ସହଭାଗୀ ପାଠ୍ୟ

[{"role": "user", "content": "\u0644\u062f\u064a\u0627 \u062a\u0637\u0628\u064a\u0642 \u0627\u0646\u0634\u0626\u062a\u0647 \u0628\u062a\u0642\u0646\u064a\u0629 jetpack compose \u0627\u0631\u063a\u0628\u0627\u0646\u0634\u0627\u0621 \u0646\u0633\u062e\u0629 \u062e\u0627\u0635 \u0628\u064a \u0648 \u0646\u0633\u062e\u0629 \u062e\u0627\u0635\u0629 \u0628\u0646\u0634\u0631 \u0648 \u062a\u0648\u0632\u064a\u0639 \u0648 \u0639\u0646\u062f \u062a\u0648\u0632\u0639\u0647 \u0639\u0644\u0649 \u062a\u0644\u0627\u0645\u0628\u0630\u064a \u0627\u0631\u063a\u0628 \u0627\u0646 \u0627\u0636\u064a\u0641 \u0645\u064a\u0632\u062a\u0627\u0646 \u0627\u0644\u0627\u0648\u0644\u0649 \u0645\u062f\u0629 \u062a\u062c\u0631\u0628\u064a\u0629 \u0644\u0645\u0627 \u062a\u0646\u062a\u0647\u064a \u064a\u0638\u0647\u0631 \u0643\u0648\u062f \u0645\u062a\u0639\u0644\u0642 \u0628 id \u0627\u0644\u0647\u0627\u062a\u0641 \u0648 \u062a\u0648\u0642\u0641 \u0639\u0644\u0649 \u0627\u0644\u0639\u0645\u0644 \u0648 \u064a\u0637\u0644\u0628 \u0645\u0646 \u0627\u0644\u0645\u0633\u062a\u0639\u0645\u0644 \u0627\u062a\u0635\u0644 \u0628\u0627\u0644\u0645\u0633\u0648\u0624\u0644 \u0639\u0646\u062f\u0645\u0627 \u064a\u062a\u0635\u0644 \u0628\u064a \u0627\u0637\u0644\u0628 \u0645\u0646\u0647 \u0643\u0648\u062f \u0627\u0644\u0638\u0647\u0627\u0631 \u0647\u0630\u0627 \u0627\u0644\u0643\u0648\u062f \u0627\u062f\u062e\u0644\u0647 \u0641\u064a \u0646\u0633\u062e\u062a\u064a \u062a\u0648\u0644\u062f \u0643\u0648\u062f \u0627\u0644\u062a\u0641\u0639\u064a\u0644 \u0627\u0631\u0633\u0644\u0639 \u0644\u0632\u0645\u064a\u0644\u064a \u0641\u062a\u0641\u0639\u0644 \u0644\u0645\u062f\u0629 \u0645\u062b\u0644\u0627 \u0647\u0644 \u0645\u0646\u0643\u0646 \u062a\u0633\u0627\u0639\u062f\u0646\u064a \u0648 \u0643\u064a\u0641 \u0633\u0646\u0629 \u0648 \u0627\u062a\u062d\u0643\u0645 \u0641\u064a\u0647\u0627"}, {"role": "assistant", "content": "\u0628\u0627\u0644\u062a\u0623\u0643\u064a\u062f\u060c \u064a\u0645\u0643\u0646\u0646\u064a \u0645\u0633\u0627\u0639\u062f\u062a\u0643 \u0641\u064a \u062a\u0646\u0641\u064a\u0630 \u0647\u0630\u0647 \u0627\u0644\u0641\u0643\u0631\u0629. \u0647\u0630\u0627 \u0627\u0644\u0646\u0638\u0627\u0645 \u064a\u064f\u0639\u0631\u0641 \u0628\u0627\u0633\u0645 \"Licensing System\" \u0623\u0648 \u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0631\u062e\u064a\u0635\u060c \u0648\u0647\u0648 \u0634\u0627\u0626\u0639 \u062c\u062f\u0627\u064b \u0641\u064a \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0645\u062f\u0641\u0648\u0639\u0629 \u0623\u0648 \u0630\u0627\u062a \u0627\u0644\u0646\u0633\u062e \u0627\u0644\u062a\u062c\u0631\u064a\u0628\u064a\u0629.