{
  "url": "https://proudtek.com/solutions/hotel-key-cards/",
  "sourceUrl": "https://proudtek.com/solutions/hotel-key-cards/",
  "title": "Hotel Key Cards — Lock-Compatible RFID Supply",
  "description": "Procurement-grade hotel key card guide for properties on the seven major hotel-lock platforms. Maps the chip-family decision (MIFARE Classic 1K / Plus...",
  "kind": "article",
  "imageUrl": "https://proudtek.com/landing-images/hero/solutions-hotel-key-cards.webp",
  "imageAlt": "Stack of branded hotel RFID key cards — PVC, FSC bamboo, FSC wood and recycled-PVC variants ready for encoding",
  "imageGallery": [
    {
      "url": "https://proudtek.com/landing-images/hero/solutions-hotel-key-cards.webp",
      "alt": "Stack of branded hotel RFID key cards — PVC, FSC bamboo, FSC wood and recycled-PVC variants ready for encoding"
    }
  ],
  "breadcrumbs": [
    {
      "name": "Home",
      "url": "https://proudtek.com/"
    },
    {
      "name": "Solutions",
      "url": "https://proudtek.com/solutions/"
    },
    {
      "name": "Hotel Key Cards — Lock-Compatible RFID Supply",
      "url": "https://proudtek.com/solutions/hotel-key-cards/"
    }
  ],
  "summary": [
    "Procurement-grade hotel key card guide for properties on the seven major hotel-lock platforms."
  ],
  "faq": [
    {
      "question": "How do I know which chip my hotel locks accept?",
      "answer": "Three indicators usually settle it: (1) the visible lock-face badge — Saflok Quantum, Vingcard Signature, SALTO XS4 One, Onity Trillium each have distinct branding; (2) the encoder at the front desk (Encoder 4010, Saflok 75720, SALTO NCoder, Onity Encoder 4000); (3) the back-end software console (Visionline / Vostio / Ambiance / SALTO Space / OnPortal). If all three are unclear, send a current guest card sample to the supplier for an inspection read before committing to a production chip. The per-vendor compatibility guides at /compatibility/ give the full taxonomy."
    },
    {
      "question": "Should new hotel estates still order MIFARE Classic 1K stock in 2026?",
      "answer": "Only as a documented transitional step, not as a long-term target. Three converging issues make Classic a 2026 procurement risk: (1) the Crypto-1 cipher is publicly broken industry-wide; (2) the August 2024 Quarkslab disclosure of a hardware backdoor in Fudan FM11RF08 / FM11RF08S MIFARE Classic clones means cloned card stock can be cracked in roughly two minutes; (3) the March 2024 Unsaflok disclosure (CVE-2024-29916) exposed properties on unpatched Saflok firmware. New estates should standardise on MIFARE DESFire EV3 (AES-128, EAL5+) or MIFARE Plus in SL3 mode (AES-128). For paper guest cards, MIFARE Ultralight AES (CC EAL3+, announced 2024) is the new low-cost AES option."
    },
    {
      "question": "Is the 2024 Saflok Unsaflok vulnerability still a concern for new card orders?",
      "answer": "Yes for properties not yet on the post-November-2023 remediated firmware. CVE-2024-29916 was disclosed in March 2024 by Lennert Wouters (KU Leuven COSIC) and Ian Carroll. The proprietary Saflok KDF used only the card UID as input, allowing an attacker who could read any legitimate guest card to forge a write-pair that opened every door at the property. Roughly 3 million doors at 13,000+ properties in 131 countries were affected; the remediation is a door-controller firmware update that dormakaba began shipping November 2023. As of disclosure ~36% of locks were remediated. A new card order does not by itself remediate or expose the issue. Confirm with dormakaba service that any Saflok MT / Confidant / Quantum-era doors in scope are on the remediated firmware before scaling card stock; new estates can sidestep the affected MIFARE Classic surface entirely by standardising on DESFire EV3."
    },
    {
      "question": "Can one card SKU cover multiple lock vendors in a mixed-vendor estate?",
      "answer": "Partially. MIFARE Classic 1K reads on every hotel-lock vendor's current reader heads (subject to the security caveats above). MIFARE Plus in SL1 mode is Classic-compatible across major vendors. MIFARE DESFire EV3 reads on Saflok Messenger LENS / Quantum Plus / Pixel, Vingcard Signature / Allure / Essence reader-type 3G+, SALTO XS4 One / Mini / AElement Fusion / Neo BLE, Onity Trillium (where Onity confirms), MIWA ALV3 / V3HTM. EV3 does NOT read on Vingcard E100 / C100 reader variants. The pragmatic multi-vendor strategy: MIFARE Plus EV2 in SL3 mode for the broadest envelope, or a phased per-vendor rollout that targets DESFire EV3 where supported."
