package main import ( "context" "flag" "fmt" "net/http" "github.com/golang/glog" "github.com/system-transparency/stfe" "github.com/system-transparency/stfe/client" ) var ( operators = flag.String("operators", "../../descriptor/stfe.json", "path to json-encoded list of log operators") logId = flag.String("log_id", "B9oCJk4XIOMXba8dBM5yUj+NLtqTE6xHwbvR9dYkHPM=", "base64-encoded log identifier") first = flag.String("first", "AAEgB9oCJk4XIOMXba8dBM5yUj+NLtqTE6xHwbvR9dYkHPMAAAF1jnn7fwAAAAAAAAAxICCqLJn4QWYd0aRIRjDWGf4GWalDIb/iH60jSSX89WgvAAAAQF9XPFRdM56KaelHFFg1RqjTw1yFL085zHhdNkLeZh9BCXxVTByqrHEMngAkY69EX45aJMWh9NymmPau0qoigA8=", "first base64-encoded StItem of type StFormatSignedTreeHeadV1") second = flag.String("second", "AAEgB9oCJk4XIOMXba8dBM5yUj+NLtqTE6xHwbvR9dYkHPMAAAF1jsZrygAAAAAAAABFIL7Zz0WEolql7o7G496Izl7Qy/l2Qd/Pwc87W8jFPoL6AAAAQHc7ttIDUKuMJR7uqCLb3qqAxiwEN5KLt/7IblT7f+QaKq4BqqI3cO6vT3eMSZMHZDd4EkgvkAwo1o7IsA4N8Qc=", "second base64-encoded StItem of type StFormatSignedTreeHeadV1") ) func main() { flag.Parse() cli, err := client.NewClientFromPath(*logId, "", "", *operators, &http.Client{}, true) if err != nil { glog.Fatal(err) } k, err := cli.Log.Key() if err != nil { glog.Fatalf("bad public key: %v", err) } var sth1 stfe.StItem if err := sth1.UnmarshalB64(*first); err != nil { glog.Fatalf("bad signed tree head: %v", err) } if err := client.VerifySignedTreeHeadV1(&sth1, cli.Log.Scheme, k); err != nil { glog.Fatalf("bad signed tree head: %v", err) } glog.V(3).Info("verified first sth") var sth2 stfe.StItem if err := sth2.UnmarshalB64(*second); err != nil { glog.Fatalf("bad signed tree head: %v", err) } if err := client.VerifySignedTreeHeadV1(&sth2, cli.Log.Scheme, k); err != nil { glog.Fatalf("bad signed tree head: %v", err) } glog.V(3).Info("verified second sth") proof, err := cli.GetConsistencyProof(context.Background(), &sth1, &sth2) if err != nil { glog.Fatalf("get-proof-by-hash failed: %v", err) } glog.V(3).Info("verified inclusion proof") str, err := proof.MarshalB64() if err != nil { glog.Fatalf("failed encoding valid inclusion proof: %v", err) } fmt.Println(str) glog.Flush() }