The Signing Service for electronic signatures

The Signing Service is a cloud-based service for legally valid electronic signing and time stamping of documents.

Already over 6,500,000 documents

Contact us for a non-binding and free consultation.

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    Pan-European Solution

    The Signing Service is the only European signature and sealing solution that covers the two legal areas EU/EEA and Switzerland with one interface, in accordance with the eIDAS regulation and ZertES Signature Act. Our support speaks your language: German, English, French and Italian.

    Easy Identification

    Choose from various identification methods, e.g. identification via video, face2face, at Point of Sales or bank login. With a delegation contract, we also offer identification via mobile app by your own identification agents.


    We offer a complete package of signature, identification and expression of intent that you can easily integrate into your processes resp. applications. We also enable you to exchange individual components as you wish, for example if you want to integrate and use your own authentication or identification solution.

    White Labeling

    Use the advantages of our market-defining technologies in the backend and remain the face to your customers with your process resp. application as before. Our white labelling option makes it possible.

    Partner Network

    We offer a wide variety of solution partners in different industries. They integrate our services and extend them to industry-specific business solutions or easy-to-use signature portals.


    Only a hash (compressed document data) is transmitted during the signing process, so we can not see your document content. Processing and identity verification takes place in secure computer centres with geo-redundancy in Switzerland. Auditors constantly check that we comply with all regulations according to Swiss and EU legislation.

    The Signing Process

    1. Natural & Legal Persons

    Natural Person
    A natural person, e.g. an employee in home office likes to sign electronically a contract or another digital document. A person signature is suitable for this purpose.

    Legal Person
    A legal person requires a large ammout of electronic signatures for different types of files such as invoices, contracts, etc. The seal is available for this purpose.

    2. Identify once – sign multiple times.

    In order to use the Signing Service, the natural or legal person must be identified once with an identification application. Our Smart Registration Service (SRS) carries out this identification by using, e.g. the free Registration Authority App (RA-App), SRS Video, SRS Bank or any other existing and approved (KYC) process. The RA-App offers everyone the opportunity to independently perform face-2-face identification of colleagues, customers or partners in a company as an RA agent. Registers are additionally used to check organisation entries in case of seals.

    3. Authentication

    A declaration of intent is requested for each personal signature. This declaration of intent is carried out with the authentication method defined during identification process. As standard authentication methods for the qualified signature we offer Mobile ID, Mobile ID Authenticator App with Fingerprint/ Face Recognition or a combination of password/one-time password via SMS. For seals, access certificates created by the organisation are used as a means of authentication in order to permit mass signatures.

    4. Request of a signature or seal

    A signature application, e.g. one of our partner’s or a self-developed application, requests a signature from Swisscom. The application creates a document hash and transmits it to Swisscom.

    After authentication and declaration of intent to sign, a one-time, short-term signature certificate is issued in the case of personal signatures. As a result, it is not necessary to provide a process for revocation of certificates. Only organisation seal certificates for seals are longterm certificates (e.g. 2 years).

    5. Time Stamp

    In addition to the signature, a time stamp is added. The time stamp serves to verify that a signature was valid at a particular point in time and allows long-term validation of the signature after end of validity of the (short-term) certificate.

    6. Signature Application

    You can either integrate the Signing Service to an obtainable on the market or in-house developed signature application.
    If desired, we gladly refer you to a suitable signature application of our partners. Within the application, documents to be signed are displayed and prepared for signature. By sending compressed data of the document (known as “hash values”), Swisscon has no conclusion about the document content. After the signature process, the signed hash document is sent back to the signature application, which creates a signed document based on this signed hash. A lot of standard libraries on the market support the transformation document-hash-document.

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