pub fn try_combine_lo_hi_ciphertexts(
ciphertext_lo: &ElGamalCiphertext,
ciphertext_hi: &ElGamalCiphertext,
bit_length: usize,
) -> Option<ElGamalCiphertext>
pub fn try_combine_lo_hi_ciphertexts(
ciphertext_lo: &ElGamalCiphertext,
ciphertext_hi: &ElGamalCiphertext,
bit_length: usize,
) -> Option<ElGamalCiphertext>