TrustZone security extension

E72124

ARM architecture extension hardware-based security technology

TrustZone security extension is ARM's hardware-based security technology that creates isolated execution environments to protect sensitive code and data on system-on-chip devices.

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All labels observed (12)

Label	Occurrences
ARM TrustZone	5
TrustZone for ARMv8-M	2
TrustZone security extensions	2
ARM Secure Monitor	1
ARM TrustZone security extensions	1
ARM TrustZone technology	1
ARM TrustZone-M	1
ARMv8-M Security Extension	1
Android StrongBox Keymaster	1
TrustZone for ARMv8-M (on some cores)	1
TrustZone security extension canonical	1
TrustZone security extensions (optional)	1

How this entity was disambiguated

This entity first appeared as the object of triple T576662 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: TrustZone security extension
Context triple: [ARM, hasExtension, TrustZone security extension]

A. Temporal Key Integrity Protocol
Temporal Key Integrity Protocol (TKIP) is a legacy wireless security algorithm designed to enhance WEP encryption in early Wi‑Fi networks by dynamically changing encryption keys.
B. IEEE 802.1AE MACsec standard
The IEEE 802.1AE MACsec standard is a network security protocol that provides data confidentiality, integrity, and origin authenticity for Ethernet traffic at the media access control (MAC) layer.
C. The Essence of Security
"The Essence of Security" is a book by former U.S. Secretary of Defense Robert McNamara that outlines his views on national security, nuclear strategy, and defense policy during the Cold War.
D. Transparent Data Encryption
Transparent Data Encryption is a database security feature that encrypts data at rest by automatically encrypting database files and backups to protect against unauthorized access to stored data.
E. Mopria
Mopria is a universal mobile printing standard that enables seamless, driverless printing from devices like smartphones, tablets, and Chromebooks to compatible printers.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: TrustZone security extension
Target entity description: TrustZone security extension is ARM's hardware-based security technology that creates isolated execution environments to protect sensitive code and data on system-on-chip devices.

A. Temporal Key Integrity Protocol
Temporal Key Integrity Protocol (TKIP) is a legacy wireless security algorithm designed to enhance WEP encryption in early Wi‑Fi networks by dynamically changing encryption keys.
B. IEEE 802.1AE MACsec standard
The IEEE 802.1AE MACsec standard is a network security protocol that provides data confidentiality, integrity, and origin authenticity for Ethernet traffic at the media access control (MAC) layer.
C. The Essence of Security
"The Essence of Security" is a book by former U.S. Secretary of Defense Robert McNamara that outlines his views on national security, nuclear strategy, and defense policy during the Cold War.
D. Transparent Data Encryption
Transparent Data Encryption is a database security feature that encrypts data at rest by automatically encrypting database files and backups to protect against unauthorized access to stored data.
E. Mopria
Mopria is a universal mobile printing standard that enables seamless, driverless printing from devices like smartphones, tablets, and Chromebooks to compatible printers.
F. None of above. chosen

Statements (51)

Predicate	Object
instanceOf	ARM architecture extension ⓘ hardware-based security technology ⓘ
alsoKnownAs	ARM TrustZone ⓘ linked to: TrustZone security extension
appliesTo	ARM-based processors ⓘ system-on-chip devices ⓘ
basedOn	ARM processor privilege and security states ⓘ
componentOf	ARM security architecture ⓘ
controls	access to memory ⓘ access to peripherals ⓘ access to system resources ⓘ
developer	Arm Limited ⓘ linked to: Arm Ltd.
enforces	secure and non-secure address spaces ⓘ security boundaries between software components ⓘ
introducedIn	ARMv6 architecture family ⓘ
introduces	normal world ⓘ secure world ⓘ
provides	hardware-enforced isolation ⓘ isolated execution environment ⓘ
purpose	enable secure services on general-purpose systems ⓘ protect sensitive code ⓘ protect sensitive data ⓘ support trusted execution ⓘ
relatedTo	ARM Secure Monitor ⓘ linked to: TrustZone security extension GlobalPlatform TEE specifications ⓘ linked to: GlobalPlatform Trusted Execution Environment ⓘ
requires	hardware support in CPU ⓘ software support in firmware ⓘ software support in operating system ⓘ support in memory controller ⓘ support in system interconnect ⓘ
securityProperty	hardware isolation between secure and non-secure worlds ⓘ reduced trusted computing base for secure applications ⓘ resistance to software attacks from normal world ⓘ
supportedIn	ARMv7-A architecture ⓘ ARMv8-A architecture ⓘ linked to: ARMv8-A ARMv9-A architecture ⓘ linked to: ARMv9-A
supports	device attestation ⓘ digital rights management ⓘ secure boot ⓘ secure key storage ⓘ secure payment applications ⓘ trusted execution environment ⓘ
usedBy	Android device security architectures ⓘ Qualcomm Secure Execution Environment ⓘ Samsung Knox ⓘ
usedIn	Internet of Things devices ⓘ automotive systems ⓘ embedded systems ⓘ mobile devices ⓘ networking equipment ⓘ set-top boxes ⓘ

How these facts were elicited

Referenced by (18)

Full triples — surface form annotated when it differs from this entity's canonical label.

ARM → hasExtension → TrustZone security extension ⓘ

Titan M → supportsStandard → Android StrongBox Keymaster ⓘ

subject linked to: Titan M security chip