add public key support

This adds all options to create and store a public key.

flags.go

@@ -51,7 +51,7 @@ type (
 
   // a container for the refined flags
   flagSet struct {
-    PrivateKey pkilib.PrivateKey
+    PrivateKey pki.PrivateKey
     Output     io.WriteCloser
 
     // private key specific stuff

main.go

@@ -50,10 +50,10 @@ func create_private_key() {
   err := fs.Parse(program_args())
   if err != nil { crash_with_help(1, fmt.Sprintf("%s", err)) }
 
-  var pk pkilib.Pemmer
+  var pk pki.Pemmer
   switch fs.Flags.PrivateKeyGenerationFlags.Type {
-    case "ecdsa": pk, err = pkilib.NewPrivateKeyEcdsa(fs.Flags.PrivateKeyGenerationFlags.Curve)
-    case "rsa":   pk, err = pkilib.NewPrivateKeyRsa(fs.Flags.PrivateKeyGenerationFlags.Size)
+    case "ecdsa": pk, err = pki.NewPrivateKeyEcdsa(fs.Flags.PrivateKeyGenerationFlags.Curve)
+    case "rsa":   pk, err = pki.NewPrivateKeyRsa(fs.Flags.PrivateKeyGenerationFlags.Size)
   }
   if err != nil { crash_with_help(2, fmt.Sprintf("%s", err)) }
   marsh_pem, err := pk.MarshalPem()
@@ -66,10 +66,16 @@ func create_private_key() {
 func create_public_key() {
   fs := NewFlags("create-public")
   fs.AddPrivateKey()
+  fs.AddOutput()
   err := fs.Parse(program_args())
   if err != nil { crash_with_help(1, fmt.Sprintf("%s", err)) }
 
-  fmt.Println(fs.Flags.PrivateKey.Public())
+  var pub_key pki.Pemmer
+  pub_key = fs.Flags.PrivateKey.Public()
+  marsh_pem, err := pub_key.MarshalPem()
+  if err != nil { crash_with_help(2, fmt.Sprintf("%s", err)) }
+  _, err = marsh_pem.WriteTo(fs.Flags.Output)
+  if err != nil { crash_with_help(2, fmt.Sprintf("%s", err)) }
 }
 
 // print the module help

private_key.go

@@ -16,16 +16,16 @@ var (
 
 // Read the private key from the path and try to figure out which type of key it
 // might be.
-func ReadPrivateKeyFile(path string) (pkilib.PrivateKey, error) {
+func ReadPrivateKeyFile(path string) (pki.PrivateKey, error) {
   raw_pk, err := readSectionFromFile(path, TypeLabelECDSA)
   if err == nil {
-    pk, err := pkilib.LoadPrivateKeyEcdsa(raw_pk)
+    pk, err := pki.LoadPrivateKeyEcdsa(raw_pk)
     if err != nil { return nil, err }
     return pk, nil
   }
   raw_pk, err = readSectionFromFile(path, TypeLabelRSA)
   if err == nil {
-    pk, err := pkilib.LoadPrivateKeyRsa(raw_pk)
+    pk, err := pki.LoadPrivateKeyRsa(raw_pk)
     if err != nil { return nil, err }
     return pk, nil
   }