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    • 32. 发明授权
    • Device for secure read, write and read/modify/write operation with divided track transducer head
    • 用于使用分割轨道换能器头进行安全读取,写入和读取/修改/写入操作的设备
    • US06830183B2
    • 2004-12-14
    • US10427860
    • 2003-05-01
    • Clay von MuellerRobert J. Mos
    • Clay von MuellerRobert J. Mos
    • G06K708
    • G06K7/084
    • A method and apparatus for placing and later determining the distance between transitions from a first logical state to a second logical state stored on a medium, for example, a document. This determination is used to precisely characterize the information pattern in order to authenticate the information and the medium on which the information is stored. The invention uses a reader having a leading and trailing read apparatus, which allow information to be read simultaneously from two or more locations spaced a known distance apart. The distance between the center lines of each read apparatus is preferably an odd integer multiple of one half the distance between logical clock transitions. The distance between a first transition at the leading read apparatus and a next transition at the trailing read apparatus is used as a reference, hence given the term the “Reference Value”. The Reference Value is compared with the distance between the first transition and a second transition on the medium. Detection of deviations in spacing between transitions is unaffected by variations if the velocity of the medium with respect to the reader. Thus, the present invention is a method and apparatus for reading and writing conventional ISO 7816 data with additional precisely placed pulses that appear as noise to conventional reading apparatuses and as data to the described invention. In addition the present invention applies to a medium, which moves at an uncontrolled velocity relative to a read/write apparatus with which the data is read and written.
    • 一种用于放置并随后确定从存储在介质(例如文档)上的第一逻辑状态到第二逻辑状态的转换之间的距离的方法和装置。 该确定用于精确地表征信息模式,以便认证信息和存储信息的介质。 本发明使用具有前导和后置读取装置的读取器,其允许从间隔已知距离的两个或多个位置同时读取信息。 每个读取装置的中心线之间的距离优选地是逻辑时钟转换之间的距离的一半的奇数整数倍。 前导读取装置的第一转换与尾部读取装置的下一个转换之间的距离被用作参考,因此给出术语“参考值”。 将参考值与介质上的第一跃迁和第二过渡之间的距离进行比较。 如果介质相对于读取器的速度,检测转换间距的偏差不受变化的影响。 因此,本发明是一种用于读取和写入常规ISO 7816数据的方法和装置,其中附加精确放置的脉冲作为传统读取装置的噪声和作为所描述的发明的数据出现。 此外,本发明适用于相对于读/写设备读取和写入的读/写设备以不受控制的速度移动的介质。
    • 34. 发明授权
    • Variable-length cipher system and method
    • 可变长度密码系统和方法
    • US09361617B2
    • 2016-06-07
    • US12481504
    • 2009-06-09
    • Clay von MuellerMihir Bellare
    • Clay von MuellerMihir Bellare
    • H04L9/28G06Q20/38G07F7/10H04L9/06H04L9/00
    • G06Q20/3823G07F7/1008G07F7/1016H04L9/0625H04L2209/12H04L2209/56
    • Systems and methods for enciphering data are provided. In one embodiment, information is enciphered using a variable block length cipher that returns the encrypted symbol set in the same format as the plaintext symbol set. The cipher can be based on DES, AES or other block ciphers. In one example implementation a method for enciphering token information the invention provides for enciphering token information by constructing a tweak of a defined length using token information; converting the tweak to a bit string of a defined size to form a first parameter; converting a number of digits of plaintext to a byte string of a defined size to form a second parameter, wherein the number of digits converted varies; defining a data encryption standard key; applying the data encryption standard key to the first and second parameters; computing a specified number of encryption rounds; and receiving enciphered token information.
    • 提供了加密数据的系统和方法。 在一个实施例中,使用可变块长度密码来加密信息,所述可变块长度密码返回与明文符号集合相同格式的加密符号集合。 密码可以基于DES,AES或其他块密码。 在一个示例实现中,本发明提供了用于加密令牌信息的方法,其通过使用令牌信息构造具有定义长度的调整来加密令牌信息; 将调整转换为定义大小的位串以形成第一参数; 将明文的数位数转换为规定大小的字节串以形成第二参数,其中转换的位数变化; 定义数据加密标准密钥; 将数据加密标准密钥应用于第一和第二参数; 计算指定数量的加密回合; 并接收加密令牌信息。
    • 37. 发明申请
    • MULTI DIMENSIONAL READ HEAD ARRAY
    • 多维阅读头阵列
    • US20080290167A1
    • 2008-11-27
    • US11753142
    • 2007-05-24
    • Clay von Mueller
    • Clay von Mueller
    • G06K7/08
    • G06K7/084
    • A method and apparatus for reading data from a track of a magnetic stripe are provided. According to one implementation, the method provides detecting a magnetic transition on the track by each of a plurality of read mechanisms arranged in a column across the track; determining an epoch for each detection of the transition by the plurality of read mechanisms; and characterizing the magnetic stripe based on the epochs determined for the transition detections. The apparatus can include a plurality of read mechanisms arranged so as to be oriented in a columnar array across the track when the track is moved relative to the array; and detection circuitry coupled to the read mechanisms.
    • 提供了用于从磁条的轨迹读取数据的方法和装置。 根据一个实施方案,该方法提供通过布置在轨道上的列中的多个读取机构中的每一个来检测轨道上的磁转变; 确定通过所述多个读取机构的每次检测所述转换的时期; 并基于为转换检测确定的时期来表征磁条。 该装置可以包括多个读取机构,其布置成当轨道相对于阵列移动时被定向成跨过轨道的柱状阵列; 以及耦合到读取机构的检测电路。
    • 40. 发明申请
    • Secure magnetic stripe reader for handheld computing and method of using same
    • 用于手持计算的安全磁条读取器及其使用方法
    • US20060049255A1
    • 2006-03-09
    • US10936359
    • 2004-09-07
    • Clay von MuellerRobert MosBob Mos
    • Clay von MuellerRobert MosBob Mos
    • G06K7/08
    • G06K7/082G06F21/72G06F21/83G06Q20/20G06Q20/32G06Q20/325G06Q20/3823G06Q40/02G07F7/0873G07F7/0886G07F7/1016
    • A secure magnetic stripe card stripe reader (MSR) module and software system capable of encrypting the magnetic stripe data to CISP standards for use in point of sale (POS) and other applications requiring data security using non secure networks and computing devices. Additionally, when incorporated within an attachment for conventional personal digital assistant (PDA) or cell phone or stationary terminal, provides encrypted data from the magnetic head assembly providing compliance with Federal Information Processing Standards Publication Series FIPS 140 covering security and tampering standards. Moreover, this module and software system includes the capability of providing secure POS transactions to legacy transaction processing systems transparently to the existing infrastructure. Furthermore, this module and software system includes the capability of transparently providing detection of fraudulently copied magnetic stripe cards.
    • 一种安全的磁条卡条带读取器(MSR)模块和软件系统,能够将磁条数据加密到CISP标准,以便在销售点(POS)和其他需要使用非安全网络和计算设备进行数据安全的应用中使用。 此外,当并入用于常规个人数字助理(PDA)或手机或固定终端的附件中时,提供来自磁头组件的加密数据,其提供符合联邦信息处理标准出版系列FIPS 140,其涵盖安全性和篡改标准。 此外,该模块和软件系统包括向现有基础架构透明地向传统交易处理系统提供安全POS交易的能力。 此外,该模块和软件系统包括透明地提供欺诈性复制磁条卡的检测能力。