\n\n\u0625\u0644\u064a\u0643 \u0627\u0644\u062e\u0637\u0629 \u0627\u0644\u0643\u0627\u0645\u0644\u0629 \u062e\u0637\u0648\u0629 \u0628\u062e\u0637\u0648\u0629\u060c \u0645\u0639 \u0627\u0644\u062a\u0631\u0643\u064a\u0632 \u0639\u0644\u0649 \u0643\u064a\u0641\u064a\u0629 \u0627\u0644\u062a\u0639\u0627\u0645\u0644 \u0645\u0639 `IMEI` (\u0623\u0648 `AndroidId`) \u0648\u0643\u064a\u0641\u064a\u0629 \u062a\u0648\u0644\u064a\u062f \u0627\u0644\u0623\u0643\u0648\u0627\u062f:\n\n### \u0627\u0644\u062e\u0637\u0648\u0629 1: \u0627\u0644\u062d\u0635\u0648\u0644 \u0639\u0644\u0649 \u0645\u0639\u0631\u0641 \u0627\u0644\u0647\u0627\u062a\u0641 (Device ID)\n\n\u0641\u064a \u0623\u0646\u062f\u0631\u0648\u064a\u062f \u0627\u0644\u062d\u062f\u064a\u062b\u060c \u0645\u0646 \u0627\u0644\u0635\u0639\u0628 \u0627\u0644\u062d\u0635\u0648\u0644 \u0639\u0644\u0649 IMEI \u0627\u0644\u062d\u0642\u064a\u0642\u064a \u062f\u0648\u0646 \u0623\u0630\u0648\u0646\u0627\u062a \u062e\u0627\u0635\u0629 \u0648\u0642\u062f \u062a\u0643\u0648\u0646 \u063a\u064a\u0631 \u0645\u062a\u0627\u062d\u0629 \u0639\u0644\u0649 \u0627\u0644\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u062f\u064a\u062b\u0629. \u0627\u0644\u062d\u0644 \u0627\u0644\u0623\u0641\u0636\u0644 \u0648\u0627\u0644\u0623\u0643\u062b\u0631 \u0623\u0645\u0627\u0646\u0627\u064b \u0647\u0648 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 `Settings.Secure.ANDROID_ID`.\n\n\u0623\u0636\u0641 \u0647\u0630\u0647 \u0627\u0644\u062f\u0627\u0644\u0629 \u0641\u064a \u062a\u0637\u0628\u064a\u0642\u0643 \u0644\u062c\u0644\u0628 \u0627\u0644\u0645\u0639\u0631\u0641:\n\n```kotlin\nimport android.content.Context\nimport android.provider.Settings\n\nfun getDeviceId(context: Context): String {\n return Settings.Secure.getString(context.contentResolver, Settings.Secure.ANDROID_ID)\n}\n```\n\n**\u0645\u0644\u0627\u062d\u0638\u0629:** \u0647\u0630\u0627 \u0627\u0644\u0640 ID \u062b\u0627\u0628\u062a \u0644\u0643\u0644 \u0647\u0627\u062a\u0641 \u0648\u0644\u0627 \u064a\u062a\u063a\u064a\u0631 \u062d\u062a\u0649 \u0628\u0639\u062f \u0625\u0639\u0627\u062f\u0629 \u0636\u0628\u0637 \u0627\u0644\u0645\u0635\u0646\u0639 (\u0641\u064a \u0645\u0639\u0638\u0645 \u0627\u0644\u062d\u0627\u0644\u0627\u062a)\u060c \u0645\u0645\u0627 \u064a\u062c\u0639\u0644\u0647 \u0645\u0646\u0627\u0633\u0628\u0627\u064b \u0644\u0644\u062a\u0631\u062e\u064a\u0635.\n\n---\n\n### \u0627\u0644\u062e\u0637\u0648\u0629 2: \u0645\u0646\u0637\u0642 \u0645\u062f\u0629 \u0627\u0644\u062a\u062c\u0631\u0628\u0629 (Trial Period)\n\n\u0639\u0646\u062f \u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u0644\u0623\u0648\u0644 \u0645\u0631\u0629\u060c \u0642\u0645 \u0628\u062d\u0641\u0638 \u062a\u0627\u0631\u064a\u062e \u0627\u0644\u062a\u062b\u0628\u064a\u062a \u0641\u064a `SharedPreferences` \u0623\u0648 `DataStore`.