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)) }