Overview
The PII Deanonymizer Node restores original personally identifiable information (PII) from anonymized text. This node enables you to:
- Reverse anonymization performed by the PII Anonymizer node
- Restore encrypted PII values to their original form
- Reapply placeholder mappings
- Safely process and then restore sensitive data
Configuration Parameters
Node Configuration
This node requires two inputs to function:
- Anonymized Text (input port): The text that was previously anonymized
- Deanonymization Info (secrets port): The JSON object containing the encryption key, entity mappings, and placeholders from the PII Anonymizer node
The deanonymization secrets must be stored securely and only used when necessary. Unauthorized access to these secrets can compromise privacy protections.
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Inputs:
- input: Anonymized text with PII placeholders
- secrets: JSON deanonymization information from PII Anonymizer node
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Outputs:
- output: Original text with PII restored
Use Case Examples
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Secure Processing Pipeline:
Anonymize data for processing through external systems, then deanonymize results before storing in your secure database.
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Privacy-Safe AI Analysis:
Send anonymized data to AI models for analysis, then restore original PII in the final output for authorized users.
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Audit Trail Recovery:
Maintain anonymized audit logs but allow authorized personnel to deanonymize specific entries when needed.
Error Handling and Troubleshooting
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Invalid Deanonymization Info:
Ensure the secrets JSON from the PII Anonymizer node is passed correctly without modification.
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Missing Key:
The encryption key must be present in the deanonymization info. If missing, the original data cannot be restored.
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Non-Invertible Operations:
Only encrypted PII can be fully restored. Other anonymization methods (like hashing) cannot be reversed.
If you encounter any issues not covered in this documentation, please reach out to our support team for assistance.
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