Hash Strings

Computes cryptographic hashes for a String column.
Simply speaking, it generates unique fingerprints for String contents.
It is practically impossible to find 2 different input values sharing the same hash value (collision resistence). Besides brute force attempts of trying many inputs, it is also practically impossible to restore the original content from the fingerprint (oneway function).

Options

Input column

String column to be hashed.

Hash Function

The cryptographic hash function to use.

Output Format

The choice of output format. For example, the String "abc" with character set UTF8, will SHA-256 hash to:%%00010* hex (upper case): BA7816BF8F01CFEA414140DE5DAE2223B00361A396177A9CB410FF61F20015AD%%00010%%00010* hex (lower case): ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad%%00010%%00010* base64 (with padding): ungWv48Bz+pBQUDeXa4iI7ADYaOWF3qctBD/YfIAFa0=%%00010%%00010* base64 (without padding): ungWv48Bz+pBQUDeXa4iI7ADYaOWF3qctBD/YfIAFa0

Input charset

The character set to be used for the input String. Use UTF-8 if unsure.

Output column name

The name of the output column holding the hashed values.

Nodes

• Single Selection Configuration3 ×
• Column Rename2 ×
• Column Filter1 ×
• Column Selection Configuration1 ×
• Component Input1 ×
• Component Output1 ×
• Java Snippet1 ×
• String Configuration1 ×

Extensions

• FeatureKNIME Base nodes
• FeatureKNIME Javasnippet
• FeatureKNIME Quick Forms

Links

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