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clientupdate/distsign: use distinct PEM types for root/signing keys (#9045)

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To make key management less error-prone, use different PEM block types
for root and signing keys. As a result, separate out most of the Go code
between root/signing keys too.

Updates #8760

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
This commit is contained in:
Andrew Lytvynov
2023-08-23 17:13:03 -06:00
committed by GitHub
parent 9c07f4f512
commit f61dd12f05
5 changed files with 243 additions and 79 deletions
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17
release/dist/cli/cli.go vendored
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@@ -88,6 +88,8 @@ func CLI(getTargets func(unixpkgs.Signers) ([]dist.Target, error)) *ffcli.Comman
ShortHelp: "Generate root or signing key pair",
FlagSet: (func() *flag.FlagSet {
fs := flag.NewFlagSet("gen-key", flag.ExitOnError)
fs.BoolVar(&genKeyArgs.root, "root", false, "generate a root key")
fs.BoolVar(&genKeyArgs.signing, "signing", false, "generate a signing key")
fs.StringVar(&genKeyArgs.privPath, "priv-path", "private-key.pem", "output path for the private key")
fs.StringVar(&genKeyArgs.pubPath, "pub-path", "public-key.pem", "output path for the public key")
return fs
@@ -190,12 +192,25 @@ func parseSigningKey(path string) (crypto.Signer, error) {
}
var genKeyArgs struct {
root bool
signing bool
privPath string
pubPath string
}
func runGenKey(ctx context.Context) error {
priv, pub, err := distsign.GenerateKey()
var pub, priv []byte
var err error
switch {
case genKeyArgs.root && genKeyArgs.signing:
return errors.New("only one of --root or --signing can be set")
case !genKeyArgs.root && !genKeyArgs.signing:
return errors.New("set either --root or --signing")
case genKeyArgs.root:
priv, pub, err = distsign.GenerateRootKey()
case genKeyArgs.signing:
priv, pub, err = distsign.GenerateSigningKey()
}
if err != nil {
return err
}