On Mon, Aug 01, 2016, Syed Elec wrote: > Hi everyone, > > I'm currently working on an engine and I have a question about 'overload' > the openssl dgst -sign ... command line using this engine. > > I can overload the openssl dgst only (for digests) using ENGINE_set_digests > but how overload the whole command openssl dgst -sign > > for example : > openssl dgst -md5 -binary -engine myengine -keyform engine -sign key.pem > -out dgst.sig file > You need to provide support for the appropriate public key algorithm e.g. an RSA_METHOD. This can either be for general purpose acceleration of a key specific method which is used only for keys loaded from that ENGINE. Steve. -- Dr Stephen N. Henson. OpenSSL project core developer. Commercial tech support now available see: http://www.openssl.org