blob: f74992aa2086a47463f1286d5165f0142bc8ea79 (
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package main
import (
"crypto/ed25519"
"fmt"
"git.sigsum.org/sigsum-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
}
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