[openssl-users] How to prove a Certificate is Signed or not

[Salz, Rich]

On 5/3/18, 4:24 AM, "morthalan" <morthalaanilreddy at gmail.com> wrote:

    No, technically not. I am just searching for a simple method just to check a
    certificate is signed by CA or not. 
    Because. Something like signing check, I am not quite sure, I do not have
    proper knowledge on Openssl.
    

If you have a cert, and a list of CA's that you trust, look at the verify command.