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81. 发明授权

US07797536B1 Cryptographic device with stored key data and method for using stored key data to perform an authentication exchange or self test 有权
标题翻译：具有存储密钥数据的加密设备和使用存储的密钥数据执行认证交换或自检的方法
公开(公告)号：US07797536B1
公开(公告)日：2010-09-14
申请号：US11950088
申请日：2007-12-04
申请人： James D. Lyle
发明人： James D. Lyle
IPC分类号： H04L9/00
CPC分类号： H04L9/0844 , H04L2209/12 , H04L2209/26
摘要： In preferred embodiments, a cryptographic device in which two key sets are stored: a normal key set (typically unique to the device) and a test key set (typically used by each of a relatively large number of devices). The device uses the normal key set in a normal operating mode and uses the test key set in at least one test mode which can be a built-in self test mode. Alternatively, the device stores test data (e.g., an intermediate result of an authentication exchange) in addition to or instead of the test key set. In other embodiments, the invention is a cryptographic device including a cache memory which caches a portion of a key set for performing an authentication exchange and/or at least one authentication value generated during an authentication exchange. Other embodiments of the invention are systems including devices that embody the invention and methods that can be performed by systems or devices that embody the invention.
摘要翻译：在优选实施例中，存储有两个密钥集的密码装置：正常密钥组（通常是设备唯一的）和测试密钥组（通常由相对大量的设备中的每一个使用）。该设备在正常操作模式下使用正常密钥集，并使用至少一个可以是内置自检模式的测试模式进行测试。或者，除了测试密钥组之外或替代测试密钥组，设备存储测试数据（例如，认证交换的中间结果）。在其他实施例中，本发明是一种加密设备，其包括高速缓存存储器，其高速缓存用于执行认证交换的密钥组的一部分和/或认证交换期间生成的至少一个认证值。本发明的其他实施例是包括体现本发明的装置和可由体现本发明的系统或装置执行的方法的系统。

82. 发明授权

US07769168B2 Locally interative encryption generating compliant ciphertext for general syntax specifications 有权
标题翻译：本地迭代加密生成符合一般语法规范的密文
公开(公告)号：US07769168B2
公开(公告)日：2010-08-03
申请号：US11095048
申请日：2005-03-31
申请人： Bin Zhu , Yang Yang , Shipeng Li
发明人： Bin Zhu , Yang Yang , Shipeng Li
IPC分类号： H04K1/06
CPC分类号： H04L9/0637 , H04L9/065 , H04L2209/26 , H04L2209/30 , H04L2209/603
摘要： A fast and secure syntax compliant encryption schema, “locally iterative encryption,” can produce compliant ciphertext for a general syntax specification. In one implementation, an engine partitions a data stream into blocks, and encrypts each block iteratively until syntax compliance conditions are met. A system using the schema can utilize either stream ciphers or block ciphers in different modes. Locally iterative encryption methods are fast and remain at approximately the same speed even as the length of the data stream to be encrypted increases. Besides providing superior processing speed, the locally iterative encryption schema is also more robust to errors in the resulting ciphertext and in the resulting decrypted plaintext than conventional syntax compliant encryption techniques. Locally iterative encryption is secure as long as an underlying encryption cipher selected for use in the schema is secure.
摘要翻译：快速和安全的语法兼容加密模式“本地迭代加密”可以为通用语法规范提供符合规定的密文。在一个实现中，引擎将数据流分割成块，并且迭代地对每个块进行加密，直到满足语法符合条件。使用该模式的系统可以利用不同模式的流密码或块密码。即使要加密的数据流的长度增加，本地迭代加密方法也是快速且保持大致相同的速度。除了提供优越的处理速度之外，本地迭代加密模式对于所生成的密文中的错误以及生成的解密明文也比传统的符合法规的加密技术更加鲁棒。只要选择用于模式的底层加密密码是安全的，本地迭代加密就是安全的。

