{ DESCBC (default) } /DATA_ALGORITHM= { AESmmmkkk } { } Where mmm is the mode CBC, ECB, CFB, or OFB; and kkk is 128, 192, or 256 bits. Cipher Block Chaining (CBC) and Electronic Code Book (ECB) are 16-byte block modes, meaning blocks are padded to 16 bytes if necessary during encryption. The padding is removed during decryption. Cipher Feedback (CFB) and Output Feedback (OFB) are 8-bit character stream mode emulation, useful in data communications and where no padding is required. Note that /DATA_ALGORITM=AES is a shortcut for specifying AESCBC128. The data algorithm is used with the randomly generated key to perform encryption of the file's data. When specifying an AES algorithm, specify both /KEY and /DATA=AESmmmkkk qualifiers and use an AES created key.