private String getSHA256Token(String serviceId, String usercode, String username, String email, String phone,
String returnUrl, Long time, String apiKey) throws Exception {
StringBuilder sb = new StringBuilder();
// Order by follow number:
sb.append(serviceId); // 1
sb.append("&");
sb.append(usercode); // 2
sb.append("&");
if (StringUtils.isNotBlank(username)) {
sb.append(username); // 3
sb.append("&");
}
if (StringUtils.isNotBlank(email)) {
sb.append(email); // 4
sb.append("&");
}
if (StringUtils.isNotBlank(phone)) {
sb.append(phone); // 5
sb.append("&");
}
if (StringUtils.isNotBlank(memberno)) {
sb.append(memberno); // 6
sb.append("&");
}
if (StringUtils.isNotBlank(returnUrl)) {
sb.append(returnUrl); // 7
sb.append("&");
}
sb.append(time); // 8
SecretKeySpec signingKey = new SecretKeySpec(apiKey.getBytes("UTF-8"), "HmacSHA256");
Mac mac = Mac.getInstance(signingKey.getAlgorithm());
mac.init(signingKey);
byte[] rawHmac = mac.doFinal(sb.toString().getBytes("UTF-8"));
return new String(Base64.encodeBase64(rawHmac));
}
// Sample
// Use this same input, the output is : Ah9M58CQ9RFTShjFuqziQr+0MjmJxN6+bzWxMD71moo=
public static void main(String[] args) throws Exception {
String s = getSHA256Token("hangame", "testusercode", "testUsername", "test@email.com", "123456789",
null, 1660095873001L, "7cf2828608274a49a3f06152b2188927");
System.out.println(s); // Output: Ah9M58CQ9RFTShjFuqziQr+0MjmJxN6+bzWxMD71moo=
}
