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Date: Tue, 14 May 2019 01:17:24 +0200
From: "Vincent" <>
To: <>
Subject: Re: ZTEX: timeouts and optimizing?

Vincent wrote:
>I'm playing with john and some ZTEX boards. Some unexpected errors are
>shown once in a while:
><cracking starts>
>SN <removed>: Timeout.
>Found 1 device(s) ZTEX 1.15y
>SN: <removed> productId: "inouttraffic JtR 1.8.x" busnum:1
><cracking continues>

Extra info: time-outs seem to be hash specific. Quick time-out errors (< 20s
after starting john) occur with e.g. phpass-ztex and sha256crypt-ztex. No
errors at all after a long run (> 30m) bcrypt-ztex. Lowering frequencies for
affected hash types doesn't help. Boards are well cooled, temperatures are

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