From mDL to KYC, identity verification has its own vocabulary. Each entry in the glossary is a definition plus the standards that govern it.
All terms
ISO/IEC 18013-5
ISO/IEC 18013-5:2021 explained: mdoc data, MSO issuer signing, QR/NFC/BLE retrieval, selective disclosure, and its relationship to 18013-7 for web presentation.
OpenID4VP
OpenID4VP - OpenID for Verifiable Presentations: how wallets present digital credentials to verifiers, why it matters for mDL, EUDI Wallet, selective disclosure, and how Stile verifies wallet-issued credentials through one integration.
PII
PII — personally identifiable information: how the category is scoped under GDPR, CCPA, and US state law, and what minimization looks like in an identity-verification flow.
Selective disclosure
Selective disclosure explained: how SD-JWT and mdoc wallets reveal selected credential fields, key privacy limits, and how it differs from ZKPs.
Synthetic identity fraud
Learn how synthetic identity fraud combines real and fabricated data, why single checks miss it, and which layered signals help detect it early.
Zero-knowledge proof (ZKP)
Zero-knowledge proof (ZKP) explained: proving an age claim without revealing the birth date, the difference from selective disclosure, and key limits.
eIDAS2
eIDAS2 — Regulation (EU) 2024/1183 and the European Digital Identity Wallet: how the framework works, the December 2026 member-state deadline, privacy-preserving age verification, and how Stile verifies wallet-issued credentials.
iBeta PAD
iBeta PAD Level 1 and Level 2 explained: how ISO/IEC 30107-3 testing evaluates presentation-attack resistance, attacker effort, limits, and scope.
mDL
mDL — mobile driver's license per ISO/IEC 18013-5: how the standard works, what selective disclosure means in practice, and how Stile verifies mDL credentials from Apple Wallet and Google Wallet.