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1. 发明授权

EP2887342B1 Optimized hardware architecture and method for ECC point doubling using jacobian coordinates over short weierstrass curves 有权
标题翻译：优化的硬件体系结构和ECC点加倍方法，使用雅可比坐标在短小的Weierstrass曲线上
公开(公告)号：EP2887342B1
公开(公告)日：2018-04-18
申请号：EP14198913.7
申请日：2014-12-18
申请人： NXP B.V.
发明人： Knezevic, Miroslav , Nikov, Ventzislav
IPC分类号： G09C1/00 , H04L9/30
CPC分类号： H04L9/3066 , G06F7/725 , G09C1/00 , H04L2209/122
摘要： An optimized hardware architecture and method introducing a simple arithmetic processor that allows efficient implementation of an Elliptical Curve Cryptography point doubling algorithm for Jacobian coordinates. The optimized architecture additionally reduces the required storage for intermediate values.

2. 发明公开

EP3089398A1 SECURING A CRYPTOGRAPHIC DEVICE 有权
标题翻译： SICHERUNG EINER KRYPTOGRAPHISCHEN VORRICHTUNG
公开(公告)号：EP3089398A1
公开(公告)日：2016-11-02
申请号：EP15166086.7
申请日：2015-04-30
申请人： NXP B.V.
发明人： Medwed, Marcel , Nikov, Ventzislav , Feldhofer, Martin
IPC分类号： H04L9/00 , H04L9/08 , H04L9/06
CPC分类号： H04L9/002 , G06F7/582 , H04L9/003 , H04L9/0662 , H04L9/0869 , H04L9/0891 , H04L63/0457 , H04L63/08 , H04L63/123
摘要： Methods of securing a cryptographic device against implementation attacks are described. A disclosed method comprises the steps of: generating secret values (324) using a pseudorandom generator (510); providing a key (330), an input (324) having a number of chunks and the secret values to an encryption module (340); indexing the chunks and the secret values (324); processing the input chunk wise by encrypting the secret values (324) indexed by the chunks using the key (330) and the encryption module (340); generating for each chunk a pseudorandom output (330') of the encryption module (340), providing the pseudorandom output as the key (330') when processing the next chunk.; and performing a final transformation on the last pseudorandom output (330 l ) from the previous step by using it as a key to encrypt a fixed plaintext.
摘要翻译：描述了保护加密设备免遭实施攻击的方法。所公开的方法包括以下步骤：使用伪随机发生器（510）产生秘密值（324）; 提供密钥（330），具有多个块的输入（324）和秘密值给加密模块（340）; 索引大块和秘密值（324）; 通过使用密钥（330）和加密模块（340）加密由块索引的秘密值（324）来处理输入块; 为每个块生成加密模块（340）的伪随机输出（330'），在处理下一个块时提供伪随机输出作为密钥（330'）。并且通过使用它作为加密固定明文的密钥，对上一步骤的最后伪随机输出（330l）执行最终变换。

3. 发明公开

EP2996277A1 Securing a crytographic device against implementation attacks 有权
标题翻译： on en en en en en en en en en en en en en en en en en
公开(公告)号：EP2996277A1
公开(公告)日：2016-03-16
申请号：EP14184296.3
申请日：2014-09-10
申请人： NXP B.V.
发明人： Medwed, Marcel , Nikov, Ventzislav , Feldhofer, Martin
IPC分类号： H04L9/00 , H04L9/06
CPC分类号： H04L63/068 , H04L9/003 , H04L9/0618 , H04L63/062 , H04L2209/805
摘要： Methods of securing a cryptographic device against implementation attacks, are described. A disclosed method comprises the steps of obtaining a key (230) from memory of the cryptographic device; providing the key and a constant input (210) to an encryption module (240); deriving an output (250) of encrypted data bits using the encryption module (240); providing the output (250), the key (230) and an input vector (270) to a key update module (260); and using said key update module (260) to modify the key based on at least a part (270 a ) of the input vector (270) to derive an updated key (230 a ). This prevents the value of the key from being derived using the updated key or by using side-channel attacks because the input is constant for all keys. Additionally, by altering the input vector, the updated key is also altered.
摘要翻译：描述了保护加密设备免遭实施攻击的方法。所公开的方法包括从密码装置的存储器获取密钥（230）的步骤; 向加密模块（240）提供密钥和恒定输入（210）; 使用加密模块（240）导出加密数据比特的输出（250）; 向密钥更新模块（260）提供输出（250），密钥（230）和输入向量（270）; 以及使用所述密钥更新模块（260）基于所述输入向量（270）的至少一部分（270a）来修改所述密钥以导出更新密钥（230a）。这样可以防止使用更新的密钥或使用边信道攻击来导出密钥的值，因为所有密钥的输入是不变的。另外，通过改变输入向量，更新的密钥也被改变。

4. 发明授权

EP2996277B1 Securing a crytographic device against implementation attacks 有权
公开(公告)号：EP2996277B1
公开(公告)日：2018-11-14
申请号：EP14184296.3
申请日：2014-09-10
申请人： NXP B.V.
发明人： Medwed, Marcel , Nikov, Ventzislav , Feldhofer, Martin
IPC分类号： H04L9/00 , H04L9/06 , H04L29/06
CPC分类号： H04L63/068 , H04L9/003 , H04L9/0618 , H04L63/062 , H04L2209/805
摘要： Methods of securing a cryptographic device against implementation attacks, are described. A disclosed method comprises the steps of obtaining a key (230) from memory of the cryptographic device; providing the key and a constant input (210) to an encryption module (240); deriving an output (250) of encrypted data bits using the encryption module (240); providing the output (250), the key (230) and an input vector (270) to a key update module (260); and using said key update module (260) to modify the key based on at least a part (270 a ) of the input vector (270) to derive an updated key (230 a ). This prevents the value of the key from being derived using the updated key or by using side-channel attacks because the input is constant for all keys. Additionally, by altering the input vector, the updated key is also altered.

