diff options
Diffstat (limited to 'cmd/sigsum-debug/pubkey.go')
-rw-r--r-- | cmd/sigsum-debug/pubkey.go | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/cmd/sigsum-debug/pubkey.go b/cmd/sigsum-debug/pubkey.go new file mode 100644 index 0000000..586d19a --- /dev/null +++ b/cmd/sigsum-debug/pubkey.go @@ -0,0 +1,27 @@ +package main + +import ( + "crypto/ed25519" + "fmt" + + "git.sigsum.org/sigsum-lib-go/pkg/hex" +) + +func CmdPubKey() error { + b, err := decodeHexFromStdin() + if err != nil { + return err + } + if len(b) != ed25519.PrivateKeySize { + return fmt.Errorf("invalid private key: size") + } + + priv := ed25519.PrivateKey(b) + pub, ok := priv.Public().(ed25519.PublicKey) + if !ok { + return fmt.Errorf("failed converting to public key") + } + + fmt.Printf("%s\n", hex.Serialize(pub[:])) + return nil +} |