83. 发明申请

US20090323944A1 METHOD OF PUBLIC KEY GENERATION 有权
标题翻译：公共密钥生成方法
公开(公告)号：US20090323944A1
公开(公告)日：2009-12-31
申请号：US12119248
申请日：2008-05-12
申请人： Scott A. VANSTONE , Ashok VADEKAR , Robert J. LAMBERT , Robert P. GALLANT , Daniel R. BROWN , Alfred MENEZES
发明人： Scott A. VANSTONE , Ashok VADEKAR , Robert J. LAMBERT , Robert P. GALLANT , Daniel R. BROWN , Alfred MENEZES
IPC分类号： H04L9/14
CPC分类号： H04L9/0869 , H04L2209/26 , H04L2209/46
摘要： A potential bias in the generation of a private key is avoided by selecting the key and comparing it against the system parameters. If a predetermined condition is attained it is accepted. If not it is rejected and a new key is generated.
摘要翻译：通过选择密钥并将其与系统参数进行比较来避免私钥生成中的潜在偏差。如果达到预定条件，则被接受。如果不是，则被拒绝并生成新的密钥。

84. 发明申请

US20090300371A1 SEMICONDUCTOR INTEGRATED DEVICE AND METHOD OF TESTING SEMICONDUCTOR INTEGRATED DEVICE 有权
标题翻译：半导体集成器件和半导体集成器件的测试方法
公开(公告)号：US20090300371A1
公开(公告)日：2009-12-03
申请号：US12369699
申请日：2009-02-11
申请人： Fumio YOSHIYA
发明人： Fumio YOSHIYA
IPC分类号： H04L9/06 , G06F11/00
CPC分类号： G01R31/318533 , G06F21/72 , G09C1/00 , H04L9/0637 , H04L9/0894 , H04L2209/04 , H04L2209/12 , H04L2209/26
摘要： According to one embodiment, a semiconductor integrated device which stores secret data and is capable of operating in a test mode in which a scan test with respect to an internal circuit is executed, the semiconductor integrated device comprises a mode signal receiving module configured to receive a scan mode signal designating the test mode, a mask module configured to mask the secret data when the mode signal receiving module receives the scan mode signal, and an error detection module configured to detect presence or absence of error in the secret data and to store detection result in a first flip-flop.
摘要翻译：根据一个实施例，一种半导体集成装置，其存储秘密数据并且能够在执行相对于内部电路的扫描测试的测试模式下操作，所述半导体集成装置包括模式信号接收模块，其被配置为接收指定所述测试模式的扫描模式信号，掩模模块，被配置为当所述模式信号接收模块接收到所述扫描模式信号时掩蔽所述秘密数据;以及错误检测模块，被配置为检测所述秘密数据中是否存在错误并存储检测导致第一个触发器。

85. 发明申请

US20090208014A1 METHOD AND APPARATUS FOR VERIFYING AND DIVERSIFYING RANDOMNESS 有权
标题翻译：用于验证和分散随机的方法和装置
公开(公告)号：US20090208014A1
公开(公告)日：2009-08-20
申请号：US12031552
申请日：2008-02-14
申请人： Pierre Betouin , Mathieu Ciet , Augustin J. Farrugia , Gianpaolo Fasoli
发明人： Pierre Betouin , Mathieu Ciet , Augustin J. Farrugia , Gianpaolo Fasoli
IPC分类号： H04L9/28 , G06F7/58
CPC分类号： G06F7/58 , H04L9/0662 , H04L9/3236 , H04L2209/26 , H04L2209/603
摘要： Method and apparatus for ensuring randomness of pseudo-random numbers generated by a conventional computer operating system or electronic device. Typically pseudo-random number generators used in computer operating systems or electronic devices may be penetrated by a hacker (pirate), who penetrates a cryptographic or other supposedly secure process using the random numbers by tampering with the input random numbers, thus making them nonrandom. The present method and apparatus are intended to verify such random numbers to make sure that they are indeed random enough, by applying suitable random tests. Only if the values pass the test are they passed on for use in the cryptographic or other process. If they fail the test, a new set of random numbers is requested from the pseudo-random number generator. These are again tested. Further a diversity function may be applied to the random numbers even if they have passed the random number test in order to improve their randomness. This diversity function is for instance double encryption. An anti-replay feature is also included by which the pool of random numbers is subject to a check on each cycle to make sure that there has been no duplication of the input random numbers.
摘要翻译：用于确保由常规计算机操作系统或电子设备产生的伪随机数的随机性的方法和装置。在计算机操作系统或电子设备中使用的通常的伪随机数生成器可以被黑客（盗版者）穿透，黑客（盗版者）通过篡改输入的随机数来使用随机数进行加密或其他所谓的安全处理，从而使其不随机。本方法和装置旨在验证这样的随机数，以确保它们确实是随机的，通过应用适当的随机测试。只有当值通过测试时，它们才被传递以用于加密或其他过程。如果测试失败，则会从伪随机数发生器请求一组新的随机数。这些再次测试。此外，即使已经通过随机数测试来提高其随机性，也可以将分集函数应用于随机数。这种分集功能是例如双重加密。还包括反重播功能，通过该功能，随机数池将在每个周期进行检查，以确保输入随机数没有重复。

