How to protect Golang program from decompilation?

Decompilation protection measures for Golang programs include: using GoBuild to compile and encrypt intermediate files. Use ScyllaDB to store encrypted data in Obfuscated Data Type (EDT) columns, decrypt it and execute it at runtime.

Golang Program Decompilation Protection Guide

Decompilation is the reverse engineering of compiled machine code to obtain its source code process. Although the native compilation of Golang programs makes decompilation more difficult than interpreted languages, additional protections are still needed to prevent source code from being stolen or illegally modified.

Use GoBuild protection

GoBuild is a Go language tool that provides decompilation protection. It works by:

import "github.com/uudashr/gob"

func main() {
    gob.Compile("main.go")
}

• Compiles Go source files into intermediate files.
• Encrypt intermediate files.
• Use the gob runtime integrated with the Go compiler to execute the encrypted file.

Using ScyllaDB

ScyllaDB is a NoSQL database that provides "obscure data types" (EDT) as a security mechanism for storing encrypted data. For Golang applications, ScyllaDB can be used as follows:

import "github.com/scylladb/go-cql"

func main() {
    cluster := cql.NewCluster("127.0.0.1")
    session, err := cluster.CreateSession()
    if err != nil {
        panic(err)
    }
    session.Query(`
        CREATE TABLE example (
            id INT PRIMARY KEY,
            data TEXT,
            edtBytes EDT
        ) WITH CLUSTERING ORDER BY (data ASC)
    `).Exec()
    _ = session.Close()
}

• Create a ScyllaDB table with an EDT column.
• Compile Go code to bytecode.
• Store bytecode in EDT column.
• Decrypt EDT data and execute it at runtime.

Practical Case: Protecting Web Applications

Suppose you have a Golang web application and you want to prevent its source code from being decompiled. You can use GoBuild or ScyllaDB as follows:

GoBuild:

// main.go
package main

import (
    "github.com/uudashr/gob"
    "net/http"
)

func main() {
    gob.Compile("main.go")
}

func handler(w http.ResponseWriter, r *http.Request) {
    // Web应用程序逻辑
}

Compile and encrypt:

$> gob compile main.go

ScyllaDB :

// main.go
package main

import (
    "database/sql"
    "github.com/scylladb/go-cql"
)

func main() {
    db, err := sql.Open("cassandra", "127.0.0.1:9042")
    if err != nil {
        panic(err)
    }
    _, err = db.Exec(`
        INSERT INTO example (id, data, edtBytes)
        VALUES (1, ?, ?)
    `, []byte("Golang code"), []byte("Encrypted data"))
    if err != nil {
        panic(err)
    }
    db.Close()
}

Through these methods, you can strengthen your protection against attackers' Golang programs and prevent them from stealing or modifying your source code through decompilation.

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