Identifier

Filter
This filter identifies custom text based on a given regular expression.
Required Parameters
This filter has no required parameters.
Optional Parameters
Parameter
Description
Default Value
enabled
When set to false, the filter will be disabled and not applied
true
ignored
A list of terms to be ignored by the filter.
None
caseSensitive
When set to true, the regular expression will be case sensitive.
true
classification
Used to apply an arbitrary label to the identifier, such as "patient-id", or "account-number."
"custom-identifier"
pattern
A regular expression for the identifier.
\b[A-Z0-9_-]{4,}\b
Filter Strategies
The filter may have zero or more filter strategies. When no filter strategy is given the default strategy of REDACT is used. When multiple filter strategies are given the filter strategies will be applied in as they are listed. See Filter Strategies for details.
Strategy
Description
REDACT
Replace the sensitive text with a placeholder.
RANDOM_REPLACE
Replace the sensitive text with a similar, random value.
STATIC_REPLACE
Replace the sensitive text with a given value.
CRYPTO_REPLACE
Replace the sensitive text with its encrypted value.
HASH_SHA256_REPLACE
Replace the sensitive text with its SHA256 hash value.
LAST_4
Replace the sensitive text with just the last four characters of the text.
Conditions
Each filter strategy may have one condition. See Conditions for details.
Conditional
Description
Operators
TOKEN
Compares the value of the sensitive text.
== , !=
CONTEXT
Compares the filtering context.
== , !=
CONFIDENCE
Compares the confidence in the sensitive text against a threshold value.
< , <=, > , >=, ==, !=
CLASSIFICATION
Compares the classification of the sensitive text.
== , !=
Example Filter Profile
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{
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   "name": "identifier-example",
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   "identifiers": {
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      "identifier": {
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         "caseSensitive": false,
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         "classification": "my-custom-type",
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         "pattern": "[A-Z]{9}",
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         "sectionFilterStrategies": [
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            {
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               "strategy": "REDACT",
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               "redactionFormat": "{{{REDACTED-%t}}}"
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            }
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         ]
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      }
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}
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Filter Profiles

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Example Filter Profile