== Key Delete
    $ yubico-piv-tool -a delete-key -s <slot> -k

=== Description
Deletes a key from the specified PIV slot. The function requires YubiKey 5.7 or higher.

NOTE: This actions deletes only the key, not the certificate. So if the slot already stores a certificate, it
might still look populated even if the key is no longer there.

Deleting a key is an action that requires authentication, which is done
by providing the management key. If no management key is provided, the tool will try to authenticate
using the default management key.footnote:[It is strongly recommended to change the Yubikey's PIN, PUK and
management key before start using it.]

=== Parameters

|===================================
|Parameter          | Required | Optional | Description | Possible values | Default value

|-s, --slot         | X | | What key slot to delete the key from | 9a, 9c, 9d, 9e, 82, 83, 84, 85, 86, 87, 88, 89,
8a, 8b, 8c, 8d, 8e, 8f, 90, 91, 92, 93, 94, 95, f9 |
|-k, --key          | X | | Management key to use, if no value is specified key will be asked for | | 010203040506070801020304050607080102030405060708
|===================================

=== Examples

    $ yubico-piv-tool -a delete-key -s 9c -k
    Enter Password:
    Enter management key:
    Successfully deleted key.

