DistributedFuzzyLargeUniverse

[rheitjoh]

(This issue has been imported from the Gitlab repository because it seems to not have been addressed yet)

Note: This scheme is not in Predenc anymore. I guess it was never implemented?

Original Text (Issue 142)

ATM this commit introduced a refactored version of the DistributedFuzzyScheme from the old PG. Unfortunately, I cannot find the bug that causes this whole scheme to fail. I did several code reviews and compared it to the paper. Somehow the Lagrange-Interpolation in the encrption(!) fails. This means that either the KeyShares are incorrect, or the test of the validity of the KeyShares in the encrypt method fails (this is unlikely since the EncryptionSchemeTest fails even if the KeyShare validity test is not performed). Since I unfortunately do not have the theoretical background knowledge to understand where my implementation differs from the paper either [at]feidens or [at]jbobolz should check this implementation (A good starting point would be to check if the scheme has a correct setup in the DistributedFuzzyParams class).