6.1.9.3 show fw-upgrade signature_options

It shows the Firmware upgrade signature options: 

show  fw-upgrade  signature_options
Firmware Upgrade Signature 0 with length 0
The signature values are:
  • 0: No signature
  • 1: RSA-SHA signature
  • 2: ECDSA-SHA signature

The signature length depends on the firmware binary size and signature (0 if no signature).