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Which one of the following modes of operation in DES is used for operating short data?

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Which one of the following modes of operation in DES is used for operating short data?

(a) Cipher Feedback Mode (CFB)

(b) Cipher Block chaining (CBC)

(c) Electronic code book (ECB)

(d) Output Feedback Modes (OFB)

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My question is based upon Overview in division Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security

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Correct answer is (c) Electronic code book (ECB)

Easy explanation: The Electronic code book mode is used for operating on short data as the same key is used for each block. Thus repetitions in Plain Text lead to repetitions in Cipher Text.

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