Generate proving key for proving membership in an accumulator in zero knowledge. Proving key is
public data that must be known to both the prover and verifier. Any prover and verifier pair can mutually agree
on a proving key and the manager does not need to be aware of any proving key.
Param: label
The bytearray that is hashed to deterministically generate the proving key.
Generate proving key for proving membership in an accumulator in zero knowledge. Proving key is public data that must be known to both the prover and verifier. Any prover and verifier pair can mutually agree on a proving key and the manager does not need to be aware of any proving key.
Param: label
The bytearray that is hashed to deterministically generate the proving key.