Developer
SHA256 vs bcrypt for Passwords
SHA256 is fast which makes it wrong for password storage. bcrypt is slow by design to resist brute force.
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Use SHA256 for
File checksums, data integrity, non-secret fingerprints.
Use bcrypt for
Password hashing with a work factor (cost).
How to do it
- Never SHA256 passwords for storage.
- Use bcrypt Generator for test hashes in development.
Frequently Asked Questions
- Is SHA256 reversible?
- No, but attackers can try billions of guesses per second.