What is hashing and why is it important in security?

What is hashing and why is it important in security?

Hashing is a process that transforms input data into a fixed-size string of characters, which is typically a hash code. It's important in security because it ensures data integrity and confidentiality.

Can you explain how hashing is used in password storage?

Certainly! When storing passwords, systems use hashing to convert the password into a hash. This way, even if the database is compromised, the actual passwords are not exposed.

What are some common hashing algorithms?

Some common hashing algorithms include MD5, SHA-1, and SHA-256. Each has different levels of security and performance.

Are there any vulnerabilities associated with hashing?

Yes, vulnerabilities like hash collisions and pre-image attacks can occur. It's crucial to use strong algorithms and techniques like salting.

How can I choose a secure hashing algorithm?

Look for algorithms that are widely accepted and recommended by security experts, such as SHA-256 or bcrypt, and ensure they are regularly updated.