Definition and Types of Electronic Signature
The electronic signature is a digital procedure used to ensure the authenticity of electronic declarations and to uniquely identify the signatory. Within the European Union, the eIDAS Regulation (EU) 910/2014 regulates the legal framework and defines three types of electronic signatures:
- Simple electronic signatures (SES): These encompass simple electronic procedures, such as scanned signatures or clicking on consent boxes ("I agree").
- Advanced electronic signatures (AES): These fulfill specific security requirements. They must be clearly assigned to a signatory and protected against subsequent changes.
- Qualified electronic signatures (QES): These represent the highest security level, requiring a qualified certificate and a secure signature creation device.
Legal Equivalence of the Qualified Electronic Signature
According to Art. 25 of the eIDAS Regulation, the qualified electronic signature (QES) is legally equivalent to a handwritten signature. This has been expressly implemented in Germany through Section 126a of the German Civil Code (BGB). This means that wherever a written form is required under Section 126 BGB, it can be replaced by a QES. However, a mere advanced or simple electronic signature is insufficient.
In practical terms, this means, for example, that notices of termination for employment contracts or rental agreements can only be validly declared electronically using a QES.
Trust Service Providers and Technical Requirements
Electronic signatures, particularly qualified electronic signatures, are issued by so-called trust service providers. Such providers, like trust centers, issue qualified certificates after careful identity verification. Technically, electronic signatures are generally based on asymmetric cryptography. A private key is used to create the signature, and a public key verifies it.
Other Instruments of the eIDAS Regulation
Beyond the electronic signature, the eIDAS Regulation also recognizes other instruments. These include the electronic seal, intended for legal entities, and electronic time stamps, which legally document the exact time of a signature. These instruments significantly enhance the possibilities of digital legal transactions.
Acceptance and Practical Challenges
Although the qualified electronic signature holds the same legal status, its use remains comparatively rare in practice. This is often due to the traditional prevalence of handwritten signatures, a lack of trust, and technical challenges. Consequently, companies and public authorities must further strengthen trust in digital signature procedures through technical education and user-friendly systems.
Electronic Legal Transactions in the Judiciary
However, advancing digitalization, particularly within the judiciary, is increasing the importance of electronic signatures. In accordance with Section 130a of the German Code of Civil Procedure (ZPO), the German judiciary permits the electronic submission of complaints and pleadings when provided with a qualified electronic signature. These regulations are trend-setting, contributing to the further establishment of digital procedures in legal contexts.
Future Prospects for Electronic Signatures
In the long term, electronic signatures are likely to gain importance. This is particularly due to technological developments, increasing digitalization of business processes, and EU legal impetus to harmonize and promote digital trust services. Companies and public authorities should invest in appropriate technologies early on. This ensures a legally compliant transition to fully digital processes and fully exploits the advantages of efficient, paperless operations.
Conclusion on Electronic Signatures
Electronic signatures, especially in their qualified form, are a key component in ensuring the legal and technical integrity of digital business processes. Its consistent use can help make processes more efficient, secure, and user-friendly. However, it requires continuous promotion regarding acceptance and technical implementation.