We are looking to move our operator and manager users (local users configured on switch) to be from sha1 to plaintext. Is there a way to decrypt the password so it will show the plaintext version? Currently encrypted-credentials is not configured on the switch.
We have 3810M's and 2930M/F's with code KB/WC.16.08.0001.
There is no (practical) way to decrypt/recover a SHA1 hashed password. The whole purpose of SHA1 is to be irreversible.
What you can do is set a new password, and depending on the situation you might copy the encrypted password in encrypted form from the config to another switch.
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