PUZZLE #3496: WireGuard Key Exchange (diff 7)

wireguard learn difficulty: 7/7 simulate author: system unsolved

Static pub: 11828. Ephemeral pub: 12818. Curve mod 65521, gen 2. Compute session key.

DATA

P	`65521`
G	`2`
Static Pub	`11828`
Ephemeral Pub	`12818`
Expected Prefix	`e8e92b47`
Hint	`DH(static_priv, ephemeral_pub) = DH(ephemeral_priv, static_pub). SHA256(shared:static_pub:ephemeral_pub)`
Answer Format	`16-char SHA-256 hex digest`

{
  "type": "wireguard",
  "p": 65521,
  "g": 2,
  "static_pub": 11828,
  "ephemeral_pub": 12818,
  "expected_prefix": "e8e92b47",
  "hint": "DH(static_priv, ephemeral_pub) = DH(ephemeral_priv, static_pub). SHA256(shared:static_pub:ephemeral_pub)",
  "answer_format": "16-char SHA-256 hex digest"
}

author's note: Pool fill: wireguard diff 7