使用Parity建立Proof-of-Authority (PoA) Ethereum Chain

5分鐘快速從無到有建立Ethereum聯盟鏈

yaohsin
yaohsin
Feb 13, 2017 · 17 min read

1. 安裝Parity (1.5.0以上版本)

2. 設定chain spec

{
"name": "DemoPoA",
"engine": {
"authorityRound": {
"params": {
"gasLimitBoundDivisor": "0x400",
"stepDuration": "5",
"validators" : {
"list": []
}
}
}
},
"params": {
"maximumExtraDataSize": "0x20",
"minGasLimit": "0x1388",
"networkID" : "0x2323"
},
"genesis": {
"seal": {
"authorityRound": {
"step": "0x0",
"signature": "0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
}
},
"difficulty": "0x20000",
"gasLimit": "0x5B8D80"
},
"accounts": {
"0x0000000000000000000000000000000000000001": { "balance": "1", "builtin": { "name": "ecrecover", "pricing": { "linear": { "base": 3000, "word": 0 } } } },
"0x0000000000000000000000000000000000000002": { "balance": "1", "builtin": { "name": "sha256", "pricing": { "linear": { "base": 60, "word": 12 } } } },
"0x0000000000000000000000000000000000000003": { "balance": "1", "builtin": { "name": "ripemd160", "pricing": { "linear": { "base": 600, "word": 120 } } } },
"0x0000000000000000000000000000000000000004": { "balance": "1", "builtin": { "name": "identity", "pricing": { "linear": { "base": 15, "word": 3 } } } }
}
}

3. 設定兩個node

parity --chain demo-spec.json -d /tmp/parity0 --port 30300 --jsonrpc-port 8540 --ui-port 8180 --dapps-port 8080 --jsonrpc-apis web3,eth,net,personal,parity,parity_set,traces,rpc,parity_accounts
[parity]
chain = "demo-spec.json"
base_path = "/tmp/parity0"
[network]
port = 30300
[rpc]
port = 8540
apis = ["web3", "eth", "net", "personal", "parity", "parity_set", "traces", "rpc", "parity_accounts"]
[ui]
port = 8180
[dapps]
port = 8080
[parity]
chain = "demo-spec.json"
base_path = "/tmp/parity1"
[network]
port = 30301
[rpc]
port = 8541
apis = ["web3", "eth", "net", "personal", "parity", "parity_set", "traces", "rpc", "parity_accounts"]
[ui]
port = 8181
[dapps]
port = 8081

4. 設定帳號(Account)

啟動parity node0
選擇第二項
輸入user
完成User account
選擇第二項
輸入node0
最後要看到User與Node0 (Authority) account
啟動Parity node1
輸入node1
完成Authority account
"validators" : {
"list": [
"0x00Bd138aBD70e2F00903268F3Db08f2D25677C9e",
"0x00Aa39d30F0D20FF03a22cCfc30B7EfbFca597C2"
]
}
"0x004ec07d2329997267Ec62b4166639513386F32E": { "balance": "10000000000000000000000" }
{
"name": "DemoPoA",
"engine": {
"authorityRound": {
"params": {
"gasLimitBoundDivisor": "0x400",
"stepDuration": "5",
"validators" : {
"list": [
"0x00Bd138aBD70e2F00903268F3Db08f2D25677C9e",
"0x00Aa39d30F0D20FF03a22cCfc30B7EfbFca597C2"
]
}
}
}
},
"params": {
"maximumExtraDataSize": "0x20",
"minGasLimit": "0x1388",
"networkID" : "0x2323"
},
"genesis": {
"seal": {
"authorityRound": {
"step": "0x0",
"signature": "0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
}
},
"difficulty": "0x20000",
"gasLimit": "0x5B8D80"
},
"accounts": {
"0x0000000000000000000000000000000000000001": { "balance": "1", "builtin": { "name": "ecrecover", "pricing": { "linear": { "base": 3000, "word": 0 } } } },
"0x0000000000000000000000000000000000000002": { "balance": "1", "builtin": { "name": "sha256", "pricing": { "linear": { "base": 60, "word": 12 } } } },
"0x0000000000000000000000000000000000000003": { "balance": "1", "builtin": { "name": "ripemd160", "pricing": { "linear": { "base": 600, "word": 120 } } } },
"0x0000000000000000000000000000000000000004": { "balance": "1", "builtin": { "name": "identity", "pricing": { "linear": { "base": 15, "word": 3 } } } },
"0x004ec07d2329997267Ec62b4166639513386F32E": { "balance": "10000000000000000000000" }
}
}

5. 啟動Authority node

node0
node1
[parity]
chain = "demo-spec.json"
base_path = "/tmp/parity0"
[network]
port = 30300
[rpc]
port = 8540
apis = ["web3", "eth", "net", "personal", "parity", "parity_set", "traces", "rpc", "parity_accounts"]
[ui]
port = 8180
[dapps]
port = 8080
[account]
password = ["node.pwds"]
[mining]
engine_signer = "0x00Bd138aBD70e2F00903268F3Db08f2D25677C9e"
reseal_on_txs = "none"
[parity]
chain = "demo-spec.json"
base_path = "/tmp/parity1"
[network]
port = 30301
[rpc]
port = 8541
apis = ["web3", "eth", "net", "personal", "parity", "parity_set", "traces", "rpc", "parity_accounts"]
[ui]
port = 8181
[dapps]
port = 8081
[account]
password = ["node.pwds"]
[mining]
engine_signer = "0x00Aa39d30F0D20FF03a22cCfc30B7EfbFca597C2"
reseal_on_txs = "none"

6.連接兩個node

{
"jsonrpc":"2.0",
"method":"parity_enode",
"params":[],
"id":0
}
取得enode連接資訊
{
"jsonrpc":"2.0",
"method":"parity_addReservedPeer",
"params":["enode://6c4f53fc8536553c8f151516b7ee17f4b0719d21abe8fdd273588419cf467e3deafb414cd8efa331e4ad55fd7c2820a303a160895129e142a4306e7c3367d67c@172.20.160.80:30300"],
"id":0
}
成功加入

補充:分享給區網內其他人使用

[parity]
chain = "demo-spec.json"
base_path = "/tmp/parity0"
[network]
port = 30300
[rpc]
port = 8540
apis = ["web3", "eth", "net", "personal", "parity", "parity_set", "traces", "rpc", "parity_accounts"]
interface = "192.168.1.1"
[ui]
port = 8180
[dapps]
port = 8080
[account]
password = ["node.pwds"]
[mining]
engine_signer = "0x00Bd138aBD70e2F00903268F3Db08f2D25677C9e"
reseal_on_txs = "none"
[parity]
chain = "demo-spec.json"
base_path = "/tmp/parity1"
[network]
port = 30301
[rpc]
port = 8541
apis = ["web3", "eth", "net", "personal", "parity", "parity_set", "traces", "rpc", "parity_accounts"]
interface = "192.168.1.1"
[ui]
port = 8181
[dapps]
port = 8081
[account]
password = ["node.pwds"]
[mining]
engine_signer = "0x00Aa39d30F0D20FF03a22cCfc30B7EfbFca597C2"
reseal_on_txs = "none"

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yaohsin

Written by

yaohsin

software engineer and dad.

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