Electronic authority seal Switzerland

Embedded e-sealing software for regulated e-seals in accordance with the Swiss Signature Act ZertES and TAV

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Over 100 partners in Europe and Switzerland trust our e-sealing solution.

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Product description

White-label remote e-sealing solution by Swisscom Trust Services

White-label remote e-sealing solution

The embedded e-sealing solution from Swisscom Trust Services, in collaboration with software partners, offers regulated e-seals for public authorities that meet the requirements of the Technical Administrative Regulations (TAV) in the Swiss Signature Act ZertES. The electronic authority seal represents the digital version of the traditional stamp used by government authorities or public institutions to ensure the authenticity and integrity of official documents. By implementing these regulated e-seals, public institutions can advance their digitization process and enhance the efficiency of their services by minimizing administrative analog efforts and reducing processing times. The implementation of the authority e-seal represents a pivotal advancement in the journey towards a digital governance, offering substantial advantages to both the governing bodies and the people of Switzerland.

Citizens validate the seals of your authority.

Citizens validate the seals of your authority.

In Swiss legislation, regulated e-seals from authorities are precisely defined, allowing the validator to provide accurate information about the issuing authority when verifying signatures and seals. By using these official seals, public offices can comply with legal requirements and strengthen citizens' trust in their communications and decisions. Each regulated authority seal is combined by a qualified timestamp, similar to regulated e-seals.

Popular features through the integration of the e-sealing solution

Pan-European certified solution

By integrating our e-seal solution into your application, you effortlessly meet the EU/EEA and Switzerland legal requirements. Swisscom Trust Services, an accredited certification service provider, is the leading provider of regulated and advanced E-seals according to the Swiss Signature Act ZertES. Additionally, our portfolio includes qualified and advanced electronic seals according to the European eIDAS regulation. Our solution enables organizations to seal confidential documents and contracts with the highest security and reliability, ensuring the digital preservation of their authenticity and integrity.


White-label software

Our innovative seal software offers you a white-label option, allowing you to benefit from our advanced backend technology while showcasing your brand of seal application to your sealing authorities and companies. Our solution can seamlessly adapt to your specific requirements and desired user experience, effectively meeting your customers' needs during sealing. You can also integrate your authentication solution and allow for the approval of e-seals.


During an application's sealing process, only the hash value of the respective digital document is sent to Swisscom Trust Services. This approach ensures that Swisscom Trust Services never has access to the content of the digital records. Also, at the software partner's request, each electronic seal can be combined with a qualified timestamp, providing additional assurance of integrity and authenticity regarding the time of sealing the document. Authority seals can be verified through validators.

Audited and standardized

Our auditors continuously assess our processes and systems as an accredited certification service in Switzerland and a trust service provider in the EU. All identification and authorization methods are approved according to the signature level (qualified or advanced) in the legal jurisdictions of Switzerland and the EU. Furthermore, our e-sealing solution complies with the latest international standards, such as ETSI, ISO, RFC, Common Criteria, etc.

Explore our service packages for e-seals

Service packages

Why Swisscom Trust Services

Swisscom Trust Services is an accredited trust service provider in Europe and a certification service in Switzerland. We assist providers of software applications and solutions in digitizing the final steps of their processes through the seamless integration of our legally secure electronic signatures and seals. Thereby, we consider our customers' industry-specific and regulatory requirements.

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Qualified and advanced electronic seals - recognized in the EU and EEA


Regulated and advanced electronic seals - accepted in Switzerland

GDPR and FADP compliance

Protection of our customer's privacy and personal rights by the data protection requirements in the EU and Switzerland


Our standardized APIs leverage OIDC and OIDC-PAR/CIBA and meet the requirements of ETSI Standards TS 119 432 for remote signatures.

Explore how our partners are using the ZertES-compliant government seals

Swisscom Trust Services and seantis seal partnership

Efficient digital public administration: regulated e-seals in the canton of Lucerne

Additional products available in the embedded signing platform