Web Security: Common Vulnerabilities And Their Mitigation - A little bit about hashing

The video tutorial covers the concept of hashing, explaining its characteristics and importance in data security. It discusses the properties of a good hash function, such as collision resistance and preimage resistance. Common hashing algorithms like MD5 and SHA are examined, highlighting their uses and vulnerabilities. The tutorial also explores various password attack methods, including dictionary attacks, brute force, and rainbow tables. Finally, it emphasizes the use of salting to enhance password security, making rainbow table attacks nearly impossible.

What is hashing and how does it differ from encryption?

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List the characteristics that a good hash function should have.

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Explain the concept of preimage resistance in hashing.

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What are the potential security issues with using MD5 as a hashing algorithm?

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Describe how a brute force attack works on hashed passwords.

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What is a rainbow table and how does it relate to password security?

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How does salting a password enhance security against attacks?

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What is the significance of collision resistance in hashing?

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Discuss the implications of using the same salt for multiple passwords.

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What are the differences between first preimage resistance and second preimage resistance?

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