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1.发明授权公开(公告)号：US08976960B2
公开(公告)日：2015-03-10
申请号：US13437687
申请日：2012-04-02
CPC分类号： H04L9/08 , G06F21/14 , H04L9/002 , H04L9/0631 , H04L9/30 , H04L2209/16
摘要： A method and an apparatus that generate a plurality of elements randomly as a split representation of an input used to provide an output data cryptographically representing an input data are described. The input may correspond to a result of a combination operation on the elements. Cryptographic operations may be performed on the input data and the elements to generate a plurality of data elements without providing data correlated with the key. The combination operation may be performed on the data elements for the output data.
摘要翻译： 描述了随机地生成多个元素作为用于提供密码地表示输入数据的输出数据的输入的分割表示的方法和装置。 输入可以对应于元素上的组合操作的结果。 可以对输入数据和元素执行密码操作以生成多个数据元素，而不提供与密钥相关的数据。 可以对输出数据的数据元素执行组合操作。
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公开(公告)号：US08862896B2
公开(公告)日：2014-10-14
申请号：US12961374
申请日：2010-12-06
CPC分类号： H04L9/08 , H04L9/0861 , H04L2209/04
摘要： In the data security field, a data protection process embodied in a computer system or computing device or equivalent and which securely descrambles protected (scrambled) data. The process descrambles the data using a dynamic process employing a set of multi-level trees of deterministic functions to generate a descrambling mask value and recover the descrambled message.
摘要翻译： 在数据安全领域中，包含在计算机系统或计算设备或等同物中并且安全地解扰受保护（加扰）数据的数据保护过程。 该过程使用采用一组确定性函数的多级树的动态过程来解扰数据，以产生解扰掩码值并恢复解扰消息。
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3.发明授权Performing boolean logic operations using arithmetic operations by code obfuscation 有权使用代码混淆的算术运算执行布尔逻辑运算公开(公告)号：US08707053B2
公开(公告)日：2014-04-22
申请号：US13024258
申请日：2011-02-09
IPC分类号： G06F12/14
CPC分类号： G06F21/14
摘要： Method and apparatus for obfuscating computer software code, to protect against reverse-engineering of the code. The obfuscation here is of the part of the code that performs a Boolean logic operation such as an exclusive OR on two (or more) data variables. In the obfuscated code, each of the two variables is first modified by applying to it a function which deconstructs the value of each of the variables, and then the exclusive OR operation is replaced by an arithmetic operation such as addition, subtraction, or multiplication, which is performed on the two deconstructed variables. The non-obfuscated result is recovered by applying a third function to the value generated by the arithmetic operation. This obfuscation is typically carried out by suitably annotating (modifying) the original source code.
摘要翻译： 用于模糊计算机软件代码的方法和装置，以防止代码的逆向工程化。 这里的混淆是执行布尔逻辑运算的代码的一部分，例如两个（或多个）数据变量上的异或运算。 在混淆代码中，首先通过对两个变量中的每一个进行修改来解构每个变量的值，然后通过诸如加法，减法或乘法的算术运算来代替异或运算， 这是对两个解构变量进行的。 通过对由算术运算产生的值应用第三函数来恢复未混淆的结果。 这种混淆通常通过适当地注释（修改）原始源代码来执行。
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公开(公告)号：US08661549B2
公开(公告)日：2014-02-25
申请号：US13411099
申请日：2012-03-02
CPC分类号： G06F21/10 , G06F8/30 , G06F21/14 , G11B20/00086 , G11B20/0021
摘要： First source code of a computer program having a plurality of lines of instructions is received. An obfuscation process is performed on the first source code, including at least two of a shuffling operation, a fertilizing operation, an aggregating operation, and a neutralizing operation. Second source code is generated based on the obfuscation process, where the second source code, when executed by a processor, produces an identical result as the first source code.
摘要翻译： 接收具有多行指令的计算机程序的第一源代码。 对第一源代码执行混淆处理，包括混洗操作，施肥操作，聚合操作和中和操作中的至少两个。 基于模糊处理产生第二源代码，其中第二源代码在由处理器执行时产生与第一源代码相同的结果。
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公开(公告)号：US08553878B2
公开(公告)日：2013-10-08
申请号：US12760474
申请日：2010-04-14
CPC分类号： H04L9/3013 , H04L9/3066 , H04L2209/16
摘要： An asymmetric (dual key) data obfuscation process, based on the well known ElGamal cryptosystem algorithm, and which uses multiplicative cyclic groups to transform (obfuscate) digital data for security purposes. In the present system the data need not be a member of the cyclic group, unlike in the ElGamal cryptosystem algorithm. Also, any one of several additional mathematical data transformations are further applied to the transformed data, thereby enhancing security of the transformed data.
摘要翻译： 基于众所周知的ElGamal密码系统算法的非对称（双密钥）数据混淆处理，为了安全起见，使用乘法循环组来转换（混淆）数字数据。 在本系统中，与ElGamal密码系统算法不同，数据不需要是循环组的成员。 而且，数字附加数学变换中的任何一个进一步应用于变换后的数据，从而提高变换数据的安全性。
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6.发明申请公开(公告)号：US20130259226A1
公开(公告)日：2013-10-03
申请号：US13437687
申请日：2012-04-02
IPC分类号： G06F21/24
CPC分类号： H04L9/08 , G06F21/14 , H04L9/002 , H04L9/0631 , H04L9/30 , H04L2209/16
摘要： A method and an apparatus that generate a plurality of elements randomly as a split representation of an input used to provide an output data cryptographically representing an input data are described. The input may correspond to a result of a combination operation on the elements. Cryptographic operations may be performed on the input data and the elements to generate a plurality of data elements without providing data correlated with the key. The combination operation may be performed on the data elements for the output data.
