公开(公告)号：US20100146299A1

公开(公告)日：2010-06-10

申请号：US12608724

申请日：2009-10-29

申请人： Ashwin SWAMINATHAN ,  Yinian Mao ,  Guan-Ming Su ,  Hongmei Gou ,  Avinash L. Varna ,  Shan He ,  Min Wu ,  Douglas W. Oard

发明人： Ashwin SWAMINATHAN ,  Yinian Mao ,  Guan-Ming Su ,  Hongmei Gou ,  Avinash L. Varna ,  Shan He ,  Min Wu ,  Douglas W. Oard

IPC分类号： G06F17/30 ,  H04L9/00

CPC分类号： G06F16/24578 ,  G06F16/3335 ,  G06F16/48 ,  G06F16/951 ,  G06F21/6218 ,  G06F21/6227 ,  H04L9/008 ,  H04L9/3236 ,  H04L2209/60

摘要： A confidentiality preserving system and method for performing a rank-ordered search and retrieval of contents of a data collection. The system includes at least one computer system including a search and retrieval algorithm using term frequency and/or similar features for rank-ordering selective contents of the data collection, and enabling secure retrieval of the selective contents based on the rank-order. The search and retrieval algorithm includes a baseline algorithm, a partially server oriented algorithm, and/or a fully server oriented algorithm. The partially and/or fully server oriented algorithms use homomorphic and/or order preserving encryption for enabling search capability from a user other than an owner of the contents of the data collection. The confidentiality preserving method includes using term frequency for rank-ordering selective contents of the data collection, and retrieving the selective contents based on the rank-order.

摘要翻译： 一种用于执行数据收集的内容的秩序搜索和检索的机密性保存系统和方法。 该系统包括至少一个计算机系统，其包括使用术语频率和/或类似特征的搜索和检索算法，用于数据收集的排序选择性内容，并且能够基于秩顺序安全地检索选择性内容。 搜索和检索算法包括基线算法，部分面向服务器的算法和/或完全面向服务器的算法。 部分和/或完全面向服务器的算法使用同态和/或顺序保存加密来实现除数据收集内容的所有者之外的用户的搜索能力。 机密性保存方法包括使用术语频率对数据收集的排序选择性内容进行排序，并且基于秩次来检索选择性内容。

公开(公告)号：US20160154971A9

公开(公告)日：2016-06-02

申请号：US14104652

申请日：2013-12-12

申请人： Ashwin Swaminathan ,  Yinian Mao ,  Guan-Ming Su ,  Hongmei Gou ,  Avinash Varna ,  Shan He ,  Min Wu ,  Douglas W. Oard

发明人： Ashwin Swaminathan ,  Yinian Mao ,  Guan-Ming Su ,  Hongmei Gou ,  Avinash Varna ,  Shan He ,  Min Wu ,  Douglas W. Oard

IPC分类号： G06F21/62 ,  G06F17/30

CPC分类号： G06F17/3053 ,  G06F17/30038 ,  G06F17/30666 ,  G06F17/30864 ,  G06F21/6218 ,  G06F21/6227 ,  H04L9/008 ,  H04L9/3236 ,  H04L2209/60

摘要： A confidentiality preserving system and method for performing a rank-ordered search and retrieval of contents of a data collection. The system includes at least one computer system including a search and retrieval algorithm using term frequency and/or similar features for rank-ordering selective contents of the data collection, and enabling secure retrieval of the selective contents based on the rank-order. The search and retrieval algorithm includes a baseline algorithm, a partially server oriented algorithm, and/or a fully server oriented algorithm. The partially and/or fully server oriented algorithms use homomorphic and/or order preserving encryption for enabling search capability from a user other than an owner of the contents of the data collection. The confidentiality preserving method includes using term frequency for rank-ordering selective contents of the data collection, and retrieving the selective contents based on the rank-order.

