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| public class TuRingRequestEncrypted {
private String secret = Secret.secret;
private String apiKey = Secret.apiKey;
private String timestamp;
private String data;
private String md5Key;
private String paramStr;
public TuRingRequestEncrypted(TuRingRequest tuRingRequest) {
this.paramStr = JSON.toJSONString(tuRingRequest);
this.timestamp = "" + System.currentTimeMillis();
this.md5Key = processKey(secret, timestamp, apiKey);
this.data = AES_Encrypted(this.paramStr, md5Key);
}
private String AES_Encrypted(String paramStr, String md5Key) {
Cipher cipher = null;
try {
MessageDigest messageDigest = MessageDigest.getInstance("MD5");
messageDigest.update(md5Key.getBytes(StandardCharsets.UTF_8));
byte[] tmp = messageDigest.digest();
Key key = new SecretKeySpec(tmp, "AES");
cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, key, new IvParameterSpec(new byte[]{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}));
byte[] encryptedData = cipher.doFinal(paramStr.getBytes(StandardCharsets.UTF_8));
return Base64.getEncoder().encodeToString(encryptedData);
} catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException | InvalidAlgorithmParameterException | IllegalBlockSizeException | BadPaddingException e) {
e.printStackTrace();
}
return null;
}
private String processKey(String secret, String timestamp, String apiKey) {
try {
MessageDigest messageDigest = MessageDigest.getInstance("MD5");
return byte2HexStr(messageDigest.digest((secret + timestamp + apiKey).getBytes(StandardCharsets.UTF_8)));
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
return null;
}
private String byte2HexStr(byte[] digest) {
String str = "0123456789abcdef";
StringBuilder stringBuilder = new StringBuilder(2 * digest.length);
for (int i = 0; i < digest.length; i++) {
byte high = (byte) ((byte) 0x0f & (digest[i] >> 4));
stringBuilder.append(str.charAt(high));
byte low = (byte) (digest[i] & 0x0f);
stringBuilder.append(str.charAt(low));
}
return stringBuilder.toString();
}
public String getTimestamp() {
return timestamp;
}
public String getData() {
return data;
}
public String getKey() {
return apiKey;
}
}
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