Source code for nvflare.app_opt.he.decomposers

# Copyright (c) 2023, NVIDIA CORPORATION.  All rights reserved.
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# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
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#     http://www.apache.org/licenses/LICENSE-2.0
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"""Decomposers for HE related classes"""
from typing import Any

import tenseal as ts

from nvflare.fuel.utils import fobs
from nvflare.fuel.utils.fobs.datum import DatumManager


[docs] class CKKSVectorDecomposer(fobs.Decomposer):
[docs] def supported_type(self): return ts.CKKSVector
[docs] def decompose(self, target: ts.CKKSVector, manager: DatumManager = None) -> Any: return target.serialize(), target.context().serialize()
[docs] def recompose(self, data: Any, manager: DatumManager = None) -> ts.CKKSVector: vec_data, ctx_data = data context = ts.context_from(ctx_data) return ts.ckks_vector_from(context, vec_data)
[docs] def register(): if register.registered: return fobs.register(CKKSVectorDecomposer) register.registered = True
register.registered = False