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

[Anil kumar Reddy]

 Hi everyone,

I am new to opennssl and now I am completely confused. Please help me out
to solve my issue.

I have implemented a code to sign the given CSR certificate (certReq.pem),
then generate openssl signed Certificate (SignedCertificate.pem) using the
details of certReq,pem. The code is like self signing, but I have added new
functions to enter additional issuer details. Now I have two private keys
one from CA, another from CSR, one CSR (certReq.pem) and Signed Certificate
(SignedCertificate.pem). In SignedCertificate.pem, the subject details and
the issuer details are different. There is no problem with codes.

The issue is:
I am unable to find out the exact command lines or c/c++ program functions
to prove the SignedCertificate.pem is signed or not. I have spent more than
one day on researching, but I am end up with confusion. I do not have any
digital certificate chain.


Could anyone kindly provide any information regarding this.

Thanks in advance,
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