# Usage of insufficient random value

## Overview

* **Rule ID**: `java_lang_insufficiently_random_values`
* **Applicable Languages**: Java
* **Weakness ID**: CWE-330

## Description

Employing predictable random values undermines application security, especially when these values are used for security-sensitive purposes.

## Remediation Guidelines

* **Do** utilize a robust library for generating random values to enhance security.

  ```java
  SecureRandom random = new SecureRandom();
  ```

## References

* [**Java SecureRandom class**](https://docs.oracle.com/en/java/javase/20/docs/api/java.base/java/security/SecureRandom.html)
* [**CWE-330: Use of Insufficiently Random Values**](https://cwe.mitre.org/data/definitions/330.html)
* [**OWASP Top 10: A02:2021 - Cryptographic Failures**](https://owasp.org/Top10/A02_2021-Cryptographic_Failures/)

## Configuration

To omit this rule during a scan, and to provide you with continuous 24/7 code-level scanning, you can employ our [**SAST TOOL**](https://scopy.sec1.io/login)


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.sec1.io/user-docs/4-sast/2-java/usage-of-insufficient-random-value.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
