A structure and associated method to implement encryptiondecryption under the Data Encryption Standard. The forming conditions of the starting material glass plate are controlled such that the starting material glass plate has a long-wavelength waviness of not more than 6 nm. Registering may include storing the first electronic datasheet in the database. The elastic band having a first end cooperating with the lower closed end and a second end extending partially out of the open end with a plurality of fastener holes thereon.