Release 0.4.2
* Add return value for ElGamal homomorphic multiplicative scheme * Added bash/zsh to README.md * ElGamal homomorphic multiplicative decryption with identical random value * ElGamal baby-step giant-step
* Add return value for ElGamal homomorphic multiplicative scheme * Added bash/zsh to README.md * ElGamal homomorphic multiplicative decryption with identical random value * ElGamal baby-step giant-step