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

[morthalan]

I got two Ideas. I can verify the certificate by comparing the issuer name

char *s = X509_NAME_oneline(X509_get_subject_name(cert), NULL, 0);
char *i = X509_NAME_oneline(X509_get_issuer_name(cert), NULL, 0);
int rc = strcmp(s, i);

verifying with public key 

EVP_PKEY *caPubkey = X509_get_pubkey(signCert);
X509_REQ_verify(certreq, caPubkey);

thanks for the suggestions.





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