# Paillier Cryptosystem Package paillier contains [Paillier's cryptosystem (1999)](http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.112.4035&rep=rep1&type=pdf). All routines here from pseudocode ยง2.5. Fig 1: The Paillier Cryptosystem. This module provides APIs for: - generating a safe keypair - encryption and decryption - adding two encrypted values, `Enc(a)` and `Enc(b)`, and obtaining `Enc(a + b)`, and - multiplying a plain value, `a`, and an encrypted value `Enc(b)`, and obtaining `Enc(a * b)`. The encrypted values are represented as `big.Int` and are serializable. This module also provides JSON serialization for the PublicKey and the SecretKey.