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PSACrypto is an ESPRESSIF ESP32 component that implements the cryptography functionality of the Platform Security Architecture (PSA) API.

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# PSACrypto Espressif Component

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PSACrypto is an ESPRESSIF ESP32 component that implements the cryptography functionality of the Platform Security Architecture (PSA) API. It provides a standardized and easy-to-use interface for cryptographic operations on ESP32 boards, ensuring secure communication, data integrity, and confidentiality.



PSACrypto is designed specifically for building Decentralized Physical Infrastructure Networks ([DePIN](https://iotex.io/blog/what-are-decentralized-physical-infrastructure-networks-depin/)) projects. To find more examples of the DePIN project, you can explore [DePIN Scan](https://depinscan.io/).



## Features

- **Secure Key Generation**: Generate secure cryptographic keys for various algorithms.
- **Hash Functions**: Compute hash values using cryptographic hash functions.
- **Symmetric Encryption**: Encrypt and decrypt data using symmetric encryption algorithms.
- **Asymmetric Encryption**: Perform public key encryption and decryption operations.
- **Random Number Generation**: Generate random numbers for secure cryptographic operations.

## Installation

### Espressif IDE

To install the PSACrypto library using the Espressif IDE, follow these steps:

1. Open the Espressif IDE.
2. Right click on your project.
3. Select **Install ESP-IDF components** from the menu list.
4. The **Install components** window will open, showing a list of available libraries.
5. In the search bar, type "PSACrypto" and press Enter.
6. Locate the "PSACrypto" library in the search results.
7. Click on the library entry to open its details.
8. Click the "Install" button to install the library.
9. Wait for the installation process to complete.
10. After installation, close the Library Manager window.
11. The PSACrypto library is now installed and ready to be used.

### Manual Installation

To install the PSACrypto library manually, follow these steps:

1. Download the PSACrypto library from the [GitHub repository](https://github.com/machinefi/psa-crypto).
2. Extract the downloaded ZIP file.
3. Rename the extracted folder to "PSACrypto".
4. Move the "PSACrypto" folder to your project's components directory. The default locations are:
5. Start or restart the IDE.
7. You can now include the library in your project and use its features.

### PlatformIO

To install the PSACrypto library using PlatformIO, follow these steps:

1. Create a new PlatformIO project or open an existing one.
2. Open the `platformio.ini` file located in the root of your project.
3. Add the following line to the `[env:<your_board>]` section:

```ini
lib_deps =
    PSACrypto
```

Replace <your_board> with the target board/platform for your project (e.g., esp32, arduino_due, etc.).

1. Save the platformio.ini file.
2. PlatformIO will automatically install the PSACrypto library and its dependencies when you build/upload your project.

## Usage

### Espressif IDE

1. Open the Espressif IDE.
2. Go to File > Import > Espressif > Existing IDF Project to access the example projects.
3. Select an example project to open it.
4. Modify the project as needed to fit your requirements.
5. Build & Upload the project to your ESP board.
6. Open the Serial Monitor to view the output.

### PlatformIO

1. Open your PlatformIO project.
2. Navigate to the src folder.
3. Create a new .cpp file or open an existing one.
4. Include the PSACrypto library by adding the following line at the top of your file:

```c++
# include <PSACrypto.h>
```

For detailed information on using the PSACrypto library, including usage examples and API reference, please refer to the [Documentation](docs/).

## Compatible Hardware

The PSACrypto library has been tested and is compatible with the following hardware:

- ESP32

Please note that the library may also work with other Arduino-compatible boards, but it has specifically been tested and verified with the above-mentioned hardware.

It's recommended to check the official documentation of your specific board or consult the manufacturer's specifications to ensure compatibility with the PSACrypto library.

## Contributing

Contributions are welcome! Please follow the guidelines in [CONTRIBUTING.md](CONTRIBUTING.md) to contribute to this project.

## License

This library is licensed under Apache License 2.0. See the [LICENSE](LICENSE) file for more information.

## Credits

- [IoTeX](https://iotex.io/)
- [MachineFi](https://github.com/machinefi/)

Links

Supports all targets

License: Apache-2.0

To add this component to your project, run:

idf.py add-dependency "iotex-embedded/psacrypto^1.0.2"

or download archive

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iotex-embedded/psacrypto version: 1.0.2
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