Computer Science · Cryptography
Which of the following correct defines a block cipher?
- 1A cipher that encrypts digital data one bit at a time
- 2A cipher that treats a fixed-size block of plaintext as a whole✓
- 3A cipher that treats an entire file as a single block
- 4A cipher that encrypts segmented file data dynamically
Correct answer
A cipher that treats a fixed-size block of plaintext as a whole
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