\n\n```kotlin\n// \u0643\u0648\u062f Kotlin \u0645\u0628\u0633\u0637 \u0644\u0644\u0645\u0646\u0641\u0630\nval prefs = context.getSharedPreferences(\"trial_prefs\", Context.MODE_PRIVATE)\nval installDate = prefs.getLong(\"install_date\", 0)\n\nif (installDate == 0L) {\n // \u0623\u0648\u0644 \u0645\u0631\u0629 \u064a\u062a\u0645 \u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u062a\u0637\u0628\u064a\u0642\n prefs.edit().putLong(\"install_date\", System.currentTimeMillis()).apply()\n // \u0639\u0631\u0636 \u0648\u0627\u062c\u0647\u0629 \u0627\u0644\u062a\u062c\u0631\u0628\u0629\n} else {\n val daysElapsed = (System.currentTimeMillis() - installDate) / (1000 * 60 * 60 * 24)\n if (daysElapsed > 7) { // \u0645\u062b\u0644\u0627\u064b 7 \u0623\u064a\u0627\u0645 \u062a\u062c\u0631\u0628\u0629\n showLockedScreen(getDeviceId(context))\n } else {\n startApp()\n }\n}\n```\n\n---\n\n### \u0627\u0644\u062e\u0637\u0648\u0629 3: \u062a\u0635\u0645\u064a\u0645 \u0633\u064a\u0631 \u0627\u0644\u0639\u0645\u0644 (Workflow)\n\n1. **\u0627\u0644\u0637\u0631\u0641 \u0627\u0644\u0639\u0645\u064a\u0644 (\u0627\u0644\u0647\u0627\u062a\u0641):**\n * \u062a\u0646\u062a\u0647\u064a \u0641\u062a\u0631\u0629 \u0627\u0644\u062a\u062c\u0631\u0628\u0629.\n * \u064a\u0638\u0647\u0631 \u0644\u0643 \u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u0634\u0627\u0634\u0629 \u0645\u063a\u0644\u0642\u0629 \u062a\u062d\u062a\u0648\u064a \u0639\u0644\u0649: \"\u0627\u0646\u062a\u0647\u062a \u0627\u0644\u0641\u062a\u0631\u0629 \u0627\u0644\u062a\u062c\u0631\u064a\u0628\u064a\u0629\".\n * \u064a\u0639\u0631\u0636 \u0644\u0644\u0645\u0633\u062a\u062e\u062f\u0645 \u0631\u0633\u0627\u0644\u0629: \"\u0627\u062a\u0635\u0644 \u0628\u0627\u0644\u0645\u0633\u0624\u0648\u0644 \u0648\u0642\u0645 \u0628\u062a\u0632\u0648\u064a\u062f\u0647 \u0628\u0643\u0648\u062f \u062c\u0647\u0627\u0632\u0643: [ABC-123]\".\n * \u064a\u0648\u062c\u062f \u062d\u0642\u0644 \u0625\u062f\u062e\u0627\u0644 \u0644\u0644\u0643\u0648\u062f\u060c \u0644\u0643\u0646 \u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u0644\u0627 \u064a\u0642\u0628\u0644 \u0623\u064a \u0643\u0648\u062f \u0625\u0644\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646 \u0635\u062d\u064a\u062d\u0627\u064b \u0648\u0645\u0648\u0644\u062f\u0627\u064b \u0645\u0646 \u0639\u0646\u062f\u0643.\n\n2. **\u0627\u0644\u0637\u0631\u0641 \u0627\u0644\u062e\u0644\u0641\u064a (Backend) - \u0647\u0630\u0627 \u0647\u0648 \u0627\u0644\u062c\u0632\u0621 \u0627\u0644\u0623\u0647\u0645:**\n * \u0623\u0646\u062a \u0628\u062d\u0627\u062c\u0629 \u0625\u0644\u0649 \u0645\u0648\u0642\u0639 \u0648\u064a\u0628 \u0628\u0633\u064a\u0637 \u0623\u0648 \u0644\u0648\u062d\u0629 \u062a\u062d\u0643\u0645 (Admin Panel) \u062a\u0646\u0634\u0626 \u0641\u064a\u0647\u0627 \u0627\u0644\u0643\u0648\u062f.