[openssl-users] DH_generate_key Hangs

Michael Wojcik Michael.Wojcik at microfocus.com
Fri Oct 6 13:33:21 UTC 2017

> From: openssl-users [mailto:openssl-users-bounces at openssl.org] On Behalf Of Jason Qian via openssl-users
> Sent: Friday, October 06, 2017 07:14

> The challenge is that,  we are not directly calling RAND_poll(). We just call DH_generate_key for DH key. 
> From the following call stacks, you can see the RAND_poll() is triggered by ssleay_rand_bytes.

RAND_poll is being called because the PRNG does not have enough entropy. Seed it with sufficient entropy first, and it won't be called by DH_generate_key.

Michael Wojcik 
Distinguished Engineer, Micro Focus 

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