package o;

import android.content.Context;
import android.content.SharedPreferences;
import android.util.Base64;
import java.security.Key;
import java.security.SecureRandom;
import java.security.spec.AlgorithmParameterSpec;
import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;

/* renamed from: o.cnV, reason: case insensitive filesystem */
/* loaded from: classes3.dex */
public class C7395cnV implements Xwp {
    private final SecureRandom a = new SecureRandom();
    private Key b;
    private final Cipher c;

    protected int e() {
        return 16;
    }

    public C7395cnV(Context context, zVr zvr) throws Exception {
        String d = d();
        SharedPreferences sharedPreferences = context.getSharedPreferences("FlutterSecureKeyStorage", 0);
        SharedPreferences.Editor edit = sharedPreferences.edit();
        String string = sharedPreferences.getString(d, null);
        this.c = a();
        if (string != null) {
            try {
                this.b = zvr.c(Base64.decode(string, 0), "AES");
                return;
            } catch (Exception unused) {
            }
        }
        byte[] bArr = new byte[16];
        this.a.nextBytes(bArr);
        SecretKeySpec secretKeySpec = new SecretKeySpec(bArr, "AES");
        this.b = secretKeySpec;
        edit.putString(d, Base64.encodeToString(zvr.a(secretKeySpec), 0));
        edit.apply();
    }

    protected Cipher a() throws Exception {
        return Cipher.getInstance("AES/CBC/PKCS7Padding");
    }

    @Override // o.Xwp
    public final byte[] c(byte[] bArr) throws Exception {
        int e = e();
        byte[] bArr2 = new byte[e];
        this.a.nextBytes(bArr2);
        this.c.init(1, this.b, d(bArr2));
        byte[] doFinal = this.c.doFinal(bArr);
        byte[] bArr3 = new byte[doFinal.length + e];
        System.arraycopy(bArr2, 0, bArr3, 0, e);
        System.arraycopy(doFinal, 0, bArr3, e, doFinal.length);
        return bArr3;
    }

    @Override // o.Xwp
    public final byte[] a(byte[] bArr) throws Exception {
        int e = e();
        byte[] bArr2 = new byte[e];
        System.arraycopy(bArr, 0, bArr2, 0, e);
        AlgorithmParameterSpec d = d(bArr2);
        int length = bArr.length - e();
        byte[] bArr3 = new byte[length];
        System.arraycopy(bArr, e, bArr3, 0, length);
        this.c.init(2, this.b, d);
        return this.c.doFinal(bArr3);
    }

    protected AlgorithmParameterSpec d(byte[] bArr) {
        return new IvParameterSpec(bArr);
    }

    protected String d() {
        return "VGhpcyBpcyB0aGUga2V5IGZvciBhIHNlY3VyZSBzdG9yYWdlIEFFUyBLZXkK";
    }
}