Masking

A technique commonly used by dynamic data masking within the RDBMS. Certain fields are replaced with a mask character (such as an ‘XXX’). This removes the actual content while preserving the same formatting. For example, below masks credit card details while preserving the pattern:

Example

obfuscation:
  name: numberMasking
  fields:
    creditcard:
      masking:
        pattern: XXXX XXXX XXXX 1234
        mask: "*"

Attributes

Attribute	Description	Data Type	Required
mask	Replacement character to be applied	Char Default: *
pattern	Masking pattern to be applied to source string value	String
apply to all	Boolean to inform if all characters need to be replace using the mask value (true) or to apply pattern (false).	Boolean Default: false