[exim-dev] [Bug 722] New: Need a random number generator

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http://bugs.exim.org/show_bug.cgi?id=722
           Summary: Need a random number generator
           Product: Exim
           Version: N/A
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: wishlist
          Priority: high
         Component: String expansion
        AssignedTo: nigel@???
        ReportedBy: to.roma.from.eximbug@???
                CC: exim-dev@???

An RNG has many applications. There are places where load balancing cannot be
achieved by standard Exim means, and other uses also.

For example, I need to fakereject a small random sample of spam for learning. I
need to have Exim bind to a random interface when sending outgoing messages.
Cryptographically signed return paths need random seeding.

A simple $rand, or $rand{MIN}{MAX}, would do the job quite well. Workarounds
like ($tod_epoch+$pid)%N, ${perl}, ${run}, ${readfile{/dev/urandom}} have
obvious problems.

TIA, Roman.


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