Extremely Slow Ed25519 Key Generation (Entropy Source?)

R0b0t1 r030t1 at gmail.com
Thu Sep 28 07:42:00 CEST 2017

On Thu, Sep 28, 2017 at 12:36 AM, R0b0t1 <r030t1 at gmail.com> wrote:
> Hello,
> As a test, generating 1000 Ed25519 keys took 53 minutes on an AMLogic
> S905. Generating 1000 keys with libcrypto is almost instantaneous.
> Is this due to something I have missed, such as entropy source
> selection? I tried reading the documentation but found nothing
> relevant.

It does seem that key generation slows appreciably after exhausting
the entropy pool. Is there a way to set the entropy source for
internal libgcrypt operations?


More information about the Gcrypt-devel mailing list