[openssl-users] OCSP_sendreq_bio()

Michael Ströder michael at stroeder.com
Fri Oct 30 20:38:32 UTC 2015

Walter H. wrote:
> On 28.10.2015 16:44, Jakob Bohm wrote:
>> On 27/10/2015 21:21, Walter H. wrote:
>>> On 26.10.2015 21:42, rosect190 at yahoo.com wrote:
>>>> Hi, I need some help on this call.
>>>> I am building an OCSP client following guide in openssl and compile the
>>>> code in Cygwin environment. My openssl version is 1.0.1h.
>>>> With HTTP based OCSP, the code works fine. But, with HTTPs, the code gets
>>>> stuck at the call to OCSP_sendreq_bio(). Further debugging shows that
>>>> OCSP_sendreq_nbio() does not return.
>>>> Did I need to something extra to deal with HTTPs based connection?
>>> OCSP must not be https ...
>>> the same with CRL download ...
>> Really, I thought that was only a recent cop out rule to
>> cater to clients with inferior SSL libraries that can't
>> handle the recursion.
> both OCSP and CRLs are signed, and this is enough for validation,
> there is no need of SSL;

There are some privacy concerns with OCSP usage.
So using TLS to protect the traffic against sniffing would be good.

Ciao, Michael.

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