Randomized sparse formats for efficient and secure computation on elliptic curves
    1.
    发明授权
    Randomized sparse formats for efficient and secure computation on elliptic curves 失效
    用于椭圆曲线高效安全计算的随机稀疏格式

    公开(公告)号:US07664258B2

    公开(公告)日:2010-02-16

    申请号:US11275372

    申请日:2005-12-28

    IPC分类号: H04L9/28 H04L9/30

    CPC分类号: G06F7/725 G06F2207/7242

    摘要: Techniques are described that facilitate cryptographic operations, such as data encryption, signing and others, encryption using a computerized method for multiplying a scalar by a point. In one implementation, a set of random integers is selected, wherein the set comprises at least one integer selected randomly. A string is configured, based in part on the set of random integers. Output in the form of a product of the scalar and the point is then calculated, based on the string.

    摘要翻译: 描述了促进诸如数据加密,签名等的加密操作的技术,使用用于将标量乘以点的计算机化方法的加密。 在一个实现中,选择一组随机整数,其中该集合包括随机选择的至少一个整数。 部分基于随机整数集合来配置字符串。 然后根据字符串计算标量和点的乘积的形式的输出。

    Use of isogenies for design of cryptosystems
    2.
    发明授权
    Use of isogenies for design of cryptosystems 有权
    使用等基因设计密码系统

    公开(公告)号:US07499544B2

    公开(公告)日:2009-03-03

    申请号:US10816083

    申请日:2004-03-31

    IPC分类号: H04L9/30

    摘要: Techniques are disclosed to provide public-key encryption systems. More particularly, isogenies of Abelian varieties (e.g., elliptic curves in one-dimensional cases) are utilized to provide public-key encryption systems. For example, the isogenies permit the use of multiple curves instead of a single curve to provide more secure encryption. The techniques may be applied to digital signatures and/or identity based encryption (IBE) solutions. Furthermore, the isogenies may be used in other applications such as blind signatures, hierarchical systems, and the like. Additionally, solutions are disclosed for generating the isogenies.

    摘要翻译: 公开了提供公钥加密系统的技术。 更具体地,利用Abelian品种的同基因(例如,一维情况下的椭圆曲线)来提供公钥加密系统。 例如,等基因允许使用多个曲线而不是单个曲线来提供更安全的加密。 这些技术可以应用于数字签名和/或基于身份的加密(IBE)解决方案。 此外,等基因可以用于其他应用中,例如盲签名,分层系统等。 另外,公开了用于产生等量基因的解决方案。

    Automated secure pairing for wireless devices
    4.
    发明授权
    Automated secure pairing for wireless devices 有权
    无线设备的自动安全配对

    公开(公告)号:US08989706B2

    公开(公告)日:2015-03-24

    申请号:US13335454

    申请日:2011-12-22

    摘要: Systems, methods, and/or techniques (“tools”) are described herein that relate to automated secure pairing for devices, and that relate to parallel downloads of content using devices. The tools for pairing the devices may perform authentication protocols that are based on addresses and on keys. The address-based authentication protocol may operate on address book entries maintained by the devices. The key-based authentication protocol may operate using a key exchange between the devices.

    摘要翻译: 这里描述了与设备的自动安全配对相关的系统,方法和/或技术(“工具”),并且涉及使用设备的内容的并行下载。 用于配对设备的工具可以执行基于地址和密钥的认证协议。 基于地址的认证协议可以对由设备维护的地址簿条目进行操作。 基于密钥的认证协议可以使用设备之间的密钥交换来操作。

    Randomized signal transforms and their applications
    5.
    发明授权
    Randomized signal transforms and their applications 失效
    随机信号变换及其应用

    公开(公告)号:US08595276B2

    公开(公告)日:2013-11-26

    申请号:US12782647

    申请日:2010-05-18

    IPC分类号: G06F1/02

    CPC分类号: H04N7/167 H04N21/8358

    摘要: Techniques are disclosed to provide randomized signal transforms and/or their applications. More particularly, a signal (e.g., an audio signal, an image, or a video signal) is transformed by applying randomly-selected basis functions to the signal. The applications of the randomized signal transforms include, but are not limited to, compression, denoising, hashing, identification, authentication, and data embedding (e.g., watermarking).

