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Old hash functions or short MAC tag #1228

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exploide opened this issue Apr 2, 2019 · 0 comments

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@exploide
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commented Apr 2, 2019

For a future release, I would like to propose to classify the use of old hash functions or short MACs.

This could be triggered when using MD5 or SHA-1 for KDF or MAC. Besides, it could also be triggered when using a short MAC tag, as in CCM_8 (which is not recommended by IANA, see https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-4).

For the severity, I propose a yellow marking. Currently we have the not so bad category "Average: SEED + 128+256 Bit CBC ciphers". A similar category like "Old hash functions or short MAC tag" could be introduced.

@drwetter drwetter added this to the 3.1dev milestone Apr 2, 2019
@drwetter drwetter added the feature label Apr 2, 2019
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