# Homomorphic Encryption Notation Question

What does the following notation mean in a homomorphic encryption scheme?

ENC(x;r)


What does x and r refer to?

• was closed as 'unclear what you're asking'. Might not be a 'difficult' question, but its very clear – figlesquidge Feb 4 '14 at 20:39

• No, since it uses X instead of m. $\;$ – user991 Jan 30 '14 at 6:31
• That would be additive ElGamal. $\:$ Two other possibilities are multiplicative ElGamal and Cramer-Shoup. $\;\;\;$ – user991 Jan 30 '14 at 21:11