How does Acra compare to using PostgreSQL pgcrypto for encryption?

Acra provides application-level encryption with additional layers like SQL firewall and intrusion detection, whereas pgcrypto is limited to database-side encryption. Acra encrypts data before it reaches the database, offering better compartmentalization but requires proxy deployment.

Can Acra work with NoSQL databases like MongoDB?

Yes, through AcraTranslator's API, which allows encryption/decryption of data before storage in any datastore, including NoSQL databases. However, some integrations like AnyProxy are Enterprise-only.

What is the performance impact of Acra's field-level encryption?

Acra adds latency due to encryption/decryption and SQL parsing, but uses optimized cryptographic containers (AcraBlocks) for speed. Performance varies with data volume; the documentation includes guidelines for balancing security and efficiency.

How to set up Acra with an existing Django application?

Deploy AcraServer as a proxy, configure it to encrypt specific database columns, and update Django's database settings to point to AcraServer. Example projects in the Acra Engineering Demos repository provide step-by-step guidance.

Does Acra support key rotation for encrypted data?

Key rotation without data re-encryption is an Enterprise-only feature. In the Community Edition, key rotation requires decrypting and re-encrypting data, which can be complex for large datasets.

Is Acra sufficient for GDPR compliance on its own?

Acra helps meet GDPR requirements by providing encryption and access controls for personal data, but compliance also depends on proper configuration, data classification, and organizational policies—it's not an out-of-the-box solution.

Open-Awesome

Acra

Apache-2.0Go0.96.0

Database security suite providing field-level encryption, SQL injection prevention, and intrusion detection for sensitive data.

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1.5k stars137 forks0 contributors

What is Acra?

Acra is a database security suite that provides field-level encryption, SQL injection prevention, and intrusion detection for protecting sensitive data in applications. It encrypts data at the application level before it reaches the database, supports searchable encryption, and includes a configurable SQL firewall to block malicious queries. Acra helps organizations secure personal and regulated data while maintaining compliance with standards like GDPR and HIPAA.

Target Audience

Developers and DevOps teams building web, mobile, or IoT applications that handle sensitive data (e.g., healthcare, fintech, SaaS). It is suited for organizations needing robust database security without major application rewrites.

Value Proposition

Acra offers a unified suite of security controls—encryption, firewall, intrusion detection—that are easy to integrate via proxy or API. Its defense-in-depth design and minimal code changes reduce risk and operational overhead compared to piecing together separate security tools.

Overview

Database security suite. Database proxy with field-level encryption, search through encrypted data, SQL injections prevention, intrusion detection, honeypots. Supports client-side and proxy-side ("transparent") encryption. SQL, NoSQL.

Use Cases

Best For

Securing healthcare applications storing patient records under HIPAA
Protecting financial data in fintech or neobanking platforms
Adding encryption to SaaS products with centralized databases
Preventing SQL injection attacks in high-traffic web applications
Implementing searchable encryption for exact-match queries on sensitive fields
Meeting GDPR compliance requirements for personal data protection

Not Ideal For

Small-scale projects with minimal sensitive data where deploying and managing Acra's proxy services adds unnecessary complexity
Environments that rely heavily on database-native features like stored procedures or complex SQL operations that could be disrupted by Acra's SQL firewall parsing
Teams exclusively using Windows servers without Docker, as Acra's server components are incompatible with Windows as a host OS

Pros & Cons

Pros

Unified Security Suite

Combines field-level encryption, SQL firewall, and intrusion detection in one tool, reducing the need for multiple security solutions and simplifying compliance efforts.

Searchable Encryption

Enables exact-match queries on encrypted data using AES-GCM and blind indexes, maintaining usability while securing sensitive fields without full decryption.

Minimal Code Changes

AcraServer acts as a transparent SQL proxy, allowing integration by simply redirecting database connections, as demonstrated in the example dataflows.

Defense-in-Depth Design

Layers independent controls like encryption, poison records for intrusion detection, and SQL firewalls to mitigate multiple risks, following a robust security philosophy.

Cons

Enterprise Feature Gating

Critical features like KMS integration, key rotation without data re-encryption, and client-side SDKs are only available in the paid Enterprise edition, limiting the open-source version's utility.

Windows Incompatibility

Server-side components like AcraServer and AcraTranslator do not run natively on Windows, requiring Docker or Linux environments, which can hinder deployment in some infrastructures.

Operational Overhead

Setup involves configuring multiple services (e.g., AcraServer, key storage) and ensuring proper isolation, adding DevOps complexity compared to simpler encryption tools.

Frequently Asked Questions

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