public static String rsaEncryptOAEP(String message, X509Certificate certificate)
throws IllegalBlockSizeException, IOException {
Cipher cipher = Cipher.getInstance("RSA/ECB/OAEPWithSHA-1AndMGF1Padding");
cipher.init(Cipher.ENCRYPT_MODE, certificate.getPublicKey());
byte[] data = message.getBytes("utf-8");
byte[] cipherdata = cipher.doFinal(data);
return Base64.getEncoder().encodeToString(cipherdata);
} catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
throw new RuntimeException("当前Java环境不支持RSA v1.5/OAEP", e);
} catch (InvalidKeyException e) {
throw new IllegalArgumentException("无效的证书", e);
} catch (IllegalBlockSizeException | BadPaddingException e) {
throw new IllegalBlockSizeException("加密原串的长度不能超过214字节");