公开(公告)号：US20150169889A1

公开(公告)日：2015-06-18

申请号：US14104652

申请日：2013-12-12

申请人： Ashwin Swaminathan ,  Yinian Mao ,  Guan-Ming Su ,  Hongmei Gou ,  Avinash Varna ,  Shan He ,  Min Wu ,  Douglas W. Oard

发明人： Ashwin Swaminathan ,  Yinian Mao ,  Guan-Ming Su ,  Hongmei Gou ,  Avinash Varna ,  Shan He ,  Min Wu ,  Douglas W. Oard

IPC分类号： G06F21/62 ,  G06F17/30

CPC分类号： G06F16/24578 ,  G06F16/3335 ,  G06F16/48 ,  G06F16/951 ,  G06F21/6218 ,  G06F21/6227 ,  H04L9/008 ,  H04L9/3236 ,  H04L2209/60

摘要： A confidentiality preserving system and method for performing a rank-ordered search and retrieval of contents of a data collection. The system includes at least one computer system including a search and retrieval algorithm using term frequency and/or similar features for rank-ordering selective contents of the data collection, and enabling secure retrieval of the selective contents based on the rank-order. The search and retrieval algorithm includes a baseline algorithm, a partially server oriented algorithm, and/or a fully server oriented algorithm. The partially and/or fully server oriented algorithms use homomorphic and/or order preserving encryption for enabling search capability from a user other than an owner of the contents of the data collection. The confidentiality preserving method includes using term frequency for rank-ordering selective contents of the data collection, and retrieving the selective contents based on the rank-order.

摘要翻译： 一种用于执行数据收集的内容的秩序搜索和检索的机密性保存系统和方法。 该系统包括至少一个计算机系统，其包括使用术语频率和/或类似特征的搜索和检索算法，用于数据收集的排序选择性内容，并且能够基于秩顺序安全地检索选择性内容。 搜索和检索算法包括基线算法，部分面向服务器的算法和/或完全面向服务器的算法。 部分和/或完全面向服务器的算法使用同态和/或顺序保存加密来实现除数据收集内容的所有者之外的用户的搜索能力。 机密性保存方法包括使用术语频率对数据收集的排序选择性内容进行排序，并且基于秩次来检索选择性内容。

公开(公告)号：US20170235736A1

公开(公告)日：2017-08-17

申请号：US15274605

申请日：2016-09-23

申请人： Ashwin Swaminathan ,  Yinian Mao ,  Guan-Ming Su ,  Hongmei Gou ,  Avinash Varna ,  Shan He ,  Min Wu ,  Douglas W. Oard

发明人： Ashwin Swaminathan ,  Yinian Mao ,  Guan-Ming Su ,  Hongmei Gou ,  Avinash Varna ,  Shan He ,  Min Wu ,  Douglas W. Oard

IPC分类号： G06F17/30 ,  H04L9/00 ,  H04L9/32 ,  G06F21/62

CPC分类号： G06F16/24578 ,  G06F16/3335 ,  G06F16/48 ,  G06F16/951 ,  G06F21/6218 ,  G06F21/6227 ,  H04L9/008 ,  H04L9/3236 ,  H04L2209/60

摘要： A confidentiality preserving system and method for performing a rank-ordered search and retrieval of contents of a data collection. The system includes at least one computer system including a search and retrieval algorithm using term frequency and/or similar features for rank-ordering selective contents of the data collection, and enabling secure retrieval of the selective contents based on the rank-order. The search and retrieval algorithm includes a baseline algorithm, a partially server oriented algorithm, and/or a fully server oriented algorithm. The partially and/or fully server oriented algorithms use homomorphic and/or order preserving encryption for enabling search capability from a user other than an owner of the contents of the data collection. The confidentiality preserving method includes using term frequency for rank-ordering selective contents of the data collection, and retrieving the selective contents based on the rank-order.

公开(公告)号：US20060277530A1

公开(公告)日：2006-12-07

申请号：US11445374

申请日：2006-06-02

申请人： Min Wu ,  Ashwin Swaminathan ,  Yinian Mao

发明人： Min Wu ,  Ashwin Swaminathan ,  Yinian Mao

IPC分类号： G06F9/45

CPC分类号： G06F9/30156 ,  G06F8/4434 ,  G06F9/30178

摘要： Bit reductions in program instructions are achieved by determining the set of bit patterns in bit locations of the instructions. If only a subset of bit patterns is present in the instructions, they may be represented by an index value having a smaller number of bits. The index value may be substituted into the instruction and later used in decoding by referencing a corresponding bit pattern in a lookup table. The bit-reduction in the instruction makes way for supplemental data bits which may then be embedded.

