[issue14532] multiprocessing module performs a time-dependent hmac comparison

Antoine Pitrou report at bugs.python.org
Thu Apr 12 16:08:35 CEST 2012


Antoine Pitrou <pitrou at free.fr> added the comment:

You could rewrite:

    result |= x ^ y

as:

    result |= (x != y)

Of course, this assumes that the "!=" operator is constant-time for 1-element strings.

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nosy: +pitrou

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<http://bugs.python.org/issue14532>
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