    },
    {
      "question": "Will FSC bamboo or FSC wood hotel cards read reliably with DESFire EV3 inlays?",
      "answer": "Yes on current-generation reader heads (Vingcard Signature / Allure / Essence reader-type 3G+, SALTO XS4 One / AElement Fusion, Saflok Messenger LENS / Quantum Plus / Pixel). Bamboo and wood cards typically read at 0.85–0.95× the distance of equivalent PVC inlays. On older reader heads (Vingcard Classic, SALTO XS4 Original, Saflok Quantum IV) bamboo / wood inlays can be marginal — pilot a production-thickness sample on the actual hardware before scaling. SALTO and ASSA ABLOY both publish their own bamboo guest-card SKUs; \"Approved Vingcard vendor\" / \"Approved ASSA ABLOY vendor\" badges in supplier documentation are real procurement signals for chain RFPs."
    },
    {
      "question": "What is the difference between MIFARE Plus SL1 and SL3 mode?",
      "answer": "SL1 is the Classic-compatible mode — the Plus card behaves on the wire exactly like a Classic 1K card and shares the Crypto-1 cryptographic surface. Useful as a like-for-like Classic upgrade. SL3 is the AES-128 authenticated-session mode — the Plus card runs proper AES mutual authentication with the reader. Most current Vingcard, Saflok and SALTO reader heads accept Plus in SL3 mode; older Onity HT-RFID and ADVANCE reader heads often only accept Plus in SL1. Confirm SL3 support with vendor service before scaling. SL3 is the security tier most procurement teams should target on a Plus migration."
    },
    {
      "question": "How does Oracle OPERA Cloud key encoding work with hotel-lock vendors in 2026?",
      "answer": "OPERA Cloud uses the `roomKeysOutbound` configuration with a GUESTKEY_GENERIC outbound type. The action enum covers New, Duplicate, One-shot, Read and Delete key. The OPERA-side connector is the same shape across major hotel-lock vendors; the vendor-specific component is the local encoding agent (Saflok HMS, Vingcard Dialock HMS for Mews, SALTO Local IO Bridge, OnPortal for Onity) that runs on the front-desk PC and bridges the cloud PMS to the USB encoder hardware. Confirm both the OPERA connector version and the vendor agent version after any PMS upgrade — they need to match."
    },
    {
      "question": "What sustainability certifications should be in a 2026 hotel-card RFP?",
      "answer": "Four certifications cover most chain audit clauses: (1) Forest Stewardship Council chain-of-custody (FSC-STD-40-004) for any bamboo or wood card claim; (2) Global Recycled Standard (GRS) ≥50% recycled content for any recycled-PVC claim; (3) TÜV Austria OK biobased (EN 16640) for PLA bio-based content; (4) BPI ASTM D6868 / ASTM D6400 compostability for any biodegradable claim. Cite the certifying body in the supplier's response, not just the supplier's own marketing language — chain procurement audit teams look for the cert number, not the brand claim."
    },
    {
      "question": "Can I order cards without sharing the lock's site keys?",
      "answer": "Yes for blank stock that the property's encoder will program at the front desk. For pre-encoded cards (factory-programmed with site keys for shorter front-desk arrival workflows), the supplier needs to receive the site keys under a secure key-transport mechanism. dormakaba, ASSA ABLOY, SALTO and Onity all have established key-injection workflows for approved card suppliers. Most properties choose blank stock for the first sample round and only graduate to pre-encoding once the front-desk operational flow is validated."
    }
  ],
  "procurementFields": [],
  "collectionGuidanceFields": [],
  "coreGuidanceFields": [],
  "articleGuidanceFields": [
    {
      "label": "Best for",
      "value": "Hotel Key Cards — Lock-Compatible RFID Supply supports RFID and NFC evaluation, comparison, and sourcing decisions."
    },
    {
      "label": "Compare first",
      "value": "Compare Hotel Key Cards — Lock-Compatible RFID Supply against reader compatibility, chip family, material, and deployment environment."
    },
    {
      "label": "What to confirm",
      "value": "Confirm target application, compatibility requirements, customization needs, quantity, and sample expectations before quoting Hotel Key Cards — Lock-Compatible RFID Supply."
    }
  ],
  "sourceLinks": [],
  "related": [],
  "productSpecs": [],
  "machineJsonUrl": "https://proudtek.com/machine/solutions/hotel-key-cards.json",
  "machineTextUrl": "https://proudtek.com/machine/solutions/hotel-key-cards.txt",
  "author": {
    "name": "Mia Li",
    "title": "Quality & Manufacturing Engineer, ProudTek",
    "expertise": [
      "RFID card materials",
      "Hotel key card manufacturing",
      "Compliance (ISO, CE, RoHS)",
      "Laundry tag durability"
    ]
  },
  "publisher": "Proud Tek Co., Limited",
  "datePublished": "2026-04-22",
  "dateModified": "2026-06-11T11:00:00Z",
  "reviewedBy": "Proud Tek Editorial Team",
  "lastReviewedDate": "2026-06-11T11:00:00Z",
  "credentials": [
    "ISO 9001:2015",
    "ISO 14001:2015",
    "RoHS Compliant",
    "CE Marking",
    "REACH Compliant"
  ],
  "generatedAt": "2026-03-16T01:42:30.697Z"
}