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Use a secure Key Derivation Function #5

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Mandragorian opened this issue Oct 5, 2016 · 0 comments

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Mandragorian commented Oct 5, 2016 •

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In order to derive keys from shared secrets calculated during the DAKE and GKA we use a very simple and custom key derivation function.

While it is probably not insecure this is a bad practice and we should use a standardized KDF instead.

The best candidate is https://tools.ietf.org/html/rfc5869 since it is very simple and quite similar to what we already do.

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