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ARX Data Anonymization Node extension for KNIME Workbench version 0.3.26 by Redfield AB

Node for hashing (SHA-1) the values in the columns with multiple salting strategies.


The node applies SHA-1 algorithm for hashing values in selected columns. All values are converted to string then additional information might be concatenated to this string for salting. There are four salting strategies:
  • None - values in selected columns are hashed as they are, no additional concatenation is used;
  • Random - random seed is used for salting every time node is executed. It is possbile to use a fixed seed value.
  • Column - values from additional column is used for salting. Values from selected columns are concatenated row-wise.
  • Timestamp - selected date and time are used for salting.
Debug Mode
If activated no hashing will be applied, instead only values with or without salting will be returned.

Input Ports

Input table for anonymization

Output Ports

Table with anonymized data
Dictionary table with hashed and original values

Best Friends (Incoming)

Best Friends (Outgoing)



To use this node in KNIME, install Redfield Privacy Nodes from the following update site:


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