Why no ED25519 curve support for .NET Compact Framework 3.5?

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asked Nov 16, 2019 by mobile653 (500 points)

Why is the Ed25519 plugin not implemented for .NET CF 2.0/3.5, when using the Rebex HTTPS Legacy Library with the Open Source Simple Elliptic Curve Libraries?

Is is simply not implemented yet, because no one asked for it, or would it be too much afford – or is the implementation expected to be too slow on the .NET CF 2.0/3.5 devices?

1 Answer

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answered Nov 18, 2019 by Lukas Pokorny (114,070 points)

Update: Ed255519 plugin for .NET CF based on Christian Winnerlein's Chaos.NaCl library is now available at Rebex Labs.

The current version Ed25519 plugin is based on a C++/CLI implementation, which is not supported on .NET Compact Framework.

Additionally, demand for Ed25519 on .NET CF has been very low.