{ "name": "Public-key infrastructure", "order": 31, "challenges": [ { "id": "59a5801209a6acac5983b696", "title": "Introduction to Public-key infrastructure", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] }, { "id": "59a5801209a6acac5983b292", "title": "A practical protocol: Secure socket layer", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] }, { "id": "59a5801209a6acac5983b293", "title": "Certificates", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] }, { "id": "59a5801209a6acac5983b294", "title": "Certificate life-cycle management", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] } ] }