trezor-agent/doc/README-PINENTRY.md
2018-04-08 16:33:34 +03:00

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# Custom PIN entry
In order to use the default GPG pinentry program, install one of the following Linux packages:
```
$ apt install pinentry-{curses,gnome3,qt}
```
or (on macOS):
```
$ brew install pinentry-mac
```
By default a standard GPG PIN entry program is used when entering your Trezor PIN, but it's difficult to use if you don't have a numeric keypad or want to use your mouse.
You can specify a custom PIN entry program such as [trezor-gpg-pinentry-tk](https://github.com/rendaw/trezor-gpg-pinentry-tk) (and separately, a passphrase entry program) to match your workflow.
The below examples use `trezor-gpg-pinentry-tk` but any GPG compatible PIN entry can be used.
##### 1. Install the PIN entry
Run
```
pip install trezor-gpg-pinentry-tk
```
##### 2. SSH
Add the flag `--pin-entry-binary trezor-gpg-pinentry-tk` to all calls to `trezor-agent`.
To automatically use this flag, add the line `pinentry=trezor-gpg-pinentry-tk` to `~/.ssh/agent.config`. **Note** this is currently broken due to [this dependency issue](https://github.com/bw2/ConfigArgParse/issues/114).
If you run the SSH agent with Systemd you'll need to add `--pin-entry-binary` to the `ExecStart` command. You may also need to add this line:
```
Environment="DISPLAY=:0"
```
to the `[Service]` section to tell the PIN entry program how to connect to the X11 server.
##### 3. GPG
If you haven't completed initialization yet, run:
```
$ (trezor|keepkey|ledger)-gpg init --pin-entry-binary trezor-gpg-pinentry-tk "Roman Zeyde <roman.zeyde@gmail.com>"
```
to configure the PIN entry at the same time.
Otherwise, open `$GNUPGHOME/trezor/run-agent.sh` and change the `--pin-entry-binary` option to `trezor-gpg-pinentry-tk` and run:
```
killall trezor-gpg-agent
```
##### 4. Troubleshooting
Any problems running the PIN entry program with GPG should appear in `$HOME/.gnupg/trezor/gpg-agent.log`.
You can get similar logs for SSH by specifying `--log-file` in the SSH command line.
The passphrase is cached by the agent (after its first entry), which needs to be restarted in order to reset the passphrase:
```
$ killall trezor-agent # (for SSH)
$ killall trezor-gpg-agent # (for GPG)
```