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Homomorphic encryption is form of encryption which allows mathematical operations to be carried out on an encrypted message, using only the ciphertext. Cryptography.SE may be more suitable for some questions on this topic.
12
votes
Accepted
In what ways does Full or Partial Homomorphic Encryption benefit the cloud?
It is already possible, via end-to-end voting systems like Helios to publicly store voted ballots in the cloud in an encrypted fashion, so that the public can add them up to confirm the totals, and to …
9
votes
What Partial Homomorphic Encryption implementations exist and how do I leverage them?
An example of practical use of PHE (and El Gamal in particular) is Helios Voting. With it you can publicly store encrypted voted ballots in the cloud, and also allow the public to both add them up to …