Method for the secure transmission of messages
    1.
    发明授权
    Method for the secure transmission of messages 有权
    消息安全传输的方法

    公开(公告)号:US07003665B1

    公开(公告)日:2006-02-21

    申请号:US09315901

    申请日:1999-05-20

    IPC分类号: H04L9/00 H04K1/00

    CPC分类号: H04L9/0827 H04L9/065 H04L9/12

    摘要: A method and system for the secure transmission of messages between at least two users of a telecommunications network, using a secret, random binary encryption key, which is used once for encryption. The key is generated in a key generator recorded on at least two portable data media, such as CDs, and then output in this form to the users, each of whom receives one data medium containing the recorded key. The key is not stored in any other location. The users insert the recorded key media into reading devices, which are respectively assigned to telecommunications equipment, e.g., telephones, fax machines, or PCs, employed by the users. When a connection is established, logistics devices, which are also assigned to the telecommunications equipment, check whether the keys were entered properly and whether they correspond to each other. The logistics devices also synchronize the entered keys, or at least portions of the keys, when the information to be transmitted is encrypted and decrypted.

    摘要翻译: 一种用于在电信网络的至少两个用户之间使用一次用于加密的秘密随机二进制加密密钥来安全地传送消息的方法和系统。 该密钥在记录在至少两个便携式数据媒体(例如CD)上的密钥发生器中产生,然后以该形式输出给每个用户,每个用户接收包含记录密钥的一个数据媒体。 密钥不存储在任何其他位置。 用户将记录的密钥介质插入到分别被分配给用户使用的电信设备,例如电话,传真机或PC的读取设备中。 当建立连接时,也分配给电信设备的物流设备检查密钥是否正确输入以及它们是否相互对应。 当要发送的信息被加密和解密时,物流设备还使输入的密钥或至少部分密钥同步。

    Method for generating a random number on a quantum-mechanical basis and random number generator
    2.
    发明授权
    Method for generating a random number on a quantum-mechanical basis and random number generator 失效
    用于在量子力学基础上生成随机数和随机数发生器的方法

    公开(公告)号:US06609139B1

    公开(公告)日:2003-08-19

    申请号:US09485835

    申请日:2000-05-09

    IPC分类号: G06F102

    CPC分类号: H04L9/0852 G06F7/588 H03K3/84

    摘要: A method and an apparatus for generating a random number on a quantum-mechanics machanics basis using the fundamentally random choice of path of a quantum particle on a beam splitter. Detectors are provided for capturing the particles being assigned to the outputs of the beam splitter. The detectors or their counting events represent different number values of the random number, or random number sequence. The generation of a multi-particle state in the output channel of the beam splitter, and thus of several particles which impact on a detector (D1, D1′, D2, D2′), significantly and advantageously increases the response probability of the detector and thus the probability of obtaining a useable counting event for every multi-particle state generated by the particle source. In this way a random sequence can be obtained more rapidly and more reliably than with single-particle detection.

    摘要翻译: 一种在量子力学机制基础上使用量子粒子在分束器上的根本性随机选择路径产生随机数的方法和装置。 提供检测器用于捕获分配给分束器的输出的粒子。 检测器或其计数事件表示随机数或随机数序列的不同数值。 在分束器的输出通道中以及因此影响检测器(D1,D1',D2,D2')的几个颗粒的多粒子状态的产生显着且有利地增加了检测器的响应概率, 因此获得由粒子源产生的每个多粒子状态的可用计数事件的概率。 以这种方式,与单粒子检测相比,可以获得更快速和更可靠的随机序列。

    METHOD AND APPARATUS FOR COMPRESSING AND DECOMPRESSING DIGITAL DATA BY ELECTRONIC MEANS USING A CONTEXT GRAMMAR
    3.
    发明申请
    METHOD AND APPARATUS FOR COMPRESSING AND DECOMPRESSING DIGITAL DATA BY ELECTRONIC MEANS USING A CONTEXT GRAMMAR 审中-公开
    通过电子手段压缩和分解数字数据的方法与装置

