[curves] General Curve25519 and Ed25519 Libraries

[Thomas DuBuisson]

Frank,
A lot of recommendations are pouring in about C and Java libraries, on
top of which I'm tempted to recommend my own in Cryptol or one of the
Sage version out there, but none of us have heard about your actual
goal and needs.  Could you say more about how this code will be used
and what you hope to achieve?

Thomas

On Wed, Jun 17, 2015 at 2:16 PM, Frank Wang <frankw at mit.edu> wrote:
> Hi,
>
> I am working on a research project at MIT, and I need to use elliptic curves
> (or a group where DDH is hard, but elliptic curves seem like the best way to
> go) to implement a cryptographic scheme. I've been trying to search for
> general Curve25519 and Ed25519 libraries where I can just do add and scalar
> multiply as well as hash messages to points. The best library I've come
> across so far is tweetnacl, which has the add and scalar multiply operation
> for Ed25519, but it's a bit difficult to use, and I end up modifying the
> library to do subtraction of points.
>
> I have yet to find a good library that allows me to just do operations on
> Ed25519 or Curve25519. Does such a library exist? If not, any tips on what I
> should do? Should I just use another curve library that is better supported?
> If so, any suggestions?
>
> Thanks,
> Frank
>
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