PRESNM

Updated on 2022-09-19 GMT+08:00

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Retain the first n and last m characters and mask the content in the middle part of the specified character string.

Request Parameters

**Table 1** Parameter description
Parameter	Mandatory	Type	Description
algorithm	Yes	String	Algorithm type, for example, PRESNM
parameters	Yes	For details, see Table 2.	Parameters for configuring a data masking algorithm

**Table 2** Parameters for configuring a data masking algorithm
Parameter	Mandatory	Type	Description
type	Yes	String	Character masking methods are described as follows: CHAR: Character masking RAND: Random masking
method	Yes	String	Masking method If type is set to RAND, this parameter can be set as follows: CHAR: Replace the data to be masked with characters. DIGITAL: Replace the data to be masked with numbers. BOTH: Replace the data to be masked with letters and numbers.
n	Yes	Int	Retain the first n characters.
m	Yes	Int	Retain the last m characters.

Example Request

{
    "mask_strategies": [
        {
            "name": "col1",
            "algorithm": "PRESNM",
            "parameters": {
                "type": "CHAR",
                "n": 1,
                "m": 1,
                "method": "*"
            }
        }
    ],
    "data": [
        {
            "col1": "test"
        }
    ]
}
Or
{
    "mask_strategies": [
        {
            "name": "col1",
            "algorithm": "PRESNM", 
            "parameters": {
                "type": "RAND",
                "n": 1,
                "m": 1,
                "method": "BOTH"
            }
        }
    ],
    "data": [
        {
            "col1": "test"
        }
    ]
}

Parent topic: Configuring a Dynamic Sensitive Data Masking Policy

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