Convert Certificate Serial Number Hex To Decimal Hot!

However, for system administrators, security analysts, and developers, a common frustration arises when trying to trace or revoke a specific certificate. You might find a serial number represented in one format in your server logs and a completely different format in your Certificate Authority (CA) portal or a revocation list (CRL).

Or using printf :

openssl x509 -in certificate.pem -noout -serial | cut -d= -f2 | tr -d '\n' | while read hex; do echo "ibase=16; $hex" | bc; done convert certificate serial number hex to decimal

>>> hex(45020959711286192935427871657128091169) '0x45e7f3a2b99001d9e442a11873cfa21' for system administrators

Python simplifies the conversion, handling arbitrarily long serial numbers without size limits. do echo "ibase=16

Your challenge is moving from the first format to the second.