func TestVerify(t *testing.T) {
data := bytes.NewReader([]byte("this is a string to sign"))
err := signature.Verify(pubKey, exampleSig, data)
if err != nil {
t.Fatal(err)
}
data = bytes.NewReader([]byte("thus is a string to sign"))
err = signature.Verify(pubKey, exampleSig, data)
if err == nil {
t.Fatal("signature should not match")
}
}
func verifyUpgrade(tempName string, sig []byte) error {
if tempName == "" {
return fmt.Errorf("no upgrade found")
}
if sig == nil {
return fmt.Errorf("no signature found")
}
if debug {
l.Debugf("checking signature\n%s", sig)
}
fd, err := os.Open(tempName)
if err != nil {
return err
}
err = signature.Verify(SigningKey, sig, fd)
fd.Close()
if err != nil {
os.Remove(tempName)
return err
}
return nil
}
func verifyWithKey(signame, dataname string, pubkey []byte) {
sig, err := ioutil.ReadFile(signame)
if err != nil {
log.Fatal(err)
}
fd, err := os.Open(dataname)
if err != nil {
log.Fatal(err)
}
defer fd.Close()
err = signature.Verify(pubkey, sig, fd)
if err != nil {
log.Fatal(err)
}
log.Println("correct signature")
}
func verify(keyname, signame, dataname string) {
pubkey, err := ioutil.ReadFile(keyname)
if err != nil {
log.Fatal(err)
}
sig, err := ioutil.ReadFile(signame)
if err != nil {
log.Fatal(err)
}
fd, err := os.Open(dataname)
if err != nil {
log.Fatal(err)
}
defer fd.Close()
err = signature.Verify(pubkey, sig, fd)
if err != nil {
log.Fatal(err)
}
}
func verifyUpgrade(archiveName, tempName string, sig []byte) error {
if tempName == "" {
return fmt.Errorf("no upgrade found")
}
if sig == nil {
return fmt.Errorf("no signature found")
}
l.Debugf("checking signature\n%s", sig)
fd, err := os.Open(tempName)
if err != nil {
return err
}
// Create a new reader that will serve reads from, in order:
//
// - the archive name ("syncthing-linux-amd64-v0.13.0-beta.4.tar.gz")
// followed by a newline
//
// - the temp file contents
//
// We then verify the release signature against the contents of this
// multireader. This ensures that it is not only a bonafide syncthing
// binary, but it it also of exactly the platform and version we expect.
mr := io.MultiReader(bytes.NewBufferString(archiveName+"\n"), fd)
err = signature.Verify(SigningKey, sig, mr)
fd.Close()
if err != nil {
os.Remove(tempName)
return err
}
return nil
}