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Cryptography / Hashing

Lesson 10 of 25

File integrity

Software sites publish hashes of their downloads. If your file's hash matches, it hasn't been changed or corrupted.

Key points

  • sha256sum file
  • Compare with the published value
  • Signatures are even better
sha256sum ubuntu.iso
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Quiz · +10 XP

A downloaded file's hash doesn't match the published one. What should you do?

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