#include <QCoreApplication>
#include <QByteArray>
#include <QDebug>
#include <QString>
#include <QCryptographicHash>
#include "qaesencryption.h"

QString print(QByteArray in)
{
    QString ret="";
    for (int i=0; i < in.size();i++) {
        QString number = QString::number((quint8)in.at(i), 16);
        if (number.size()==1)
            number.insert(0, "0");
        ret.append(QString("%1").arg(number));
    }
    return ret;
}

bool testECB128Decrypt()
{
    QByteArray hexText, keyHex, outputHex;
    QAESEncryption encryption(QAESEncryption::AES_128, QAESEncryption::ECB);

    const quint8 key[16]    = {0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c};
    const quint8 text[16]   = {0x43, 0xb1, 0xcd, 0x7f, 0x59, 0x8e, 0xce, 0x23, 0x88, 0x1b, 0x00, 0xe3, 0xed, 0x03, 0x06, 0x88};
    const quint8 output[16] = {0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11, 0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef};

    for (int i=0; i<16; i++)
    {
        keyHex.append(key[i]);
        hexText.append(text[i]);
        outputHex.append(output[i]);
    }

    QByteArray decodedHex = encryption.decode(hexText, keyHex);

    return (outputHex == decodedHex);
}

bool testECB128Crypt()
{
    QByteArray hexText, keyHex, outputHex;
    QAESEncryption encryption(QAESEncryption::AES_128, QAESEncryption::ECB);

    const quint8 key[16]    = {0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c};

    const quint8 text[16]   = {0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a};
    const quint8 output[16] = {0x3a, 0xd7, 0x7b, 0xb4, 0x0d, 0x7a, 0x36, 0x60, 0xa8, 0x9e, 0xca, 0xf3, 0x24, 0x66, 0xef, 0x97};


    for (int i=0; i<16; i++)
    {
        keyHex.append(key[i]);
        hexText.append(text[i]);
        outputHex.append(output[i]);
    }

    QByteArray encodedHex = encryption.encode(hexText, keyHex);

    return (outputHex == encodedHex);
}

bool testCBC128Crypt()
{
    QByteArray hexText, keyHex, outputHex, ivHex;
    QAESEncryption encryption(QAESEncryption::AES_128, QAESEncryption::CBC);

    const quint8 key[16]    = {0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c};
    const quint8 iv[16]     = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f};

    const quint8 text[64]   = {0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
                              0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, 0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
                              0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11, 0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
                              0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17, 0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10};

    const quint8 output[64] = {0x76, 0x49, 0xab, 0xac, 0x81, 0x19, 0xb2, 0x46, 0xce, 0xe9, 0x8e, 0x9b, 0x12, 0xe9, 0x19, 0x7d,
                              0x50, 0x86, 0xcb, 0x9b, 0x50, 0x72, 0x19, 0xee, 0x95, 0xdb, 0x11, 0x3a, 0x91, 0x76, 0x78, 0xb2,
                              0x73, 0xbe, 0xd6, 0xb8, 0xe3, 0xc1, 0x74, 0x3b, 0x71, 0x16, 0xe6, 0x9e, 0x22, 0x22, 0x95, 0x16,
                              0x3f, 0xf1, 0xca, 0xa1, 0x68, 0x1f, 0xac, 0x09, 0x12, 0x0e, 0xca, 0x30, 0x75, 0x86, 0xe1, 0xa7};


    for (int i=0; i<64; i++)
    {
        if (i<16) {
            keyHex.append(key[i]);
            ivHex.append(iv[i]);
        }
        hexText.append(text[i]);
        outputHex.append(output[i]);

    }

    QByteArray encodedHex = encryption.encode(hexText, keyHex, ivHex);

    return (outputHex == encodedHex);
}

bool testCBC128Decrypt()
{
    QByteArray hexText, keyHex, outputHex, ivHex;
    QAESEncryption encryption(QAESEncryption::AES_128, QAESEncryption::CBC);

    const quint8 key[16]    = { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c };
    const quint8 iv[16]     = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f };

    const quint8 text[64] = { 0x76, 0x49, 0xab, 0xac, 0x81, 0x19, 0xb2, 0x46, 0xce, 0xe9, 0x8e, 0x9b, 0x12, 0xe9, 0x19, 0x7d,
                              0x50, 0x86, 0xcb, 0x9b, 0x50, 0x72, 0x19, 0xee, 0x95, 0xdb, 0x11, 0x3a, 0x91, 0x76, 0x78, 0xb2,
                              0x73, 0xbe, 0xd6, 0xb8, 0xe3, 0xc1, 0x74, 0x3b, 0x71, 0x16, 0xe6, 0x9e, 0x22, 0x22, 0x95, 0x16,
                              0x3f, 0xf1, 0xca, 0xa1, 0x68, 0x1f, 0xac, 0x09, 0x12, 0x0e, 0xca, 0x30, 0x75, 0x86, 0xe1, 0xa7 };

    const quint8 output[64] = { 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
                                0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, 0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
                                0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11, 0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
                                0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17, 0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10 };


    for (int i=0; i<64; i++)
    {
        if (i<16) {
            keyHex.append(key[i]);
            ivHex.append(iv[i]);
        }
        hexText.append(text[i]);
        outputHex.append(output[i]);

