CONFERENCE METADATA — incomplete historical coverage; source presence is not proof of delivery.
Research dataset: Lukas Walter, Clemens Sauerwein, Daniel Woods, InfoSec.pptx, https://doi.org/10.5281/zenodo.15989593, CC BY 4.0 https://creativecommons.org/licenses/by/4.0/. Changes: metadata extraction, exact-match reconciliation and uncertainty flags. No endorsement implied.

{
  "id": "defcon-index-23-a5e12acfb8c95368",
  "title": "Let's Encrypt - Minting Free Certificates to Encrypt the Entire Web",
  "presenters": [
    "Peter Eckersley",
    "James Kasten",
    "Yan Zhu"
  ],
  "event": "DEF CON 23",
  "year": "2015",
  "source_url": "https://infocondb.org/con/def-con/def-con-23/lets-encrypt-minting-free-certificates-to-encrypt-the-entire-web",
  "source_kind": "Independent InfoconDB index",
  "source_file": "infocondb-def-con-23.html",
  "rights": "Metadata and source links only; abstracts, biographies, transcripts and media not republished",
  "delivery_status": "Not independently verified",
  "title_status": "source supplied",
  "presenter_status": "research dataset; independent index title match",
  "media": [

  ],
  "provenance": [
    {
      "file": "infocondb-def-con-23.html",
      "url": "https://infocondb.org/con/def-con/def-con-23/",
      "source_kind": "secondary independent index",
      "sha256": "f28fe11609199444e4cfca4d10c3cd84f45667da8d8a7e51b7edcd7f9c3231b8",
      "checked": "2026-10-16T03:48:37Z"
    },
    {
      "raw_title": "Let's Encrypt - Minting Free Certificates to Encrypt the Entire Web",
      "raw_agenda": "08.08.2015",
      "date_conflict": false,
      "url": "https://doi.org/10.5281/zenodo.15989593",
      "file": "speaker_infosec.csv",
      "rows": [
        9611,
        9612,
        9613
      ],
      "sha256": "e47480bc376a20292a4f6fd990be7b687f43ff0bfb861267c5533cebf3114d46",
      "attribution": "Lukas Walter, Clemens Sauerwein, Daniel Woods; InfoSec.pptx dataset; CC-BY-4.0; extracted metadata, omitted abstracts and automated classifications",
      "license": "https://creativecommons.org/licenses/by/4.0/"
    }
  ],
  "date": "2015-08-08",
  "research_credit_rows": [
    {
      "presenter": "Peter Eckersley",
      "role": "Chief Computer Scientist",
      "affiliation": "Electronic Frontier Foundation",
      "row": 9611
    },
    {
      "presenter": "James Kasten",
      "role": "Phd student",
      "affiliation": "Electronic Frontier Foundation / University of Michgan",
      "row": 9612
    },
    {
      "presenter": "Yan Zhu",
      "role": "security engineer / technology fellow",
      "affiliation": "Electronic Frontier Foundation / Yahoo",
      "row": 9613
    }
  ]
}