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authormakefu <github@syntax-fehler.de>2017-09-18 13:59:56 +0200
committermakefu <github@syntax-fehler.de>2017-09-18 13:59:56 +0200
commit3afff20e1645afaac02817b719d55e344370a979 (patch)
tree6ab499cf825f9778e1630ae3fab40bfd866bec8d
init of gentoken
-rw-r--r--GenToken.java54
1 files changed, 54 insertions, 0 deletions
diff --git a/GenToken.java b/GenToken.java
new file mode 100644
index 0000000..bca41e6
--- /dev/null
+++ b/GenToken.java
@@ -0,0 +1,54 @@
+import java.util.Calendar;
+import java.util.Date;
+
+import java.nio.charset.Charset;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.TimeZone;
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+
+public class GenToken
+{
+ public static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8");
+ public static final String HMAC_SHA256 = "HmacSHA256";
+ public static final String UTF_8 = "UTF-8";
+
+ public static String bytesToHex(byte[] paramArrayOfByte)
+ {
+ StringBuilder localStringBuilder = new StringBuilder();
+ int j = paramArrayOfByte.length;
+ int i = 0;
+ while (i < j)
+ {
+ localStringBuilder.append(String.format("%02x", new Object[] { Byte.valueOf(paramArrayOfByte[i]) }).toUpperCase());
+ i += 1;
+ }
+ return localStringBuilder.toString();
+ }
+ public static void main(String[] args) {
+ System.out.print(getToken( ) );
+ }
+ public static String getToken()
+ {
+ Object localObject = new SimpleDateFormat("yyyyMMddHH");
+ ((DateFormat)localObject).setTimeZone(TimeZone.getTimeZone("UTC"));
+ String text = ((DateFormat)localObject).format(Calendar.getInstance().getTime());
+ System.out.println(text);
+ try{
+ localObject = Mac.getInstance("HmacSHA256");
+ ((Mac)localObject).init(new SecretKeySpec("ZhQCqoZp".getBytes(DEFAULT_CHARSET), "HmacSHA256"));
+ String text2 = bytesToHex(((Mac)localObject).doFinal(text.getBytes(DEFAULT_CHARSET)));
+ return text2;
+ }catch (InvalidKeyException error)
+ {
+ throw new Error("Invalid key error");
+ }
+ catch (NoSuchAlgorithmException error)
+ {
+ throw new Error("Cannot initialize token");
+ }
+ }
+}