DigitalHazMat Assertion

DigitalHazMat Assertion

Chief Information Officer

IC Technical Specifications

DigitalHazMat Assertion


This XML Data Encoding Specification for DigitalHazMat Assertion (DHZM.XML) defines detailed implementation guidance for using XML to encode DHZM data. This specification defines the XML elements and attributes, associated structures and relationships, mandatory and cardinality requirements, and permissible values for representing DHZM data assertion concepts using XML within the use of a Trusted Data Format (TDF) Object.


The IC Chief Information Officer maintains this specification via the Data Standards Coordination Activity (DSCA) and Common Metadata Standards Tiger Team (CMSTT).


Technical Specification Downloads


Latest Approved Public Release:


Mission Requirements


This specification is designed to fulfill a number of requirements in support of the transformational efforts of the Intelligence Community (IC). These requirements include:

  • The need for a shared common technique to securely encapsulate, obfuscate and transport potentially malicious artifacts from one network to another.
  • The need to normalize metadata to facilitate communication between groups (e.g., government, commercial industry) with regards to digital hazmat provenance and analysis (e.g., isolated environments for triage, classified environments for deep analysis, multiple assertions for group analysis).