Regarding ckks multiplication, I would like to ask what preparations need to be made before multiplying two ciphertexts.？
My error: /openfhe-development/src/pke/lib/cryptocontext.cpp:93 You need to use EvalMultKeyGen so that you have an EvalMultKey available for this ID
You need to make sure that you have generated the relinearization key before performing multiplication. Check this procedure in the simple CKKS demonstrative example which generates the relinearization key.
