# 🚀 New Release: antispy SDK 2025.1.0

> Because shipping an antispy SDK in 2025 still makes sense.

- Published: 2025-04-22
- Author: Sven Scharmentke
- Canonical: https://svnscha.de/posts/antispy-sdk-release/
- Tags: antispy-sdk, security, cpp, reverse-engineering, release

---

I work on system insights and observability with the [uberAgent](https://uberagent.com) team at Citrix. Outside work, [Rene Windegger](https://www.windegger.wtf/) and I maintain the antispy SDK. We have worked on it for six years, and version 2025.1.0 is now available.

What began as a weekend experiment to confuse disassemblers has grown into an SDK for developers who want to make binary analysis more difficult.

## What's New?

### 📚 Comprehensive Documentation
We've documented everything-every macro, every intricate detail of the virtual machine, and even the obscure compile-time tricks. Explore it all at [antispy.xyz/docs](https://antispy.xyz/docs). Plus, you can test examples live.

### ✨ Compiler Explorer Integration
Meet [play.antispy.xyz](https://play.antispy.xyz), your in-browser playground for experimenting with the SDK. Adjust macros, tweak compile options, and analyze disassembly to your heart's content. Think of it as godbolt, but tailored for the paranoid.
#### Example

Explore the demo showcasing `libantispy::encrypted_ptr`, a feature that compiles into 22 basic blocks of obfuscated code-serious protection in action.

```cpp
#include <antispy/libantispy.h>

int main() {
    libantispy::encrypted_pointer<int> ptr;
}
```

![Demo 1](/casts/2025-04-22-antispy-sdk-release-demo1.png)

- Try it yourself: [play.antispy.xyz - libantispy::encrypted_pointer](https://play.antispy.xyz/z/E3dh9aPr93zcfjMoW5oazMfnr9o5KxEqYGabEsY8vb46fzrj1fr1)

Unlike `libantispy::encrypted_pointer`, the standard `std::shared_ptr` behaves quite differently, as demonstrated below:

After all, `std::shared_ptr` isn't designed to be obfuscated, is it?

![Demo 2](/casts/2025-04-22-antispy-sdk-release-demo2.png)

### 🧠 Constexpr Code Generation
The antispy virtual machine now supports full compile-time constexpr functionality. Transform data, encrypt logic, and generate obfuscation layers-all before runtime. Who needs CPU cycles anyway?

### ⚙️ Updated Toolchains
We've modernized everything so you don't have to:
- **Android + iOS SDKs:** ✅
- **Outdated compilers:** 🪦
- **Legacy baggage:** 🔥

If you're still using GCC 4.x, well, good luck.

## Why antispy SDK?

The antispy SDK is useful for high-assurance binaries, anti-reversing work, or experiments with disassemblers. It includes documentation and a live explorer so you can try the available techniques before adding them to a project.

### Platforms & Architectures

The antispy SDK supports the following major compilers and CPU architectures when C++20 is available:

- **Windows:** x86, x64, ARM64
- **Linux:** x86, x64, ARM64
- **macOS:** ARM and Intel
- **iOS:** Including tvOS, watchOS, visionOS
- **Android:** x86, x86_64, armeabi-v7a, armv8a
- **Bare Metal SOCs:** Fully supported

This gives you the same API across the supported platforms.

**TL;DR:** If C++ metaprogramming excites you and you believe binaries should fight back, this SDK is your perfect match.

Got feedback, feature requests? Let us know-we're probably not sleeping anyway.