diff options
Diffstat (limited to 'cmd/sigsum-debug/key/public')
-rw-r--r-- | cmd/sigsum-debug/key/public/public.go | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/cmd/sigsum-debug/key/public/public.go b/cmd/sigsum-debug/key/public/public.go new file mode 100644 index 0000000..b03d0b9 --- /dev/null +++ b/cmd/sigsum-debug/key/public/public.go @@ -0,0 +1,32 @@ +package public + +import ( + "crypto/ed25519" + "fmt" + "strings" + + "git.sigsum.org/sigsum-go/internal/fmtio" + "git.sigsum.org/sigsum-go/pkg/hex" +) + +func Main(args []string) error { + if len(args) != 0 { + return fmt.Errorf("trailing arguments: %s", strings.Join(args, ", ")) + } + s, err := fmtio.StringFromStdin() + if err != nil { + return fmt.Errorf("read stdin: %w", err) + } + + priv, err := fmtio.SignerFromHex(s) + if err != nil { + return fmt.Errorf("parse key: %w", err) + } + pub, ok := priv.Public().(ed25519.PublicKey) + if !ok { + return fmt.Errorf("not an ed25519 key") + } + + fmt.Printf("%s\n", hex.Serialize(pub[:])) + return nil +} |