Google 发布基于 TEE 的新一代联邦学习系统
Google 发布新一代联邦学习系统,利用可信执行环境(TEE)提供可外部验证的隐私保证,并将计算转移到服务器端以提升训练速度、准确率和设备覆盖。Gboard 已采用该系统上线英语和日语下一词预测模型,训练时间从此前的 1-2 个月大幅缩短,瓶颈转移到服务器端。系统通过公开透明日志 Rekor 发布访问策略,KMS 与数据处理二进制可从 Confidential Federated Compute 开源仓库复现构建。

lly be participating in. The KMS and data processing binaries used in our FL system can be reproducibly built from open source code published in the Confidential Federated Compute Github repository. Verifiable execution with dynamic sideloading In our earlier FL systems, the logic running on the server could be verified neither by devices nor auditors, and thus we needed to be trusted to correctly add random noise to gradient sums to provide differential privacy. In our new TEE-based FL system,
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