Greetings, I have a Netsilicon CPU (NS9215) which contains an AES accelerator which I want to use with OpenSSL. I have a Linux driver for this hardware AES module which uses the kernel 2.6.26 CryptoAPI. This driver basically registers the cbc(aes) and ecb(aes) ciphers.
/ # cat /proc/crypto name : cbc(aes) driver : ns921x-aes module : kernel priority : 0 refcnt : 1 type : ablkcipher async : yes blocksize : 16 min keysize : 16 max keysize : 32 ivsize : 0 geniv : <default> name : ecb(aes) driver : ns921x-aes module : kernel priority : 400 refcnt : 1 type : ablkcipher async : yes blocksize : 16 min keysize : 16 max keysize : 32 ivsize : 0 geniv : <default> I would like to have OpenSSL use this driver to accelerate encryption when using these ciphers. Looking in the Internet I found the OCF project (http://ocf-linux.sourceforge.net/) which is supposed to do the link between the kernel CryptoAPI and OpenSSL by means of an engine called 'cryptodev' which makes use of device node /dev/crypto. I'm using openssl-0.9.8g and have integrated the OCF patches for the 2.6.26 version and for OpenSSL 0.9.8g (similarly as done in http://www.docunext.com/wiki/My_Notes_on_Patching_2.6.22_with_OCF). It builds ok and I obtain several modules: ocf.ko, cryptodev.ko cryptosoft.ko. By executing the OpenSSL commands with option '-engine cryptodev', OpenSSL seems to be using this engine. However, just with that my specific driver functions are not being called. For example I have tried with: # openssl speed -engine cryptodev -evp aes128 and with # time openssl enc aes128 -engine cryptodev -in testfile -out /dev/null -k test I would appreciate any hint of how to tell OpenSSL or OCF to use my driver functions. Thanks -- Héctor Palacios ______________________________________________________________________ OpenSSL Project http://www.openssl.org Development Mailing List openssl-dev@openssl.org Automated List Manager majord...@openssl.org
