Verify a Zip's Password

Demonstrates how to verify the password for an encrypted or password-protected zip archive.

Downloads:

MS Windows Visual C/C++ Libraries

Linux/CentOS C/C++ Libraries

MAC OS X C/C++ Libraries

Solaris C/C++ Libraries

C++ Builder Libraries

// Needs #include <CkZip.h>

    CkString strOut;

    CkZip zip;

    bool success;

    //  Any string unlocks the component for the 1st 30-days.
    success = zip.UnlockComponent("Anything for 30-day trial");
    if (success != true) {
        strOut.append(zip.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  To verify a password for a Zip, the Zip must be opened:
    success = zip.OpenZip("myProtected.zip");
    if (success != true) {
        strOut.append(zip.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  Set the password to be verified:
    zip.put_DecryptPassword("secret");

    bool passwordOk;
    passwordOk = zip.VerifyPassword();
    if (passwordOk == true) {
        strOut.append("Password is correct.\r\n");
    }
    else {
        strOut.append("Password is incorrect.\r\n");
    }

    zip.CloseZip();


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());