Built for legal-grade document workflows

The Digital Identity and Attributes Trust Framework (DIATF) is the UK Government's standard for trusted digital identity services. It defines assurance levels, fraud controls, and governance so organisations can rely on verified identity evidence in regulated workflows.

OneID is certified under the UK DIATF for bank-verified identity at Medium assurance. Signers authenticate through their existing UK mobile banking app — no document scans or new accounts required.

OneID delivers DIATF Medium assurance via live bank authentication (typically Face ID or fingerprint in the banking app). Touch2Sign records verified name, assurance level, and verification metadata in the audit trail and SCCR.

No. OneID provides DIATF-aligned identity proofing suitable for Advanced Electronic Signature (AES) workflows in the UK. For eIDAS Qualified signatures (e.g. many Ireland property instruments), Touch2Sign routes signers to eID Easy national eID methods.

For UK AES flows, Touch2Sign uses OneID for identity verification, then applies a PAdES Advanced electronic seal to the PDF via eID Easy so the signature is cryptographically embedded — not audit-trail only.

Use OneID for deeds, property transfers, high-value agreements, and eWitness workflows where bank-verified identity strengthens your compliance record. Lower-risk documents can use email or SMS OTP instead.

Under eIDAS (EU) and retained UK law, QES is the highest tier of electronic signature. It uses a qualified certificate from a trusted service provider and is legally equivalent to a handwritten signature where eIDAS applies — stronger non-repudiation than Simple or Advanced signatures.

For regulated deeds, property instruments, and high-value contracts, QES embeds a cryptographic PAdES signature in the PDF itself — verifiable in Adobe Acrobat years later. That removes couriers, in-person chasing, scanning, and post errors while binding identity more tightly than ink on paper. Touch2Sign delivers QES remotely via national eID — no branch visit required.

eID Easy is a Qualified Trust Service Provider (QTSP) aggregator. One integration unlocks national eID methods — itsme (Ireland), BankID (Nordics), Smart-ID, Mobile-ID, iDIN (Netherlands), and more — plus the QES signing API. Touch2Sign uses eID Easy for Ireland/EU identity verification and PAdES-QES sealing; for UK AES flows it also applies PAdES-AES after OneID.

Wet ink creates weak evidence — no tamper detection, no identity proof, and fragile chain of custody. QES produces a qualified certificate bound to the document hash, with SCCR and audit trail. For Ireland property and many EU instruments, national law expects qualified-level signing; Touch2Sign routes those flows to eID Easy automatically.

Many panels now expect cryptographic evidence, not scanned PDFs. QES PAdES signatures validate in standard PDF viewers and QTSP audit logs. Touch2Sign adds SCCR completion reports, ERSD acceptance, and optional Witness Trail Reports — the evidence pack lenders and compliance teams ask for.

Signers use familiar national apps they already trust — itsme in Ireland, BankID in Sweden, mobile banking for OneID in the UK. Touch2Sign guides them: review document → verify identity → one-click qualified sign. No certificate installation or technical setup.

Irish regulated deed flows require QES under eIDAS. Signers verify via eID Easy (e.g. itsme); Touch2Sign embeds qualified PAdES in the deed PDF. Witnesses complete a separate QES on an evidence container (.asice) — identity + qualified signature captured for audit.

Touch2Sign requires cryptographic sealing for AES and QES flows — the finished PDF contains PAdES signatures visible under “Signatures” in Adobe Acrobat. Audit certificates (SCCR) supplement the PDF; they do not replace embedded qualified signatures.