package com.newvideo.util.video;

import java.util.Random;

public class PPTVKey {
	public static int a(byte abyte0[], int i) {
		int j = 0;
		int k = 0;
		for (; j < i; j++)
			k ^= abyte0[j] << 8 * (j % 4);

		return k;
	}

	public static int a(byte abyte0[], int i, byte abyte1[], int j) {
		if (j < 1 + i * 2)
			return 0;
		for (int k = 0; k < i; k++) {
			abyte1[k * 2] = (byte) (0xf & abyte0[k]);
			abyte1[1 + k * 2] = (byte) (0xf & abyte0[k] >> 4);
		}

		int l = 0;
		while (l < i * 2) {
			byte byte0 = abyte1[l];
			byte byte1;
			if (abyte1[l] > 9)
				byte1 = 87;
			else
				byte1 = 48;
			abyte1[l] = (byte) (byte0 + byte1);
			l++;
		}
		abyte1[i * 2] = 0;
		return 1;
	}

	public static String getKey(long l) {
		byte abyte0[] = new byte[16];
		byte abyte1[] = new byte[16];
		byte abyte2[] = new byte[33];
		int i = 0;
		while (i < 16) {
			byte byte0;
			if (i < "qqqqqww".length())
				byte0 = (byte) "qqqqqww".charAt(i);
			else
				byte0 = 0;
			abyte1[i] = byte0;
			i++;
		}
		a((int) (l / 1000L - 100L), abyte0, 16);
		Random random = new Random();
		for (int j = 0; j < 16; j++)
			if (abyte0[j] == 0)
				abyte0[j] = (byte) random.nextInt(256);

		b(abyte0, 16, abyte1, 16);
		a(abyte0, 16, abyte2, 33);
		return new String(abyte2, 0, 32);
	}

	public static void a(int i, byte abyte0[], int j) {
		int k = 0;
		while (k < j && k < 8) {
			abyte0[k] = (byte) (0xf & i >> 28 - 4 * (k % 8));
			byte byte0 = abyte0[k];
			byte byte1;
			if (abyte0[k] > 9)
				byte1 = 87;
			else
				byte1 = 48;
			abyte0[k] = (byte) (byte0 + byte1);
			k++;
		}
	}

	public static long b(long l) {
		return 0xffffffffL & l;
	}

	public static void b(byte abyte0[], int i, byte abyte1[], int j) {
		long l = a(abyte1, j);
		long l1 = l << 8 | l >> 24;
		long l2 = l << 16 | l >> 16;
		long l3 = l << 24 | l >> 8;
		for (int k = 0; k + 16 <= i; k += 16) {
			long l4 = 0L;
			long l5 = 0L;
			long l6 = 0L;
			for (int i1 = 0; i1 < 4; i1++) {
				l4 |= (long) (0xff & abyte0[k + i1]) << i1 * 8;
				l5 |= (long) (0xff & abyte0[4 + (k + i1)]) << i1 * 8;
			}

			for (int j1 = 0; j1 < 32; j1++) {
				l6 = b(l6 - 0x61c88647L);
				l4 = b(l4
						+ (b(b(l + b(l5 << 4)) ^ b(l5 + l6)) ^ b(l1
								+ b(l5 >> 5))));
				l5 = b(l5
						+ (b(b(l2 + b(l4 << 4)) ^ b(l4 + l6)) ^ b(l3
								+ b(l4 >> 5))));
			}

			for (int k1 = 0; k1 < 4; k1++) {
				abyte0[k + k1] = (byte) (int) (255L & l4 >> k1 * 8);
				abyte0[4 + (k + k1)] = (byte) (int) (255L & l5 >> k1 * 8);
			}

		}

	}
}