RE: [PATCH 1/2] wrapper: add a helper to generate numbers from a CSPRNG

On November 16, 2021 7:48 PM, Carlo Arenas wrote:

On Tue, Nov 16, 2021 at 4:01 PM [off-list ref] wrote:

quoted

We do link with libcurl and use OpenSSL as a DLL to handle TLS. The

underlying random source for the nonstop-* configurations as of OpenSSL
3.0 are PNRG supplied by the vendor (HPE) on ia64 and the hardware
rdrand* instructions on x86. I know that part of the OpenSSL code rather
intimately.

Older versions of OpenSSL exported (AFAIK) a usable version of
arc4random_buf() that could have helped here; it seems to still be there in
libressl[1] which is mostly API compatible and might be worth looking into
IMHO even if as you pointed out will need an implementation similar to what
OpenSSL does internally.

[1] https://cvsweb.openbsd.org/src/lib/libcrypto/arc4random/

I do not see arc4random being used in our builds going back to OpenSSL 1.0.2, which is as far back as I go anyway.