Integrated Functions in N8N

• Crypto Node for cryptographic operations:

  • Hashing of patient identifiers
  • Encryption of sensitive fields
  • Generation of pseudonyms

• Manipulation of Datasets:

  • Automatic removal of identifying characteristics
  • Replacement with placeholders or pseudonyms
  • Aggregation for statistical analysis

Separation of Identification and Subject Data

• Architecture Concept:

  +------------------+     +------------------+     +-------------------------+
  | Identity System  | <-> | Pseudonymization | <-> | Specialized Applications |
  +------------------+     +------------------+     +-------------------------+
  

• Practical Implementation:

  • Separate databases for identifiers and medical data
  • N8N workflows operate only with pseudonymized data
  • Linking table strictly protected and access-restricted