This article explains what password hashing and salting mean, how they work, and why they're necessary.
Password hashing
Password skipping
How we secure passwords at Proton
Password hashing
Hashing is a way to scramble information into a fixed-length oman phone number data string of letters and numbers. You can take unencrypted information, be it a password, image, or entire book, and feed it into a hash function, which turns that information into a hash value with a specific number of characters. For example, SHA-256, one of the most common hash functions, always creates 256-bit (32-byte) hash values.
Create your own hash values(new window)
Besides creating a fixed-length product, there are two other things that distinguish hashing from standard encryption. Hashing is:
Irreversible — You cannot “unhash” (or regenerate the original information) a hash value no matter what you do.
Deterministic — If you enter the same input information into a hash function, it will return the same hash value every time.
Unpredictable — It should be almost impossible to guess its resulting hash value for any given input information. In fact, if you can take a hash value and easily guess or create the input that would generate that hash value, then that hash function should be considered vulnerable and avoided.