\n * \u0639\u0646\u062f\u0645\u0627 \u064a\u062a\u0635\u0644 \u0628\u0643 \u0627\u0644\u0639\u0645\u064a\u0644\u060c \u062a\u0639\u0637\u064a\u0647\u0645 \u0631\u0642\u0645 \u0627\u0644\u062c\u0647\u0627\u0632 (ANDOID_ID).\n * \u062a\u062f\u062e\u0644 \u0623\u0646\u062a \u0625\u0644\u0649 \u0644\u0648\u062d\u0629 \u0627\u0644\u062a\u062d\u0643\u0645 \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0643\u060c \u062a\u0636\u0639 \u0631\u0642\u0645 \u0627\u0644\u062c\u0647\u0627\u0632\u060c \u0648\u062a\u0636\u063a\u0637 \"Generate Code\".\n * \u0627\u0644\u0646\u0638\u0627\u0645 \u064a\u0639\u0637\u064a\u0643 \u0643\u0648\u062f\u0627\u064b \u0645\u0634\u0641\u0631\u0627\u064b (\u0645\u062b\u0644\u0627\u064b: `LIC-88X99`).\n * \u062a\u0639\u0637\u064a \u0647\u0630\u0627 \u0627\u0644\u0643\u0648\u062f \u0644\u0644\u0639\u0645\u064a\u0644.\n\n3. **\u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u0644\u0643\u0648\u062f:**\n * \u064a\u062f\u062e\u0644 \u0627\u0644\u0639\u0645\u064a\u0644 \u0627\u0644\u0643\u0648\u062f `LIC-88X99` \u0641\u064a \u0627\u0644\u062a\u0637\u0628\u064a\u0642.\n * \u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u064a\u0631\u0633\u0644 \u0647\u0630\u0627 \u0627\u0644\u0643\u0648\u062f + \u0631\u0642\u0645 \u062c\u0647\u0627\u0632\u0647 \u0625\u0644\u0649 \u062e\u0627\u062f\u0645\u0643 \u0644\u0644\u062a\u062d\u0642\u0642 (Validation).\n * \u0627\u0644\u062e\u0627\u062f\u0645 \u064a\u062a\u062d\u0642\u0642: \u0647\u0644 \u0647\u0630\u0627 \u0627\u0644\u0643\u0648\u062f \u0635\u0627\u0644\u062d\u061f \u0647\u0644 \u064a\u062e\u0635 \u0647\u0630\u0627 \u0627\u0644\u062c\u0647\u0627\u0632\u061f\n * \u0625\u0630\u0627 \u0646\u0639\u0645: \u064a\u0631\u062f \u0627\u0644\u062e\u0627\u062f\u0645 \u0628\u0640 `true`. \u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u064a\u062d\u0641\u0638 \u062d\u0627\u0644\u0629 \"Active\" \u0641\u064a `SharedPreferences` \u0648\u064a\u0641\u062a\u062d \u0627\u0644\u062a\u0637\u0628\u064a\u0642.\n\n---\n\n### \u0627\u0644\u062e\u0637\u0648\u0629 4: \u0643\u064a\u0641 \u062a\u0646\u0634\u0626 \u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0648\u0644\u064a\u062f\u061f (\u0627\u0644\u062e\u064a\u0627\u0631 \u0627\u0644\u0623\u0633\u0647\u0644 \u0644\u0643)\n\n\u0628\u0645\u0627 \u0623\u0646\u0643 \u062a\u0631\u064a\u062f \u062a\u062d\u0643\u0645\u0627\u064b \u0643\u0627\u0645\u0644\u0627\u064b \u0648\u0633\u0647\u0648\u0644\u0629\u060c \u0623\u0646\u0635\u062d\u0643 \u0628\u0639\u062f\u0645 \u062a\u062e\u0632\u064a\u0646 \u0627\u0644\u0623\u0643\u0648\u0627\u062f \u0641\u064a \u0642\u0627\u0639\u062f\u0629 \u0628\u064a\u0627\u0646\u0627\u062a \u0645\u0639\u0642\u062f\u0629 \u0641\u064a \u0627\u0644\u0628\u062f\u0627\u064a\u0629. \u064a\u0645\u0643\u0646\u0643 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062a\u0642\u0646\u064a\u0629 **HMAC** \u0623\u0648 **Base64 Encoded** \u0628\u0633\u064a\u0637\u0629 \u0645\u0634\u0641\u0631\u0629 \u0628\u0645\u0641\u062a\u0627\u062d \u0633\u0631\u064a (Secret Key) \u0644\u062f\u064a\u0643 \u0641\u0642\u0637.