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OFB of DES works like a stream cipher.
True
False
In situations where you need to encrypt a smaller amount of data, you need the cipher to work like a stream cipher and to encrypt individual bits of the blocks, as in CFB. In some cases, you still need to encrypt a small amount of data at a time (1 to 8 bits), but you need to ensure possible errors do not affect your encryption and decryption processes. AIO, Shon Harris - Pg: 384
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