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What is Hardware bill of materials (HBOM)?

A list of the chips and components that make up a device, with their manufacturers and part numbers, the versions of firmware they carry and so on. When a vulnerability is found in a chip or counterfeits are discovered in circulation, it is used to identify quickly which products and devices are affected. Together with the SBOM, the list of software components, it is used to manage supply-chain risk.

Japanese name: HBOM(ハードウェア部品表)

Hardware bill of materials (HBOM) appears in 1 practice question across 1 topic, including Hardware Security: Advanced Topics and Trends.

Field: Hardware Security: Advanced Topics and Trends

Try it: questions about Hardware bill of materials (HBOM)

Which correctly describes a hardware bill of materials (HBOM)?

  1. AA list of the chips and components in a device, their manufacturers and part numbers, firmware versions and so on, used to investigate the impact of vulnerabilities and counterfeits
  2. BA list of the power consumption measured for each component of a device, used to estimate the battery life of battery-powered devices and to study heat generation
  3. CA table listing the license terms and fees for each piece of software in a device, used in calculations when setting the product price
Show answer and explanation

Answer: A. A list of the chips and components in a device, their manufacturers and part numbers, firmware versions and so on, used to investigate the impact of vulnerabilities and counterfeits

Whereas a list of software components (such as libraries) is called an SBOM, an HBOM is a list summarizing the hardware configuration of a device. When a vulnerability is found in a chip or counterfeits are found in circulation, an HBOM makes it possible to find quickly which devices of which products are affected. With the US CISA publishing an HBOM framework in 2023, among other moves, it is being developed as a means of managing supply-chain risk. It is important to manage items on the boundary between hardware and software, such as firmware, as well.

Hardware bill of materials (HBOM) in the explanations

Questions that mention Hardware bill of materials (HBOM) (1)

  1. Which correctly describes a hardware bill of materials (HBOM)?

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Related terms

SBOM (software bill of materials) Arm CCA (Confidential Compute Architecture) CHERI Confidential computing Control-flow integrity DICE (Device Identifier Composition Engine) FIPS 140-3 Laser fault injection Logic locking Memory Tagging Extension (MTE)

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