Generate a joint sum-key share for multi-party EvalSum

Generate a joint sum-key share for multi-party EvalSum

Usage

multi_eval_sum_key_gen(cc, sk, eval_key_map, key_tag = "")

Arguments

cc

A CryptoContext.

sk

This party's PrivateKey share.

eval_key_map

An existing EvalKeyMap carrying the prior-party sum-key state, obtained via get_eval_sum_key_map() after the lead party has populated the cc registry through eval_sum_key_gen().

key_tag

Character; default "".

Value

An EvalKeyMap.