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Enterprise
Archive

A software component for secure long-term retention of electronic signatures and seals in line with eIDAS, deployable directly within your own local infrastructure.

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Enterprise archive

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Benefits
How it works
Who it’s for
Advantages
Specifications
References

Signature archiving under your control

Enterprise Archive is a reliable, secure solution for organizations that require the highest level of data protection and compliance with legal standards for electronic identification and trust services.

See product sheet

Main benefits

eIDAS compliance

Ensures compliance with European standards and law for long-term retention of signatures and seals.

Flexible deployment

Deployed directly within your own infrastructure for full control over your data.

Integration with 4SIGNER

SaaS mode via the 4SIGNER cloud platform, or On-Premise with your own certificate authority.

Long-term verifiability

Supports documents signed with a qualified signature, with or without a trusted timestamp.

How it fundamentally works

How a signature stays
verifiable for years

Long-term validity of electronically signed documents is ensured through cryptographic hashing, periodic re-signing, and time-based signature chaining.

Enterprise Archive

Cryptographic hashing of documents

Each archived document, or its cryptographic hash, is securely stored as the basis of long-term proof of signature validity.

  • Hash of the document, or hash with the document
  • Optimized archive size
  • Preserved cryptographic proof

Periodic document re-signing

The document is periodically (usually once a year) re-signed, which extends its verifiability over time.

  • Automated yearly cycle
  • 4SIGNER technical certificate or customer certificate
  • Both qualified and non-qualified archiving

Time-based signature chaining

Repeated re-signing builds a cryptographic chain that protects integrity and allows validation at any time.

  • Protects document integrity
  • Ensures content immutability
  • Retroactive validation at any time

Who the solution is for

An archive for
for every level of trust

Enterprise Archive supports both non-qualified and qualified archiving, depending on the needs of your organization and systems.

Internal archiving processes

Systems with no requirement for a qualified trust service, with certificates managed by the customer.

Regulated entities and audits

Organizations needing a trusted archive suitable for regulatory, legal, and audit purposes.

DMS
integrations

Seamless integration with document management systems via REST interfaces.

Organizations with their own PKI

Reduced cost and complexity thanks to integration into existing PKI infrastructure.

Technical Specifications

Full support for formats
and cryptographic standards

Electronic signature formats

Support for advanced signature formats for PDF, XML, CMS, and JSON.

INCLUDES:

  • PAdES: PAdES-B, PAdES-T, PAdES-LT, PAdES-LTA
  • XAdES: XAdES-B, XAdES-T, XAdES-LT, XAdES-LTA
  • CAdES: CAdES-B, CAdES-T, CAdES-LT, CAdES-LTA
  • JAdES: JAdES-B, JAdES-T, JAdES-LT, JAdES-LTA

Cryptographic standards & algorithms

Support for trusted timestamps, Trusted Lists, and a broad range of algorithms.

INCLUDES:

  • RFC 5280 — X.509 public key infrastructure
  • Support for timestamps and Trusted Lists (EUTL)
  • RSA, DSA, EC, ECDSA
  • MD2, MD4, MD5, RIPEMD, SHA-1 — SHA-512

API and authentication

Access to archiving functions via the standardized NFQES Hash Archive API.

INCLUDES:

  • Archiving and verifying a document hash
  • Searching and managing archives
  • Authentication via certificate or Basic OAuth
  • Compatible with QSCD and certified HSM

SUPPORTED FILE FORMATS

Documents

.PDF · .DOC · .DOCX

Spreadsheets

.XLSX · .XLSM

Images

.JPEG · .PNG

eIDAS regulation compliance

Meets the requirements of Regulation (EU) No 910/2014 and Slovak law.

OCSP protocol support

Real-time certificate validation according to RFC 6960.

Robust integration

The solution can work with any certificate authority.

Multi-instance support

High availability and reliability through a scalable architecture.

QSCD and HSM compatible

Direct integration with QSCD devices and certified HSM devices.

REST/SOAP access

Standardized API for integration into existing systems and DMS.

References – selected projects

Trusted by companies
and institutions

OKTE

A company operating in Slovakia as a regulated entity responsible for running the energy market.

  • A system covering the complete management of signing processes
  • Qualified electronic signature
  • Integration with an external DMS and the customer’s virtual HSM hardware security model
  • Long-term storage of documents in a qualified archive

Bratislava Water Company

Digitized communication, online forms and contracts, electronic signing via infrastructure or API.

Tatraleasing

Reduced workload, lower hardware requirements, savings in time and cost, and strong legal certainty.

Medante

Digital signatures for medical records and contracts, implemented within the existing MEDANTE system.

It ensures secure long-term retention of electronic signatures and seals in line with eIDAS — documents are periodically re-signed, which extends their verifiability.

In non-qualified archiving, the customer manages their own certificates and keys. Qualified archiving runs via the 4SIGNER Hash Archive API with an 4SIGNER technical certificate, suited to regulatory, legal, and audit purposes.

Yes. In On-Premise mode, the 4SIGNER PKI API interface is used together with the customer’s own certificate authority — all operations run solely within the customer’s infrastructure.

The solution supports both scenarios — archiving document hashes alone, or hashes together with documents, depending on archive size and security requirements.

Via the standardized 4SIGNER Hash Archive REST API — integration is seamless and requires no major changes to your document management system.

Still have questions?

Feel free to ask — we will gladly advise you on selection and deployment.

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in your infrastructure

We will prepare a quote and an integration plan tailored to your environment — no obligation.

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