Cisco Cisco IOS XE 3.5E

Purpose

Command or Action

Displays the software public keys that are in storage with the
key types for digitally signed Cisco software.

show software authenticity keys

Example:

Device# show software authenticity keys

Step 2

Troubleshooting Digitally Signed Cisco Software Images

Perform this task to troubleshoot digitally signed Cisco software images.

Procedure

Purpose

Command or Action

Enables privileged EXEC mode.

enable

Step 1

Example:

Device> enable

• Enter your password if prompted.

Enables the display of debug messages for digitally
signed Cisco software.

debug software- authenticity errors {envelope | errors |
key | revocation | show | verbose}

Example:

Device# debug software-authenticity errors

Step 2

Configuration Examples for Digitally Signed Cisco Software

Identifying Digitally Signed Cisco Software Example

The following example displays the digitally signed Cisco software image filename and allows a user to identify it based on the
digitally signed Cisco software identification criteria:

Device#

show version

Cisco IOS Software, C3900 Software (C3900-UNIVERSALK9-M),
12.4(20090904:044027) [i12 577]
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Fri 04-Sep-09 09:22 by xxx
ROM: System Bootstrap, Version 12.4(20090303:092436)
C3900-2 uptime is 8 hours, 41 minutes
System returned to ROM by reload at 08:40:40 UTC Tue May 21 1901!
System image file is "xxx.SPA"
Last reload reason: Reload Command
This product contains cryptographic features and is subject to United