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Questions and Answers
Which type of symmetric cipher encrypts digital data stream of plaintext message one bit or one character at a time?
Which type of symmetric cipher encrypts digital data stream of plaintext message one bit or one character at a time?
- Block cipher
- Asymmetric cipher
- Hash function
- Stream cipher (correct)
Which type of symmetric cipher processes the plaintext in relatively large blocks?
Which type of symmetric cipher processes the plaintext in relatively large blocks?
- Block cipher (correct)
- Stream cipher
- Hash function
- Asymmetric cipher
Which type of cipher uses a single key to encrypt the whole block?
Which type of cipher uses a single key to encrypt the whole block?
- Block cipher (correct)
- Asymmetric cipher
- Hash function
- Stream cipher
Which type of cipher is divided into two broad categories: stream ciphers and block ciphers?
Which type of cipher is divided into two broad categories: stream ciphers and block ciphers?
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Which type of cipher uses a symmetric key?
Which type of cipher uses a symmetric key?
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Study Notes
Symmetric Ciphers
- Stream Cipher: encrypts digital data stream of plaintext message one bit or one character at a time
- Block Cipher: processes the plaintext in relatively large blocks
- Block Cipher: uses a single key to encrypt the whole block
- Symmetric Cipher: divided into two broad categories: Stream Ciphers and Block Ciphers
- Symmetric Cipher: uses a symmetric key
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