func main() {
var err error
var group = new(bbssig.Group)
var sk = new(bbssig.PrivateKey)
var part = new(bbssig.MemberKey)
var rev *bbssig.Revocation
var revbyte []byte
var partfile *os.File
partfile, err = os.Open(os.Args[1])
if err != nil {
log.Fatal(err)
}
var privfile *os.File
privfile, err = os.Open(os.Args[2])
if err != nil {
log.Fatal(err)
}
var partreader = bufio.NewReader(partfile)
var privreader = bufio.NewReader(privfile)
/* Now we have a detail, namely need to skip some stuff from
the part file before we can use it. But first load the
private key*/
{
var gb = basepack.Unpack(privreader)
var success bool
_, success = group.Unmarshal(gb)
if !success {
log.Fatal("Could not load key")
}
var sb = basepack.Unpack(privreader)
_, success = sk.Unmarshal(group, sb)
if !success {
log.Fatal("Could not load private key")
}
}
{
var success bool
basepack.Unpack(partreader) /*Skip first entry*/
var memb = basepack.Unpack(partreader)
_, success = part.Unmarshal(group, memb)
if !success {
log.Fatal("Part could not be upacked")
}
}
rev = sk.GenerateRevocation(part)
revbyte = rev.Marshal()
fmt.Printf("The revokation string is %s\n",
base64.StdEncoding.EncodeToString(revbyte))
}
func TestRevocation(t *testing.T) {
t.Parallel()
message := []byte{1, 2, 3}
var revocation *bbssig.Revocation
runScript(t, script{
numPlayers: 2,
numPlayersWithAccounts: 1,
actions: []action{
{
player: 0,
buildRequest: func(s *scriptState) *pond.Request {
memberKey, err := s.groupPrivateKeys[0].NewMember(rand.Reader)
if err != nil {
t.Errorf("Failed to create group member key: %s", err)
}
revocation = s.groupPrivateKeys[0].GenerateRevocation(memberKey)
return &pond.Request{
Revocation: &pond.SignedRevocation{
Revocation: &pond.SignedRevocation_Revocation{
Generation: proto.Uint32(0x1234),
Revocation: revocation.Marshal(),
},
Signature: []byte{7, 8, 9},
},
}
},
validate: func(t *testing.T, reply *pond.Reply) {
if reply.Status != nil {
t.Errorf("Bad reply to revocation: %s", reply)
}
},
},
{
player: 1,
buildRequest: func(s *scriptState) *pond.Request {
return s.buildDelivery(0, message, 0x1234)
},
validate: func(t *testing.T, reply *pond.Reply) {
if reply.Status == nil || *reply.Status != pond.Reply_GENERATION_REVOKED {
t.Errorf("Bad status to delivery request: %#v", reply)
}
if reply.Revocation == nil {
t.Errorf("Missing revocation information: %#v", reply)
}
},
},
{
player: 1,
buildRequest: func(s *scriptState) *pond.Request {
s.groupPrivateKeys[0].Update(revocation)
return s.buildDelivery(0, message, 0x1235)
},
validate: func(t *testing.T, reply *pond.Reply) {
if reply.Status != nil {
t.Errorf("Bad reply to revocation: %s", reply)
}
},
},
},
})
}