jaas/src/main/java/com/yubico/jaas/YubikeyLoginModule.java
private boolean is_right_user(String username, String publicId) {
		log.debug("Check if YubiKey {} belongs to user {}", publicId, username);
		return this.ykmap.is_right_user(username, publicId);
	}
private boolean is_right_user(String username, String publicId) {
		log.debug("Check if YubiKey {} belongs to user {}", publicId, username);
		return this.ykmap.is_right_user(username, publicId);
	}
After validation of an OTP, check that it came from a YubiKey that actually
belongs to the user trying to authenticate.

@param username  Username to match against YubiKey publicId.
@param publicId  The public ID of the authenticated YubiKey.
@return true if the username matched the YubiKey, false otherwise