This standard specifies requirements for cryptographic units that provide encryption and authentication for data contained within storage media. Full interchange requires additional format specifications (such as compression algorithms and physical data format) that are beyond the scope of this standard. This standard is suitable for encryption of data stored on tape because tape easily accommodates length expanding ciphertext. In addition, this standard applies to other storage devices if these support storing extra metadata with each encrypted record. The algorithms of this standard are designed to ensure the confidentiality and integrity of stored data within systems requiring a high level of assurance. New IEEE Standard - Superseded. This standard specifies cryptographic and data authentication procedures for storage devices that support length-expansion, such as tape drives. Such procedures include the following cryptographic modes of operation for the AES block cipher: CCM, GCM, CBC-HMAC, and XTS-HMAC.