func loadHost(hostname string, m map[string]*sign.Node, testSuite abstract.Suite, testRand cipher.Stream, hc *HostConfig) *sign.Node {
if h, ok := m[hostname]; ok {
return h
}
host := coconet.NewGoHost(hostname, coconet.NewGoDirectory())
h := sign.NewNode(host, testSuite, testRand)
hc.Hosts[hostname] = h
m[hostname] = h
return h
}
// NewHostConfig creates a new host configuration that can be populated with
// hosts.
func NewHostConfig() *HostConfig {
return &HostConfig{SNodes: make([]*sign.Node, 0), Hosts: make(map[string]*sign.Node), Dir: coconet.NewGoDirectory()}
}
func runStaticTest(signType sign.Type, RoundsPerView int, faultyNodes ...int) error {
// Crypto setup
suite := nist.NewAES128SHA256P256()
rand := suite.Cipher([]byte("example"))
// number of nodes for the test
nNodes := 4
// create new directory for communication between peers
dir := coconet.NewGoDirectory()
// Create Hosts and Peers
h := make([]coconet.Host, nNodes)
for i := 0; i < nNodes; i++ {
hostName := "host" + strconv.Itoa(i)
if len(faultyNodes) > 0 {
h[i] = &coconet.FaultyHost{}
gohost := coconet.NewGoHost(hostName, dir)
h[i] = coconet.NewFaultyHost(gohost)
} else {
h[i] = coconet.NewGoHost(hostName, dir)
}
}
for _, fh := range faultyNodes {
h[fh].(*coconet.FaultyHost).SetDeadFor("response", true)
}
// Create Signing Nodes out of the hosts
nodes := make([]*sign.Node, nNodes)
for i := 0; i < nNodes; i++ {
nodes[i] = sign.NewNode(h[i], suite, rand)
nodes[i].Type = signType
nodes[i].GenSetPool()
nodes[i].RoundsPerView = RoundsPerView
defer nodes[i].Close()
h[i].SetPubKey(nodes[i].PubKey)
// To test the already keyed signing node, uncomment
// PrivKey := suite.Secret().Pick(rand)
// nodes[i] = NewKeyedNode(h[i], suite, PrivKey)
}
nodes[0].Height = 2
nodes[1].Height = 1
nodes[2].Height = 0
nodes[3].Height = 0
// Add edges to parents
h[1].AddParent(DefaultView, h[0].Name())
h[2].AddParent(DefaultView, h[1].Name())
h[3].AddParent(DefaultView, h[1].Name())
// Add edges to children, listen to children
h[0].AddChildren(DefaultView, h[1].Name())
h[1].AddChildren(DefaultView, h[2].Name(), h[3].Name())
for _, host := range h {
host.Listen()
host.Connect(0)
}
for i := 0; i < nNodes; i++ {
if len(faultyNodes) > 0 {
nodes[i].FailureRate = 1
}
go func(i int) {
// start listening for messages from within the tree
nodes[i].Listen()
}(i)
}
// Have root node initiate the signing protocol
// via a simple annoucement
nodes[0].LogTest = []byte("Hello World")
// return nodes[0].Announce(DefaultView, &sign.AnnouncementMessage{LogTest: nodes[0].LogTest, Round: 1})
return nodes[0].StartAnnouncement(&sign.AnnouncementMessage{LogTest: nodes[0].LogTest, Round: 1})
}