How to cast String to Key in java

Question

I want to cast an string to key type.

BufferedReader br = new BufferedReader(new FileReader(publicKeyFile));
String publicKey = br.readLine();//(Key) keyIn.readObject();
br.close();

Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.WRAP_MODE, publicKey);

cipher.init(Cipher.WRAP_MODE, publicKey); needs publickey of a type with the interface Key .

So how do I cast string to key?

Answer 1

使用KeyFactory基于KeySpec创建所需的密钥。