OpenSSL> ca -policy policy_anything -out 4096_public_cert.pem -infiles 4096_private_key.pem
Using configuration from /usr/lib/ssl/openssl.cnf
Error opening CA private key ./demoCA/private/cakey.pem
7883:error:02001002:system library:fopen:No such file or directory:bss_file.c:278:fopen('./demoCA/private/cakey.pem','r')
7883:error:20074002:BIO routines:FILE_CTRL:system lib:bss_file.c:280:
unable to load CA private key
unable to write 'random state'
error in ca