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2 votes
Accepted

Why does Argon2 truncate BLAKE2b outputs?

Emailing all three authors resulted in no reply, but I realised this is done to prevent you computing subsequent blocks from previous blocks. Given the first block of output, you don't want someone to ...
samuel-lucas6's user avatar
1 vote

Does the actual length of a password or salt provide any additional entropy to that contained within them?

does length add anything? Yes. Without the lengths, (password="aqwal", salt="[email protected]") and ...
fgrieu's user avatar
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2 votes
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Is using KDF more insecure that generating key directly? (AES 256 CBC)

KDF's aren't inherently insecure. However, password based encryption is generally thought to be insecure within many situations. Users do generally not enter passwords that have enough bits to avoid ...
Maarten Bodewes's user avatar

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