getSHA256

getSHA256 Function

The getSHA256 function generates a SHA-256 hash from a given input string using Node.js’ built-in crypto module. It supports configurable encoding formats for output customization.

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Purpose

Use this.getSHA256 to:

• Generate secure, one-way hashes of input values

• Anonymize sensitive data such as user IDs, IPs, or email addresses

• Create consistent, tamper-proof identifiers across systems

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Function Definition

Property	Description
Function Name	this.getSHA256
Type	function
Available In	Server-Side Variables
Returns	string (SHA-256 hash of the input)

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Parameters

Parameter	Description	Type	Required	Example
input	The input string to hash	string		"secret"
encoding	Output format of the hash (e.g., "hex", "base64")	string		"hex"

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Supported Encodings

See the Node.js crypto documentation for full details.

Common options include:

• hex — Standard readable format (recommended)

• base64 — Compact and URL-safe

• latin1 — Raw binary encoding

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Example Usage

async function() {
    let x = this.getSHA256("secret", "hex");
    return x;
}

In this example, the SHA-256 hash of the string "secret" is returned in hexadecimal format.

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Use Cases

• Anonymize personal data before storage or processing

• Create secure fingerprints for tracking without revealing raw input

• Validate content integrity across systems

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Notes

• SHA-256 is cryptographically secure and suitable for compliance-focused use cases (e.g. GDPR pseudonymization).

• Always explicitly provide the desired encoding.

• For custom algorithms or flexibility, consider using this.getHash.

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Summary

this.getSHA256 is a secure and reliable way to hash data in JENTIS server-side variables. It’s the preferred function for anonymizing identifiers or generating hashed tokens when privacy and integrity matter.