what-the-bank/sources/o/IYa.java

package o;

import com.google.common.primitives.UnsignedBytes;
import java.security.GeneralSecurityException;
import java.util.Arrays;
import javax.crypto.AEADBadTagException;
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import o.uAf;

/* loaded from: classes2.dex */
public final class IYa implements InterfaceC4280bVg {
    private final int b;
    private final byte[] d;
    private final byte[] h;
    private final SecretKeySpec j;
    private static uAf.RVV c = uAf.RVV.ALGORITHM_NOT_FIPS;
    private static final ThreadLocal<Cipher> e = new ThreadLocal<Cipher>() { // from class: o.IYa.4
        @Override // java.lang.ThreadLocal
        protected final /* synthetic */ Cipher initialValue() {
            return e();
        }

        private static Cipher e() {
            try {
                return YYT.a.e("AES/ECB/NOPADDING");
            } catch (GeneralSecurityException e2) {
                throw new IllegalStateException(e2);
            }
        }
    };
    private static final ThreadLocal<Cipher> a = new ThreadLocal<Cipher>() { // from class: o.IYa.1
        @Override // java.lang.ThreadLocal
        protected final /* synthetic */ Cipher initialValue() {
            return b();
        }

        private static Cipher b() {
            try {
                return YYT.a.e("AES/CTR/NOPADDING");
            } catch (GeneralSecurityException e2) {
                throw new IllegalStateException(e2);
            }
        }
    };

    public IYa(byte[] bArr, int i) throws GeneralSecurityException {
        if (!c.d()) {
            throw new GeneralSecurityException("Can not use AES-EAX in FIPS-mode.");
        }
        if (i != 12 && i != 16) {
            throw new IllegalArgumentException("IV size should be either 12 or 16 bytes");
        }
        this.b = i;
        ifG.e(bArr.length);
        SecretKeySpec secretKeySpec = new SecretKeySpec(bArr, "AES");
        this.j = secretKeySpec;
        Cipher cipher = e.get();
        cipher.init(1, secretKeySpec);
        byte[] e2 = e(cipher.doFinal(new byte[16]));
        this.d = e2;
        this.h = e(e2);
    }

    private static byte[] e(byte[] bArr, byte[] bArr2) {
        int length = bArr.length;
        byte[] bArr3 = new byte[length];
        for (int i = 0; i < length; i++) {
            bArr3[i] = (byte) (bArr[i] ^ bArr2[i]);
        }
        return bArr3;
    }

    private static byte[] e(byte[] bArr) {
        byte[] bArr2 = new byte[16];
        int i = 0;
        while (i < 15) {
            int i2 = i + 1;
            bArr2[i] = (byte) ((bArr[i] << 1) ^ ((bArr[i2] & UnsignedBytes.MAX_VALUE) >>> 7));
            i = i2;
        }
        bArr2[15] = (byte) (((bArr[0] >> 7) & 135) ^ (bArr[15] << 1));
        return bArr2;
    }

    private byte[] d(Cipher cipher, int i, byte[] bArr, int i2, int i3) throws IllegalBlockSizeException, BadPaddingException {
        byte[] bArr2;
        byte[] bArr3 = new byte[16];
        bArr3[15] = (byte) i;
        if (i3 == 0) {
            return cipher.doFinal(e(bArr3, this.d));
        }
        byte[] doFinal = cipher.doFinal(bArr3);
        int i4 = 0;
        while (i3 - i4 > 16) {
            for (int i5 = 0; i5 < 16; i5++) {
                doFinal[i5] = (byte) (doFinal[i5] ^ bArr[(i2 + i4) + i5]);
            }
            doFinal = cipher.doFinal(doFinal);
            i4 += 16;
        }
        byte[] copyOfRange = Arrays.copyOfRange(bArr, i4 + i2, i2 + i3);
        if (copyOfRange.length == 16) {
            bArr2 = e(copyOfRange, this.d);
        } else {
            byte[] copyOf = Arrays.copyOf(this.h, 16);
            for (int i6 = 0; i6 < copyOfRange.length; i6++) {
                copyOf[i6] = (byte) (copyOf[i6] ^ copyOfRange[i6]);
            }
            copyOf[copyOfRange.length] = (byte) (copyOf[copyOfRange.length] ^ 128);
            bArr2 = copyOf;
        }
        return cipher.doFinal(e(doFinal, bArr2));
    }

    @Override // o.InterfaceC4280bVg
    public final byte[] b(byte[] bArr, byte[] bArr2) throws GeneralSecurityException {
        int length = bArr.length;
        int i = this.b;
        if (length > 2147483631 - i) {
            throw new GeneralSecurityException("plaintext too long");
        }
        byte[] bArr3 = new byte[bArr.length + i + 16];
        byte[] b = YTf.b(i);
        System.arraycopy(b, 0, bArr3, 0, this.b);
        Cipher cipher = e.get();
        cipher.init(1, this.j);
        byte[] d = d(cipher, 0, b, 0, b.length);
        byte[] bArr4 = bArr2 == null ? new byte[0] : bArr2;
        byte[] d2 = d(cipher, 1, bArr4, 0, bArr4.length);
        Cipher cipher2 = a.get();
        cipher2.init(1, this.j, new IvParameterSpec(d));
        cipher2.doFinal(bArr, 0, bArr.length, bArr3, this.b);
        byte[] d3 = d(cipher, 2, bArr3, this.b, bArr.length);
        int length2 = bArr.length;
        int i2 = this.b;
        for (int i3 = 0; i3 < 16; i3++) {
            bArr3[length2 + i2 + i3] = (byte) ((d2[i3] ^ d[i3]) ^ d3[i3]);
        }
        return bArr3;
    }

    @Override // o.InterfaceC4280bVg
    public final byte[] d(byte[] bArr, byte[] bArr2) throws GeneralSecurityException {
        int length = (bArr.length - this.b) - 16;
        if (length < 0) {
            throw new GeneralSecurityException("ciphertext too short");
        }
        Cipher cipher = e.get();
        cipher.init(1, this.j);
        byte[] d = d(cipher, 0, bArr, 0, this.b);
        if (bArr2 == null) {
            bArr2 = new byte[0];
        }
        byte[] bArr3 = bArr2;
        byte[] d2 = d(cipher, 1, bArr3, 0, bArr3.length);
        byte[] d3 = d(cipher, 2, bArr, this.b, length);
        int length2 = bArr.length;
        byte b = 0;
        for (int i = 0; i < 16; i++) {
            b = (byte) (b | (((bArr[(length2 - 16) + i] ^ d2[i]) ^ d[i]) ^ d3[i]));
        }
        if (b != 0) {
            throw new AEADBadTagException("tag mismatch");
        }
        Cipher cipher2 = a.get();
        cipher2.init(1, this.j, new IvParameterSpec(d));
        return cipher2.doFinal(bArr, this.b, length);
    }
}