Question

我有一个Magtek uDynamo并且我正在尝试解密音轨1.我已经阅读了下面的内容并了解了一点，但不知道如何实际解密数据。该供应商表示要使用ANSI测试密钥进行解密，但我找不到任何相关内容。我有KSN，会话和序列号。我也尝试了一些我发现的Java代码，但似乎没有用。它返回null或者我可能输错了BDK。我只是使用我在某处阅读的序列号。我在Android上这样做。我希望代码能够在服务器上运行，而不是在设备上运行，因此它会与HTTPS一起加密。

更新我希望按照ANSI X9.24第1部分标准解密3DES DUKPT

我正在使用此https://github.com/camcima/dukpt-php/tree/e8fceb4df8757e7e097c435221b4e93e097d3c9f

我必须更新文件，并确保我获得了最新的phpseclib并且它运行但是数据出现像C A fr （Wb f7zn：W9，F7，M = zCRW

我一定错过了什么。我尝试过不同的模式，我正在尝试寻找编码。如果您有解决方案或想法，请告诉我。他们的测试数据确实有用，所以我不确定我和他们的测试数据有什么区别

代码我在root中运行index.php：

include 'vendor/autoload.php';

use DUKPT\DerivedKey;
use DUKPT\KeySerialNumber;
use DUKPT\Utility;

$encryptedHexData = 'de8bfe769dca885cf3cc312135fe2cccfacf176235f4bdee773d1865334315ed2aefcab613f1884b5d63051703d5a0e2bd5d1988eeabe641bd5d1988eeabe641';
$ksn = '00000232100117e00027';
$bdk = '0123456789ABCDEFFEDCBA9876543210';

$key = new KeySerialNumber($ksn);
$encryptionKey = DerivedKey::calculateDataEncryptionRequestKey($key, $bdk);
$actual = Utility::hex2bin(Utility::removePadding(Utility::tripleDesDecrypt($encryptedHexData, $encryptionKey, true)));


echo $encryptionKey.'<br />';

echo $actual.'<br /><br />';

Answer 1

使用正确的BDK和KSN，您现在需要做的就是尝试不同的模式。

目前您正在使用include 'vendor/autoload.php'; use DUKPT\DerivedKey; use DUKPT\KeySerialNumber; use DUKPT\Utility; $encryptedHexData = 'C25C1D1197D31CAA87285D59A892047426D9182EC11353C051ADD6D0F072A6CB3436560B3071FC1FD11D9F7E74886742D9BEE0CFD1EA1064C213BB55278B2F12'; $ksn = 'FFFF9876543210E00008'; $bdk = '0123456789ABCDEFFEDCBA9876543210'; $key = new KeySerialNumber($ksn); $encryptionKey = DerivedKey::calculatePinEncryptionKey($key, $bdk); $decryptedOutput = Utility::hex2bin(Utility::tripleDesDecrypt($encryptedHexData, $encryptionKey, true)); echo ' Pin Encryption Key: '.$encryptionKey; echo ' Decrypted Output: '.$decryptedOutput; $encryptionKey = DerivedKey::calculateMacRequestKey($key, $bdk); $decryptedOutput = Utility::hex2bin(Utility::tripleDesDecrypt($encryptedHexData, $encryptionKey, true)); echo ' Mac Request Key: '.$encryptionKey; echo ' Decrypted Output: '.$decryptedOutput; $encryptionKey = DerivedKey::calculateMacResponseKey($key, $bdk); $decryptedOutput = Utility::hex2bin(Utility::tripleDesDecrypt($encryptedHexData, $encryptionKey, true)); echo ' Mac Response Key: '.$encryptionKey; echo ' Decrypted Output: '.$decryptedOutput; $encryptionKey = DerivedKey::calculateDataEncryptionRequestKey($key, $bdk); $decryptedOutput = Utility::hex2bin(Utility::tripleDesDecrypt($encryptedHexData, $encryptionKey, true)); echo ' Data Encryption Request Key: '.$encryptionKey; echo ' Decrypted Output: '.$decryptedOutput; $encryptionKey = DerivedKey::calculateDataEncryptionResponseKey($key, $bdk); $decryptedOutput = Utility::hex2bin(Utility::tripleDesDecrypt($encryptedHexData, $encryptionKey, true)); echo ' Data Encryption Response Key: '.$encryptionKey; echo ' Decrypted Output: '.$decryptedOutput;

您需要尝试其他模式以确定您的设备正在使用哪种模式。这是我用来为我的设备找到正确结果的代码。

Pin Encryption Key: 27F66D5244FF621EAA6F6120EDEB427F
Decrypted Output: %B5452300551227189^HOGAN/PAUL ^08043210000000725000000?

Mac Request Key: 27F66D5244FF9DE1AA6F6120EDEBBD80
Decrypted Output: W����U�P�TfB/`����þ&��f��3y;�U�Zy��UK�[��s�;�>�[�b

Mac Response Key: 27F66D52BBFF62E1AA6F612012EB4280
Decrypted Output: b�K2a�S0��9�Mb-����*L�J���� ��s�\���H�����=���e�]�,���Hwq�

Data Encryption Request Key: C39B2778B058AC376FB18DC906F75CBA
Decrypted Output: RA]�ԅⱰQ���'v}b��h��St�����?� lu/�ٵ�P��!���6�� �

Data Encryption Response Key: 846E267CB822197406DA2B161191C6E4
Decrypted Output: ��,�B^FZ�� ςs�c���*E�4��0��ǂ}����6`-P�b�ʞ̳aصĬ�&���+��

因此，对于此BDK和KSN，以下是结果输出。

(dt1=name,phone_number)

按照ANSI X9.24第1部分标准解密3DES DUKPT

1 个答案: