Managing a segmentation policy for workloads in a secure enclave

Patent metadata

Field	Value
Publication number	US-12568176-B2
Application number	US-202418409729-A
Country	US
Kind code	B2
Filing date	Jan 10, 2024
Priority date	Jan 28, 2020
Publication date	Mar 3, 2026
Grant date	Mar 3, 2026

Abstract

A policy management server manages a segmentation policy and automatically configures an enclave protection device consistently with the segmentation policy so that that the segmentation policy can be enforced with respect to workloads within a secure enclave protected by the enclave protection device. The policy management server identifies protected workloads that are members of a secure enclave and external workloads that are external to the secure enclave. The policy management server identifies cross-boundary rules of the segmentation policy affecting traffic between the protected workloads and external workloads. The policy management server generates and distributes a configuration of the enclave protection device to enable enforcement of the cross-boundary rules pertaining to traffic passing through the enclave protection device.

First claim

The invention claimed is:

1 . A method comprising:
generating an enclave protection rule that permits traffic between a first workload group identified by a first group identifier and a second workload group identified by a second group identifier that meets specified traffic criteria; generating membership information specifying first workload identifiers for first workloads in the first workload group and second workload identifiers for second workloads in the second workload group; generating, based on the enclave protection rule and membership information, a configuration for an enclave protection device; detecting a change in the first workloads in the first workload group; and transmitting updated membership information to the enclave protection device reflecting the change.

2 . The method of claim 1 , wherein the updated membership information is transmitted to the enclave protection device without transmitting the enclave protection rule.

3 . The method of claim 1 , wherein the specified traffic criteria comprises at least one of: a service, a port, or a protocol.

4 . The method of claim 1 , wherein the first workload identifiers and second workload identifiers are internet protocol (IP) addresses.

5 . The method of claim 1 , wherein generating the configuration for the enclave protection device comprises:
identifying that the enclave protection rule is a duplicate of a different enclave protection rule; combining the duplicate rules into a combined rule; and replacing the enclave protection rule and the different enclave protection rule with the combined rule, the configuration for the enclave protection device being based on the combined rule.

6 . The method of claim 5 , wherein the enclave protection rule and different enclave protection rule share a common set of services, ports, and protocols.

7 . The method of claim 1 , wherein detecting the change in the first workloads in the first workload group comprises detecting that at least one workload in the first workload group is re-assigned to a different workload group.

8 . The method of claim 1 , wherein detecting the change in the first workloads in the first workload group comprises detecting that at least one workload in the first workload group comes online or goes offline.

9 . A non-transitory computer-readable storage medium storing instructions for managing a segmentation policy, the instructions, when executed by a computing system, causing the computing system to perform operations comprising:
generating an enclave protection rule that permits traffic between a first workload group identified by a first group identifier and a second workload group identified by a second group identifier that meets specified traffic criteria; generating membership information specifying first workload identifiers for first workloads in the first workload group and second workload identifiers for second workloads in the second workload group; generating, based on the enclave protection rule and membership information, a configuration for an enclave protection device; detecting a change in the first workloads in the first workload group; and transmitting updated membership information to the enclave protection device reflecting the change.

10 . The non-transitory computer-readable storage medium of claim 9 , wherein the updated membership information is transmitted to the enclave protection device without transmitting the enclave protection rule.

11 . The non-transitory computer-readable storage medium of claim 9 , wherein the specified traffic criteria comprises at least one of: a service, a port, or a protocol.

12 . The non-transitory computer-readable storage medium of claim 9 , wherein the first workload identifiers and second workload identifiers are internet protocol (IP) addresses.

13 . The non-transitory computer-readable storage medium of claim 9 , wherein generating the configuration for the enclave protection device comprises:
identifying that the enclave protection rule is a duplicate of a different enclave protection rule; combining the duplicate rules into a combined rule; and replacing the enclave protection rule and the different enclave protection rule with the combined rule, the configuration for the enclave protection device being based on the combined rule.

14 . The non-transitory computer-readable storage medium of claim 13 , wherein the enclave protection rule and different enclave protection rule share a common set of services, ports, and protocols.

15 . The non-transitory computer-readable storage medium of claim 9 , wherein detecting the change in the first workloads in the first workload group comprises detecting that at least one workload in the first workload group is re-assigned to a different workload group.

16 . The non-transitory computer-readable storage medium of claim 9 , wherein detecting the change in the first workloads in the first workload group comprises detecting that at least one workload in the first workload group goes offline or comes online.

17 . A computer system comprising:
one or more processors; and a non-transitory computer-readable storage medium storing instructions for managing a segmentation policy, the instructions when executed by the one or more processors causing the computer system to perform steps including:
generating an enclave protection rule that permits traffic between a first workload group identified by a first group identifier and a second workload group identified by a second group identifier that meets specified traffic criteria;
generating membership information specifying first workload identifiers for first workloads in the first workload group and second workload identifiers for second workloads in the second workload group;
generating, based on the enclave protection rule and membership information, a configuration for an enclave protection device;
detecting a change in the first workloads in the first workload group; and
transmitting updated membership information to the enclave protection device reflecting the change.

18 . The computer system of claim 17 , wherein the updated membership information is transmitted to the enclave protection device without transmitting the enclave protection rule.

19 . The computer system of claim 17 , wherein generating the configuration for the enclave protection device comprises:
identifying that the enclave protection rule is a duplicate of a different enclave protection rule; combining the duplicate rules into a combined rule; and replacing the enclave protection rule and the different enclave protection rule with the combined rule, the configuration for the enclave protection device being based on the combined rule.

20 . The computer system of claim 17 , wherein detecting the change in the first workloads in the first workload group comprises detecting that at least one workload in the first workload group comes online, goes offline, or is re-assigned to a different workload group.

Assignees

• Illumio Inc

Inventors

• Francis George Jeffrey
• Glenn Matthew Kirby
• Lepcha Jalandip
• Kirner Paul James

Classifications

• H04L47/20

  Traffic policing · CPC title

• H04L63/0263

  Rule management · CPC title

• H04L63/20

  for managing network security; network security policies in general (filtering policies H04L63/0227) · CPC title

• H04L12/1407

  Policy-and-charging control [PCC] architecture · CPC title

• H04L41/082

  the condition being updates or upgrades of network functionality · CPC title