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Our NFC-based authentication process includes automated checks to verify the authenticity of electronic documents through their embedded NFC chips. This page outlines the potential warnings and errors you might encounter during the NFC verification process.

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NFC Verification Process

When performing NFC-based authentication, the system attempts to:
  • Establish connection with the document’s NFC chip
  • Read and validate the chip’s digital signature
  • Compare the data stored in the chip with the OCR-extracted data
  • Verify the authenticity of the chip using appropriate certificates

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Automatic Decline Conditions

The following conditions will always result in an automatic decline regardless of application settings:
  • NFC_AND_OCR_DATA_NOT_SAME - The Optical Character Recognition (OCR) data and the NFC chip data don’t match

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Configurable Verification Settings

Applications can configure how the system handles various NFC verification issues by setting actions for different risk categories:
  1. Skipped NFC Validation
    • Risks: SKIPPED_NFC_VALIDATION
    • Configurable action: Decline, Review, or Approve
  2. Unverified NFC Chip
    • Risks: NFC_CHIP_NOT_VERIFIED
    • Configurable action: Decline, Review, or Approve
  3. Data Inconsistency
    • Risks: NFC_AND_OCR_DATA_NOT_SAME
    • Configurable action: Decline, Review, or Approve
  4. Document Signer Certificate Revoked
    • Risks: DSC_CERTIFICATE_REVOKED
    • Configurable action: Decline, Review, or Approve
  5. Document Signer Certificate Expired
    • Risks: DSC_CERTIFICATE_EXPIRED
    • Configurable action: Decline, Review, or Approve

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NFC Verification Warnings

TagDescription
SKIPPED_NFC_VALIDATIONThe Near Field Communication (NFC) chip validation process was not completed, potentially due to technical issues or lack of NFC support. This could happen if the user’s device doesn’t support NFC reading or if there were connectivity issues during the verification process.
NFC_CHIP_NOT_VERIFIEDThe Near Field Communication (NFC) chip was not verified, potentially due to missing certificate to verify the signature of the chip, or the chip is designed to not be verified. This might occur with older document types or when the necessary verification certificates are not available.
NFC_AND_OCR_DATA_NOT_SAMEThe Optical Character Recognition (OCR) data and the NFC chip data don’t match, indicating potential document tampering or data inconsistency. This is a serious warning that could indicate document manipulation or forgery.
DSC_CERTIFICATE_REVOKEDThe Document Signer Certificate (DSC) used to sign the ePassport chip data has been revoked by the issuing country’s Certificate Revocation List (CRL), indicating the signing key may have been compromised. This is a serious warning that could indicate a security breach.
DSC_CERTIFICATE_EXPIREDThe Document Signer Certificate (DSC) used to sign the ePassport chip data has expired, meaning the certificate’s validity period has passed. This may occur with older documents whose signing certificates are no longer within their validity window.

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Warning Types

Each risk is assigned a warning type based on your application’s configuration settings. Warnings fall into three severity categories: