QEAACert Sovereign Trust Core

QEAACert delivers deep architectural specifications for sovereign digital identity, EUDI Wallet Architecture & Reference Framework (ARF), Qualified Trust Service Providers (QTSP), and Zero-Knowledge selective disclosure.

QEAACert System Architecture

Sovereign Trust Core: QEAA Trust Issuance & Certification Hub — eIDAS 2.0 Article 45f Attribute Attestation, University Degrees, Driving Licenses & Tax IDs

Subsystems & Cryptographic Modules

eIDAS Article 45f Qualified Attribute Attestation Issuer
Authoritative Registry Connector (PAdES / SD-JWT)
Attribute Revocation Status Publisher (Bitstring StatusList)
Semantic Data Schema Mapping Engine (JSON-LD / W3C)
Public-Private Sector Cross-Attestation Bridge

Architectural Layers & Ingress Bus

Layer 1: Hardware Cryptographic Enclave & Keystore (Common Criteria EAL6+ / eSE / TEE / FIPS 140-3 Level 4 / Hardware Root-of-Trust): Hardware key generation, tamper-resistant memory storage, and device-bound biometric attestation satisfying LoA High requirements.
Layer 2: Protocol Engine & Selective Disclosure (OpenID4VCI / OpenID4VP / SD-JWT-VC / BBS+ Pairing Cryptography / W3C VC 2.0): Manages high-throughput credential issuance, presentation exchange, and zero-knowledge selective attribute disclosure.
Layer 3: Qualified Trust Services & Legal Finality (ETSI EN 319 401/411/412 / QES / QSeal / Remote QSCD / RFC 3161 Time-Stamps): Provides legally binding electronic signatures and seals with cross-border mutual recognition under eIDAS Article 25.
Layer 4: Sovereign Trust Framework & Cross-Border Audit (EUTL / LOTL XMLDSig / StatusList2021 / ASiC-E Containers / Audit Logging): Dynamic supervisory trust chain validation, sub-millisecond revocation lookups, and tamper-evident forensic compliance.

Security Metrics & Latency Benchmarks: < 6.8 ms (Verification Latency) | CC EAL6+ (Hardware Enclave Level) | 14,500/s (Throughput Capacity) | Article 25 (Legal Admissibility)

European Digital Identity Framework & Cryptographic Trust Architecture in QEAACert

The European Digital Identity Framework established under Regulation (EU) 2024/1183 (eIDAS 2.0) fundamentally restructures how citizens, businesses, and public administrations interact across national borders. Within QEAACert, we formalize the cryptographic protocols, hardware security enclave boundaries, and decentralized attribute exchange flows required to deploy sovereign digital trust at scale. By unifying the EUDI Wallet Architecture and Reference Framework (ARF), Qualified Trust Service Providers (QTSP), and advanced zero-knowledge selective disclosure primitives, QEAACert guarantees cross-border legal finality, strict user data minimization, and uncompromised privacy protection.

Core Trust Engineering Areas

Qualified Electronic Attestation of Attributes (QEAA) under eIDAS 2.0 Article 45f — Legal obligations, certification criteria, and technical specifications for QTSPs issuing qualified attributes from authoritative base registries.
Integration Patterns with National Authoritative Registries: Land, Tax, and Education — Designing secure, high-availability APIs bridging legacy national databases to modern Verifiable Credential issuance gateways.
Privacy-Preserving Attribute Schemas using SD-JWT and W3C VC 2.0 — Structuring academic diplomas, corporate representation powers, and medical licenses for granular, field-by-field disclosure.

Technical Whitepapers & Regulatory Specifications

Related Cluster Architecture Specifications

EIDASTrust — eIDAS 2.0 European Digital Identity Framework, Sovereign Trust Services & EUDI Architecture
AP2API — AP2 Trust Protocols, Decentralized Authentication APIs & Cross-Border Identity Interop
AP2Cert — AP2 Compliance Certification, Qualified Trust Attestation & ETSI EN 319 Auditing
AP2Cluster — High-Availability AP2 Identity Clusters, Distributed HSMs & Scalable Trust Nodes