java.security.spec.InvalidKeySpecException：java.security.InvalidKeyException：IOException：检测过早的EOF

Question

我有这段代码：

// Turn the encoded key into a real RSA public key.
// Public keys are encoded in X.509.
X509EncodedKeySpec keySpec = new X509EncodedKeySpec(keyBytes);
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
PublicKey publicKey = keyFactory.generatePublic(keySpec);

错误：

  

java.security.spec.InvalidKeySpecException：   java.security.InvalidKeyException：IOException：检测过早的EOF

问题出在哪里？

Answer 1

public static PublicKey getPublicKey(String key) throws Exception {
      byte[] keyBytes;  
      keyBytes = (new BASE64Decoder()).decodeBuffer(key); 
      X509EncodedKeySpec keySpec = new X509EncodedKeySpec(keyBytes); 
      KeyFactory keyFactory = KeyFactory.getInstance("RSA");
      PublicKey publicKey = keyFactory.generatePublic(keySpec); 
      return publicKey;
  }

这就是我转向＆＃34; String key＆＃34;进入真正的rsa密钥（PublicKey publicKey）。 也许有帮助。