WebAuthn Attestation Statement Format Identifier,Description,Reference,Change Controller,Notes
packed,"The ""packed"" attestation statement format is a WebAuthn-optimized format for attestation. It uses a very compact but still extensible encoding method. This format is implementable by authenticators with limited resources (e.g., secure elements).","[Web Authentication] Section ¡ì8.2, Packed Attestation Statement Format",[W3C_Web_Authentication_Working_Group],
tpm,"The TPM attestation statement format returns an attestation statement in the same format as the packed attestation statement format, although the rawData and signature fields are computed differently.","[Web Authentication] Section ¡ì8.3, TPM Attestation Statement Format",[W3C_Web_Authentication_Working_Group],
android-key,"Platform authenticators on versions ""N"", and later, may provide this proprietary ""hardware attestation"" statement.","[Web Authentication] Section ¡ì8.4, Android Key Attestation Statement Format",[W3C_Web_Authentication_Working_Group],
android-safetynet,Android-based platform authenticators MAY produce an attestation statement based on the Android SafetyNet API.,"[Web Authentication] Section ¡ì8.5, Android SafetyNet Attestation Statement Format",[W3C_Web_Authentication_Working_Group],
fido-u2f,Used with FIDO U2F authenticators,"[Web Authentication] Section ¡ì8.6, FIDO U2F Attestation Statement Format",[W3C_Web_Authentication_Working_Group],
apple,Used with Apple devices' platform authenticators,"[Web Authentication] Section ¡ì8.8, Apple Anonymous Attestation Statement Format",[W3C_Web_Authentication_Working_Group],
none,Used to replace any authenticator-provided attestation statement when a WebAuthn Relying Party indicates it does not wish to receive attestation information.,"[Web Authentication] Section ¡ì8.7, None Attestation Statement Format",[W3C_Web_Authentication_Working_Group],