getHash

getHash Function

The getHash function generates a hashed string from a given input using the Node.js crypto library. It supports configurable hashing algorithms and output encodings.

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Purpose

Use this function to:

• Create hashed versions of identifiers or tokens

• Generate consistent anonymized values (e.g., hashed IPs, emails)

• Integrate hash-based logic into tracking or enrichment flows

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Function Definition

Property	Description
Function Name	this.getHash
Type	function
Available In	Server-Side Variables
Returns	string (the hashed value of the input)

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Parameters

Parameter	Description	Type	Required	Example
input	The input string to be hashed	string		"secret"
algorithm	The hashing algorithm to use (e.g., "sha256", "md5", etc.)	string		"sha256"
encoding	The output format of the hash ("hex", "base64", etc.)	string		"hex"

Default Encoding: "hex" if not specified

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Supported Algorithms & Encodings

See the official Node.js Crypto documentation for a full list of supported algorithms and encodings.

Common choices:

• Algorithms: sha256, sha1, md5, sha512

• Encodings: hex, base64, latin1

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Example Usage

async function() {
    let x = this.getHash("secret", "sha256", "hex");
    return x;
}

This example returns a SHA-256 hash of the string "secret" encoded in hexadecimal.

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Use Cases

• Generate anonymized keys (e.g., hashed IP or user ID)

• Create checksum or verification values

• Store secure reference identifiers without exposing raw input

• Match identifiers across systems using shared hashing rules

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Notes

• This function uses Node.js' built-in crypto.createHash behind the scenes.

• Output is deterministic: same input → same hash.

• Make sure the chosen algorithm and encoding match your system requirements.

• Do not use md5 or sha1 for security-critical applications — these are considered weak.

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Summary

this.getHash is a flexible and secure way to generate hashed values in JENTIS server-side variables. Whether you’re anonymizing personal data or aligning IDs across systems, this function allows full control over the hashing algorithm and encoding.