86. 发明授权

US07457430B2 Asymmetric spread-spectrum watermarking systems and methods of use 有权
公开(公告)号：US07457430B2
公开(公告)日：2008-11-25
申请号：US10982552
申请日：2004-11-05
申请人： Darko Kirovski , Yacov Yacobi
发明人： Darko Kirovski , Yacov Yacobi
IPC分类号： G06K9/00
CPC分类号： H04L9/30 , G06T1/005 , G06T2201/0065 , H04K1/00 , H04L2209/26 , H04L2209/608
摘要： Described herein is an audio watermarking technology for detecting watermarks in audio signals, such as a music clip. The watermark identifies the content producer, providing a signature that is embedded in the audio signal and cannot be removed. The watermark is designed to survive all typical kinds of processing and all types of malicious attacks that attempt to remove or modify the watermark from the signal. The implementations of the watermark detecting system, described herein, support quick, efficient, and accurate detection of watermarks by the specifically designed watermark detecting system. In one described implementation, a watermark detecting system employs an improved normalized covariance test to determine the presence of a watermark using less expensive materials (hardware), quicker calculations, and a more accurate test (than the original correlation test). In other described implementations, a watermark detecting system employs a cepstrum filter and dynamic processing to minimize the affect of the “noise” in the watermarked signal. The “noise” is the original content of the signal before such signal was watermarked. In still another described implementation, a watermark detecting system employs a mechanism for random detection threshold so that the act of watermark detection does not provide decipherable clues to a digital pirate as to the value or location of the embedded watermark.

87. 发明授权

US07412053B1 Cryptographic device with stored key data and method for using stored key data to perform an authentication exchange or self test 有权
标题翻译：具有存储密钥数据的加密设备和使用存储的密钥数据执行认证交换或自检的方法
公开(公告)号：US07412053B1
公开(公告)日：2008-08-12
申请号：US10268832
申请日：2002-10-10
申请人： James D. Lyle
发明人： James D. Lyle
IPC分类号： H04L9/00
CPC分类号： H04L9/0844 , H04L2209/12 , H04L2209/26
摘要： In preferred embodiments, a cryptographic device in which two key sets are stored: a normal key set (typically unique to the device) and a test key set (typically used by each of a relatively large number of devices). The device uses the normal key set in a normal operating mode and uses the test key set in at least one test mode which can be a built-in self test mode. Alternatively, the device stores test data (e.g., an intermediate result of an authentication exchange) in addition to or instead of the test key set. In other embodiments, the invention is a cryptographic device including a cache memory which caches a portion of a key set for performing an authentication exchange and/or at least one authentication value generated during an authentication exchange. Other embodiments of the invention are systems including devices that embody the invention and methods that can be performed by systems or devices that embody the invention.
摘要翻译：在优选实施例中，存储有两个密钥集的密码装置：正常密钥组（通常是设备唯一的）和测试密钥组（通常由相对大量的设备中的每一个使用）。该设备在正常操作模式下使用正常密钥集，并使用至少一个可以是内置自检模式的测试模式进行测试。或者，除了测试密钥组之外或替代测试密钥组，设备存储测试数据（例如，认证交换的中间结果）。在其他实施例中，本发明是一种加密设备，其包括高速缓存存储器，其高速缓存用于执行认证交换的密钥组的一部分和/或认证交换期间生成的至少一个认证值。本发明的其他实施例是包括体现本发明的装置和可由体现本发明的系统或装置执行的方法的系统。

88. 发明申请

US20080144814A1 Method of securely implementing a cryptography algorithm of the RSA type, and a corresponding component 失效
公开(公告)号：US20080144814A1
公开(公告)日：2008-06-19
申请号：US12071571
申请日：2008-02-22
申请人： Karine Villegas , Marc Joye , Benoit Chevallier-Mames
发明人： Karine Villegas , Marc Joye , Benoit Chevallier-Mames
IPC分类号： H04L9/30 , G06F7/72 , H04L9/28
CPC分类号： G06F7/723 , G06F2207/7242 , G06F2207/7257 , G06F2207/7271 , H04L9/003 , H04L9/004 , H04L9/302 , H04L2209/26
摘要： A method for the secure application of a cryptographic algorithm of the RSA type in an electronic component obtains the value of a public exponent e from a given set of probable values, without a priori knowledge of that value. Having determined the value for the public exponent e, the application of countermeasures using the value of e, to block error attacks and side channel attacks, particularly of the DPA and SPA type, are carried out on the application of a private operation of the cryptographic algorithm.

89. 发明授权

US07257709B2 Method and apparatus for performing validation of elliptic curve public keys 有权
标题翻译：用于执行椭圆曲线公钥验证的方法和装置
公开(公告)号：US07257709B2
公开(公告)日：2007-08-14
申请号：US10653206
申请日：2003-09-03
申请人： Daniel R. L. Brown , Atsushi Yamada
发明人： Daniel R. L. Brown , Atsushi Yamada
IPC分类号： G06F9/00
CPC分类号： G06F7/725 , H04L9/3066 , H04L2209/26
摘要： A method of validating a public key comprising the steps of receiving a public key, computing a function of the public key, the function having a predefined value for all points of a given order, and comparing the result of the function to predetermined information to indicate the validity of the public key.
摘要翻译：一种验证公钥的方法，包括以下步骤：接收公共密钥，计算公开密钥的功能，具有给定订单的所有点的预定义值的功能，以及将功能的结果与预定信息进行比较以指示公钥的有效性。

90. 发明授权

US07249254B2 Method and apparatus for protecting NTRU against a timing attack 有权
标题翻译：用于保护NTRU免受定时攻击的方法和装置
公开(公告)号：US07249254B2
公开(公告)日：2007-07-24
申请号：US10734231
申请日：2003-12-15
申请人： Scott A. Vanstone , John A. Proos , Marinus Struik
发明人： Scott A. Vanstone , John A. Proos , Marinus Struik
IPC分类号： G06F1/24
CPC分类号： H04L9/3093 , H04L9/005 , H04L2209/08 , H04L2209/12 , H04L2209/20 , H04L2209/26
摘要： A method of decrypting a message encrypted using a truncated ring cryptosystem. The method comprises selecting a window parameter T determining a plurality of windows of a predetermined size, each window being shifted by an amount less than or equal to the window parameter T. A decryption candidate is determined for each possible window. Each decryption candidate is tested to determine whether it is a valid message. The result of the decryption is chosen to be a valid message found in the previous step or if no valid message is found it is indicated that the message could not be decrypted. By this method, a constant number of decryption candidates are determined for each decryption.
摘要翻译：一种解密使用截断的环密码系统加密的消息的方法。该方法包括选择确定预定大小的多个窗口的窗口参数T，每个窗口移动小于或等于窗口参数T的量。为每个可能窗口确定解密候选。对每个解密候选进行测试，以确定它是否是有效的消息。解密的结果被选择为在前一步骤中找到的有效消息，或者如果没有找到有效的消息，则指示该消息不能被解密。通过这种方法，为每个解密确定常数的解密候选。

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