# Does CPA-secure means security against differential cryptanalysis?

I've read on differential cryptanalysis where it traces the differences on the changes of ciphertexts of the same plaintext, except for some bits.

However, I wonder is the differential cryptanalysis is applicable to CPA secure cryptos like El-Gamal?

ElGamal, however, is an asymmetric encryption scheme. Its CPA security essentially relies on the decisional Diffie-Hellman assumption in some group $\mathbb{G}$. Roughly speaking, under this assumption, the adversary can not distinguish the ElGamal ciphertext $C = (C_1, C_2)$ from a random element in $\mathbb{G} \times \mathbb{G}$.