From 2ad1e255d7909376bec16dc874e51be5b2629273 Mon Sep 17 00:00:00 2001 From: Rasmus Dahlberg Date: Tue, 3 Nov 2020 16:45:51 +0100 Subject: added client-side consistency proof verification --- client/get-consistency-proof/main.go | 62 ++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 client/get-consistency-proof/main.go (limited to 'client/get-consistency-proof') diff --git a/client/get-consistency-proof/main.go b/client/get-consistency-proof/main.go new file mode 100644 index 0000000..49c45f1 --- /dev/null +++ b/client/get-consistency-proof/main.go @@ -0,0 +1,62 @@ +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", "../../server/descriptor/stfe.json", "path to json-encoded list of log operators") + logId = flag.String("log_id", "B9oCJk4XIOMXba8dBM5yUj+NLtqTE6xHwbvR9dYkHPM=", "base64-encoded log identifier") + chain = flag.String("chain", "../../server/testdata/chain/ee.pem", "path to pem-encoded certificate chain that the log accepts") + 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, *chain, "", *operators, &http.Client{}, true) + if err != nil { + glog.Fatal(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, cli.Log.Key()); 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, cli.Log.Key()); 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() +} -- cgit v1.2.3