Akamai Technologies, Inc.

Elisha Ben-Zvi

Eugene (John) Neystadt

Eyal Heiman

Eugene (“John”) Neystadt

Ittay Dror

Jonathan Herzog

Asaf Nadler

Robert D Blumofe

Eugene Neystadt

This document describes among other things, network security systems that incorporate a feedback loop so as to automatically and dynamically adjust the scope of network traffic that is subject to inspection. Risky traffic can be sent for inspection; risky traffic that is demonstrated to have high rate of threats can be outright blocked without further inspection; traffic that is causing errors due to protocol incompatibility or should not be inspected for regulatory or other reasons can be flagged so it bypasses the security inspection system. The system can operate on a domain by domain basis, IP address basis, or otherwise.

Network security analysis system with reinforcement learning for selecting domains to scan

This document describes techniques for rotating keys used to tokenize data stored in a streaming data store where data is stored for a maximum time [W]. In some embodiments, a data layer of such a data store can encrypt arriving original data values twice. The original data value is first encrypted with a first key, producing a first token. The original data value is encrypted with a second key, producing a second token. Each encrypted token can be stored separately in the data store. A field may be associated with two database columns, one holding the value encrypted with the first key and the second holding the value encrypted with the second key. Keys are rotated after time [K], which is at least equal to and preferably longer than [W]. Rotation can involve discarding the older key and generating a new key so that two keys are still used.

Key rotation for sensitive data tokenization

Network security system with enhanced traffic analysis based on feedback loop

It is known in the art to route client traffic to a network security gateway using the domain name system, or DNS. More specifically, a local DNS resolver on a private network may apply security intelligence to client DNS lookup requests, based on the domains that clients are seeking to resolve. If a requested domain represents a known security threat, the client can be blocked or directed to the network security gateway instead of to the desired host. This routing of the client request to the network security gateway can be accomplished by giving the client the IP address of the network security gateway instead of the actual IP address corresponding to the domain name, in response to a given DNS name query from the client. Request routing can be accomplished using other techniques, such as IP layer routing, as well.

Network security system with enhanced traffic analysis based on feedback loop and low-risk domain identification

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Hod Hasharon, Israel

Elisha Ben-Zvi