Curve25519 implementation for javascript? [closed]

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Is there a curve25519 implementation for javascript available?

It needs to be able to both sign and verify. Only thing I've found just signs.

Answer 1

Curve25519 implements Diffie-Hellman key exchange; it doesn't sign or verify anything, it only generates a shared key via scalar multiplication. If you're looking for signatures, use Ed25519, which is an implementation of Schnorr signature algorithm on the same elliptic curve.

Here are links to some JavaScript implementations of both Curve25519 and Ed25519:

• http://www.flownet.com/ron/code/ (GPL license)
• https://github.com/tonyg/js-nacl (compiled with Emscripten)

Answer 2

You can use this (https://github.com/rev22/curve255js) implementation