[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] error: qcrypto_random_bytes() tried to read from /dev/[
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] error: qcrypto_random_bytes() tried to read from /dev/[u]random, even on windows |
Date: |
Mon, 24 Apr 2017 14:52:30 +0100 |
On 24 April 2017 at 14:36, Daniel P. Berrange <address@hidden> wrote:
> FYI, both gnutls and openssl use these CryptAcquireContext/CryptGenRandom
> methods, so I'd prefer to stick with that.
They probably need the full crypto API anyway, though...
> It seems we merely need to set CRYPT_SILENT in the flags to prevent any
> chance of interactive prompts.
>
> https://msdn.microsoft.com/en-us/library/windows/desktop/aa379886(v=vs.85).aspx
How about CRYPT_VERIFYCONTEXT? The docs say "in most cases this flag
should be set".
This kind of discussion puts me off the Crypt* APIs though -- they're
a complicated API that can easily be misused. "Please just fill
this buffer with randomness" is a simple API that's hard to call
wrongly...
thanks
-- PMM
- [Qemu-devel] error: qcrypto_random_bytes() tried to read from /dev/[u]random, even on windows, GM . Ijewski, 2017/04/24
- Re: [Qemu-devel] error: qcrypto_random_bytes() tried to read from /dev/[u]random, even on windows, Daniel P. Berrange, 2017/04/24
- Re: [Qemu-devel] error: qcrypto_random_bytes() tried to read from /dev/[u]random, even on windows, Peter Maydell, 2017/04/24
- Re: [Qemu-devel] error: qcrypto_random_bytes() tried to read from /dev/[u]random, even on windows, Daniel P. Berrange, 2017/04/24
- Re: [Qemu-devel] error: qcrypto_random_bytes() tried to read from /dev/[u]random, even on windows,
Peter Maydell <=
- Re: [Qemu-devel] error: qcrypto_random_bytes() tried to read from /dev/[u]random, even on windows, Daniel P. Berrange, 2017/04/24
- Re: [Qemu-devel] error: qcrypto_random_bytes() tried to read from /dev/[u]random, even on windows, Peter Maydell, 2017/04/24
- Re: [Qemu-devel] error: qcrypto_random_bytes() tried to read from /dev/[u]random, even on windows, Daniel P. Berrange, 2017/04/24
- Re: [Qemu-devel] error: qcrypto_random_bytes() tried to read from /dev/[u]random, even on windows, Peter Maydell, 2017/04/24
- Re: [Qemu-devel] error: qcrypto_random_bytes() tried to read from /dev/[u]random, even on windows, Daniel P. Berrange, 2017/04/24
- Re: [Qemu-devel] error: qcrypto_random_bytes() tried to read from /dev/[u]random, even on windows, Geert Martin Ijewski, 2017/04/24
- Re: [Qemu-devel] error: qcrypto_random_bytes() tried to read from /dev/[u]random, even on windows, Daniel P. Berrange, 2017/04/24