credential

type Authenticator struct {
	// The AAGUID of the authenticator. An AAGUID is defined as an array containing the globally unique
	// identifier of the authenticator model being sought.
	AAGUID []byte
	// SignCount -Upon a new login operation, the Relying Party compares the stored signature counter value
	// with the new signCount value returned in the assertion’s authenticator data. If this new
	// signCount value is less than or equal to the stored value, a cloned authenticator may
	// exist, or the authenticator may be malfunctioning.
	SignCount uint32
}

type Credential struct {
	// A probabilistically-unique byte sequence identifying a public key credential source and its authentication assertions.
	ID []byte
	// The public key portion of a Relying Party-specific credential key pair, generated by an authenticator and returned to
	// a Relying Party at registration time (see also public key credential). The private key portion of the credential key
	// pair is known as the credential private key. Note that in the case of self attestation, the credential key pair is also
	// used as the attestation key pair, see self attestation for details.
	PublicKey []byte
	// The attestation format used (if any) by the authenticator when creating the credential.
	AttestationType string
	// Indicates if the credential was created with userVerification
	UserVerification bool
	// The Authenticator information for a given certificate
	Authenticator Authenticator
}

type CredentialService interface {
	ExistsCredential(credentialId []byte) (bool, error)
	GetCredential(credentialId []byte) (cred *Credential, userId []byte, err error)
	GetCredentialForUser(userId []byte) ([]Credential, error)
}