E-Passport Security: How Chip Data Protects Identity in 2026

Modern e-passports contain an NFC chip with cryptographically signed data. The security model has held for nearly two decades, and cloning a chip without breaking a country's signing key remains practically impossible.

Key security mechanisms

• Basic Access Control (BAC) and PACE: key derivation from printed data
• Passive Authentication: digital signature over chip data verified against CSCA certificates
• Active Authentication: chip proves it holds a private key that cannot be extracted
• Extended Access Control (EAC): protects biometric data with stronger keys

Cloning is not the real risk

Cloning the chip is hard. The real risk is chip substitution: replacing a genuine chip with a fake one on a forged passport. Active authentication defeats this, which is why we require it in our NFC passport reading product.

Future-proofing

The ICAO 9303 standard is evolving toward quantum-resistant cryptography. Our NFC passport reading product updates CSCA certificates continuously to stay ahead.