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Update ykman set-touch instructions

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Omar Kotb 2023-05-15 10:52:19 +03:00
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@ -2675,37 +2675,38 @@ $ ykman openpgp keys set-touch sig on
Encryption:
```console
$ ykman openpgp keys set-touch enc on
$ ykman openpgp keys set-touch dec on
```
**Note** Versions of YubiKey Manager before 5.1.0 use `enc` instead of `dec` for encryption.
Depending on how the YubiKey is going to be used, you may want to look at the policy options for each of these and adjust the above commands accordingly. They can be viewed with the following command:
```
$ ykman openpgp keys set-touch -h
Usage: ykman openpgp keys set-touch [OPTIONS] KEY POLICY
Set touch policy for OpenPGP keys.
Set the touch policy for OpenPGP keys.
KEY Key slot to set (sig, enc, aut or att).
POLICY Touch policy to set (on, off, fixed, cached or cached-fixed).
The touch policy is used to require user interaction for all operations using the private key on the YubiKey. The touch policy is set individually for each key slot. To see the current touch policy, run
$ ykman openpgp info
The touch policy is used to require user interaction for all operations using the private key on the YubiKey. The touch policy is set
individually for each key slot. To see the current touch policy, run the "openpgp info" subcommand.
Touch policies:
Off (default) No touch required
On Touch required
Fixed Touch required, can't be disabled without a full reset
Cached Touch required, cached for 15s after use
Cached-Fixed Touch required, cached for 15s after use, can't be disabled
without a full reset
Off (default) no touch required
On touch required
Fixed touch required, can't be disabled without deleting the private key
Cached touch required, cached for 15s after use
Cached-Fixed touch required, cached for 15s after use, can't be disabled
without deleting the private key
KEY key slot to set (sig, dec, aut or att)
POLICY touch policy to set (on, off, fixed, cached or cached-fixed)
Options:
-a, --admin-pin TEXT Admin PIN for OpenPGP.
-f, --force Confirm the action without prompting.
-h, --help Show this message and exit.
-a, --admin-pin TEXT Admin PIN for OpenPGP
-f, --force confirm the action without prompting
-h, --help show this message and exit
```
If the YubiKey is going to be used within an email client that opens and verifies encrypted mail, `Cached` or `Cached-Fixed` may be desirable.