The KeyStore for backups should be encrypted with user passwords to enhance security

[wjfree]

Now backuped KeyStore is stored in plain text, which is very unsafe for the normal user.

[lyricat]

Hi, we use plain text because people want encrypt it in their way.

for example, you can encrypt the keystore file by GPG:

gpg -r GPG_USER_ID --encrypt KEYSTORE_FILE