xm0onh / avid-go

Asynchronous verifiable information dispersal with libp2p in golang

AVID With LT - RS erasure coding algorithm

Asynchronous verifiable information dispersal with libp2p in golang

Manual running - Bootstrap Nodes:

go run ./cmd/main.go -node=<BootstrapNode$id> -bootstrap=true -port=<PORT> -ip=<IP> -coding=<RS/LT>

Manual running - Dispersal Node:

go run ./cmd/main.go -node=Node1 -port=<PORT> -ip=<IP> -coding=<RS/LT>

Manual running - Retriever Node:

go run ./cmd/main.go -node=<Node$id> -port=<PORT> -ip=<IP> -coding=<RS/LT>

Automatic running (Prefered):

./StartNodes.sh

Stop all the nodes:

ps aux | grep go | grep -v grep | awk '{print $2}' | xargs kill -9

Config:

const (
	ExpectedChunks = 6
)

// Reed-Solomon parameters
const (
	DataShards   = 5
	ParityShards = 3
)

// Luby-Transform parameters
const (
	LTSourceBlocks      = 5
	LTEncodedBlockCount = 7
	RandomSeed          = 42
)

var (
	NodeID         string
	CodingMethod   string
	Nodes          = 10
	ReceivedChunks = sync.Map{}
	SentChunks     = sync.Map{}
	NodeMutex      = sync.Mutex{}
	ConnectedPeers []peer.AddrInfo
	Node1ID        peer.ID
	ReceivedFrom   = sync.Map{}
	Counter        = 0
	// Must be changed to the coding method
	// if LT then it should be LTEncodedBlockCount
	// if RS then it should be DataShards + ParityShards
	ChunksRecByNode = make([][]byte, DataShards+ParityShards)
	ReadyCounter    = 0
	StartTime       time.Time
	OriginalLength  = 29283680
)

avid-go's Issues

Dispersal node must be dynamic

Basically, right now the first node is the dispersal node. However, in the proper setup, other peers must detect the dispersal node form a handshake message.