\n\n#### \u0637\u0631\u064a\u0642\u0629 \"\u0627\u0644\u0643\u0648\u062f \u0627\u0644\u0630\u0643\u064a\" (\u0628\u062f\u0648\u0646 \u062e\u0627\u062f\u0645 \u0645\u0639\u0642\u062f \u0641\u064a \u0627\u0644\u0628\u062f\u0627\u064a\u0629):\n\n\u064a\u0645\u0643\u0646\u0643 \u0625\u0646\u0634\u0627\u0621 \u0643\u0648\u062f \u064a\u062d\u062a\u0648\u064a \u0639\u0644\u0649 \u0645\u0639\u0644\u0648\u0645\u0627\u062a \u0645\u0634\u0641\u0631\u0629 \u0628\u062f\u0627\u062e\u0644\u0647\u060c \u0628\u062d\u064a\u062b \u064a\u0645\u0643\u0646 \u0644\u0644\u062a\u0637\u0628\u064a\u0642 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646\u0647 \u062f\u0648\u0646 \u0627\u0644\u0627\u062a\u0635\u0627\u0644 \u0628\u0627\u0644\u0625\u0646\u062a\u0631\u0646\u062a \u062f\u0627\u0626\u0645\u0627\u064b (\u0623\u0648 \u0644\u0644\u0627\u062a\u0635\u0627\u0644 \u0644\u0644\u062a\u0623\u0643\u062f \u0627\u0644\u0646\u0647\u0627\u0626\u064a).\n\n**\u0647\u064a\u0643\u0644 \u0627\u0644\u0643\u0648\u062f \u0627\u0644\u0645\u0642\u062a\u0631\u062d:**\n`[\u0631\u0642\u0645 \u0627\u0644\u062c\u0647\u0627\u0632][\u062a\u0627\u0631\u064a\u062e \u0627\u0644\u0627\u0646\u062a\u0647\u0627\u0621][\u062a\u0648\u0642\u064a\u0639 \u0631\u0642\u0645\u064a (Signature)]`\n\n\u0646\u0642\u0648\u0645 \u0628\u062a\u0634\u0641\u064a\u0631 \u0647\u0630\u0627 \u0627\u0644\u0646\u0635 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u0641\u062a\u0627\u062d \u0633\u0631\u064a (`SecretKey`) \u0644\u062f\u064a\u0643 \u0623\u0646\u062a \u0641\u0642\u0637 \u0641\u064a \u0627\u0644\u0643\u0648\u062f \u0627\u0644\u0645\u0635\u062f\u0631\u064a \u0644\u0644\u062a\u0637\u0628\u064a\u0642.\n\n**\u0645\u062b\u0627\u0644 \u0644\u0644\u0645\u0646\u0637\u0642 (\u0641\u064a \u0627\u0644\u062e\u0627\u062f\u0645/\u0644\u0648\u062d\u0629 \u0627\u0644\u062a\u062d\u0643\u0645 \u0627\u0644\u062a\u064a \u062a\u0628\u0631\u0645\u062c\u0647\u0627):**\n\n```python\n# \u0645\u062b\u0627\u0644 \u0628\u0644\u063a\u0629 Python \u0644\u0625\u0646\u0634\u0627\u0621 \u0627\u0644\u0643\u0648\u062f (\u062a\u0639\u0645\u0644 \u0641\u064a \u0644\u0648\u062d\u0629 \u0627\u0644\u062a\u062d\u0643\u0645 \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0643)\nimport hmac\nimport hashlib\nimport base64\n\nSECRET_KEY = \"MY_SUPER_SECRET_KEY_123\" # \u0647\u0630\u0627 \u0627\u0644\u0645\u0641\u062a\u0627\u062d \u064a\u062c\u0628 \u0623\u0646 \u064a\u0643\u0648\u0646 \u0645\u0648\u062c\u0648\u062f\u0627\u064b \u0623\u064a\u0636\u0627\u064b \u0641\u064a \u062a\u0637\u0628\u064a\u0642\u0643\n\ndef generate_license(device_id, expiry_days=30):\n import time\n expiry_time = int(time.time()) + (expiry_days * 24 * 60 * 60)\n \n # \u0646\u0635 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a\n data = f\"{device_id}:{expiry_time}\"\n \n # \u0625\u0646\u0634\u0627\u0621 \u062a\u0648\u0642\u064a\u0639 \u0631\u0642\u0645\u064a \u0644\u0636\u0645\u0627\u0646 \u0639\u062f\u0645 \u062a\u0632\u0648\u064a\u0631 \u0627\u0644\u0643\u0648\u062f\n signature = hmac.new(SECRET_KEY.encode(), data.encode(), hashlib.sha256).hexdigest()\n \n # \u062a\u062c\u0645\u064a\u0639 \u0627\u0644\u0643\u0648\u062f \u0627\u0644\u0646\u0647\u0627\u0626\u064a\n final_code = f\"{data}:{signature}\"\n \n # \u062a\u0634\u0641\u064a\u0631\u0647 \u0628\u0635\u064a\u063a\u0629 Base64 \u0644\u064a\u0643\u0648\u0646 \u0633\u0647\u0644\u0627\u064b \u0644\u0644\u0646\u0633\u062e\n return base64.b64encode(final_code.encode()).decode()\n\n# \u0645\u062b\u0627\u0644 \u0644\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645:\n# code = generate_license(\"A1B2C3D4E5F6G7H8\")\n# print(code) \n```\n\n**\u0643\u064a\u0641 \u064a\u062a\u062d\u0642\u0642 \u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u0645\u0646 \u0647\u0630\u0627 \u0627\u0644\u0643\u0648\u062f (\u0641\u064a Jetpack Compose/Kotlin):**\n\n```kotlin\n// \u062f\u0627\u0644\u0629 \u0644\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0635\u062d\u0629 \u0627\u0644\u0643\u0648\u062f\nfun validateLicense(enteredCode: String, deviceId: String): Boolean {\n try {\n val decoded = Base64.decode(enteredCode, Base64.DEFAULT)\n val content = String(decoded)\n \n val parts = content.split(\":\")\n if (parts.size != 3) return false\n \n val storedDeviceId = parts[0]\n val expiryTime = parts[1].toLong()\n val receivedSignature = parts[2]\n \n // 1. \u062a\u062d\u0642\u0642 \u0645\u0646 \u0623\u0646 \u0627\u0644\u0643\u0648\u062f \u064a\u062e\u0635 \u0647\u0630\u0627 \u0627\u0644\u062c\u0647\u0627\u0632\n if (storedDeviceId != deviceId) return false\n \n // 2. \u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u0644\u062a\u0627\u0631\u064a\u062e (\u0644\u0645 \u064a\u0646\u062a\u0647\u0650)\n if (System.currentTimeMillis() > expiryTime) return false\n \n // 3. \u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u0644\u062a\u0648\u0642\u064a\u0639 \u0627\u0644\u0631\u0642\u0645\u064a (\u0644\u0636\u0645\u0627\u0646 \u0623\u0646 \u0627\u0644\u0643\u0648\u062f \u0644\u0645 \u064a\u062a\u0645 \u062a\u0639\u062f\u064a\u0644\u0647)\n val secretKey = \"MY_SUPER_SECRET_KEY_123\" // \u0646\u0641\u0633 \u0627\u0644\u0645\u0641\u062a\u0627\u062d\n val dataToSign = \"$storedDeviceId:$expiryTime\"\n