    公开(公告)号:US20100312755A1

    公开(公告)日:2010-12-09

    申请号:US12444434

    申请日:2007-07-24

    IPC分类号: G06F17/30

    CPC分类号: H03M7/30

    摘要: A method for electronically compressing and decompressing digital data using a context grammar includes grammatically compressing first digital data by discovering multiply occurring sequences of non-further-factorizable terminal symbols in the first digital data and replacing the discovered multiply occurring sequences of non-further-factorizable terminal symbols with non-terminal symbols that can be further factorized. Digital data belonging to the non-terminal symbols is stored in a context grammar. Second digital data is compressed using the context grammar. The first digital data relates to a column of data stored in a database and the second digital data relates to entries in the column of data stored in the database.

    摘要翻译: 使用上下文语法电子地压缩和解压缩数字数据的方法包括通过在第一数字数据中发现不可进一步因子化的终端符号的乘法出现序列来语法压缩第一数字数据,并且替换所发现的不可再分解的乘法序列 具有可以进一步分解的非终端符号的终端符号。 属于非终端符号的数字数据被存储在上下文语法中。 使用上下文语法压缩第二数字数据。 第一数字数据涉及存储在数据库中的一列数据,并且第二数字数据涉及存储在数据库中的数据列中的条目。

    Method and arrangement for generating binary sequences of random numbers
    4.
    发明授权
    Method and arrangement for generating binary sequences of random numbers 有权
    生成随机数二进制序列的方法和装置

    公开(公告)号:US06986056B1

    公开(公告)日:2006-01-10

    申请号:US09402322

    申请日:1998-12-10

    CPC分类号: H04L9/0852 G06F7/588 H03K3/84

    摘要: A method and arrangement for generating binary sequences of random numbers uses the principle of random selection of the path of photons on a beam splitter and generating a random number by using two detectors (D10, D21) downstream from a beam splitter (ST2). To generate photons, a light source (L) of a low power is used, and an additional beam splitter (ST1) is connected upstream from the beam splitter (ST2). The photons emitted by the light source (L) during a predefined measurement time are split by the beam splitters (ST1, ST2) arranged one after the other in the beam path of the light source (L). The random sequence is generated when the splitting of the photons matches a predefined photon scheme.

    摘要翻译: 用于产生随机数二进制序列的方法和装置使用在分束器上随机选择光子路径的原理,并通过使用两个检测器(D 1,N 2,D 2, (ST2)的下游侧(SUB> 1 )。 为了产生光子,使用低功率的光源(L),并且附加的分束器(ST1)连接到分束器(ST2)的上游。 在预定的测量时间期间由光源(L)发射的光子被光源(L)的光束路径中一个接一个布置的分束器(ST1,ST2)分开。 当光子的分裂符合预定义的光子方案时,产生随机序列。

    Quantum cryptography system for a secure transmission of random keys using a polarization setting method
    5.
    发明授权
    Quantum cryptography system for a secure transmission of random keys using a polarization setting method 失效
    量子密码系统,用于使用偏振设置方法安全地传输随机密钥

    公开(公告)号:US06748081B1

    公开(公告)日:2004-06-08

    申请号:US09357436

    申请日:1999-07-20

    IPC分类号: H04L900

    CPC分类号: C09K19/02 G02F1/13 H04L9/0858

    摘要: A quantum cryptography system using electrooptical liquid crystal modulators which change the polarization and which are designed as electrically rotatable retardation plates whose two birefringent axes are rotated by the applied electrical field around an angle &thgr; which depends on the strength of this field. A &lgr;/2 retardation plate rotates the elliptically polarized light striking the plate around an angle 2&thgr; at speeds in the microsecond range. The quantum cryptography system can be used for interception-proof data transmission over transmission links that are accessible to the public.

    摘要翻译: 一种使用电光学液晶调制器的量子密码系统,其改变偏振并且被设计为电可旋转的相位差板,其两个双折射轴通过所施加的电场围绕取决于该场的强度的角度θ旋转。 λ/ 2延迟板以微秒范围的速度旋转以2θ的角度撞击板的椭圆偏振光。 量子加密系统可用于公共访问的传输链路上的拦截数据传输。