!!! Overview
[{$pagename}] ([DAA]) is a [Cryptographic Primitive] which enables remote [authentication] of a [Trusted Platform Module] whilst preserving [privacy] of the devices's user.


[{$pagename}] [protocol] has been adopted by the [Trusted Computing Group] ([TCG]) in the latest version of its [Trusted Platform Module] ([TPM]) specification[1] to address [Privacy Considerations]. [ISO/IEC 20008ISO 20008] specifies [{$pagename}], as well, and [Intel Corporation]'s [Enhanced Privacy ID] ([EPID]) 2.0 [implementation] for microprocessors is available for licensing [RAND-Z] along with an [Open Source] [SDK].


[{$pagename}] extends the standard [attestation] capabilities of the [Trusted Platform Module] to allow for [anonymous] [attestations] of [TPM] [state] and to admit [Pseudonyms] that are [cryptographically|Cryptographic] bound to the [Trusted Platform Module]’s internal identity [certificate].


!! [{$pagename}] Limitations
[{$pagename}] employs blind signatures and thus require the appointment of a central [Authoritative Entity], a [trusted|Trust] [Third-party] to issue the [credentials].

[{$pagename}] [Authoritative Entity] [exploits] or [Malicious] or other [Unfortunate events] can seriously damage the reliability of the [credential] system. Moreover, compromise or issuer [Malicious] action or other failure can be particularly difficult to detect in an [anonymous] [credential] systems.


!! More Information
There might be more information for this subject on one of the following:
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* [#1] - [Direct_Anonymous_Attestation|Wikipedia:Direct_Anonymous_Attestation|target='_blank'] - based on information obtained 2018-09-13-