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Home»ADOPTION NEWS»NVIDIA enhances data privacy with homomorphic encryption for Federated XGBoost.
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NVIDIA enhances data privacy with homomorphic encryption for Federated XGBoost.

By Crypto FlexsDecember 19, 20243 Mins Read
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NVIDIA enhances data privacy with homomorphic encryption for Federated XGBoost.
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Timothy Morano
December 19, 2024 05:09

NVIDIA introduces CUDA-accelerated homomorphic cryptography in Federated XGBoost to improve data privacy and efficiency in federated learning. These advancements address security concerns in both horizontal and vertical collaboration.





NVIDIA has made significant advances in data privacy for federated learning by integrating CUDA-accelerated homomorphic encryption into Federated XGBoost. According to NVIDIA, this development aims to address security concerns in both horizontal and vertical federated learning collaboration.

Federation XGBoost and its applications

XGBoost, a widely used machine learning algorithm for modeling tabular data, has been extended by NVIDIA to support multi-site collaborative training with Federated XGBoost. This plugin allows your model to operate on distributed data sources in both horizontal and vertical settings. In vertical federated learning, the parties hold different features of the dataset, whereas in a horizontal setting, each party holds all the features for a subset of the population.

NVIDIA FLARE, an open source SDK, supports this federated learning framework by managing communication issues and ensuring smooth operation under diverse network conditions. Although Federated

Strengthening security through homomorphic encryption

To mitigate potential data leaks, NVIDIA has integrated homomorphic encryption (HE) into Federated XGBoost. This encryption keeps data secure during computation, addressing the ‘honest but curious’ threat model where participants can attempt to infer sensitive information. Integration includes both CPU-based and CUDA-accelerated HE plugins, the latter offering significant speed advantages over existing solutions.

In vertical federated learning, the active party encrypts the gradients before sharing them with the passive party, ensuring that sensitive label information is protected. In horizontal learning, local histograms are encrypted before they are aggregated, preventing servers or other clients from accessing the raw data.

Increased efficiency and performance

NVIDIA’s CUDA-accelerated HE delivers up to 30x speedup for vertical XGBoost compared to existing third-party solutions. These performance improvements are critical for applications with high data security requirements, such as financial fraud detection.

Benchmarks conducted by NVIDIA demonstrate the robustness and efficiency of the solution across a variety of data sets and highlight significant performance improvements. These results highlight the potential of GPU-accelerated encryption to transform data privacy standards in federated learning.

conclusion

The integration of homomorphic encryption into Federated XGBoost represents an important step forward in secure federated learning. By providing powerful and efficient solutions, NVIDIA addresses the twin challenges of data privacy and computing efficiency, paving the way for broader adoption in industries requiring stringent data protection.

Image source: Shutterstock


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