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InfluxDB
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Besides the BU team that you mentioned, I am familiar with Andrew Miller's work at UIUC. He has an NSF grant to work on this kind of stuff -- check out this and this. See also this. Your target of the OPAQUE protocol sounds quite ambitious -- in general, the PAKE/AKE functionalities are incredibly complicated and subtle (so I guess they are good targets for formalization). Maybe start with simple UC and more traditional MPC protocols (assuming secure peer-to-peer channels)?
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