Trying to parse X509 extension, shows chunk of bytes but not able to parse.
swanandb2 opened this issue · comments
Hello,
I did try to use this lib with crypto++, I was able to parse x509 certificate. When it come to parse custom extension, it shows chunk of byes. How can I decode those bytes. I did try to use BERDecode it throws exception.
I would like to know, Is there any possibility to parse custom ASN1 extension? How we can do it?
When it come to parse custom extension, it shows chunk of byes
Yeah, that sounds about right.
How can I decode those bytes.
I recommend taking a look at how Subject Alt Names (SAN) are parsed. SANs are a good example because they are identified by an OID. Once the OID is recognized, then the various types of names are parsed and interpreted.
You can find the code to parse a SAN at https://github.com/noloader/cryptopp-pem/blob/master/x509cert.cpp#L1718.
If you provide a sample certificate, I may be able to help you.
Sorry for delayed reply. Thanks for response, i will look into it and revert.
Sorry to move off topic, but I would like to know if Crypto++ is FIPS-140 certified? As per my understanding it had but long time ago. Is there any update on certification status? I love interfaces but as per customer need we need FIPS certified libs only.