    }

    QByteArray decodeHex = encryption.decode(hexText, keyHex, ivHex);

    return (outputHex == decodeHex);
}

bool testECB256Crypt()
{
    QByteArray hexText, keyHex, outputHex;
    QAESEncryption encryption(QAESEncryption::AES_256, QAESEncryption::ECB);

    uint8_t key[32] = { 0x60, 0x3d, 0xeb, 0x10, 0x15, 0xca, 0x71, 0xbe, 0x2b, 0x73, 0xae, 0xf0, 0x85, 0x7d, 0x77, 0x81,
                      0x1f, 0x35, 0x2c, 0x07, 0x3b, 0x61, 0x08, 0xd7, 0x2d, 0x98, 0x10, 0xa3, 0x09, 0x14, 0xdf, 0xf4 };
    uint8_t text[16]  = {0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a};
    uint8_t output[16] = { 0xf3, 0xee, 0xd1, 0xbd, 0xb5, 0xd2, 0xa0, 0x3c, 0x06, 0x4b, 0x5a, 0x7e, 0x3d, 0xb1, 0x81, 0xf8 };

    for (int i=0; i<16 ; i++)
    {
        hexText.append(text[i]);
        outputHex.append(output[i]);
    }
    for (int i=0; i<32 ; i++)
        keyHex.append(key[i]);

    QByteArray encodedHex = encryption.encode(hexText, keyHex);
    encodedHex.truncate(16);

    return (outputHex == encodedHex);
}

bool testECB256Decrypt()
{
    QByteArray hexText, keyHex, outputHex;
    QAESEncryption encryption(QAESEncryption::AES_256, QAESEncryption::ECB);

    uint8_t key[32] = { 0x60, 0x3d, 0xeb, 0x10, 0x15, 0xca, 0x71, 0xbe, 0x2b, 0x73, 0xae, 0xf0, 0x85, 0x7d, 0x77, 0x81,
                      0x1f, 0x35, 0x2c, 0x07, 0x3b, 0x61, 0x08, 0xd7, 0x2d, 0x98, 0x10, 0xa3, 0x09, 0x14, 0xdf, 0xf4 };
    uint8_t output[16]  = {0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a};
    uint8_t text[16] = { 0xf3, 0xee, 0xd1, 0xbd, 0xb5, 0xd2, 0xa0, 0x3c, 0x06, 0x4b, 0x5a, 0x7e, 0x3d, 0xb1, 0x81, 0xf8 };

    for (int i=0; i<16 ; i++)
    {
        hexText.append(text[i]);
        outputHex.append(output[i]);
    }
    for (int i=0; i<32 ; i++)
        keyHex.append(key[i]);

    QByteArray decodeHex = encryption.decode(hexText, keyHex);
    decodeHex.truncate(16);

    return (outputHex == decodeHex);
}

bool testECB128String()
{
    QAESEncryption encryption(QAESEncryption::AES_128, QAESEncryption::ECB);

    QString inputStr("The Advanced Encryption Standard (AES), also known by its original name Rijndael "
                        "is a specification for the encryption of electronic data established by the U.S. "
                        "National Institute of Standards and Technology (NIST) in 2001");
    QString key("123456789");

    QByteArray hashKey = QCryptographicHash::hash(key.toLocal8Bit(), QCryptographicHash::Md5);

    QByteArray encodeText = encryption.encode(inputStr.toLocal8Bit(), hashKey);
    QByteArray decodeText = encryption.decode(encodeText, hashKey);

    return (QString(decodeText) == inputStr);
}

bool testECB256String()
{
    QAESEncryption encryption(QAESEncryption::AES_256, QAESEncryption::ECB);

    QString inputStr("The Advanced Encryption Standard (AES), also known by its original name Rijndael "
                        "is a specification for the encryption of electronic data established by the U.S. "
                        "National Institute of Standards and Technology (NIST) in 2001");
    QString key("123456789");

    QByteArray hashKey = QCryptographicHash::hash(key.toLocal8Bit(), QCryptographicHash::Sha256);

    QByteArray encodeText = encryption.encode(inputStr.toLocal8Bit(), hashKey);
    QByteArray decodeText = encryption.decode(encodeText, hashKey);

    return (QString(decodeText) == inputStr);
}

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    qDebug() << "Testing in progress...";

    Q_ASSERT(testECB128Crypt());
    Q_ASSERT(testECB128Decrypt());

    Q_ASSERT(testECB256Crypt());
    Q_ASSERT(testECB256Decrypt());

    Q_ASSERT(testCBC128Crypt());
    Q_ASSERT(testCBC128Decrypt());

    Q_ASSERT(testECB128String());
    Q_ASSERT(testECB256String());

    qDebug() << "Testing with instance member DONE";

    return 0;
}