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[–]Craftkorb0 points
6 points
6 points
(+6|-0)
ago
but very bad for the performance.
I call bullshit. I have a Lenovo Thinkpad X201, which has a i5 520M as CPU and thus supports AES extension. A SSD is used as storage. Not the fastest one ever, still: 150MiB/s reading without encryption, ~125MiB/s with full disk encryption. I don't notice a thing whatever I do with it.
Not really. Most modern CPUs have AES support, so performance hit using this cipher on HDDs isn't so bad. And SSDs aren't recommended for encrypted data anyway, since they keep ciphertext blocks which were rewritten and also need marking empty blocks for better performance, which both weakens the encryption.
[–]brojobbro0 points
0 points
0 points
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ago
Full disk encryption is possible, but very bad for the performance.
No it's not. Not even a little. It takes longer for me to type in the password than it does to decrypt it. As for performance of my computer once its decrypted, I can't tell a difference.
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[–] xyzzy 2 points 1 point 3 points (+3|-2) ago
Full disk encryption is possible, but very bad for the performance.
Technically not everything is encrypted, the bootloader which asks for your passphrase and decrypts the filesystem is not.
[–] Craftkorb 0 points 6 points 6 points (+6|-0) ago
I call bullshit. I have a Lenovo Thinkpad X201, which has a i5 520M as CPU and thus supports AES extension. A SSD is used as storage. Not the fastest one ever, still: 150MiB/s reading without encryption, ~125MiB/s with full disk encryption. I don't notice a thing whatever I do with it.
[–] VimTsar 0 points 6 points 6 points (+6|-0) ago
Not really. Most modern CPUs have AES support, so performance hit using this cipher on HDDs isn't so bad. And SSDs aren't recommended for encrypted data anyway, since they keep ciphertext blocks which were rewritten and also need marking empty blocks for better performance, which both weakens the encryption.
[–] e0steven 0 points 4 points 4 points (+4|-0) ago
I don't think that is the case at all and I doubt you've ever actually used it.
[–] qiezidaifu 0 points 1 point 1 point (+1|-0) ago
Well then state why that's not the case, no need for chirping.
[–] brojobbro ago
No it's not. Not even a little. It takes longer for me to type in the password than it does to decrypt it. As for performance of my computer once its decrypted, I can't tell a difference.
[–] [deleted] ago