Securing Sensitive Data

YAML Configuration Encryption in Spring Boot

Safeguarding sensitive configuration data, such as database passwords and API keys, is crucial. This guide explains how to encrypt YAML properties in Spring Boot using Jasypt(Java Simplified Encryption), manage encryption keys through environment variables, and rotate keys without causing downtime.

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Why Encrypt YAML Configurations?

• Prevent Exposure: Avoid leaking secrets in version control or logs.
• Compliance: Meet regulations like GDPR and HIPAA.
• Dynamic Key Management: Rotate keys without hardcoding them in your application.

1. Setup Jasypt Encryption

Step 1: Add Dependencies

Add the Jasypt Spring Boot Starter dependency to your project. Check for the latest version on .

dependencies {
    implementation 'com.github.ulisesbocchio:jasypt-spring-boot-starter:3.0.5' 
}

Step 2: Enable Encryption

Annotate your main application class to enable property encryption:

import…