摘要翻译： 描述了随机生成多个元素作为用于提供密码地表示输入数据的输出数据的输入的分割表示的方法和装置。 输入可以对应于元素上的组合操作的结果。 可以对输入数据和元素执行密码操作以生成多个数据元素，而不提供与密钥相关的数据。 可以对输出数据的数据元素执行组合操作。
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公开(公告)号：US20130232578A1
公开(公告)日：2013-09-05
申请号：US13411099
申请日：2012-03-02
CPC分类号： G06F21/10 , G06F8/30 , G06F21/14 , G11B20/00086 , G11B20/0021
摘要： First source code of a computer program having a plurality of lines of instructions is received. An obfuscation process is performed on the first source code, including at least two of a shuffling operation, a fertilizing operation, an aggregating operation, and a neutralizing operation. Second source code is generated based on the obfuscation process, where the second source code, when executed by a processor, produces an identical result as the first source code.
摘要翻译： 接收具有多行指令的计算机程序的第一源代码。 对第一源代码执行混淆处理，包括混洗操作，施肥操作，聚合操作和中和操作中的至少两个。 基于模糊处理产生第二源代码，其中第二源代码在由处理器执行时产生与第一源代码相同的结果。
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8.发明授权公开(公告)号：US08386803B2
公开(公告)日：2013-02-26
申请号：US12621153
申请日：2009-11-18
CPC分类号： G06F21/14 , G06F8/51 , H04L9/002 , H04L9/3013 , H04L2209/046 , H04L2209/08 , H04L2209/16
摘要： Disclosed herein are systems, computer-implemented methods, and computer-readable storage media for obfuscating data based on a discrete logarithm. A system practicing the method identifies a clear value in source code, replaces the clear value in the source code with a transformed value based on the clear value and a discrete logarithm, and updates portions of the source code that refer to the clear value such that interactions with the transformed value provide a same result as interactions with the clear value. This discrete logarithm approach can be implemented in three variations. The first variation obfuscates some or all of the clear values in loops. The second variation obfuscates data in a process. The third variation obfuscates data pointers, including tables and arrays. The third variation also preserves the ability to use pointer arithmetic.
摘要翻译： 本文公开的是基于离散对数来混淆数据的系统，计算机实现的方法和计算机可读存储介质。 实施该方法的系统识别源代码中的明确值，基于清除值和离散对数，用源代码替换变换值，并更新引用清除值的源代码部分，使得 与变换值的交互提供与清除值的交互相同的结果。 这种离散对数方法可以在三个变体中实现。 第一个变体模糊了循环中的一些或全部清除值。 第二个变体在一个过程中模糊数据。 第三个变体模糊数据指针，包括表和数组。 第三个变体也保留了使用指针算术的能力。
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公开(公告)号：US08380991B2
公开(公告)日：2013-02-19
申请号：US12433757
申请日：2009-04-30
IPC分类号： H04L29/06
CPC分类号： H04L9/3236
摘要： In the field of computer data security, a hash process which is typically keyless and embodied in a computing apparatus is highly secure in terms of being resistant to attack. The hash process uses computer code (software) polymorphism, wherein computation of the hash value for a given message is partly dependent on the content (data) of the message. Hence the computer code changes dynamically while computing each hash value.
摘要翻译： 在计算机数据安全领域，通常无钥匙和体现在计算设备中的散列过程在抵御攻击方面是高度安全的。 散列过程使用计算机代码（软件）多态，其中给定消息的散列值的计算部分地取决于消息的内容（数据）。 因此，计算机代码在计算每个散列值时动态变化。
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10.发明申请SECURING IMPLEMENTATION OF A CRYPTOGRAPHIC PROCESS HAVING FIXED OR DYNAMIC KEYS 有权保护具有固定或动态键的克隆过程的实施公开(公告)号：US20120179919A1
公开(公告)日：2012-07-12
申请号：US12987931
申请日：2011-01-10
IPC分类号： G06F12/14
CPC分类号： G06F21/602 , G06F21/72 , H04L9/0631 , H04L2209/046 , H04L2209/16 , H04L2209/24
摘要： In the field of computer enabled cryptography, such as a keyed block cipher having a plurality of rounds, the cipher is hardened against attack by protecting the round keys by (1) combining several cipher operations using a pair of sub-keys (round keys) into one table look-up, or (2) a key masking process which obscures the round keys by providing a masked version of the key operations for carrying out encryption or decryption using the cipher. This approach is especially advantageous in an insecure “White Box” environment where an attacker has full access to execution of the cipher algorithm, including the algorithm's internal state during its execution.
摘要翻译： 在诸如具有多个回合的密钥分组密码的计算机启用密码学领域中，通过（1）使用一对子密钥（循环密钥）组合若干密码操作来保护循环密钥来加密密码， 进入一个表查找，或者（2）通过提供用于使用密码进行加密或解密的密钥操作的掩蔽版本来掩盖轮密钥的密钥掩蔽处理。 这种方法在不安全的“白盒”环境中特别有利，攻击者可以完全访问密码算法的执行，包括算法的执行过程中的内部状态。
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