Add option to choose GnuPG userinfo during OEM reset

initrd/bin/oem-factory-reset

@@ -20,6 +20,10 @@ ADMIN_PIN_DEF=12345678
 TPM_PASS_DEF=12345678
 CUSTOM_PASS=""
 
+GPG_USER_NAME="OEM Key"
+GPG_KEY_NAME=`date +%Y%m%d%H%M%S`
+GPG_USER_MAIL="oem-${GPG_KEY_NAME}@example.com"
+GPG_USER_COMMENT="OEM-generated key"
 ## External files sourced
 
 . /etc/functions
@@ -54,7 +58,6 @@ whiptail_error_die()
 
 gpg_key_reset()
 {
-    GPG_KEY_NAME=`date +%Y%m%d%H%M%S`
     # Factory reset GPG card
     {
         echo admin
@@ -76,9 +79,9 @@ gpg_key_reset()
         echo ${USER_PIN_DEF}
         echo 0
         echo y
-        echo "OEM Key"
-        echo "oem-${GPG_KEY_NAME}@example.com"
-        echo "OEM-generated key"
+        echo ${GPG_USER_NAME} 
+        echo ${GPG_USER_MAIL}
+        echo ${GPG_USER_COMMENT}
     } | gpg --command-fd=0 --status-fd=2 --pinentry-mode=loopback --card-edit \
         > /tmp/gpg_card_edit_output 2>/dev/null 
     if [ $? -ne 0 ]; then
@@ -261,6 +264,24 @@ It must be at least 8 characters in length.\n"
   TPM_PASS_DEF=$CUSTOM_PASS
 fi
 
+# Prompt to change default GnuPG key information
+echo -e -n "Would you like to set custom user information for the GnuPG key? [y/N]: "
+read -n 1 prompt_output
+echo
+if [ "$prompt_output" == "y" \
+  -o "$prompt_output" == "Y" ] \
+; then
+  echo -e "\nPlease enter the following information...\n"
+  echo
+  echo -e -n "Real name: "
+  read GPG_USER_NAME
+  echo -e -n "Email address: "
+  read GPG_USER_MAIL
+  echo -e -n "Comment: "
+  read GPG_USER_COMMENT
+  echo
+fi
+
 ## sanity check the USB, GPG key, and boot device before proceeding further
 
 # mount USB, then remount rw