ADSS Signing Server


Advanced Digital Signature Services

One solution for all your signing & verification needs!

ADSS Signing Server is a comprehensive solution for creating and verifying advanced digital signatures on any type of document, web form or transaction. Business applications can rely on ADSS Signing Server to ensure data integrity, user authentication, non-repudiation and long-term provability of information. ADSS Signing Server can be easily integrated with business applications using our high-level ADSS Client SDK (Java and .NET) or simple web services calls. ADSS Signing Server complies with the OASIS DSS and DSS-X protocol specifications.

ADSS Signing Server can create and verify all common signature formats, including: PDF, PAdES, CAdES, XAdES, XML DigSig, PKCS#7, CMS, PKCS#1 and S/MIME. Click here for a complete list of ADSS Server supported signature formats.

Key benefits:

Some of the key benefits of using ADSS Signing Server are:

  • Ensures easy installation, configuration and management:
    Completely GUI based, with its own purpose built installer ensures ADSS Server can be set-up and be operational in minutes. Automated tasks such as auto-archiving of transaction logs and real-time alerting ensure minimum operator time is required for maintenance or house-keeping. Comes with detailed management reporting for each service which provides dashboard level information that can easily be drilled for extra detailed information.
  • Meets highest levels of performance, scalability and resilience:
    These are essential qualities for a centralised e-trust security server. ADSS Server is packed with features capable of ensuring it meets even the highest demands placed by Managed Service Providers servicing multiple customer organisations.
  • Provides maximum security:
    ADSS Server has been designed with maximum security in mind, from strong identification and authentication of client applications and operators, to fine grain access control to services, to secure detailed logging, to automated system integrity checking, to dual control features, ADSS Server has it all! Security for your centralised signing and verification operations is a must, with ADSS Server you do not have to make any compromises.

Use cases:

ADSS Signing Server can be used in a wide range of scenarios:

  • Zero footprint signing:
    End-users view and digitally sign documents within a standard browser without pre-installing any signing software. User signing keys can be held locally either on a Secure Signature Creation Device (SSCD) e.g. smartcard or secure USB tokens or in a software file. Windows, Mac OS X and Linux operating systems are supported, as well as a range of Internet browsers.
  • Bulk document signing:
    Automated signing of documents such as e-invoices and e-statements using centrally held organisation or department-level signing keys. The signing keys can be held in a secure HSM or in encrypted software files held securely in the ADSS Server database. The signing action can be invoked through our on-demand API or using our watched folder client application called Auto File Processor. Email integration is also available.
  • Virtual smart card:
    This is server-side signing of documents by individual users with their unique signing keys held on the server. Users are first authenticated using any multi-factor technique by the host business application before signing can take place within the ADSS Signing Server. User signing keys can be held securely inside an HSM or in encrypted form in the database.
  • Mobile signing:
    Documents which are to be signed are first hashed by ADSS Signing Server and this hash value is then sent to the signer’s mobile device for signing. The user’s signing key can be held in a software app on the mobile device or within a micro SD card or even within the mobile SIM.
  • Signature verification:
    You can programmatically verify signed documents coming into an organisation for automated Straight Through Processing (STP). ADSS Server supports multiple PKI trust points, detailed verification reports, dynamic certificate path discovery and full certificate validation using real-time certificate status checking. Signature and certificate quality checking using the latest PEPPOL quality-rating scheme is also available.

ADSS Server architecture:

ADSS Server is a powerful server application providing multiple e-Trust services as shown in the diagram below. Although it's a single product, its service modules are licensed individually and branded accordingly. Your investment in ADSS Server is therefore future-protected as you can license new service modules over time as your e-Trust business needs grow. Multiple ADSS service modules may be installed on the same ADSS Server instance, saving on hardware, software and management costs. All of the ADSS Service modules use the same GUI layout and style thereby making training simple for administrators. Ascertia tracks the latest industry standards and is committed to adding new service modules as required by our customers.

Business applications & ADSS connectors
Core ADSS Server modules Trust Manager | Key Manager | Secure Logging | HSM & DB Manager | Reporting | Client Manger | Dual Control CRL Manager | Access Control | System Integrity Checker | Auto Archiver
High-Level e-Trust Services (each separately licensed) Lower-Level PKI services (each separately licensed) Base Modules of ADSS Server (available by default)

The above diagram shows a range of business applications (clients) using the ADSS Signing & Verification Service modules. The ADSS PKI service modules (CA, OCSP, TSA service) are generally installed on separate back-end server(s), furthermore the use of standards-based 3rd party PKI providers is also possible. Click on any of the service modules to jump to the relevant product page.

The power of ADSS Server is that all of this digital signature and PKI functionality is available from one unified product, which minimises training costs, provides a single platform for management control and logging, and lowers the total cost of hardware and software ownership.

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“LeasePlan chose ADSS Server because it exactly met our business and technical requirements. We found we could easily download ADSS Server and all its integration components from Ascertia's website and the installation and configuration went very smoothly. The examples provided allowed us to explore and test the required functionality and this helped in minimising the time spent setting up our own server configuration. We were also very impressed by the service delivered by Ascertia, both the sales delivery and technical support teams were very responsive. We always got a swift and accurate answer to our questions. A small technical change that was required to ensure ADSS Server could run within our environment was analysed, developed and deployed in a very short time. The excellent cooperation with Ascertia enabled us to implement a fully operational PDF document signing solution within the planned time frame.” Hugo De herdt | LeasePlan Belgium “Nikken has used Ascertia ADSS Server for 5 years to sign its PDF statements, ensuring these PDFs are seen as authentic Nikken branded documents and protecting the data against fraudulent change. Our experience with ADSS Server product and its availability and performance is that I as an IT Professional & as Nikken's IT manager for 9 years, that Ascertia are the standards by which all companies in this industry sector, should consider setting their standards by. My experience with dealing with the company as a whole is faultless, effortless and above all professional. Ascertia's support service rates a 10/10 because they just do all that you ask, without the normal associated clutter of other organisations in this sector. I have no hesitation in recommending to anyone that they should consider Ascertia, its ADSS Signing Server and its excellent support service.” Andy Butterworth | IT Manager Nikken UK Ltd

Sales Inquiries:
+44 (0)800 772 0 442


Years of Digital Signature