-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 03/06/15 06:32, R?my Gr?nblatt wrote: > Hello. I have a custom external hardware encryption chip that can > computes some operations like the addition of two points, the > inverse of one point, etc. > > I read that if I want to move some calculus from openssl to this > chip, Openssl engines are the way to go. > > By defining a custom EC_METHOD, for example, I can just move the > inverse on the chip while keeping other functions "in openssl" > (not moving them). Still, how do I ask to my Engine to use this > new custom EC_METHOD ? > > I see functions like ENGINE_set_default_ECDSA, or > ENGINE_set_default_ECDH, but I don't want to change thoses, only > the underlying EC_METHOD which is "used" for calculus. > > I do not know if it's clear, but what i'm searching for is a kind > of "ENGINE_set_default_EC_METHOD" which could be used by the tests > from ectest.c, for example. Any idea ? Unfortunately, I don't think such a thing exists. In fact the definition of EC_METHOD is not defined in any public header file so it is not currently possible to provide your own version without hacking OpenSSL itself. Matt -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJVbvn8AAoJENnE0m0OYESRwtsH/1p941OTgrEMPuLlkyulf4DA E3HzZNqgShlGBK6y4NrI+1bwPAHNeRe1weQuaOokDqiY9k+Qh/B4ncKVKbH3kJFF c8xlKhf9GsMzsfV+sqeTSX0b16cvTbos0l6JEVGcypLib7jtcJcE9a966dC699Cz 7k6Adq6mpznm30JFFARon0Ov7htLvCvU6nRgBnV3nSh/+++5iNe1ZQht06El92Ap VPvbYz54zePaQgndI/lgtNEA9RQcI/Zsbn3dJzs9FDWyMs4JCjf0Yl2oCtzfeb2c wMX6nJFiTOMa6rMUpPedTd2QS/XrOHUpPdcRxWpz4grYklqVAizlKrtHPutwrpo= =//we -----END PGP SIGNATURE-----