    摘要翻译: 公开了提供随机信号变换和/或其应用的技术。 更具体地,通过对信号应用随机选择的基函数来变换信号(例如,音频信号,图像或视频信号)。 随机信号变换的应用包括但不限于压缩,去噪,散列,识别,认证和数据嵌入(例如,水印)。

    Resilient classification of data
    6.
    发明授权
    Resilient classification of data 有权
    弹性数据分类

    公开(公告)号:US08364617B2

    公开(公告)日:2013-01-29

    申请号:US11625249

    申请日:2007-01-19

    IPC分类号: G06E1/00 G06F15/18

    摘要: A classification system is described for resilient classification of data. In various embodiments, the classification system divides a full set of the training data into a positive subset and a negative subset. The positive subset contains all training data with a positive classification value and the negative subset contains all training data with a negative classification value. The classification system constructs several subsets of the training data wherein each subset contains data randomly selected from both the positive subset and the negative subset. The classification system then creates at least two classifiers based on each of the randomly created subsets of the training data.

    摘要翻译: 描述了对数据进行弹性分类的分类系统。 在各种实施例中,分类系统将整套训练数据划分为正子集和负子集。 正子集包含具有正分类值的所有训练数据,负子集包含具有负分类值的所有训练数据。 分类系统构建训练数据的几个子集,其中每个子集包含从正子集和负子集两者随机选择的数据。 分类系统然后基于训练数据的随机创建的子集中的每一个创建至少两个分类器。

    Systems and methods for embedding media forensic identification markings
    7.
    发明授权
    Systems and methods for embedding media forensic identification markings 有权
    用于嵌入媒体法医识别标记的系统和方法

    公开(公告)号:US08032754B2

    公开(公告)日:2011-10-04

    申请号:US10754235

    申请日:2004-01-09

    IPC分类号: H04L9/32

    摘要: The present invention leverages a series of media watermark locations to provide information relating to media ownership and/or distribution source. This provides a forensic means to establish a source of media with a high degree of certainty despite malicious and/or non-malicious attacks. By providing embedded user unique identification, a source of copied media can be determined without the embedded information substantially interfering with the intended purpose of the media itself. In one instance of the present invention, digital media is transformed into an N-dimensional media signal. User unique keys are then utilized along with a master key to determine locations for embedding a watermark signal that possesses substantially similar quantized statistics as the transformed media signal. The watermark signal is then embedded into the media signal, fingerprinting the media.

    摘要翻译: 本发明利用一系列媒体水印位置来提供与媒体所有权和/或分发源相关的信息。 这提供了一种法医手段,尽管恶意和/或非恶意攻击具有高度确定性的媒体来源。 通过提供嵌入式用户唯一标识,可以确定复制媒体的来源,而不会使嵌入的信息基本上干扰媒体本身的预期目的。 在本发明的一个实例中,数字媒体被转换为N维媒体信号。 然后,用户唯一密钥与主密钥一起被使用以确定用于嵌入具有基本相似的量化统计量的水印信号作为变换的媒体信号的位置。 然后将水印信号嵌入到媒体信号中,对媒体进行指纹识别。

    Software protection using data structures
    8.
    发明授权
    Software protection using data structures 有权
    使用数据结构进行软件保护

    公开(公告)号:US07975149B2

    公开(公告)日:2011-07-05

    申请号:US11428190

    申请日:2006-06-30

    摘要: Software protection using data structures is described. In one implementation, an engine between the processor and the memory of a computing device encrypts and stores data and program variables in blocks of memory that correspond to nodes of a tree-like data structure. When accessed, the nodes of this search tree are rearranged according to various schemata to obscure memory access patterns from being detected by cache attacks or side-channel attacks. In one implementation, the data structure is a splay tree that self-rearranges upon access and increases efficiency while providing security.

    摘要翻译: 描述使用数据结构的软件保护。 在一个实现中,处理器和计算设备的存储器之间的引擎将对应于树状数据结构的节点的数据块和程序变量加密并存储在存储器块中。 当访问时,根据各种模式重新排列该搜索树的节点,以掩盖由高速缓存攻击或侧向信道攻击检测到的存储器访问模式。 在一个实现中,数据结构是一个显示树,在访问时自我重新排列,并在提供安全性的同时提高效率。

    Combining resilient classifiers
    9.
    发明授权
    Combining resilient classifiers 有权
    组合弹性分类器

    公开(公告)号:US07873583B2

    公开(公告)日:2011-01-18

    申请号:US11625266

    申请日:2007-01-19

    IPC分类号: G06E1/00

    摘要: A classification system is described for resiliently classifying data. In various embodiments, the classification system constructs a combined classifier based on multiple classifiers that are constructed to classify a set of training data. The combined classifier can be constructed in parallel with the multiple classifiers and applied to classify data.

    摘要翻译: 描述了对数据进行弹性分类的分类系统。 在各种实施例中,分类系统基于被分类一组训练数据的多个分类器来构建组合分类器。 组合分类器可以与多个分类器并行构建并应用于数据分类。