Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit bcb2f734 authored by David Drysdale's avatar David Drysdale
Browse files

KeyMint HAL: clarify ATTEST_KEY is like SIGN 

Bug: 221280929
Test: None, comment change only (already assumed by VTS tests)
Change-Id: Ifc077c6ce1a89164b0d7c70c6e3353d941eee670
parent b9fbe11d

security/keymint/aidl/android/hardware/security/keymint/KeyCreationResult.aidl

+8 −7
Original line number Diff line number Diff line
@@ -78,15 +78,16 @@ parcelable KeyCreationResult { 
     *     provided, otherwise ATTESTATION_APPLICATION_ID_MISSING will be returned.

     *

     * 3.  Asymmetric key non-attestation with signing key.  If Tag::ATTESTATION_CHALLENGE is not

     *     provided and the generated/imported key has KeyPurpose::SIGN, then the returned

     *     certificate chain must contain only a single self-signed certificate with no attestation

     *     extension.  Tag::ATTESTATION_APPLICATION_ID will be ignored if provided.

     *     provided and the generated/imported key has KeyPurpose::SIGN or KeyPurpose::ATTEST_KEY,

     *     then the returned certificate chain must contain only a single self-signed certificate

     *     with no attestation extension.  Tag::ATTESTATION_APPLICATION_ID will be ignored if

     *     provided.

     *

     * 4.  Asymmetric key non-attestation with non-signing key.  If TAG::ATTESTATION_CHALLENGE is

     *     not provided and the generated/imported key does not have KeyPurpose::SIGN, then the

     *     returned certificate chain must contain only a single certificate with an empty signature

     *     and no attestation extension.  Tag::ATTESTATION_APPLICATION_ID will be ignored if

     *     provided.

     *     not provided and the generated/imported key does not have KeyPurpose::SIGN nor

     *     KeyPurpose::ATTEST_KEY, then the returned certificate chain must contain only a single

     *     certificate with an empty signature and no attestation extension.

     *     Tag::ATTESTATION_APPLICATION_ID will be ignored if provided.

     *

     * 5.  Symmetric key.  If the generated/imported key is symmetric, the certificate chain must

     *     return empty, any Tag::ATTESTATION_CHALLENGE or Tag::ATTESTATION_APPLICATION_ID inputs,