eIDAS — QES, AdES, and SES per the regulation.
The EU eIDAS Regulation (910/2014, expanded by the eIDAS 2.0 update Regulation 2024/1183) establishes 3 signature levels: Simple Electronic Signature (SES), Advanced Electronic Signature (AdES), and Qualified Electronic Signature (QES). QES carries the legal effect of a handwritten signature across the EU. The signature level required depends on the document and jurisdiction.
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What eIDAS requires.
Article 25 — legal effect: an electronic signature shall not be denied legal effect solely because it is electronic. A QES has equivalent legal effect to a handwritten signature.
Article 26 — AdES: uniquely linked to the signatory; capable of identifying the signatory; created using data the signatory can use under their sole control with high level of confidence; linked to the signed data such that subsequent changes are detectable.
Article 28 — QES: AdES + qualified certificate from a Qualified Trust Service Provider (QTSP) + qualified signature creation device (QSCD).
Annex I-IV — qualified certificate / QTSP / QSCD requirements. eIDAS 2.0 introduces the European Digital Identity Wallet (EUDI Wallet) for QES.
How TeamSync addresses eIDAS.
1. Three-level signature support.
eSignatures supports SES (e.g., click-to-sign), AdES (cryptographically linked + signatory-controlled key), and QES (via QTSP integration + QSCD).
2. QTSP integrations.
Pre-built integrations with major QTSPs (e.g., InfoCert, GlobalSign, Namirial, A-Trust); customers retain QTSP choice per jurisdiction.
3. Signature long-term validation (LTV).
Signatures embedded with LTV per ETSI EN 319 102; signature validity verifiable years later regardless of certificate expiry.
4. EUDI Wallet readiness (eIDAS 2.0).
Architecture ready for EUDI Wallet integration as Member States activate.
5. Signature audit anchored.
Signature events anchored in the Merkle audit ledger with full signature artefact preserved.
What customers see.
| Aspect | TeamSync coverage |
|---|---|
| SES — click-to-sign | ✅ |
| AdES — cryptographic + sole-control | ✅ |
| QES — QTSP + QSCD | ✅ via integration |
| LTV per ETSI EN 319 102 | ✅ |
| EUDI Wallet readiness | Architecture ready |
| Signature audit | Cryptographic |
| Cross-jurisdiction handling | Per-document policy |
Adjacent rules + frameworks served.
- UNCITRAL Model Law on Electronic Signatures — international parallel
- US ESIGN + UETA — US legal effect (different regulatory model)
- UK eIDAS (post-Brexit) — UK-specific equivalents
- ETSI EN 319 102 / 122 / 132 — technical standards for AdES/QES
Personas this overlay serves.
- General Counsel
- Construction Contracts Manager
- Matter Management Director