或签名的操作,包括与该变量发挥作用的另一实体的信号交换。

    Access control to data processing means
    7.
    发明授权
    Access control to data processing means 有权
    对数据处理手段的访问控制

    公开(公告)号:US08583934B2

    公开(公告)日:2013-11-12

    申请号:US10311698

    申请日:2001-06-20

    IPC分类号: G06F21/00 G06F7/04

    摘要: A method for preventing secret code manipulation in a data processing device, such as a smart card, to which a presented code is applied. Prior to implementation of a code transforming function in the processing device, the secret code is transformed into a transformed secret code in the card. For each use of the card, the presented code is transformed into a transformed presented code in accordance with the implemented transformation function. A comparison of the transformed secret code with the transformed secret code in the card is then performed.

    摘要翻译: 一种用于防止在应用所呈现的代码的诸如智能卡的数据处理设备中的密码操作的方法。 在处理装置中执行代码变换功能之前,秘密码被转换成卡中的变换密码。 对于卡的每次使用,所呈现的代码根据实现的转换函数被转换成转换的呈现代码。 然后执行转换的密码与卡中的转换密码的比较。

    METHOD OF BIOMETRIC AUTHENTICATION, CORRESPONDING AUTHENTICATION SYSTEM AND PROGRAM
    8.
    发明申请
    METHOD OF BIOMETRIC AUTHENTICATION, CORRESPONDING AUTHENTICATION SYSTEM AND PROGRAM 有权
    生物识别方法,相应的认证系统和程序

    公开(公告)号:US20130040606A1

    公开(公告)日:2013-02-14

    申请号:US13579775

    申请日:2011-02-17

    申请人: David Naccache

    发明人: David Naccache

    IPC分类号: H04W12/06

    摘要: A method and apparatus are provided for biometric authentication of a user to be authenticated, from among a plurality of users, with an authentication system storing a set of pieces of reference biometric data, each associated with one of the users. The method includes providing, by the user to be authenticated, a piece of biometric authentication data by a device for obtaining biometric data from a transactional terminal. A subset of the set of pieces of reference biometric data stored by the authentication system is searched for a piece of reference biometric data corresponding to the user to be authenticated as a function of the piece of biometric authentication data. The step of searching includes filtering the pieces of reference biometric data as a function of: a base station of a mobile communications network; and a set of mobile devices for which a connection indicator is activated for the base station. The transactional terminal is substantially near a zone of coverage of the base station.

    摘要翻译: 提供一种方法和装置,用于从多个用户中进行认证的用户的生物体认证与存储一组参考生物测定数据的认证系统,每一个与一个用户相关联。 该方法包括由用户通过用于从交易终端获取生物特征数据的设备提供一条生物特征认证数据。 搜索由认证系统存储的一组参考生物特征数据的子集,作为与生物认证数据片段相关的待认证的用户对应的参考生物测定数据。 搜索步骤包括:将参考生物测定数据作为以下功能进行过滤:移动通信网络的基站; 以及为基站激活连接指示符的一组移动设备。 事务终端基本上靠近基站的覆盖区域。

    METHOD FOR ASSISTING IN THE CHECKING OF TRANSACTION RECORDS, TRANSACTION DEVICE, SERVER, MOBILE TERMINAL, AND CORRESPONDING COMPUTER PROGRAMS
    9.
    发明申请
    METHOD FOR ASSISTING IN THE CHECKING OF TRANSACTION RECORDS, TRANSACTION DEVICE, SERVER, MOBILE TERMINAL, AND CORRESPONDING COMPUTER PROGRAMS 有权
    协助检查交易记录,交易设备,服务器,移动终端和相应计算机程序的方法

    公开(公告)号:US20100185535A1

    公开(公告)日:2010-07-22

    申请号:US12643325

    申请日:2009-12-21

    申请人: David Naccache

    发明人: David Naccache

    IPC分类号: G06Q40/00 G06Q10/00 H04B7/00

    摘要: A method and apparatus are provided for assisting in checking accuracy of bank transaction records edited in a bank statement and performed by at least one transaction device. The method includes, for at least one of the transactions: emission, by the transaction device, of at least one first signal including a message relating to the transaction; receipt, by at least one mobile terminal, of the at least one first signal; transmission, by the mobile terminal, of a second signal including at least the message, to at least one banking organization; association, by a server of the banking organization in charge of the transaction, of the message with at least one datum relating to the transaction, and marking of the transaction as a pre-checked transaction.

    摘要翻译: 提供了一种方法和装置,用于帮助检查在银行对帐单中编辑并由至少一个交易装置执行的银行交易记录的准确性。 该方法包括对于交易设备中的至少一个交易:发射包括与交易相关的消息的至少一个第一信号; 由所述至少一个移动终端接收所述至少一个第一信号; 由移动终端向至少一个银行组织传送包括至少该消息的第二信号; 由负责交易的银行组织的服务器关联具有与交易相关的至少一个数据的消息,以及将交易标记为预先检查的交易。

    METHOD OF PRINTING RECEIPTS
    10.
    发明申请
    METHOD OF PRINTING RECEIPTS 有权
    打印收据的方法

    公开(公告)号:US20100044425A1

    公开(公告)日:2010-02-25

    申请号:US12446422

    申请日:2007-10-17

    申请人: David Naccache

    发明人: David Naccache

    IPC分类号: G07G1/00

    CPC分类号: G07G5/00 G07F17/42

    摘要: An electronic payment terminal and method are provided for printing tickets. The method includes: carrying out payment transactions with the terminal; after each transaction, simultaneously printing several tickets concerning the transaction made. Accordingly, when several transactions are carried out successively, the time required for printing the tickets is shortened since the tickets are printed at the same time.

    摘要翻译: 提供一种用于打印票的电子支付终端和方法。 该方法包括:与终端进行支付交易; 每次交易后,同时打印有关交易的几张票。 因此,当连续进行多次交易时,打印票据所需的时间缩短,因为票据被同时打印。