Securing Solana Programs with Open-Source Fuzzing

Hitansh Gopani
3 min readAug 4, 2024

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Trident is a groundbreaking open-source fuzzer specifically designed for Solana programs written in Anchor. Developed by Ackee Blockchain Security and supported by the Solana Foundation, this Rust-based framework simplifies the process of fuzzing and integration testing, helping developers ship secure code by uncovering vulnerabilities early in the development cycle

Background of Trident

The development of Trident began over two and a half years ago, originally under the name Trdelník. It gained recognition by winning the Marinade Finance community prize during the Solana Riptide Hackathon in 2022 and subsequently received a development grant from the Solana Foundation in 2023. Trident aims to streamline the testing process for developers, enabling them to create more robust applications by identifying edge-case vulnerabilities that might otherwise go unnoticed.

Key Features of Trident

Trident comes equipped with several powerful features:

Automated Fuzz Test Generation
This feature simplifies the creation of test templates for Anchor programs, significantly reducing setup time and effort.

Adaptive Inputs
Trident generates dynamic and adaptive inputs to improve test coverage, thereby uncovering hidden vulnerabilities.

Guided Instruction Sequences
Developers can utilize customizable sequences of instructions, which lead to faster and more effective testing results.

Invariant Checks
This allows developers to implement custom checks to identify vulnerabilities and unwanted behavior in their programs.

Testing Trident

To test Trident, developers can easily set it up in their projects using Rust’s cargo package manager. The installation process involves the following commands:

cargo install trident-cli

cargo install honggfuzz

trident init

Once set up, developers can create a new Anchor project, write fuzz tests, and run them to identify potential issues. For instance, a simple fuzz test can be written to check for various unexpected inputs, and debugging can be performed using crash files generated during the testing process

Critical Opinions on Key Features

Trident’s automated fuzz test generation and adaptive inputs are particularly noteworthy, as they significantly reduce the manual effort required in testing. However, while these features enhance efficiency, they may also lead to a reliance on automated processes, potentially overlooking nuanced issues that require human insight.The guided instruction sequences are a strong addition, allowing for tailored testing strategies. Yet, developers must still possess a solid understanding of their programs to create effective sequences.

One-Stop Resource for Trident

This article serves as a comprehensive resource for developers looking to get up to speed with Trident. It covers the essential background, key features, installation instructions, and testing methodologies, making it a valuable guide for both new and experienced developers in the Solana ecosystem.

Conclusion

In conclusion, Trident represents a significant advancement in the realm of testing Solana programs. By providing a robust framework for fuzzing and integration testing, it empowers developers to create more secure applications. As the Solana ecosystem continues to grow, tools like Trident will play a crucial role in ensuring the reliability and security of decentralized applications. For further exploration, developers can access the Trident GitHub, check out the Trident Docs, and view the Fuzzing Guide for hands-on tutorials.

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