package cn.jiguang.ao; import android.util.Base64; import cn.jiguang.an.b; import javax.crypto.Cipher; import javax.crypto.spec.IvParameterSpec; import javax.crypto.spec.SecretKeySpec; public class i { private static <T> T a(Class<T> cls, Object[] objArr, Class<?>[] clsArr) { return cls.getConstructor(clsArr).newInstance(objArr); } public static String a(String str) { try { return new String(a(str, "DFA84B10B7ACDD25", "DFA84B10B7ACDD25")); } catch (Throwable unused) { b.e("", "Unexpected - failed to AES decrypt."); return ""; } } public static String a(byte[] bArr, String str, String str2) { return Base64.encodeToString(a(bArr, str, str2, true), 2); } private static IvParameterSpec a(byte[] bArr) { try { return (IvParameterSpec) a(IvParameterSpec.class, new Object[]{bArr}, new Class[]{byte[].class}); } catch (Throwable th) { th.printStackTrace(); return null; } } private static byte[] a(String str, String str2) { byte[] bArr = new byte[str.length()]; byte[] bytes = str.substring(0, str.length() / 2).getBytes(str2); byte[] bytes2 = str.substring(str.length() / 2).getBytes(str2); System.arraycopy(bytes, 0, bArr, 0, bytes.length); System.arraycopy(bytes2, 0, bArr, bytes.length, bytes2.length); return bArr; } public static byte[] a(String str, String str2, String str3) { return a(Base64.decode(str, 2), str2, str3, false); } public static synchronized byte[] a(byte[] bArr, String str, String str2, boolean z) { synchronized (i.class) { if (str == null) { return null; } SecretKeySpec secretKeySpec = new SecretKeySpec(a(str, "UTF-8"), "AES"); IvParameterSpec a = a(str2.getBytes("UTF-8")); Cipher instance = Cipher.getInstance("AES/CBC/PKCS5Padding"); instance.init(z ? 1 : 2, secretKeySpec, a); return instance.doFinal(bArr); } } }