val calculatedSignature = hmacSha256(dataToSign, secretKey)\n \n return calculatedSignature == receivedSignature\n \n } catch (e: Exception) {\n return false\n }\n}\n```\n\n---\n\n### \u0627\u0644\u062e\u0637\u0648\u0629 5: \u0627\u0644\u062a\u0646\u0641\u064a\u0630 \u0627\u0644\u0639\u0645\u0644\u064a \u0641\u064a \u0645\u0634\u0631\u0648\u0639\u0643\n\n1. **\u0623\u0646\u0634\u0626 \u0635\u0641\u062d\u0629 Admin \u0628\u0633\u064a\u0637\u0629:**\n \u064a\u0645\u0643\u0646\u0643 \u0639\u0645\u0644 \u0635\u0641\u062d\u0629 HTML \u0628\u0633\u064a\u0637\u0629 \u062a\u0633\u062a\u0636\u064a\u0641\u0647\u0627 \u0639\u0644\u0649 \u0627\u0633\u062a\u0636\u0627\u0641\u0629 \u0645\u062c\u0627\u0646\u064a\u0629 (\u0645\u062b\u0644 Firebase Hosting \u0623\u0648 Netlify) \u0623\u0648 \u062d\u062a\u0649 \u062a\u0639\u0645\u0644 \u0645\u062d\u0644\u064a\u0627\u064b \u0639\u0644\u0649 \u062c\u0647\u0627\u0632\u0643 \u0623\u062b\u0646\u0627\u0621 \u0627\u0644\u062a\u0637\u0648\u064a\u0631.\n * \u0647\u0630\u0647 \u0627\u0644\u0635\u0641\u062d\u0629 \u062a\u062d\u062a\u0648\u064a \u0639\u0644\u0649 \u062d\u0642\u0644 \"\u0623\u062f\u062e\u0644 Android ID\".\n * \u0632\u0631 \"\u062a\u0648\u0644\u064a\u062f \u0643\u0648\u062f\".\n * \u062a\u0633\u062a\u062e\u062f\u0645 \u0646\u0641\u0633 \u062e\u0648\u0627\u0631\u0632\u0645\u064a\u0629 `Python` \u0623\u0648 `Java` \u0623\u0639\u0644\u0627\u0647 \u0644\u062a\u0648\u0644\u064a\u062f \u0627\u0644\u0643\u0648\u062f.\n\n2. **\u062f\u0645\u062c \u0627\u0644\u0643\u0648\u062f \u0641\u064a Jetpack Compose:**\n * \u0623\u0646\u0634\u0626 \u0646\u0627\u0641\u0630\u0629 \u0645\u0646\u0628\u062b\u0642\u0629 (Dialog) \u062a\u0638\u0647\u0631 \u0639\u0646\u062f\u0645\u0627 \u062a\u0646\u062a\u0647\u064a \u0627\u0644\u0645\u062f\u0629.\n * \u0627\u0639\u0631\u0636 \u0627\u0644\u0640 Device ID.\n * \u0623\u0636\u0641 `TextField` \u0644\u0625\u062f\u062e\u0627\u0644 \u0627\u0644\u0643\u0648\u062f.\n * \u0639\u0646\u062f \u0627\u0644\u0636\u063a\u0637 \u0639\u0644\u0649 \"\u062a\u0641\u0639\u064a\u0644\"\u060c \u0627\u0633\u062a\u062f\u0639\u0627\u0621 \u062f\u0627\u0644\u0629 `validateLicense`.\n * \u0625\u0630\u0627 \u0646\u062c\u062d\u062a\u060c \u0627\u062d\u0641\u0638 `isLicensed = true` \u0641\u064a `SharedPreferences`.\n\n3. **\u0627\u0644\u0623\u0645\u0627\u0646:**\n * \u0644\u0627 \u062a\u062c\u0639\u0644 \u0645\u0641\u062a\u0627\u062d \u0627\u0644\u062a\u0634\u0641\u064a\u0631 (`SecretKey`) \u0648\u0627\u0636\u062d\u0627\u064b \u062c\u062f\u0627\u064b \u0641\u064a \u0627\u0644\u0643\u0648\u062f. \u064a\u0645\u0643\u0646\u0643 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 `ProGuard/R8` \u0641\u064a Gradle \u0644\u0637\u0645\u063a\u064a\u0629 \u0627\u0644\u0643\u0648\u062f.