diff options
author | Rasmus Dahlberg <rasmus@mullvad.net> | 2022-03-27 15:26:37 +0200 |
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committer | Rasmus Dahlberg <rasmus@mullvad.net> | 2022-04-13 15:11:08 +0200 |
commit | 30b9e5d5f5a29a3d83f9e16c9b606c903f750acc (patch) | |
tree | 6794d53eca7db8eb7938cb450ab99a7826e290f5 /cmd/sigsum-debug/pubkey.go | |
parent | d86d2433e0da077063bb21dc7c29d491c6fe862f (diff) |
add start on sigsum-debug utility
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 +} |