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benob
on April 24, 2022
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Calling NSA to find your encryption key after a fe...
Is there a way to embed redundancy in a crypto key so that another key a few bits away can still decrypt the data?
clysm
on April 24, 2022
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DES (and TDES) has 1 parity bit for every 7 bits of key. Nobody really uses it as far as I've seen (e.g. they just generate random keys with invalid parity), but it's built in to the key itself.
ip26
on April 25, 2022
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Parity only tells you the key is corrupt, it can't correct the block :/
kevin_thibedeau
on April 24, 2022
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Encode it for storage with FEC.
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