5. 发明授权

EP3089398B1 SECURING A CRYPTOGRAPHIC DEVICE 有权
标题翻译：保护密码设备
公开(公告)号：EP3089398B1
公开(公告)日：2017-10-11
申请号：EP15166086.7
申请日：2015-04-30
申请人： NXP B.V.
发明人： Medwed, Marcel , Nikov, Ventzislav , Feldhofer, Martin
IPC分类号： H04L9/00 , H04L9/08 , H04L9/06 , G06F7/58 , H04L29/06
CPC分类号： H04L9/002 , G06F7/582 , H04L9/003 , H04L9/0662 , H04L9/0869 , H04L9/0891 , H04L63/0457 , H04L63/08 , H04L63/123

6. 发明公开

EP2887206A1 Optimized hardware architecture and method for ECC point doubling using Jacobian coordinates over short Weierstrass curves 有权
标题翻译：优化的硬件架构和方法的Jacobi ECC点加倍坐标短维尔斯特拉斯曲线
公开(公告)号：EP2887206A1
公开(公告)日：2015-06-24
申请号：EP14198456.7
申请日：2014-12-17
申请人： NXP B.V.
发明人： Knezevic, Miroslav , Nikov, Ventzislav
IPC分类号： G06F7/72
CPC分类号： H04L9/3066 , G06F7/725 , G06F7/726
摘要： An optimized hardware architecture and method introducing a simple arithmetic processor that allows efficient implementation of an Elliptical Curve Cryptography point doubling algorithm for Jacobian coordinates. The optimized architecture additionally reduces the required storage for intermediate values to one intermediate value.
摘要翻译：一个优化的硬件体系结构和方法引入一个简单的算术处理器做允许高效实现用于Jacobian坐标系的椭圆曲线加密点倍增的算法。优化的体系结构还减少了对中间值的一个中间值所需的存储。

7. 发明公开

EP2456121A3 Challenge response based enrollment of physical unclonable functions 有权
标题翻译：的使用挑战 - 响应物理，unklonbaren功能登记
公开(公告)号：EP2456121A3
公开(公告)日：2015-04-29
申请号：EP11189269.1
申请日：2011-11-16
申请人： NXP B.V.
发明人： Teuwen, Philippe , Nikov, Ventzislav
IPC分类号： H04L9/32
CPC分类号： H04L9/3278 , H04L9/3242 , H04L9/3271 , H04L9/3273
摘要： Aspects of the present disclosure are directed toward a method that includes a physically-unclonable function (PUF) device that receives a communication that includes a first challenge value, a second challenge value and a remote message authenticity value. The method includes the generation of additional challenge-response pairs in a secure manner. The additional challenge-response pairs are securely communicated between the PUF device and an authenticating server or other device for subsequent use in authentication.

8. 发明授权

EP2348444B1 Data processing apparatus 失效转让
标题翻译：数据处理装置
公开(公告)号：EP2348444B1
公开(公告)日：2014-03-19
申请号：EP09252808.2
申请日：2009-12-16
申请人： NXP B.V.
发明人： Debast, Claude , Peeters, Michaël , Nikov, Ventzislav
IPC分类号： G06F21/55 , H04L29/06 , G07B15/02 , G07B15/06
CPC分类号： H04L63/126 , G01C21/26 , G06F21/52 , G06F21/552 , G06F2221/034 , G07B15/02 , G07B15/06 , H04L63/0876 , H04L63/123 , H04L63/1416

9. 发明授权

EP2290547B1 Method of obfuscating a code 有权
标题翻译：一种用于代码迷惑的方法
公开(公告)号：EP2290547B1
公开(公告)日：2012-12-19
申请号：EP09168753.3
申请日：2009-08-26
申请人： NXP B.V.
发明人： Teuwen, Philippe , Nikov, Ventzislav
IPC分类号： G06F12/14 , G06F21/00
CPC分类号： G06F12/1408 , G06F12/0802 , G06F21/121 , G06F21/14 , G06F2212/1052 , G06F2212/402 , G06F2212/60 , H04L9/0625 , H04L2209/16
摘要： A method of obfuscating a code is provided, wherein the method comprises performing a first level obfuscating technique on a code to generate a first obfuscated code, and performing a second level obfuscating technique on the first obfuscated code. In particular, the code may be a software code or a software module. Furthermore, the first level obfuscating technique and the second obfuscating may be different. In particular, the second level obfuscating technique may perform a deobfuscation.

10. 发明公开

EP4287055A1 APPARATUSES AND METHODS WITH SECURE CONFIGURATION UPDATE 审中-公开
公开(公告)号：EP4287055A1
公开(公告)日：2023-12-06
申请号：EP23175698.2
申请日：2023-05-26
申请人： NXP B.V.
发明人： Medwed, Marcel , Nikov, Ventzislav , Schneider, Tobias
IPC分类号： G06F21/57 , G06F8/65 , G06F11/14
摘要： One example securely updates an integrated circuit to mitigate undesirable modifications and this involves an application circuit accessing an external network while a (e.g., nonvolatile) program memory is write protected; and a reset-boot circuit resetting and booting the application circuit while access to the external network is disabled, and causing an update for the application circuit. In response to an indication that an update is downloaded for installation, the downloaded update is installed in the memory while access to the external network is disabled, and execution of the reset mode is permitted after the update is installed. Also, a retrieval module may download, in response to an indication that an update is not downloaded, an update provided via the external network while the memory is write-protected and thereby permitting execution of the reset mode after the update is downloaded.

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