[retrocryptid]

I couldn't find reference to quintrophy or quintrophy1x in the IACR eprint archive (or on a google search.) And I think you forgot the references to external review.

[uws]

Thanks for your comment! As this is a brand-new project, it hasn’t been submitted to the IACR ePrint Archive yet, and there’s no prior mention of it there or in broader searches, being that it’s a fresh release. We built this as an original implementation to push the boundaries of encryption strength with a 512-bit key and custom transformations, and I’m excited to share it with the community here first.