What is the difference between hashing and encryption?

Can you explain the difference between hashing and encryption?

Sure! Hashing is a one-way function that converts data into a fixed-size string of characters, which is typically a hash code. Encryption, on the other hand, is a two-way function that transforms data into a format that can only be read by someone who has the decryption key.

So, can you give me an example of when to use each?

Absolutely! You would use hashing for storing passwords securely, as it’s irreversible. Encryption is used for protecting sensitive data, like credit card information, where you might need to retrieve the original data later.

Are there any security risks associated with either?

Yes, with hashing, if the hash function is weak, it can be vulnerable to attacks like collisions. For encryption, if the key is compromised, the data can be easily accessed.

How do I choose a good hashing algorithm?

Look for algorithms that are widely accepted and recommended, such as SHA-256 or bcrypt, which are known for their security and resistance to attacks.