\n * \u064a\u0641\u0636\u0644 \u062c\u062f\u0627\u064b \u062c\u0639\u0644 \u0627\u0644\u062a\u062d\u0642\u0642 \u064a\u062a\u0645 \u0639\u0628\u0631 **API** \u062e\u0627\u0635 \u0628\u0643 (\u062e\u0627\u062f\u0645 \u0648\u064a\u0628 \u0628\u0633\u064a\u0637 \u0628\u0644\u063a\u0629 Node.js \u0623\u0648 Python \u0623\u0648 Firebase Functions).\n * \u064a\u0631\u0633\u0644 \u0627\u0644\u062a\u0637\u0628\u064a\u0642: `POST /verify` \u0645\u0639 `{ device_id, license_code }`.\n * \u064a\u0639\u0648\u062f \u0627\u0644\u062e\u0627\u062f\u0645 \u0628\u0640 `success: true/false`.\n * \u0647\u0630\u0647 \u0627\u0644\u0637\u0631\u064a\u0642\u0629 \u0623\u0643\u062b\u0631 \u0623\u0645\u0627\u0646\u0627\u064b \u0644\u0623\u0646 \u0627\u0644\u0645\u062e\u062a\u0631\u0642 \u0644\u0646 \u064a\u0633\u062a\u0637\u064a\u0639 \u062a\u0639\u062f\u064a\u0644 \u0627\u0644\u0643\u0648\u062f \u0628\u0633\u0647\u0648\u0644\u0629 \u0625\u0630\u0627 \u0643\u0627\u0646 \u0627\u0644\u062e\u0627\u062f\u0645 \u0647\u0648 \u0627\u0644\u0630\u064a \u064a\u0635\u062f\u0631 \u0627\u0644\u062a\u0648\u0642\u064a\u0639\u0627\u062a.\n\n### \u0645\u0644\u062e\u0635 \u0645\u0627 \u0639\u0644\u064a\u0643 \u0641\u0639\u0644\u0647 \u0627\u0644\u0622\u0646:\n\n1. \u0627\u0643\u062a\u0628 \u062f\u0627\u0644\u0629 \u0644\u062c\u0644\u0628 `ANDROID_ID`.\n2. \u0627\u0643\u062a\u0628 \u0645\u0646\u0637\u0642 \u062d\u0633\u0627\u0628 \u0627\u0644\u0623\u064a\u0627\u0645 \u0648\u062d\u0641\u0638 \u062a\u0627\u0631\u064a\u062e \u0627\u0644\u0628\u062f\u0621.\n3. \u0635\u0645\u0645 \u0648\u0627\u062c\u0647\u0629 UI \u062a\u0639\u0631\u0636 \u0627\u0644\u0643\u0648\u062f \u0648\u062a\u0637\u0644\u0628 \u0625\u062f\u062e\u0627\u0644 \u0643\u0648\u062f \u0627\u0644\u062a\u0641\u0639\u064a\u0644.\n4. \u0623\u0646\u0634\u0626 \"\u0644\u0648\u062d\u0629 \u062a\u062d\u0643\u0645\" \u0628\u0633\u064a\u0637\u0629 (\u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0643\u0648\u0646 \u0645\u062c\u0631\u062f \u0633\u0643\u0631\u064a\u0628\u062a Python \u064a\u0639\u0645\u0644 \u0639\u0644\u0649 \u062c\u0647\u0627\u0632\u0643 \u062d\u0627\u0644\u064a\u0627\u064b) \u0644\u062a\u0648\u0644\u064a\u062f \u0627\u0644\u0623\u0643\u0648\u0627\u062f \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u0627\u0644\u0640 ID.\n5. \u0628\u0631\u0645\u062c\u0629 \u0645\u0646\u0637\u0642 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0635\u062d\u0629 \u0627\u0644\u0643\u0648\u062f (\u0633\u0648\u0627\u0621 \u0645\u062d\u0644\u064a\u0627\u064b \u0628\u0627\u0644\u062a\u0634\u0641\u064a\u0631 \u0623\u0648 \u0639\u0628\u0631 API).\n\n\u0647\u0644 \u062a\u0631\u064a\u062f \u0645\u0646\u064a \u0643\u062a\u0627\u0628\u0629 \u0643\u0648\u062f \u0643\u0627\u0645\u0644 \u0644", "model": "Qwen/Qwen3-30B-A3B-Instruct"}]