# NuCypher Network # #################### L1_NETWORK = 'mainnet' # or 'ibex' L2_NETWORK = 'polygon' # or 'mumbai' ##################### # Bob the BUIDLer ## ##################### # Then, there was bob. Bob learns about the # rest of the network from the seednode. bob = Bob(domain=L1_NETWORK) # Bob puts his public keys somewhere alice can find them. verifying_key = bob.public_keys(SigningPower) encrypting_key = bob.public_keys(DecryptingPower) ###################################### # Alice, the Authority of the Policy # ###################################### # Connect to the ethereum provider. connect_web3_provider(eth_provider_uri=L1_PROVIDER) # Connect to the layer 2 provider. connect_web3_provider(eth_provider_uri=L2_PROVIDER) # Setup and unlock alice's ethereum wallet. # WARNING: Never give your mainnet password or mnemonic phrase to anyone. # Do not use mainnet keys, create a dedicated software wallet to use for this demo. wallet = Signer.from_signer_uri(SIGNER_URI)
nucypher_signing_key, alice_nucypher_signing_pub_key).transact()
w3.eth.waitForTransactionReceipt(tx_hash)
#########################
# Bob the data receiver #
#########################
bob = Bob(known_nodes=[ursula],
domains={TEMPORARY_DOMAIN},
network_middleware=RestMiddleware(),
federated_only=True,
start_learning_now=True,
learn_on_same_thread=True)
# store public keys on chain
w3.eth.defaultAccount = bob_eth_address
bob_nucypher_decrypting_pub_key = bob.public_keys(DecryptingPower).to_bytes()
tx_hash = bob_proxy_account.functions.setData(
nucypher_decrypting_key, bob_nucypher_decrypting_pub_key).transact()
w3.eth.waitForTransactionReceipt(tx_hash)
bob_nucypher_signing_pub_key = bob.public_keys(SigningPower).to_bytes()
tx_hash = bob_proxy_account.functions.setData(
nucypher_signing_key, bob_nucypher_signing_pub_key).transact()
w3.eth.waitForTransactionReceipt(tx_hash)
#####################################################
# Alice creates the policy and grants access to Bob #
#####################################################
# Alice can get the public key even before creating the policy.
# From this moment on, any Data Source like Enrico that knows the public key
# can encrypt data originally intended for Alice, but that can be shared with
