package com.baidu.license.util;

import com.ubtrobot.jimu.robotapi.PeripheralType;
import java.io.ByteArrayOutputStream;
import java.security.KeyFactory;
import java.security.spec.PKCS8EncodedKeySpec;
import javax.crypto.Cipher;

/* compiled from: RsaUtil.java */
/* loaded from: classes.dex */
public final class mas {
    public static String a(String str, String str2) {
        byte[] a = nx.a(str);
        byte[] a2 = nx.a(str2);
        KeyFactory keyFactory = KeyFactory.getInstance("RSA");
        Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
        cipher.init(2, keyFactory.generatePrivate(new PKCS8EncodedKeySpec(a2)));
        return new String(a(a, cipher));
    }

    private static byte[] a(byte[] bArr, Cipher cipher) {
        byte[] doFinal;
        try {
            int length = bArr.length;
            ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
            int i = 0;
            int i2 = 0;
            while (true) {
                int i3 = length - i;
                if (i3 > 0) {
                    if (i3 > 128) {
                        doFinal = cipher.doFinal(bArr, i, PeripheralType.SERVO);
                    } else {
                        doFinal = cipher.doFinal(bArr, i, i3);
                    }
                    byteArrayOutputStream.write(doFinal, 0, doFinal.length);
                    i2++;
                    i = i2 << 7;
                } else {
                    byte[] byteArray = byteArrayOutputStream.toByteArray();
                    byteArrayOutputStream.close();
                    return byteArray;
                }
            }
        } catch (Exception unused) {
            return null;
        }
    }
}