Add OPAQUE (RFC 9807) to Cryptography Registry

[Mehrn0ush]

Summary

OPAQUE is currently missing from schema/cryptography-defs.json. Please add an entry for OPAQUE-3DH, standardized in RFC 9807.

Spec reference

• RFC 9807 (OPAQUE aPAKE): https://doi.org/10.17487/RFC9807

Note: RFC 9380 is Hashing to Elliptic Curves and is referenced as a building block, but it is not the OPAQUE protocol specification.

Proposed registry entry

Insert the following object into algorithms[] in schema/cryptography-defs.json, alphabetically between MQV and MILENAGE:

{
  "family": "OPAQUE",
  "standard": [
    {
      "name": "RFC9807",
      "url": "https://doi.org/10.17487/RFC9807"
    }
  ],
  "variant": [
    {
      "pattern": "OPAQUE-3DH[-{group}][-{hashFunction}]",
      "primitive": "key-agree"
    }
  ]
}

[stevespringett]

cc: @bhess