Hi All, I am just beginning to develop a simple openssl engine. In this process, I referred to this nice website http://sinodun.com/2009/02/developing-an-engine-for-openssl/
I downloaded openssl 1.0.0c and compiled in my own folder as follows: ./config --prefix=/home/workingDir/openssl --openssldir=/home/workingDir/openssl make make install Then I proceeded to copy this simple_engine.c file and compiled it to simple_engine.o and then built shared library simple_engine.so. These are found in 'workingDir' After these steps, I changed the 2 openssl.cnf files available under openssl/apps and openssl1.0.0c/ main folders such that: openssl_conf = openssl_def [openssl_def] engines = engines_section [engines_section] simple = simple_section [simple_section] engine_id = simple dynamic_path = /home/workingDir/simple_engine.so MODULE_PATH = /home/workingDir/simple_engine.so init = 0 [req] distinguished_name = req_distinguished_name [req_distinguished_name] After this I set the LD_LIBRARY_PATH to point to /home/workingDir Then when I did: ./openssl engine I get the following error: Error configuring OpenSSL 3076019848:error:25066067:DSO support routines:DLFCN_LOAD:could not load the shared library:dso_dlfcn.c:185:filename(/home/workingDir/simple_engine.so): /home/workingDir/simple_engine.so: undefined symbol: ENGINE_get_static_state 3076019848:error:25070067:DSO support routines:DSO_load:could not load the shared library:dso_lib.c:244: 3076019848:error:260B6084:engine routines:DYNAMIC_LOAD:dso not found:eng_dyn.c:450: 3076019848:error:260BC066:engine routines:INT_ENGINE_CONFIGURE:engine configuration error:eng_cnf.c:204:section=simple_section, name=dynamic_path, value=/home/workingDir/simple_engine.so 3076019848:error:0E07606D:configuration file routines:MODULE_RUN:module initialization error:conf_mod.c:235:module=engines, value=engines_section, retcode=-1 What is the problem? Please help. I am unable to proceed and don't find any documentation. Regards, Tera