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8 votes
2 answers
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Fast cipher without needing hardware support (like ChaCha20) for disk encryption

On my old laptop, ChaCha20 is quite a bit faster than AES as there is no hardware acceleration for AES. But for disk encryption AES based schemes seem to be the only option, as a stream cipher like ...
JanKanis's user avatar
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2 votes
0 answers
393 views

Why is using ChaCha20 for disk encryption insecure?

https://en.wikipedia.org/wiki/Disk_encryption_theory Why do we use XTS over CTR for disk encryption? If we used ChaCha20 (without authentication) by simply encrypting each disk sector with the same ...
Mihai's user avatar
  • 21