u.trust Sign and Timestamp Services
eIDAS Compliant Solutions for the Digitization of Business Processes

u.trust Sign and Timestamp Services

u.trust Sign and Timestamp Services – Providing eIDAS Trust Services - Generation and Validation of Qualified Electronic Timestamps and Signatures

CryptoServer SDK
  • Solution as a Service
  • eIDAS trusted services; Qualified electronic timestamps, qualified electronic signature generation, validation and audit-proof archiving
  • Easy integration of Qualified electronic signatures into an existing eInvoicing workflow
  • Trust services available as either Qualified or non-qualified depending on the level of security required
  • Easy integration into an existing process landscape
  • An enabler for the digital transformation of an organization
Key Benefits

Key Benefits


Creation of Qualified Electronic Signatures

u.trust Signing Service provides the functionality to apply eIDAS qualified electronic signatures to documents and data for certain legal and compliance requirements which include the EU VAT Directive, various EU Tax Directives, and the German Value Added Tax Law (UStG) for electronic invoices (eInvoicing) and credit memos.


Creation of Qualified Timestamps

u.trust Timestamping Service, the first eIDAS certified timestamping service is creating qualified electronic timestamps for document and data authenticity. The timestamps can be stored either as a separate file together with the original document or can be integrated in existing signature containers for further processing.


Verification of Signatures and Timestamps

u.trust Sign and Timestamp Services are able to provide mass validation of qualified signatures and timestamps including online validity checks for included certificates (OCSPs) in various languages.



u.trust Sign and Timestamp Services – The ideal solution for eIDAS trusted services; Generation and Validation of qualified electronic timestamps and signatures.

u.trust Sign and Timestamp Services are UTIMACO’s Solutions-as-a-Service for the generation, validation, and audit-proof archiving of qualified electronic signatures and timestamps, which are required for legally compliant digital business transactions. These solutions provide the proof, integrity and authenticity of electronic workflows and streamlines operations by reducing the requirement to manage traditional paper-based processes.

u.trust Sign and Timestamp Services have a considerable advantage over on-premise systems in terms of the efficiency with which it can be integrated into existing processes via standard interfaces, as well as the seamless collaboration between all trusted services. The interface enables centralized access to important trust-based services, allowing for easy management and full transparency.

Through a powerful web service, the solution provides large-scale inspections of qualified signatures and timestamps, including online validity checks for included certificates (via OCSP). The multi-language check reports are available in German, English, and French as well as other languages upon request.

Using u.trust Sign and Timestamp Services reduces the Total Cost of Ownership by decreasing costs for internal documentation, document storage and audit preparation as well as saving costs on hardware.

u.trust Sign and Timestamp Services provide fully automated and audit-proof storage of the created signatures and timestamps in compliance with eIDAS, the EU eInvoicing Directive and the EU VAT Directive  and national provisions of the EU member states Regulation (EU) 910/2014, as well as meeting various tax authority requirements such as the German AO, HGB, GoBS and GDPdU.

Offering eIDAS Compliant Trusted Services

  • Creation of qualified electronic timestamps
  • Creation of qualified electronic signatures
  • Validation of qualified electronic signatures and timestamps
  • Online validity checks of qualified electronic signatures and timestamps for included certificates (OCSPs) in various languages
  • Audit-proof long-term archiving

Creates Trust and Long-Term Signature Validity

  • Compliant with REGULATION (EU) 910/2014 (eIDAS)
  • Signature file format: CMS (CAdES)
  • Uses Time Stamping Authority (TSA) RFC 3161 Time-Stamp Protocol (TSP) to apply an accurate, trusted timestamp
  • When TSA is used while signing, tampering with the timestamp is prevented

Supports eIDAS-Compliant Integrated Signatures

  • PDF documents (PAdES)
  • XML documents (XAdES)
  • ASIC containers

Streamlined Processes & Management

  • Benefit from improved audit processes & tracking
  • Reduces backlog- document approval is streamlined and archived
  • Enables flexible access via standard interfaces REST, SFTP and SMTP
  • Provides access and use via all interfaces

Reduces Total Cost of Ownership

  • No hardware required
  • No handling cost and effort     

Easy Integration into a Process Environment

  • Standard interfaces ensure rapid and easy integration into existing processes
  • Ensures frictionless collaboration between all trusted services
  • Provides maximum long-term interoperability through use of worldwide standards and specifications (e. g. ETSI signature formats, RFC 3161, PKIX)

As a service

Our as-a-service options are hosted by UTIMACO in certified datacenters and include everything from set-up to deployment to maintenance.

Contact us

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