Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Explain what it means to have an authentication challenge–response system in place. A method that relies on passwords is not as secure as the one shown here.
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- Why is hashing a file password better than encrypting it?How do password files work?arrow_forwardSecret keys in cryptography are concealed.arrow_forwardExplain the concept of a challenge–response system in the context of authentication. Is this method more secure than a traditional one that relies on passwords?arrow_forward
- Differentiate between public-key and private-key encryption. In your response, give examples of when and why each may be used.arrow_forwardPasswords are more secure when salt is used in cryptography.arrow_forwardIn public key cryptography, a number of different asymmetric encryption techniques are used.arrow_forward
- An authentication challenge–response system is a notion that you need to explain. Why is this more secure than a password-based system?arrow_forwardWhy is the process of hashing passwords more secure than encrypting them?arrow_forwardPlease elaborate so I may learn more about authentication challenge-response systems. A password-based system is not nearly as secure as the one shown here since users must remember their passwords.arrow_forward
- It is recommended to combine public-key cryptography with other asymmetric encryption strategies. In cryptography, public keys are used.arrow_forwardWhy is it preferred to hash passwords rather than encrypt the password file when storing them in a file?arrow_forwardExplain challenge-response authentication and its operation. This method's advantages over password-based ones are unclear.arrow_forward
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