Serial number mismatch?

[kgrimsby]

Hi,

I'm testing django-x509 for my application. Upon creating client certificate I noticed something strange regarding serial_number.

From database:
Serial number: 169979165402110668045607377783554886462
Certificate:
Data:
Version: 3 (0x2)
Serial Number:
88:77:73:03:c1:e5:4a:5c:81:4f:58:20:6d:cf:bf:01

88:77:73:03:c1:e5:4a:5c:81:4f:58:20:6d:cf:bf:01 = 181395223527710912757353954506106191617 (which is also the result i get from crypto (get_serial_number()).

So why isn't the serial number on the db entry and the certificate itself the same?

/Kristian

[Maryam3107]

@kgrimsby The issue you are experiencing is likely due to the way serial numbers are handled in X.509 certificates.
because in X.509, serial numbers can be quite large and are usually represented as hexadecimal. However in your database, the serial number is seemed to be stored as a decimal value. it might be possible that the serial number is being truncated or rounded due to its decimal property. to resolve this issue you might want to consider storing the serial number as hexadecimal string in your database.
You can also modify the code to handle the conversion between decimal and hexadecimal representations correctly. I hope this will help you