Advanced Electronic Signature (AES)

Advanced Electronic Signature (AES)

An Advanced Electronic Signature (AES) is a legally recognized digital signature characterized by a high level of security and uniquely identifies the signatory, maintaining exclusive control over the signature. AES goes beyond basic electronic signatures by linking the signatory to the signature in a unique, traceable, and tamper-evident way.

Best Use Cases

Advanced Electronic Signatures are particularly suitable for situations that demand higher trust, legal assurance, and data protection, such as:

• Signing high-value contracts or agreements (e.g., financial, legal, HR)

• Sensitive corporate communications or shareholder documentation

• Insurance policies and banking forms

• Government-related documentation requiring strict identity verification

How It Works

AES implementation involves advanced cryptographic methods and identity authentication mechanisms, typically including:

• Secure certificate-based digital identity issued by a Trusted Service Provider (TSP)

• Use of personal identification methods such as biometric verification, smartcards, or multi-factor authentication (MFA)

• Binding the digital signature to the signatory's identity and the document content through cryptographic keys

Advantages of advanced Electronic Signature

• High Legal Assurance
  Meets the requirements of eIDAS (EU Regulation), GDPR, ETSI, and other global standards. Provides a higher level of legal standing than simple signatures.
  Each signed document is protected and legally valid over time through:
  - Timestamp and Electronic Seal.
  - Encryption of documents and information.
  - ISO 27001 security certification.

• Strong Identity Linkage
  Authenticates the signatory with secure digital certificates, ensuring the signature is uniquely linked to its owner and tamper-proof.

• Data Integrity & Tamper Detection
  If the signed document is altered after signing, the signature becomes invalid—ensuring document integrity.

• Improved Trust and Risk Mitigation
  Especially suitable for industries where compliance, audit trails, and non-repudiation are essential. Reduces the risk of fraud or unauthorized alterations.

The signature service records a Signature Audit, or detailed proof dossier, with all the evidence relating to the actions that accompany the request and the affixing of an electronic signature on a document.