package com.mbridge.msdk.foundation.tools; import android.text.TextUtils; import android.util.Base64; import java.security.MessageDigest; import java.security.Provider; import java.security.Security; import javax.crypto.Cipher; import javax.crypto.spec.IvParameterSpec; import javax.crypto.spec.SecretKeySpec; /* loaded from: classes4.dex */ public final class a { private static byte[] b = new byte[32]; private static byte[] a = new byte[16]; static { String a2 = z.a("HkzwDFeD4QuyLdx5igfZYcu9xTM9NN=="); if (TextUtils.isEmpty(a2)) { return; } try { byte[] digest = MessageDigest.getInstance("sha-384").digest(a2.getBytes()); System.arraycopy(digest, 0, b, 0, 32); System.arraycopy(digest, 32, a, 0, 16); } catch (Exception e) { e.printStackTrace(); } } public static String a(String str) { return a(str, b, a); } private static String a(String str, byte[] bArr, byte[] bArr2) { try { IvParameterSpec ivParameterSpec = new IvParameterSpec(bArr2); SecretKeySpec secretKeySpec = new SecretKeySpec(bArr, "AES"); Security.addProvider(new C0202a()); Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7PADDING"); cipher.init(1, secretKeySpec, ivParameterSpec); return new String(Base64.encode(cipher.doFinal(str.getBytes()), 0)); } catch (Exception e) { e.printStackTrace(); return null; } } /* renamed from: com.mbridge.msdk.foundation.tools.a$a, reason: collision with other inner class name */ public static class C0202a extends Provider { public C0202a() { super("Crypto", 1.0d, "HARMONY (SHA1 digest; SecureRandom; SHA1withDSA signature)"); put("SecureRandom.SHA1PRNG", "org.apache.harmony.security.provider.crypto.SHA1PRNG_SecureRandomImpl"); put("SecureRandom.SHA1PRNG ImplementedIn", "Software"); } } }