Our security model is quite different. It's modular: Shell is kept as simple as possible, while Keycard has the SE.
Thank you for providing answers to our questions, but when I checked the comparison table on your homepage
[screenshot], I was under the impression that Shell also has a SE and it's an open-source one
[it even mentions having its own usages], as opposed to Keycard.
Thx for bringing that up! Parts of that table are confusing. Let us update it.
Essentially, Shell's "Open source secure element" and "Secure element has its own usages" means that Shell "has" Keycard, and Keycard has the SE. And the card itself can even be used standalone, via NFC.
The card can be managed with GlobalPlatform, an open standard. And the JavaCard runtime that is also an open platform with an open API. For a secure element even these two aspects are not a given.
