1 /*
2 Package x448 provides Diffie-Hellman functions as specified in RFC-7748.
3 4 Validation of public keys.
5 6 The Diffie-Hellman function, as described in RFC-7748 [1], works for any
7 public key. However, if a different protocol requires contributory
8 behaviour [2,3], then the public keys must be validated against low-order
9 points [3,4]. To do that, the Shared function performs this validation
10 internally and returns false when the public key is invalid (i.e., it
11 is a low-order point).
12 13 References:
14 - [1] RFC7748 by Langley, Hamburg, Turner (https://rfc-editor.org/rfc/rfc7748.txt)
15 - [2] Curve25519 by Bernstein (https://cr.yp.to/ecdh.html)
16 - [3] Bernstein (https://cr.yp.to/ecdh.html#validate)
17 - [4] Cremers&Jackson (https://eprint.iacr.org/2019/526)
18 */
19 package x448
20