eID & NFC Document Trust — from access control to evidence
Separates ICAO Doc 9303 ePassport/eMRTD from national CCCD/eID; BAC/PACE and Passive/Active/Chip Authentication are published only where source-backed.
Credential profiles require different trust mechanisms
ePassports, national eIDs and VNeID/RAR-C06 services are not interchangeable trust profiles. Each profile is published only against its own authoritative specification and service scope.
| Profile | Source / standard | Trust mechanisms | CheckID publication rule |
|---|---|---|---|
| ePassport / eMRTD | ICAO Doc 9303 | MRZ · LDS · SOD · PKI · PA · AA/CA where document/profile supports them | Publish against ICAO capability status and actual implementation evidence |
| CCCD / national eID | National profile + authoritative services | NFC / national data / government authentication as sourced | Do not infer ICAO mechanisms when the national specification differs. |
| VNeID | RAR/C06 ecosystem | SSO / ShareInfo / authorized attributes by service scope | Source, consent/authorization and legal/service scope are explicit |
Do not collapse all chip documents into one standard
Follows ReadID-grade technical storytelling as a benchmark while publishing only CheckID capabilities actually evidenced.
Document trust is more than reading a chip
Separates access control, signed data, issuer trust and holder verification.
Document data
MRZ/CAN/chip data are inputs; issuer, profile and document type must be identified.
Document authenticity
Passive Authentication and additional clone-resistance mechanisms where supported by profile.
Issuer trust
PKI trust chain determines which certificate and trust anchor are accepted.
Holder verification
Bind the trusted document identity to the live holder through the applicable biometric process.
Optical documents, eID chips and ICAO eMRTDs use different trust models
NFC is a capture/transport path. Public content distinguishes optical checks, chip/credential trust and ICAO eMRTD trust while preserving provenance for each result.
| Path | Primary input | Trust question | Holder binding |
|---|---|---|---|
| Optical document | Image/MRZ/text/security features where supported | Which readability/consistency/authenticity checks are sourced? | Portrait ↔ live biometric when required |
| Electronic ID | Chip/contactless credential by national profile | Which profile establishes credential/chip trust? | Depends on profile/journey |
| ICAO eMRTD | MRZ, LDS, SOD, signer chain | Data-group hash + DSC/CSCA trust where supported | DG2 portrait ↔ live biometric is separate |
ICAO boundary
DG1/DG2/SOD/DSC/CSCA and Passive Authentication belong to the eMRTD model; they are not automatically applicable to every national ID.
National eID boundary
CCCD/eID is described by its credential/profile and authority source; NFC does not automatically mean online government verification.
Evidence separation
Chip integrity, signer trust, extracted attributes, portrait matching and authoritative-source results are separate evidence/results.
Failure taxonomy
Unreadable chip, unsupported credential, untrusted signer, hash mismatch, biometric mismatch and unavailable source remain distinct where the contract exposes them.
