Hi, Can anyone help me with this? I know that if you go to dev.missilesys.com, and download the cert you see that it is signed by International Weapons Export

Hi, Can anyone help me with this? I know that if you go to dev.missilesys.com, and download the cert you see that it is signed by International Weapons Export Inc. so i created a root ca with the same name than i created a csr with common name administrator than i created a cert, i used the csr and the root ca i generated after that i created a pfx, it's the same as p12 afaik, and tried to login i'm getting error 400 i wanted to use the original ca from the web site, i decoded the file p12, but i don't have the private key anyone can help me? thanks