Document vs. Hash Signing

Evrotrust offers two distinct approaches to digital signing, each designed for different use cases and requirements. Understanding the differences between document signing and hash signing will help you choose the right method for your organization's needs.

Both methods produce legally valid electronic signatures, but they differ in how documents are processed, transmitted, and secured during the signing workflow.

Document Signing

With document signing, the complete document file is sent to Evrotrust's signing service for processing and signature application. This traditional approach provides a comprehensive, end-to-end signing experience with several distinct characteristics:

Simplicity and Convenience:

Streamlined workflow: Upload the document once and the signing service handles all processing
Full service management: Document storage, signature placement, and certificate validation are all handled by Evrotrust
User-friendly: Minimal technical integration required, making it accessible for straightforward implementations
- What you see is what you sign: User can review the document prior to signing confirmation. Obligatory file preview can be forced for the user before he/she can sign the documents.

Integrated Features:

Audit trails: Comprehensive logging of all signing activities and document access
Document storage: Secure archival of signed documents within Evrotrust infrastructure
Multi-party signing: Built-in support for sequential signing workflows with multiple signers

This makes document signing ideal for organizations seeking a turnkey solution with minimal technical complexity.

Hash Signing

With hash signing, only a cryptographic hash (digital fingerprint) of the document is sent to Evrotrust's signing service—not the actual document content. This approach offers several key advantages:

Performance Benefits:

Faster processing: Only a small hash value is transmitted instead of entire documents
Reduced bandwidth: Particularly beneficial for large files or high-volume signing operations
Lower latency: Network transfer times are minimized, enabling near-instant signature operations

Enhanced Privacy:

Content confidentiality: The signing service never receives or processes the actual document content
Data sovereignty: Sensitive documents remain within your infrastructure throughout the signing process
Compliance friendly: Easier to meet data protection requirements when documents don't leave your systems
Non-repudiation: The signed hash provides mathematical proof that the specific document was signed

This makes hash signing ideal for organizations handling sensitive documents, large file volumes, or operating under strict data protection requirements.