- ErrSignatureExpired = errors.New("Signature expired")
- ErrSignatureInvalid = errors.New("Invalid signature")
- ErrSignatureMalformed = errors.New("Malformed signature")
- ErrSignatureMissing = errors.New("Missing signature")
+ // ErrSignatureExpired - a signature was rejected because the
+ // expiry time has passed.
+ ErrSignatureExpired = errors.New("Signature expired")
+ // ErrSignatureInvalid - a signature was rejected because it
+ // was badly formatted or did not match the given secret key.
+ ErrSignatureInvalid = errors.New("Invalid signature")
+ // ErrSignatureMissing - the given locator does not have a
+ // signature hint.
+ ErrSignatureMissing = errors.New("Missing signature")