[ProtoAES256]

In the Chinese world, it's still called the equivalent of 2D code in Chinese(二維碼/二维码). The original variant QR Code(QR碼/QR码) are used but to the best of my knowledge they are quite mixed together in terms of usage.

I think the mainland Chinese are more inclined to 2D code by the interactions with them in the past.

[tough]

3D codes will be rad

[smashed]

Could be something like "2d barcode" that got shortened to "2d code" cause there was not really any bars.