> ## Documentation Index
> Fetch the complete documentation index at: https://docs.futurex.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Supported commands

> List of supported Excrypt commands for the jPOS integration.

This appendix lists diagnostic and utility commands available through the Excrypt adapter to assist with troubleshooting and system verification.

## Table of supported commands

The following table shows the list of Excrypt commands implemented in this library.

<table>
  <thead>
    <tr>
      <th>Command</th>
      <th>Description</th>
    </tr>
  </thead>

  <tbody>
    <tr>
      <td>DDAT</td>
      <td>Decrypt data</td>
    </tr>

    <tr>
      <td>ECHO</td>
      <td>Message echo</td>
    </tr>

    <tr>
      <td>EDAT</td>
      <td>Encrypt data</td>
    </tr>

    <tr>
      <td>EMVA</td>
      <td>Validate ARQC/generate ARPC</td>
    </tr>

    <tr>
      <td>EPIN</td>
      <td>Encrypt a clear PIN</td>
    </tr>

    <tr>
      <td>GCVC</td>
      <td>Generate CVC (Mastercard)</td>
    </tr>

    <tr>
      <td>GCVV</td>
      <td>Generate CVV (Visa)</td>
    </tr>

    <tr>
      <td>GMAC</td>
      <td>Generate MAC</td>
    </tr>

    <tr>
      <td>GOFF</td>
      <td>Generate PVV</td>
    </tr>

    <tr>
      <td>GPIN</td>
      <td>Generate PIN</td>
    </tr>

    <tr>
      <td>GWKS</td>
      <td>Generate working key</td>
    </tr>

    <tr>
      <td>LKYC</td>
      <td>Calculate check digits</td>
    </tr>

    <tr>
      <td>RKEY</td>
      <td>Generate random key</td>
    </tr>

    <tr>
      <td>TPIN</td>
      <td>Translate PIN blocks</td>
    </tr>

    <tr>
      <td>VCVC</td>
      <td>Verify CVC (Mastercard)</td>
    </tr>

    <tr>
      <td>VCVV</td>
      <td>Verify CVV (Visa)</td>
    </tr>

    <tr>
      <td>VMAC</td>
      <td>Verify MAC</td>
    </tr>

    <tr>
      <td>VPIN</td>
      <td>Verify PIN</td>
    </tr>
  </tbody>
</table>