Convert Certificate Serial Number Hex To Decimal Extra Quality

Remove colons → 045e7f3a2b99001d9e442a11873cfa21

OpenSSL recognizes the 0x prefix as hexadecimal. It is fast, accurate, and works on Linux, macOS, and Windows (via WSL or Git Bash). convert certificate serial number hex to decimal

echo "ibase=16; 1A2B3C4D" | bc

Certificate serials are often displayed with colons every two bytes ( 04:5e:7f:3a ). – otherwise, the converter will read them as invalid hex characters. and works on Linux