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))
}
