Which one of the following modes of operation in DES is used for operating short data?a.Output Feedback Modes (OFB)b.Cipher Block chaining (CBC)c.Electronic code book (ECB)d.Cipher Feedback Mode (CFB)

The Electronic Code Book (ECB) mode of operation in DES (Data Encryption Standard) is typically used for operating short data. This is because in ECB, each block of text is encrypted independently, which makes it suitable for short messages. However, it's worth noting that ECB is less secure compared to other modes like CBC, CFB, and OFB, because it does not use any chaining mechanism and the same plaintext block will always result in the same ciphertext block.