ePassport Security: A Deep Dive into BAC, PAC, and SAC
Blog post from Didit
ePassports, or electronic passports, incorporate advanced cryptographic security protocols such as Basic Access Control (BAC), Password Authenticated Connection Establishment (PACE), and Supplemental Access Control (SAC) to safeguard the biometric and biographical data stored on their embedded microchips. These protocols are essential to thwart unauthorized access, data manipulation, cloning, and eavesdropping, ensuring that only authorized readers can verify the passport holder's identity securely. BAC, the initial security layer, relies on the Machine Readable Zone (MRZ) for establishing an encrypted communication channel, but its limitations have led to the adoption of more robust protocols like PACE and SAC, which offer stronger cryptographic measures and mutual authentication. Didit's NFC Verification technology leverages these protocols to perform comprehensive cryptographic validation, ensuring data integrity and authenticity by reading secure chips via NFC-enabled mobile devices. By integrating these security measures, Didit offers a developer-first platform that provides tamper-proof identity verification services, which are ISO 27001 certified and GDPR compliant, enabling businesses to automate and scale secure identity verification processes effectively.
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