"keysigning" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "key",
        "3": "signing"
      },
      "expansion": "key + signing",
      "name": "com"
    }
  ],
  "etymology_text": "key + signing",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "keysigning (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Cryptography",
          "orig": "en:Cryptography",
          "parents": [
            "Computer science",
            "Formal sciences",
            "Mathematics",
            "Computing",
            "Sciences",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The process of digitally signing someone else's public key using one's own."
      ],
      "id": "en-keysigning-en-noun-acUx50hN",
      "links": [
        [
          "cryptography",
          "cryptography"
        ],
        [
          "digitally signing",
          "digital signature"
        ],
        [
          "public key",
          "public key"
        ]
      ],
      "raw_glosses": [
        "(cryptography) The process of digitally signing someone else's public key using one's own."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "computing",
        "cryptography",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ]
    }
  ],
  "word": "keysigning"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "key",
        "3": "signing"
      },
      "expansion": "key + signing",
      "name": "com"
    }
  ],
  "etymology_text": "key + signing",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "keysigning (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English uncountable nouns",
        "en:Cryptography"
      ],
      "glosses": [
        "The process of digitally signing someone else's public key using one's own."
      ],
      "links": [
        [
          "cryptography",
          "cryptography"
        ],
        [
          "digitally signing",
          "digital signature"
        ],
        [
          "public key",
          "public key"
        ]
      ],
      "raw_glosses": [
        "(cryptography) The process of digitally signing someone else's public key using one's own."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "computing",
        "cryptography",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ]
    }
  ],
  "word": "keysigning"
}