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https://issues.apache.org/jira/browse/NIFI-2621?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andy LoPresto resolved NIFI-2621.
---------------------------------
Resolution: Fixed
> NiFi CertificateUtils can reuse serial numbers in issued certificates if
> multiple calls are made in the same millisecond
> ------------------------------------------------------------------------------------------------------------------------
>
> Key: NIFI-2621
> URL: https://issues.apache.org/jira/browse/NIFI-2621
> Project: Apache NiFi
> Issue Type: Bug
> Reporter: Bryan Rosander
> Assignee: Bryan Rosander
> Fix For: 1.0.0
>
>
> Serial numbers on certificates should be unique. CertificateUtils currently
> uses System.currentTimeMillis() to generate them.
> Proposed solution:
> 1. Use the current time in millis as the most significant part of the serial
> number
> 2. Shift it left 32 bits to make room in the BigInteger for an incrementor
> value
> 3. Add the incrementor value to the BigInteger
> 4. Reset the incrementor every time a the generator function is called and
> the millisecond is different from before
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