ethwalletbypassword Get wallets fpom miner by password in private blo…

…ckchain

docs/examples/zencode_cookbook/ethereum/doc_key_pass.py

@@ -0,0 +1,48 @@
+from web3 import Web3
+import eth_keys
+from eth_account import account
+from zenroom import zenroom
+import json
+
+password = 'My_pass'
+keyfile = open('./UTC--2024-07-16T10-09-46.525942921Z--e...1')
+keyfile_contents = keyfile.read()
+keyfile.close()
+
+
+private_key = eth_keys.keys.PrivateKey(account.Account.decrypt(keyfile_contents, password))
+print(private_key)
+public_key = private_key.public_key
+print(public_key)
+
+private_key_str = str(private_key)
+
+conf = ""
+
+keys = {
+    "participant": {
+        "keyring": {
+            "ethereum": private_key_str
+        }
+    }
+}
+
+data = {
+}
+
+
+
+
+
+contract = """Scenario ethereum: sign ethereum message
+
+# Here we are loading the private key and the message to be signed
+Given I am 'participant'
+Given I have my 'keyring'
+When I create the ethereum address
+Then print my 'ethereum address'
+Then print the keyring
+"""
+
+result = zenroom.zencode_exec(contract, conf, json.dumps(keys), json.dumps(data))
+print(result.output)

docs/pages/zencode-scenarios-ethereum.md

@@ -30,6 +30,19 @@ Then you can upload it with a script that looks like the following script:
 
 [](../_media/examples/zencode_cookbook/ethereum/doc_key_upload.zen ':include :type=code gherkin')
 
+## Get a private key by password
+If we use [private ethereum blockchain](https://medium.com/scb-digital/running-a-private-ethereum-blockchain-using-docker-589c8e6a4fe8), then our keyring located in docker conteiner: geth-miner.
+
+Path like that: /root/.ethereum/keystore/UTC--2024-07-16T10-09-46.525942921Z--e...1
+
+Usually, access from the network is not possible to this file. But there is more or less [standard access](https://github.com/ethereum/go-ethereum/blob/master/cmd/clef/tutorial.md)
+
+The following script allows you to log in using only a password and automatically receives keyrings already generated by the miner.
+
+
+[](../_media/examples/zencode_cookbook/ethereum/doc_key_pass.py ':include :type=code gherkin')
+
+
 
 ## Public key
 
@@ -39,6 +52,8 @@ If, for any reason, you need the ethereum public key, then you can simply comput
 
 [](../_media/examples/zencode_cookbook/ethereum/doc_pubgen.zen ':include :type=code gherkin')
 
+
+
 # Create Ethereum address