openssl 1.0.1e Signature verification problems

Hi,  I am using openssl 1.0.1e to create a CA and generate certificates. I am facing an issue while generating the device certificates. After creating the ca certificate using below command # openssl req -x509 -new -newkey rsa:1024 -keyout private/cakey.pem -days 3650 -out cacert.pem when we

CRT based mod_exp for RSA

Hi, The Hardware crypto accelerator I am using has support up-to 2048 bits only for RSA. To do 4096 bit operations I want to use CRT based modular exponentiation and offload 2048 bit ops to hardware. I didn't find any mod_exp function which uses CRT for doing modular exponentiation in