What is the FHIR Signature Datatype?

The FHIR Signature Datatype is a standardized structure within FHIR that exposes important elements of a signature in an easily processable format. It simplifies the integration and validation of signatures within healthcare data.

What are the key differences between electronic and digital signatures in FHIR?

Electronic signatures rely on the security of the infrastructure and provide a standardized way to track signing actions. Digital signatures, on the other hand, add a cryptographic proof, ensuring the integrity and authenticity of the data through cryptographic standards.

Why is canonicalization important for digital signatures?

canonicalization ensures that the validation process examines the same elements in the same order and encoding as the signer used. This consistency is crucial for the reliable validation of digital signatures over time.

How does FHIR handle updates to signed resources?

FHIR uses resource versioning and Provenance records to manage updates to signed resources. Each update creates a new version, and Provenance records detail who, what, where, when, and why the change occured, linking back to the original signature.

What agreements are needed for successful digital signature implementation?

Successful digital signature implementation requires agreements on key management, signature standards, time sources, encoding of FHIR content, and wich elements of the FHIR content are allowed to change.

What is needed for long-term digital signature validation?

Long-term digital signature validation requires careful consideration of factors such as time, revocation checking, and PKI (Public Key Infrastructure) access to ensure signatures can be validated months or years after they were created.

Health

FHIR Digital Signatures & Healthcare Exchange Standards

by Alexandra Hartman Editor-in-Chief June 29, 2025

written by Alexandra Hartman Editor-in-Chief June 29, 2025

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FHIR Digital Signatures & Healthcare Exchange Standards

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