Paillier Crypto System¶
Paillier crypto system and two-party runtime.
The PaillierRuntime is a special two-player runtime based on the homomorphic Paillier crypto system.
From the paper “Public-Key Cryptosystems Based on Composite Degree Residuosity Classes” by Pascal Paillier in EUROCRYPT 1999, 223-238.
- class viff.paillier.PaillierRuntime(player, threshold, options=None)¶
Two-player runtime based on the Paillier crypto system.
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- add(share_a, share_b)¶
Addition of shares.
Communication cost: none.
- input(inputters, field, number=None)¶
Input number to the computation.
The input is shared using the share() method.
- mul(share_a, share_b)¶
- Multiplication of shares.
- open(share, receivers=None)¶
- Open share to receivers (defaults to both players).
- Generate a share of a uniformly random element.
- Share number additively.
- viff.paillier.encrypt(m, pubkey)¶
- viff.paillier.decrypt(c, seckey)¶