Kddi Corporation

Telcordia Technologies, Inc.

Vencore Labs, Inc.

Ayumu Kubota

Seiichiro Mizoguchi

Keisuke Takemori

Abhrajit Ghosh

Hideaki Kawabata

Yukiko Sawaya

Akira Yamada

Akshay Vashist

Alexander Poylisher

Aditya Naidu

Ravichander Vaidyanathan

Yitzchak Gottlieb

Ritu Chadha

Yutaka Miyake

Angelo Sapello

C Jason Chiang

Takashi Matsunaka

An in-vehicle computer generates a message authentication code about its own log using its own signature key and thereby transmits a log annotated with its message authentication code to a vehicle information collection device. The vehicle information collection device generates the signature key of the in-vehicle computer, verifies the message authentication code, which is included in the log annotated with its message authentication code received from the in-vehicle computer, using generated signature key, and thereby stores the log relating to the successfully verified message authentication code on storage media.

Vehicle information collection system, vehicle-mounted computer, vehicle information collection device, vehicle information collection method, and computer program

A communication system is provided that allows communication between a vehicle and a server device. This communication system includes: the server device; a first arithmetic processing device installed in the vehicle; and a second arithmetic processing device that is a secure element and is installed in the vehicle. The second arithmetic processing device includes: a vehicle key storage unit that stores a first key and a second key; a vehicle authentication processing unit that performs authentication with the server device using the first key; and a vehicle key transmission/reception unit that transmits or receives a third key to or from the server device by encryption communication which uses the second key. The first arithmetic processing device includes a vehicle communication unit that performs encryption communication with the server device using the third key.

Communication system, vehicle, server device, communication method, and computer program

A data provision system includes a data provision device and a data security device installed in a vehicle. The data provision device includes a vehicle interface configured to transmit data to and receive data from the vehicle; and an cryptographic processing unit configured to generate an electronic signature of application data to be applied to an in-vehicle computer installed in the vehicle by using a secret key of the data provision device, wherein application data with the electronic signature, which is obtained by attaching the electronic signature to the application data, is transmitted to the vehicle through the vehicle interface. The data security device includes an interface unit configured to transmit data to and receive data from a device outside the data security device; and an cryptographic processing unit configured to verify the electronic signature of the application data with the electronic signature received from the data provision device.

Data provision system, data security device, data provision method, and computer program

Provided are a key generation device and an in-vehicle computer which is installed in a vehicle. The key generation device includes a vehicle interface, a key generation unit that generates first and second keys, a cryptographic processing unit that encrypts the first key with an initial key to generate first encrypted data and encrypts the second key with the first key to generate second encrypted data, an expected value calculation unit that calculates an expected value of stored data using the second key, and a verification unit that verifies a received measured value on the basis of the expected value, and the key generation device transmits the first and second encrypted data to the vehicle. The in-vehicle computer includes an interface unit, a cryptographic processing unit that decrypts the received first encrypted data, and decrypts the received second encrypted data, and a measured value calculation unit.

Management system, key generation device, in-vehicle computer, management method, and computer program

A communication network system, in which a transmission node for transmitting a message is connected to a reception node for receiving the message, is configured to periodically transmit a count-value notification message to notify a count value, which is used to generate and check a message authentication code for the message, to the transmission node and the reception node.

Communication network system and count-value sharing method using count-value notification node with transmission node and reception node

A reuse system includes: a key generation device; an in-vehicle computer that is detached from a first vehicle and is installed in a second vehicle; and a data security device that is installed in the second vehicle. The key generation device includes a vehicle interface, and a key generation unit that generates a first key that is the same as a key stored in the in-vehicle computer from a time when being installed in the first vehicle by using an in-vehicle computer identifier, and a master key that is common to the first and second vehicles, and transmits the first key to the second vehicle. The data security device includes a first interface unit, and a first cryptographic processing unit that encrypts first data, which is applied to the in-vehicle computer, with the first key to generate encrypted first data, and transmits the encrypted first data to the in-vehicle computer.

Reuse system, key generation device, data security device, in-vehicle computer, reuse method, and computer program

A software distribution processing device stores a common key for each ECU and a verification key for an electronic signature of software updating data, verifies an electronic signature of the updating data received from management server equipment by use of the verification key, attaches an electronic signature using the common key for each ECU to the updating data succeeded in verification of the electronic signature, and then transmits to each ECU the updating data attached with the electronic signature using the common key for each ECU.

