Code for Eges: Efficient and DoS-resistant Consensus for Permissioned Blockchains

###sample genesis.json

{
    "config": {
        "chainId": 930412,
        "homesteadBlock": 0,
        "eip155Block": 0,
        "eip158Block": 0,
        "thw": {
            "SGX": false,
            "bootstrap": [
                {
                    "account": "0e95127d0cea333d4ed6a0b304aebea8d1c83bc0",
                    "ip": "127.0.0.1",
                    "port": "10000"
                },
                {
                    "account": "88fb7ec6b584fa741ad1a090977fadb20d1223da",
                    "ip": "127.0.0.1",
                    "port": "10001"
                },
                {
                    "account": "461a841c629df9b22769e103bd076ed4d1a01ed1",
                    "ip": "127.0.0.1",
                    "port": "10002"
                }
            ],
            "backoff_time": 0,
            "reg_per_blk": 1000,
            "registration_timeout": 10,
            "validate_timeout": 500,
            "election_timeout": 100
        }
    },
    "coinbase": "0x0000000000000000000000000000000000000000",
    "difficulty": "0x40000",
    "extraData": "",
    "gasLimit": "0xffffffff",
    "nonce": "0x0000000000000042",
    "mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "timestamp": "0x00",
    "alloc": {}
}

SGX Code is being refactored.

• available in the cosensus/eges folder.

sample commands

normal nodes

 /usr/bin/nohup ./build/bin/geth --datadir data/02 --unlock 461a841c629df9b22769e103bd076ed4d1a01ed1 --password ./pass  --verbosity 4 --networkid 930412 --ipcdisable --port 61902 --rpc --rpccorsdomain "*" --rpcport 8102 --bootnodes enode://108af4e14c1451c73255c00cbff83330924da9b4b24ce57684dc34c8c5ae27a6e15f4a77a3e5c9724c7b0ecaa1435a9a3474520486186d90764193f7f2cf3d6b@127.0.0.1:30301 --consensusPort "10002" --consensusIP 127.0.0.1  --syncmode "full" --maxpeers 100 --nCandidates 3 --nAcceptors 4 --blockTimeout 20 --txnPerBlock 1000 --txnSize 100 --totalNodes 3 --mine --breakdown  1>>data/logs/02 2>&1 &

nodes with Geec API (for application testing)

./build/bin/geth --datadir data/00 --unlock 0e95127d0cea333d4ed6a0b304aebea8d1c83bc0 --password ./pass  --verbosity 4 --networkid 930412 --ipcdisable --port 61900 --rpc --rpccorsdomain "*" --rpcport 8100 --bootnodes enode://108af4e14c1451c73255c00cbff83330924da9b4b24ce57684dc34c8c5ae27a6e15f4a77a3e5c9724c7b0ecaa1435a9a3474520486186d90764193f7f2cf3d6b@127.0.0.1:30301 --consensusPort "10000" --consensusIP 127.0.0.1  --syncmode "full" --maxpeers 100 --nCandidates 3 --nAcceptors 4 --blockTimeout 20 --txnPerBlock 1000 --txnSize 100 --totalNodes 3 --mine --breakdown  --geecTxnPort 3333 1>>data/logs/00 2>&1 &

Make

1. Ensure the code path is correct:

ROOT=$GOPATH/src/github.com/ethereum/go-ethereum

2. Compile the dependent election lib:

cd $ROOT/consensus/trustedHW/election/lib
cmake .
make

3. Make

cd $ROOT
make all

4. Config and start

cp config-test.json xxx.json

vim start.py //change the config_file_name to xxx.json

Config

Explanation of the fields in config.json

Parameter	explanation	type(unit)
bootstrap_nodes	number of bootstrap nodes	int
normal_nodes	number of normal ndoes	int
code_path	$ROOT	string
max_peer	number of peers each node is connected	int
committee_ratio	One committee member every x node (avg)	int
validator_ratio	One validator every x node (avg)	int
term_len	number of blocks each committee is reponsible for	int
reg_per_blk	max number of registration request in each block	int
validate_threshold	the threshold of validate reply to determine 'no network partition'	float (0.0-1.0)
committee_timeout	the timeout time for a force committee change without new blocks	int (s)
registration_timeout	the timeout time for resending a registration reqeust	int (s)
validate_timeout	the timeout time for resending validation request	int (ms)
election_timeout	the timeout time for re-invoking a leader election	int (ms)
backoff_time	wait some time before broadcasting a mined block (debug only, set to 0 otherwise)	int (ms)