W3C home > Mailing lists > Public > public-webauthn@w3.org > October 2017

[webauthn] Per TCG: "privacy CA" is now "Attestation CA"

From: =JeffH via GitHub <sysbot+gh@w3.org>
Date: Wed, 04 Oct 2017 23:11:13 +0000
To: public-webauthn@w3.org
Message-ID: <issues.opened-262958879-1507158659-sysbot+gh@w3.org>
equalsJeffH has just created a new issue for https://github.com/w3c/webauthn:

== Per TCG: "privacy CA" is now "Attestation CA" ==
Note that if one searches the TCG's  TPM 2.0 specs for "privacy CA", one will not find it. 

I went looking and found this in https://trustedcomputinggroup.org/wp-content/uploads/IWG_CMC_Profile_Cert_Enrollment_v1_r7.pdf

>2.2 Attestation CA
The primary Certification Authority (CA) associated with the TPM has been referred to in previous TCG publications as either the “Privacy CA” (PCA) or “Platform CA”. In an effort to separate the issues of privacy from those of attestation, that designation is replaced here with the term “Attestation CA” (ACA). The role and operation of the ACA is described in detail in section 3, below.

Indeed "attestation CA" is used in e.g. in [TPM 2.0 Part 1 Architecture](https://trustedcomputinggroup.org/wp-content/uploads/TPM-Rev-2.0-Part-1-Architecture-01.38.pdf).















Please view or discuss this issue at https://github.com/w3c/webauthn/issues/610 using your GitHub account
Received on Wednesday, 4 October 2017 23:11:01 UTC

This archive was generated by hypermail 2.4.0 : Tuesday, 5 July 2022 07:26:28 UTC