2025-03-26 11:46:34 +01:00

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//
pragma circom 2.0.0;
include "poseidon2_sponge.circom";
//------------------------------------------------------------------------------
// Hash `n` field elements into 1, with approximately 254 bits of preimage security (?)
// (assuming bn128 scalar field. We use capacity=2, rate=1, t=3).
template Poseidon2_hash(n) {
signal input inp[n];
signal output out;
component sponge = PoseidonSponge(3,2,n,1);
sponge.inp <== inp;
sponge.out[0] ==> out;
}
//------------------------------------------------------------------------------