ABY3

•New Protocols:

•Efficient support for fixed-point arithmetics

•Improved matrix multiplication

•Efficient piece-wise polynomial evaluation

•Conversions between Arithmetic, Boolean, and Yao secret shares

•Prototype machine learning implementation:

•Linear Regression – 12000 iterations / second

•Logistic Regression – 2000 iterations / second

•Neural Networks – 10 millisecond inference