[openssl-users] Get raw RSA public key from X509 certificate

Ken Goldman kgoldman at us.ibm.com
Thu Apr 26 20:17:53 UTC 2018

I have to get the raw public modulus, but I cannot X509_get_pubkey() 
because of a non-standard object identifier.

I can use X509_get_X509_PUBKEY() to get part way there.  I see the DER 
wrapped key in the public_key.data element, but I don't know an API to 
get to that element.

Am I on the right track, or is there a better way?

Could some very kind person give me the code flow?

More information about the openssl-users mailing list