Hashes and passwords
What a hash is, how it differs from encryption, how passwords should be stored and how to verify a download.
- 1What is a hash?A hash is a fixed-size fingerprint of data. Learn its properties and where it is used.8 min
- 2Hashing vs encryption vs encodingThree ideas that beginners often mix up, and why the difference matters for security.8 min
- 3How to store passwordsWhy plain SHA-256 is not enough and how salting and slow hashes protect users when a database leaks.12 min
- 4Verifying a download with a checksumUse sha256sum, shasum and Get-FileHash to check a file matches the publisher's checksum.8 min
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