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If an encryption algorithm is known but not the key, how secure is the scheme? If a key is known but not the algorithm, how
- If an encryption algorithm is known but not the key, how secure is the scheme?
- If a key is known but not the algorithm, how secure is that scheme?
- State the two basic operations used in a symmetric encryption algorithm.
- Explain the difference between a monoalphabetic cipher and a polyalphabetic cipher.
- State the two general approaches of attacking a cipher.
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