What is the difference between hash functions and encryption in C#?

What is the difference between hash functions and encryption in C#?

Hash functions are used to generate a fixed-size string from input data, ensuring data integrity, while encryption transforms data to keep it confidential.

Can you give me examples of hash functions in C#?

Sure! Common hash functions in C# include SHA256, SHA1, and MD5, which can be found in the System.Security.Cryptography namespace.

When should I use hashing instead of encryption?

Use hashing when you need to verify data integrity, like storing passwords. Use encryption when you need to protect data confidentiality.

Are there any security concerns with using MD5?

Yes, MD5 is considered weak due to vulnerabilities that allow for collision attacks. It's better to use stronger algorithms like SHA256.