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2024 Oct 09
1
sshd fails when using cryptodev-linux to compute hmac
...penssl engine entirely so that openssh works properly. I doubt that hardware-accelerated crypto is going to have much benefit for SSH workloads anyway.
Unfortunately or not I'm not able to confirm issue on 64 bit AMD.
Environment:
- qemu virtual machine,
- OpenSUSE leap 15.4,
- current pxis-ssh (15.3+)
- current openssl stable (3.3.2+),
- current cryptodev kernel modile (1.14+),
- openssl configuration with described devcrypto engine and
activated(init = 1)
All regression test pass. Also putty interoperability regression tests
pass as well.
About '... custom buildroot...
2024 Oct 09
3
sshd fails when using cryptodev-linux to compute hmac
Hi Damien,
> I don't know anything about cryptodev-linux, but I assume it's an openssl engine?
Cryptodev-linux is a kernel module that provides access to kernel crypto drivers, especially hardware-accelerated crypto, through the /dev/crypto device. Openssl implements an engine which interfaces to it.
> If so it's possible sshd's multiprocess model and/or file descriptor