Update Xor5 template in utils.circom #39
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Xor5 template is optimized. Instead of 4 constraints per bit, only 3 constraints are needed.
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Xor5 template is optimized. Instead of 4 constraints per bit, only 3 constraints are needed. Xor function is equal to parity check of the sum of inputs. Therefore, the value of least significant bit of sum of inputs is equal to the output of Xor.