!!! Overview
[{$pagename}] ([X25519]) is defined in [RFC 7748] and is an [Elliptic Curve] offering 128 [bits] of security and designed for use with the [Elliptic Curve Diffie–Hellman|Elliptic Curve Diffie-Hellman] ([ECDH]) [Key-Exchange] scheme. 

[{$pagename}] is one of the fastest [ECC] curves; it is not covered by any known patents, The reference implementation is [Public Domain] software.

The original [Curve25519] paper defined it as a [Diffie-Hellman] ([DH]) function. Daniel J. Bernstein has since proposed that the name [Curve25519] be used for the underlying curve, and the name [X25519] for the [Diffie-Hellman] function.

!! More Information
There might be more information for this subject on one of the following:
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* [#1] - [Curve25519|Wikipedia:Curve25519|target='_blank'] - based on information obtained 2017-06-17-