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GnuPG 1.4.23 for DOS (Announce)

posted by rosegondon, C:\DOS, 09.05.2024, 17:11

> Thanks for trying again and posting your screenshot. Is this MS-DOS 6.22?
> What's it running on?
I made tests on QEMU and some generic PC from 90s frem my collection. In both instances generating failed.

> The documentation states that you can collect entropy ahead of time. This
> is just speculation on my part: Maybe it would help to do something disk
> intensive before generating a keypair? The most disk intensive thing i can
> think of is compiling a big program with DJGPP. :-)
During every boot small program I wrote replenishes NOISE.SYS pool with fresh entropy. Also before generating keys I did a test using another diagnostic tool for NOISE.SYS:

[image]

So I am sure that pool was full when GPG started.

URANDOM$ never blocks because it is more or less a CSPRNG using entropy pool as its internal state. It will not delete entropy used. RANDOM$ deletes used entropy and blocks, when pool becomes empty. So if your GPG build is using URANDOM$, it should not hang. So something else is wonky here. Maybe there is some other check of pool entropy which will stop the generating process when there is not enough entropy?

---
echo g=ffff:0|debug>nul

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