摘要翻译： 通过确定指令的位位置中的位模式集合来实现程序指令的位减少。 如果在指令中仅存在位模式的子集，则它们可以由具有较少位数的索引值表示。 索引值可以被替换为指令，并且稍后通过引用查找表中的相应位模式而在解码中使用。 指令中的位减少使补充数据位成为可能，然后可以嵌入。

公开(公告)号：US07840789B2

公开(公告)日：2010-11-23

申请号：US11445374

申请日：2006-06-02

申请人： Min Wu ,  Ashwin Swaminathan ,  Yinian Mao

发明人： Min Wu ,  Ashwin Swaminathan ,  Yinian Mao

IPC分类号： G06F15/11 ,  G06F15/76 ,  G06F7/38 ,  G06F9/00 ,  G06F9/44 ,  G06F7/00 ,  G06F9/45

CPC分类号： G06F9/30156 ,  G06F8/4434 ,  G06F9/30178

摘要： Bit reductions in program instructions are achieved by determining the set of bit patterns in bit locations of the instructions. If only a subset of bit patterns is present in the instructions, they may be represented by an index value having a smaller number of bits. The index value may be substituted into the instruction and later used in decoding by referencing a corresponding bit pattern in a lookup table. The bit-reduction in the instruction makes way for supplemental data bits which may then be embedded.

摘要翻译： 通过确定指令的位位置中的位模式集合来实现程序指令的位减少。 如果在指令中仅存在位模式的子集，则它们可以由具有较少位数的索引值表示。 索引值可以被替换为指令，并且稍后通过引用查找表中的相应位模式而在解码中使用。 指令中的位减少使补充数据位成为可能，然后可以嵌入。

公开(公告)号：US07817817B2

公开(公告)日：2010-10-19

申请号：US11221727

申请日：2005-09-09

申请人： Min Wu ,  Hongmei Gou

发明人： Min Wu ,  Hongmei Gou

IPC分类号： G06K9/00

CPC分类号： G06T1/005 ,  G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0063 ,  G06T2201/0065

摘要： A method of concealing data in images imperceptibly alters curves therein, such as through adding a value representing the data to be hidden to each of a number of B-spline control points representing the original curve. The altered control points characterize the imperceptibly altered curve, which replaces the original curve in the image. The altered control points may be later extracted from the image and compared with the original control points to determine the hidden value. Prudent selection of the values altering the control points as well as an iterative alignment-minimization algorithm in the detection process provides protection against numerous techniques for preventing the hidden values from being recovered.

摘要翻译： 隐藏图像中的数据的方法不可察觉地改变其中的曲线，例如通过向表示原始曲线的多个B样条控制点中的每一个添加表示要隐藏的数据的值。 改变的控制点表征了不可察觉地改变的曲线，这取代了图像中的原始曲线。 可以稍后从图像中提取改变的控制点，并与原始控制点进行比较以确定隐藏值。 改变控制点的值的谨慎选择以及检测过程中的迭代对齐最小化算法提供了针对许多防止隐藏值被恢复的技术的保护。

公开(公告)号：US20060056695A1

公开(公告)日：2006-03-16

申请号：US11221727

申请日：2005-09-09

申请人： Min Wu ,  Hongmei Gou

发明人： Min Wu ,  Hongmei Gou

IPC分类号： G06K9/34

CPC分类号： G06T1/005 ,  G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0063 ,  G06T2201/0065

摘要： A method of concealing data in images imperceptibly alters curves therein, such as through adding a value representing the data to be hidden to each of a number of B-spline control points representing the original curve. The altered control points characterize the imperceptibly altered curve, which replaces the original curve in the image. The altered control points may be later extracted from the image and compared with the original control points to determine the hidden value. Prudent selection of the values altering the control points as well as an iterative alignment-minimization algorithm in the detection process provides protection against numerous techniques for preventing the hidden values from being recovered.

