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What makes for a good v. bad secret key using the Vigenere cipher? Give examples of a good key and a bad one and explain why.
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What makes for a good v. bad secret key using the Vigenere cipher? Give examples of a good key and a bad one and explain why.

User Yussef
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A good key is one that is longer than the text being protected. It should have a combination of letters and digits, example, "AGR54SH6J87KOP" is a good key. A bad key is one that is predictable,or contains only letters. Some examples of bad keys are "GGGGGG" or "MYPASSWORD"
User Priojeet Priyom
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