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Groups > gnu.bash.bug > #15032
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|---|---|
| From | Luuk <luuk@invalid.lan> |
| Newsgroups | gnu.bash.bug |
| Subject | Re: $RANDOM not Cryptographically secure pseudorandom number generator |
| Date | Wed, 2 Jan 2019 12:01:45 +0100 |
| Lines | 28 |
| Approved | bug-bash@gnu.org |
| Message-ID | <mailman.6692.1546436927.1284.bug-bash@gnu.org> (permalink) |
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On 2-1-2019 02:29, Ole Tange wrote: > On Mon, Dec 31, 2018 at 8:12 PM Chet Ramey <chet.ramey@case.edu> wrote: > : >> Thanks for the patch. I'll take a look after I release bash-5.0. One >> question: can you reproduce the same random sequence by using the same >> seed? That's for backwards compatibility, even if the sequences themselves >> differ. > > Yes. Seeding with a value will give the same sequence: > > $ RANDOM=4; echo $RANDOM $RANDOM > 21584 22135 > > $ RANDOM=4; echo $RANDOM $RANDOM > 21584 22135 > But not across systems: luuk@WINDOWS:/mnt/c/Windows/System32$ RANDOM=4;echo $RANDOM $RANDOM 1692 27588 luuk@WINDOWS:/mnt/c/Windows/System32$ RANDOM=4;echo $RANDOM $RANDOM 1692 27588 luuk@opensuse:~> RANDOM=4; echo $RANDOM $RANDOM 32221 21043 luuk@opensuse:~> RANDOM=4; echo $RANDOM $RANDOM 32221 21043
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Re: $RANDOM not Cryptographically secure pseudorandom number generator Ole Tange <tange@gnu.org> - 2019-01-02 02:29 +0100 Re: $RANDOM not Cryptographically secure pseudorandom number generator Luuk <luuk@invalid.lan> - 2019-01-02 12:01 +0100
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