摘要翻译： 隐藏图像中的数据的方法不可察觉地改变其中的曲线，例如通过向表示原始曲线的多个B样条控制点中的每一个添加表示要隐藏的数据的值。 改变的控制点表征了不可察觉地改变的曲线，这取代了图像中的原始曲线。 可以稍后从图像中提取改变的控制点，并与原始控制点进行比较以确定隐藏值。 改变控制点的值的谨慎选择以及检测过程中的迭代对齐最小化算法提供了针对许多防止隐藏值被恢复的技术的保护。

公开(公告)号：US20070180537A1

公开(公告)日：2007-08-02

申请号：US11326313

申请日：2006-01-06

申请人： Shan He ,  Min Wu

发明人： Shan He ,  Min Wu

IPC分类号： G06F17/30

CPC分类号： G06F21/10 ,  G06F2221/0737 ,  G06T1/0028 ,  G06T1/005 ,  G06T2201/0063 ,  G06T2201/0065

摘要： To identify participants in collusion directed to altering a digital fingerprint embedded in multimedia content, an ECC based fingerprinting technique establishes a code symbol for each of a plurality of segments of digital data forming the multimedia content. The code symbols are concatenated to form a fingerprint signal, which is subdivided into a plurality of subsegments for each segment in the digital data. The subsegments are permuted and embedded into the digital data. When a suspicious copy of the multimedia content is discovered, the permuted fingerprint signal is extracted from the content and inversely permuted to form a test fingerprint. The identity of one of the colluders is determined by correlation with characteristics of the codeword originally assigned to the user. The determination of identity may be enhanced by the addition of group data embedded as an additional fingerprint in the digital data. Joint consideration of coding and embedding provide benefits over previous fingerprinting techniques.

摘要翻译： 为了识别涉及改变嵌入在多媒体内容中的数字指纹的串通参与者，基于ECC的指纹技术为形成多媒体内容的多个数字数据段中的每一个建立代码符号。 代码符号被级联以形成指纹信号，该指纹信号被细分为数字数据中的每个段的多个子段。 子片段被置换并嵌入到数字数据中。 当发现多媒体内容的可疑副本时，从内容中提取置换的指纹信号并反相置换以形成测试指纹。 通过与最初分配给用户的码字的特性相关来确定一个共谋者的身份。 可以通过在数字数据中添加作为附加指纹嵌入的组数据来增强身份的确定。 联合考虑编码和嵌入提供了优于之前的指纹技术的益处。

公开(公告)号：US07814564B2

公开(公告)日：2010-10-12

申请号：US11326313

申请日：2006-01-06

申请人： Shan He ,  Min Wu

发明人： Shan He ,  Min Wu

IPC分类号： G06F7/04

CPC分类号： G06F21/10 ,  G06F2221/0737 ,  G06T1/0028 ,  G06T1/005 ,  G06T2201/0063 ,  G06T2201/0065

摘要： To identify participants in collusion directed to altering a digital fingerprint embedded in multimedia content, an ECC based fingerprinting technique establishes a code symbol for each of a plurality of segments of digital data forming the multimedia content. The code symbols are concatenated to form a fingerprint signal, which is subdivided into a plurality of subsegments for each segment in the digital data. The subsegments are permuted and embedded into the digital data. When a suspicious copy of the multimedia content is discovered, the permuted fingerprint signal is extracted from the content and inversely permuted to form a test fingerprint. The identity of one of the colluders is determined by correlation with characteristics of the codeword originally assigned to the user. The determination of identity may be enhanced by the addition of group data embedded as an additional fingerprint in the digital data. Joint consideration of coding and embedding provide benefits over previous fingerprinting techniques.

摘要翻译： 为了识别涉及改变嵌入在多媒体内容中的数字指纹的串通参与者，基于ECC的指纹技术为形成多媒体内容的多个数字数据段中的每一个建立代码符号。 代码符号被级联以形成指纹信号，该指纹信号被细分为数字数据中的每个段的多个子段。 子片段被置换并嵌入到数字数据中。 当发现多媒体内容的可疑副本时，从内容中提取置换的指纹信号并反相置换以形成测试指纹。 通过与最初分配给用户的码字的特性相关来确定一个共谋者的身份。 可以通过在数字数据中添加作为附加指纹嵌入的组数据来增强身份的确定。 联合考虑编码和嵌入提供了优于之前的指纹技术的益处。