Software distribution processing device, software distribution processing method, and vehicle

A data provision system includes a data provision device and a data security device installed in a vehicle. The data provision device includes a vehicle interface configured to transmit data to and receive data from the vehicle and an expected value calculation unit configured to calculate an expected value of application data to be applied to an in-vehicle computer installed in the vehicle. The application data and the expected value are transmitted to the vehicle through the vehicle interface. The data security device includes an interface unit configured to transmit data to and receive data from a device outside the data security device and a measurement unit configured to calculate a measurement value of the application data received from the data provision device through the interface unit and verify the measurement value on the basis of the expected value received from the data provision device through the interface unit.

In a secure hardware extension (SHE)-B, an initial key is set to a KEY_N key usable in a verification process and a generation process for a message authentication code. In an SHE-A, a master key is set to a KEY_N key usable in the verification process and the generation process for the message authentication code, the master key being used together with an identifier of an authenticated electronic control unit (ECU) for generating the message authentication code to be used as the initial key. A central processing unit (CPU) causes the message authentication code for the identifier of the authenticated ECU to be generated using the master key through the SHE-A and executes a process of authenticating validity of the authenticated ECU by using the generated message authentication code.

In-vehicle computer system, vehicle, key generation device, management method, key generation method, and computer program

A computer system, method, and computer program product for mitigating TOCTOU attacks, which includes: as processor requesting measurements representing operation of a first process on a host that is untrusted and based on the requesting, obtaining the measurements, which include a checksum that is a result of a second process executing checksum code to verify at least one last branch record on the host. A processor also determined, based on the measurements, whether the first process was compromised.

System and Method for mitigating TOC/TOU attacks in a cloud computing enviroment

An apparatus and method predict and detect network attacks by using a diverse set of indicators to measure aspects of the traffic and by encoding traffic characteristics using these indicators of potential attacks or anomalous behavior. The set of indicators is analyzed by supervised learning to automatically learn a decision rule which examines the temporal patterns in the coded values of the set of indicators to accurately detect and predict network attacks. The rules automatically evolve in response to new attacks as the system updates its rules periodically by analyzing new data and feedback signals about attacks associated with that data. To assist human operators, the system also provides human interpretable explanations of detection and prediction rules by pointing to indicators whose values contribute to a decision that there is an existing network attack or an imminent network attack. When such indictors are detected, an operator can take remediation actions.

System and method for correlating historical attacks with diverse indicators to generate indicator profiles for detecting and predicting future network attacks

A system and a method for detecting anomalous attacks in Internet network flow operate by counting a number of Internet traffic messages that are detected as anomalous attacks to provide a count; computing a running average of the number of messages that are detected as anomalous attacks; and comparing the count to the running average to provide an anomalous attack alarm if the count is greater than a multiple of the running average. The attacks can include at least one of spoofing attacks or denial of service attacks. A computer readable storage medium stores instructions of a computer program, which when executed by a computer system, results in performance of steps of the method.

System and method for real-time reporting of anomalous internet protocol attacks

An inventive system and method for creating source profiles to detect spoofed traffic comprises obtaining a routing path for data to traverse nodes using traffic profiles, each routing path comprising at least a target AS, initializing one or more AS sets with last hop ASes, enhancing the AS sets by connecting the AS sets to routers, for each enhanced AS set, filtering observed traffic flows, and using the filtered flows to associate enhanced AS sets with network monitoring points to create the source profiles. In one aspect, filtering flows comprise TCP session filtering and/or destination bogon filtering. In one aspect, the routers are border gateway protocol routers. In one aspect, the last hop ASes are one hop away from the target AS.

System and method for creating BGP route-based network traffic profiles to detect spoofed traffic

A method, an apparatus and a program for detecting spoofed Internet Protocol (IP) traffic directed to a network having a plurality of autonomous systems (AS) is provided. The method comprises receiving an incoming packet through an AS, the incoming packet containing a source IP address and a destination IP address, acquiring a corresponding source and destination IP address prefixes, converting the corresponding source and destination IP address prefixes into a source AS number and a destination AS number, determining if the incoming packet arrived from an unexpected source based upon the corresponding destination IP address prefix and the converted source and destination AS number using an unexpected pair tuple table generated from network routing information and generating an alert indicating that the incoming packet is not allowed to enter the network.

Method, apparatus and program for detecting spoofed network traffic

A system and method for spammer host detection from network flow data profiles comprises constructing one or more cluster profiles and detecting spammer hosts. Construction cluster profiles comprises observing network flow data from one or more hosts; for each host, representing the network flow data associated with the host as a multidimensional vector; clustering the vectors of the hosts into the plurality of cluster profiles; annotating each cluster profile using at least one of black lists and white lists; and calculating a confidence in each cluster profile annotation. Detecting spammer hosts comprises observing the network flow data from a new host; representing the network flow data associated with the new host as a multidimensional vector, and placing the new multidimensional vector of the new host into one cluster profile of the one or more cluster profiles.

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Tokyo, Japan

Ayumu Kubota