TNO-MPC/dpaillier

Questions & Support for floating points

mmRoshani opened this issue · 1 comments

mmRoshani commented

Hello,
First of all thanks for the clean architecture provided code.

Currently, I am working with Distributed Federated Learning and it is required for my project to have Multikey Homomorphic Encryption but as I searched I found your repository and I have two questions.

  1. Does it make sense to use dpaillier for my problem?
  2. How is it possible to add support for floating point numbers (like CKKS schema), Would you guide me to do so?

Regards.

grebnetiew commented

Hi!

  1. This depends on what exactly your constraints are, and what you mean by the "multi-key" aspect. dpaillier allows you to have one public key (anybody can encrypt) but a threshold private key (cooperation between mutliple parties is required to decrypt).
  2. There is no floating point support, only manually implemented fixed-point (i.e. multiply summands by 100, divide results by 100). There aren't any current plans to support floating point computation, but pull requests are of course welcomed ;)