International Business Machines Corporation

Sheng-Tung Hsu

Wei-Hsiang Hsiung

Kuo-Chun Chen

Cheng-Ta Lee

Chih-Hung Chou

Ming-Hsun Wu

Chih-Wen Chao

Ming-Pin Hsueh

Wei-Shiau Suen

Jia-Sian Jhang

Rick M F Wu

Chien Pang Lee

Chun-Shuo Lin

Pei-Chun Yao

KuoChun Chen

Fadly Yahaya

Joey H Y Tseng

Wayne Chou

Preventing Transport Layer Security session man-in-the-middle attacks is provided. A first security digest generated by an endpoint device is compared with a second security digest received from a peer device. It is determined whether a match exists between the first security digest and the second security digest based on the comparison. In response to determining that a match does not exist between the first security digest and the second security digest, a man-in-the-middle attack is detected and a network connection for a Transport Layer Security session is terminated with the peer device.

Transport layer security session man-in-the-middle attack prevention

Aspects of the present invention disclose a method, computer program product, and system for domain name classification. The method includes one or more processors receiving a request for querying a first domain name. The method further includes one or more processors acquiring a first source internet protocol (IP) address and the first domain name from the request. In response to determining the first domain name is not classified, the method further includes one or more processors an access tendency of the first source IP address based on a plurality of classifications of a plurality of domain names queried by the first source IP address. The method further includes one or more processors estimating a first classification of the first domain name based on the access tendency of the first source IP address.

Classification of a domain name

An embodiment of the invention may include a method, computer program product and system for secure authentication within a communication protocol session. The embodiment may include retrieving, by a client computer of the TLS session, a challenge string associated with the TLS session. The embodiment may include generating, by the client computer, a first digest based on the challenge string and authentication information of a user of the client computer. The embodiment may include sending, by the client computer, the first digest to a server of the TLS session. The retrieving, generating and sending, by the client computer, are carried out after the TLS session has been established between the client computer and the server.

Secure authentication in TLS sessions

Optimizing receive side scaling (RSS) key selection is provided. Different weights are assigned to different fields of flow data corresponding to a network connection of a registered client device. A score is generated representing an amount of balanced processor loading for each RSS key corresponding to the registered client device based on the different fields of the flow data with assigned weights. A current RSS key on the registered client device is updated with an optimal RSS key based on the score corresponding to the optimal RSS key representing balanced loading of processors on the registered client device.

Optimizing receive side scaling key selection using flow data

A computer network endpoint is secured to prevent information leak or other compromise by instantiating in memory first, second and third security zones. With respect to an authorized user, the first zone is readable and writable, the second zone is read-only, and the third zone is neither readable nor writable. System information (e.g., applications, libraries, policies, etc.) are deployed into the first zone from the second zone. When sensitive data is generated in the first zone, e.g., when a secure communication session is established using a cryptographic key, the sensitive data is transferred from the first zone to the third zone, wherein it is immune from information leak or other compromise. The sensitive information is transferable from the third zone to one or more external having a need to know that information. Because information does not pass directly from the first security zone to the external systems, the endpoint is secured against information leak or other attack.

Securing an endpoint in a computer network

Establishing Transport Layer Security/Secure Sockets Layer (TLS/SSL) sessions with destination servers for Internet of Things (IoT) devices is provided. A request is sent to establish a TLS/SSL session with a target destination server in a set of destination servers using destination server information related to a particular IoT device in a plurality of IoT devices. A TLS/SSL session is established with the target destination server corresponding to the particular IoT device. TLS/SSL session credential information is received for the particular IoT device from the target destination server. The TLS/SSL session credential information for the particular IoT device is saved in a session credential information table. The TLS/SSL session is suspended with the target destination server corresponding to the particular IoT device.

Quick transport layer security/secure sockets layer connection for internet of things devices

A method for implementing an Internet of Things security appliance is presented. The method may include intercepting a data packet sent from a server to a client computing device. The method may include performing a security check on the data packet using security modules. The method may include determining the data packet is not malicious based on the security check. The method may include determining a shadow tester to test the data packet based on a type associated with the client computing device. The method may include creating a virtualization environment of the client computing device using the shadow tester. The method may include analyzing behaviors associated with the data packet within the virtualization environment using detection modules. The method may include determining the behaviors do not violate a behavior policy associated with the client computing device. The method may include transmitting the data packet to the client computing device.

Internet of Things security appliance

A system, method and computer program product for detecting distributed denial-of-service (DDoS) attacks is provided. Current aggregated flow information for a defined period of time is analyzed. It is determined whether network flow increased above a defined flow threshold value to a second data processing system connected to a network within the defined period of time based on analyzing the current aggregated flow information. In response to determining that the network flow has increased above the defined flow threshold value to the second data processing system connected to the network within the defined period of time, it is determined that the second data processing system is under a DDoS attack.

Distributed denial-of-service attack detection based on shared network flow information

A system and computer program product for preventing abnormal application activity is provided. Packets are retrieved from a packet buffer using packet location information corresponding to information associated with the abnormal application activity in a data processing system. The packets are analyzed to identify content of the network packets causing the abnormal application activity. Network packets containing the content causing the abnormal application activity in the data processing system are blocked.

Retrieving network packets corresponding to detected abnormal application activity

A method for preventing abnormal application activity is provided. Packets are retrieved from a packet buffer using packet location information corresponding to information associated with the abnormal application activity in a data processing system. The packets are analyzed to identify content of the network packets causing the abnormal application activity. Network packets containing the content causing the abnormal application activity in the data processing system are blocked.

Selecting a receive side scaling (RSS) key is provided. It is determined whether a defined time interval expired. In response to determining that the defined time interval has expired, it is determined whether one or more keys in a set of randomly generated candidate RSS keys have a higher packet distribution score than an active RSS key. In response to determining that one or more keys in the set of randomly generated candidate RSS keys have a higher packet distribution score than the active RSS key, an RSS key having a highest packet distribution score is selected from the one or more keys in the set of randomly generated candidate RSS keys that have a higher packet distribution score than the active RSS key. The RSS key having the highest packet distribution score is used to distribute incoming network packets across a plurality of processors.

Real-Time adaptive receive side scaling key selection

Real-time adaptive receive side scaling key selection

A method for monitoring encrypted communication sessions between computing devices includes intercepting messages of a handshaking procedure between a client and a server device, the handshaking procedure establishing an encrypted communication session between the client and server. The method further includes determining, from the messages, a session context for the encrypted session and an identifier associated with the session context. The method further includes storing the session context in a database indexed by the identifier. The method further includes intercepting, subsequent to the storing, second messages of a second handshaking procedure between the client and a second server device, the where second handshaking procedure resumes the encrypted communication session after an interruption. The method additionally includes determining that the second messages includes the identifier associated with the session context, retrieving, from the database, the session context using the identifier, and monitoring the resumed encrypted communication session using the session context.

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Taipei, Taiwan

Sheng-Tung Hsu