公开(公告)号：EP3207673A4

公开(公告)日：2018-06-13

申请号：EP15851567

申请日：2015-09-04

申请人： NEC LAB AMERICA INC

发明人： YAMAN FATIH ,  ZHANG SHAOLIANG ,  HUANG YUE-KAI

IPC分类号： H04L25/03 ,  H04B10/80 ,  H04L25/49

CPC分类号： H04L25/03859 ,  H04B10/2507 ,  H04B10/58 ,  H04B10/616 ,  H04L25/03171 ,  H04L25/03343

摘要： A system for optimizing signal quality in an optical communication system is provided including a transmitter for converting digital signals to optical signals, the transmitter including a transmitter digital signal processing chip including a pre-distortion logic and a transmitter look-up table (LUT). A receiver is operatively coupled to the transmitter for receiving and converting the optical signals from the transmitter to digital signals. The receiver includes a receiver digital signal processing chip including a correction logic and a receiver look-up table (LUT). The transmitter LUT is constructed by scaling the receiver LUT by a weight factor and is iteratively updated based on a weighted sum of the receiver LUT.

公开(公告)号：EP3175386A4

公开(公告)日：2018-04-04

申请号：EP15827986

申请日：2015-07-30

申请人： NEC LAB AMERICA INC

发明人： RHEE JUNGHWAN ,  FU YANGCHUN ,  WU ZHENYU ,  ZHANG HUI ,  LI ZHICHUN ,  JIANG GUOFEI

IPC分类号： G06F21/56 ,  G06F21/50 ,  G06F21/52

CPC分类号： G06F21/52 ,  G06F21/554 ,  G06F21/60 ,  G06F2221/033

摘要： Systems and methods for detection and prevention of Return-Oriented-Programming (ROP) attacks in one or more applications, including an attack detection device and a stack inspection device for performing stack inspection to detect ROP gadgets in a stack. The stack inspection includes stack walking from a stack frame at a top of the stack toward a bottom of the stack to detect one or more failure conditions, determining whether a valid stack frame and return code address is present; and determining a failure condition type if no valid stack frame and return code is present, with Type III failure conditions indicating an ROP attack. The ROP attack is contained using a containment device, and the ROP gadgets detected in the stack during the ROP attack are analyzed using an attack analysis device.

公开(公告)号：EP3158701A4

公开(公告)日：2018-03-07

申请号：EP15808947

申请日：2015-06-18

申请人： NEC LAB AMERICA INC

发明人： KHOJASTEPOUR MOHAMMAD ,  SUNDARESAN KARTHIKEYAN

IPC分类号： H04L5/14 ,  H04L25/02 ,  H04L25/08

CPC分类号： H04B7/0634 ,  H04B7/0456 ,  H04B2215/00 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0073 ,  H04L5/143 ,  H04L25/03343 ,  H04L25/03898

摘要： Systems and methods for full-duplex communication in a communications network, including generating a combined channel matrix including two or more channel matrices and determining a null space and a basis for the combined channel matrix. Common, individual, and disjoint vector spaces are determined, and common vector space is determined for each of one or more receiving nodes and each or one or more transmitting nodes, disjoint vector spaces for each of the one or more nodes are determined based on the common vector space for each of the one or more nodes, and individual vector spaces are determined based on the common and the disjoint vector spaces. Signals are mapped at each of the nodes to determine corresponding vector spaces; and interference alignment is performed in common vector spaces and zero forcing in disjoint vector spaces using a hardware processor.

公开(公告)号：EP3130153A4

公开(公告)日：2017-12-27

申请号：EP15776571

申请日：2015-04-10

申请人： NEC LAB AMERICA INC

发明人： HUANG MING-FANG

IPC分类号： H04Q11/00 ,  H04J14/02 ,  H04L12/715 ,  H04L12/721

CPC分类号： H04J14/0212 ,  H04L45/62 ,  H04L45/64 ,  H04Q11/0066 ,  H04Q2011/0077

摘要： A method of optical label swapping implemented by a switch used in a software defined network system that in one embodiment includes providing a 400-Gbit/s payload having a Nyquist shaped carrier in a 75-Ghz bandwidth spacing using a payload generator module controlling at least one first optical laser, and inserting a first optical label adjacent to the payload flow in a remainder of a 100-Ghz bandwidth with a label generator controlling at least one second optical laser. The label generator and the payload generator are controlled by a software defined network (SDN). A package of the payload and the first optical label is transmitted to a receiving node. The optical label can be swapped at the receiving node with a flex grid wavelength selective switch (WSS) controlled by the software defined network.

公开(公告)号：EP3143546A4

公开(公告)日：2017-11-15

申请号：EP15792336

申请日：2015-05-15

申请人： NEC LAB AMERICA INC

发明人： QIAN ZHIYUN ,  WANG JUN ,  LI ZHICHUN ,  WU ZHENYU ,  RHEE JUNGHWAN ,  NING XIA ,  JIANG GUOFEI

IPC分类号： G06F21/50 ,  G06F11/30 ,  G06F21/55 ,  G06N99/00 ,  H04L29/06

CPC分类号： H04L63/1425 ,  G06F11/30 ,  G06F21/50 ,  G06F21/552 ,  G06F21/554 ,  G06N99/005 ,  H04L63/1441

摘要： Methods and systems for process constraint include collecting system call information for a process. It is detected whether the process is idle based on the system call information and then whether the process is repeating using autocorrelation to determine whether the process issues system calls in a periodic fashion. The process is constrained if it is idle or repeating to limit an attack surface presented by the process.

