how to store and load keys using java.security.KeyStore class

Question

after creating secret key how do i store them using Keystore class methods and how do i load the keys.

Answer 1

Storing:

KeyStore ks = KeyStore.getInstance("JKS");
ks.setKeyEntry("keyAlias", key, passwordForKeyCharArray, certChain);
OutputStream writeStream = new FileOutputStream(filePathToStore);
ks.store(writeStream, keystorePasswordCharArray);
writeStream.close();

Note thet certChain might be null, unless you are passing PrivateKey

Loading:

KeyStore ks = KeyStore.getInstance("JKS");
InputStream readStream = new FileInputStream(filePathToStore);
ks.load(readStream, keystorePasswordCharArray);
Key key = ks.getKey("keyAlias", passwordForKeyCharArray);
readStream.close();

Read the javadocs