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Request for Information (RFI): Verification and Compliance Checking for Natural-Language Network Requirements (FastVacc)

In plain English

DARPA seeks ideas for tools that check whether network configurations meet natural-language security requirements much faster and cheaper. This is a request for information only, with responses due November 13, 2026. Details are in the notice.

Agency: Dept Of Defense · Defense Advanced Research Projects Agency (Darpa)
Notice type: Special Notice
Set-aside: No set-aside (open to all)
NAICS: 541715
Place of performance: Not listed
Posted: Oct 29, 2026
Response due: Nov 13, 2026
Solicitation number: DARPA-SN-27-13

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Description

Modern networks need to be reconfigured quickly in response to mission changes or emerging threats, but checking compliance with security requirements can take months. This creates a window in which adversaries may exploit vulnerabilities introduced by those changes. The Defense Advanced Research Projects Agency (DARPA) Information Processing Techniques Office (IPTO) seeks information on approaches, tools and practices for closing that window by reducing, by 2-3 orders of magnitude, the time and cost of verifiable compliance checking. DARPA envisions a capability that would take as input two items: (a) a requirements document written in natural language and (b) the configurations in a concrete network. In an offline phase, it would reason about the requirements for inconsistency, redundancy and incompleteness, and output consistent, non-redundant and completed requirements. Then, it would check, in near real-time, whether the concrete configurations satisfy all of the requirements. In all cases, its output would be understandable by a human.

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