The authenticator attestation identifier: a unique identifier assigned to a model,
class or batch of FIDO Authenticators that all share the same characteristics, and which a
Relying Party can use to look up an Attestation Public Key and Authenticator Metadata for the
device.
The AAID is a string with format "V#M", where:
"#" is a separator.
"V" indicates the authenticator Vendor Code. This code consists of 4 hexadecimal digits.
"M" indicates the authenticator Model Code. This code consists of 4 hexadecimal digits.
The authenticator attestation identifier: a unique identifier assigned to a model, class or batch of FIDO Authenticators that all share the same characteristics, and which a Relying Party can use to look up an Attestation Public Key and Authenticator Metadata for the device.
The AAID is a string with format "V#M", where: