package fa;

import com.google.android.gms.internal.ads.cz1;

/* JADX INFO: loaded from: classes2.dex */
public final class l extends cz1 {
    @Override // com.google.android.gms.internal.ads.cz1
    public final int[] b(int i10, int[] iArr) {
        if (iArr.length != 3) {
            throw new IllegalArgumentException(String.format("ChaCha20 uses 96-bit nonces, but got a %d-bit nonce", Integer.valueOf(iArr.length * 32)));
        }
        int[] iArr2 = new int[16];
        int[] iArr3 = this.f10117a;
        int[] iArr4 = j.f26016a;
        System.arraycopy(iArr4, 0, iArr2, 0, iArr4.length);
        System.arraycopy(iArr3, 0, iArr2, iArr4.length, 8);
        iArr2[12] = i10;
        System.arraycopy(iArr, 0, iArr2, 13, iArr.length);
        return iArr2;
    }

    @Override // com.google.android.gms.internal.ads.cz1
    public final int d() {
        return 12;
    }
}