公开(公告)号：EP3123669A4

公开(公告)日：2017-10-18

申请号：EP15770097

申请日：2015-03-24

申请人： NEC LAB AMERICA INC

发明人： ZHANG HUI ,  LUMEZANU CRISTIAN ,  RHEE JUNGHWAN ,  ARORA NIPUN ,  XU QIANG ,  JIANG GUOFEI

IPC分类号： H04L12/26 ,  H04L12/937

CPC分类号： H04L45/02 ,  H04L43/12 ,  H04L45/64 ,  H04L45/70

摘要： A computer implemented method for network monitoring includes providing network packet event characterization and analysis for network monitoring that includes supporting summarization and characterization of network packet traces collected across multiple processing elements of different types in a virtual network, including a trace slicing to organize individual packet events into path-based trace slices, a trace characterization to extract at least 2 types of feature matrix describing those trace slices, and a trace analysis to cluster, rank and query packet traces based on metrics of the feature matrix.

公开(公告)号：EP3085030A4

公开(公告)日：2017-09-06

申请号：EP14873041

申请日：2014-12-17

申请人： NEC LAB AMERICA INC

发明人： ZHANG HUI ,  ARZANI BEHNAZ ,  IVANCIC FRANJO ,  RHEE JUNGHWAN ,  ARORA NIPUN ,  JIANG GUOFEI

IPC分类号： H04L12/701 ,  H04L12/24 ,  H04L12/715 ,  H04L12/717 ,  H04L12/841

CPC分类号： H04L45/42 ,  H04L41/12 ,  H04L41/145 ,  H04L43/0864 ,  H04L43/106 ,  H04L45/00 ,  H04L45/64 ,  H04L47/283

摘要： Methods and systems for finding a packet's routing path in a network includes intercepting control messages sent by a controller to one or more switches in a software defined network (SDN). A state of the SDN at a requested time is emulated and one or more possible routing paths through the emulated SDN is identified by replaying the intercepted control messages to one or more emulated switches in the emulated SDN. The one or more possible routing paths correspond to a requested packet injected into the SDN at the requested time.

摘要翻译： 用于在网络中查找分组的路由路径的方法和系统包括拦截由控制器发送到软件定义网络（SDN）中的一个或多个交换机的控制消息。 仿真SDN在所请求的时间的状态，并且通过将所截取的控制消息重播到仿真的SDN中的一个或多个仿真交换机来识别通过仿真的SDN的一个或多个可能的路由路径。 一个或多个可能的路由路径对应于在请求的时间注入SDN的请求分组。

公开(公告)号：EP3063656A4

公开(公告)日：2017-07-05

申请号：EP14858662

申请日：2014-10-29

申请人： NEC LAB AMERICA INC

发明人： ZHU SHENGHUO ,  LIN YUANQING ,  QIAN QI

IPC分类号： G06F17/00

CPC分类号： G06K9/6201 ,  G06K9/6232 ,  G06K9/6251

公开(公告)号：EP3033860A4

公开(公告)日：2017-03-08

申请号：EP14836042

申请日：2014-08-12

申请人： NEC LAB AMERICA INC

发明人： LUMEZANU CRISTIAN ,  ZANFIS KYRIAKOS ,  JIANG GUOFEI

IPC分类号： H04L12/24 ,  H04L12/26

CPC分类号： H04L43/04 ,  H04L41/046 ,  H04L41/147 ,  H04L43/026

公开(公告)号：EP3036869A4

公开(公告)日：2017-01-18

申请号：EP14837649

申请日：2014-08-22

申请人： NEC LAB AMERICA INC

发明人： KANONAKIS KONSTANTINOS ,  HU JUNQIANG ,  PATEL ANKITKUMAR ,  JI PHILIP NAN ,  WANG TING

IPC分类号： H04L12/28 ,  H04Q11/04

CPC分类号： H04Q11/00 ,  H04L12/40136 ,  H04Q2213/13103 ,  H04Q2213/13292 ,  H04Q2213/13389 ,  Y02D50/10

摘要： Systems and methods for data transport, including receiving one or more signals into a reconfigurable and flexible rate shared rate multi-transponder network architecture, wherein the network architecture includes one or more transponders with multiple line side interfaces and one or more client side interfaces. The transponders are configured to map one or more signals to multiple parallel Virtual Ethernet Links, remove idle characters from the one or more signals, buffer one or more blocks of characters using an intermediate block buffer, activate and deactivate one or more portions of input/output electrical lanes of an Ethernet module, multiplex and demultiplex the one or more signals to and from the input/output electrical lanes to enable sharing of a single optical transceiver by multiple independent signals, and insert blocks of idle characters to enable transmission over a lower rate transmission pipe.