Personalizing the YubiKey PIV application
> Note: The default settings on the YubiKey PIV application are as follows:
```
PIN: 123456 (6-8 characters allowed, macOS requires numeric-only)
PUK: 12345678 (6-8 characters allowed)
Management Key: 010203040506070801020304050607080102030405060708
```

<br>

checked/tested:

```
pcsctest - successful
pkcs11-tool --login --test - works
pkcs11-tool --list-objects - works
system_profiler SPSmartCardsDataType - shows all the certs
sc_auth identities - lists identities
sc_auth pairing_ui -s status - enabled
security list-smartcards - lists the smartcard
security smartcards token -l - is empty
Clean install of macOS - issue still exists
Reset SMC - issue still exists
```

<br>

* [Intro to smart card integration](https://support.apple.com/guide/deployment/intro-to-smart-card-integration-depd0b888248/web)
* [Use a smart card on Mac](https://support.apple.com/guide/deployment/use-a-smart-card-on-mac-depc705651a9/web)
* [Advanced smart card options on Mac](https://support.apple.com/guide/deployment/advanced-smart-card-options-dep7b2ede1e3/web)
* [Configure a Mac for smart card–only authentication](https://support.apple.com/guide/deployment/configure-a-mac-smart-cardonly-authentication-depfce8de48b/1/web/1.0)



<br>

Reference:
1. https://discussions.apple.com/thread/254149417?sortBy=best
1. https://support.yubico.com/hc/en-us/articles/360016649059-Using-your-YubiKey-as-a-smart-card-in-macOS