I think that there is no standard solution. You might use one of the standard JS libraries and use a symmetric en/decryption. E.g. CryptoJS, see this discussion.

Put the CrytoJS code in a TC library so you can use it in multiple projects.

[EDIT]

There are two functions load.unmask() and load.decrypt(). For both, according documentation, devwebutils.exe should be used to generate masked or encrypted data.

The issue I've with all these is that it is hard to impossible to protect user/passwords for other (non-authorized testers). Any one that can lay it hands on the script can reconstruct the data. In our lab we have been thinking about solutions where we might generate a library. The hash of that lib-file and the domain/project/test name might be used to retrieve a special key from a service. That service is only accessible from the Load Generators (LGs are only accessible by LRE). This will limit the access to encrypt data and is needs authorized access to LRE to use.

Still special care has to be taken not to use parameters to handle decrypted data, due to possible logging setting. But I agree that this is still not optimal and might need tight integration with LRE as well.

May be you can try like this ? 

Encrypting passwords in bulk - LoadRunner Professional User Discussions - OpenText LoadRunner Professional (microfocus.com)

YES exactly that was my topic - never then PasswordEncoderConsole.exe in my VuGen-installation folder.

Thanks a lot.

Hi There,

here are my sources for my final solution. Because of runtime around 1.2 Sec per iteration in VuGen I did it as Loadtest on 60 loadgens,

I have my data stored in one VTS and the configuration to connect in Runtime Settings / additional Attributes

#include "globals.h"
#include "mic_socket.h"
vuser_init()
{
	lr_load_dll("micsocket.dll");
	
	
	//Aufbau Verbindung zu Daten Virtual Table Server für Testdaten
	VTServer = lr_get_attrib_string("VTServer");
	
	lr_save_string(lr_get_attrib_string("VTServer"),"VTServer");
	
	
	VTSPort = lr_get_attrib_long("VTSPort"); 
	
	lr_save_int(lr_get_attrib_long("VTSPort"),"VTSPort");
	
	
	lrvtc_connect_ex("Server={VTServer}","Port={VTSPort}",LAST);
	
	lr_save_string("SecretPassword","Password");
	
    return 0;
}

Action()
{
    // Installationspfad des PasswordEncoderConsole.exe
// e.g.   const char *executablePath = "\"C:\\VuGen\\bin\\PasswordEncoderConsole.exe\"";
    const char *executablePath = lr_get_attrib_string("executablePath");
    
    // Buffer für Befehlszeile und Rückgabewert 
    char command[400], buf[1024];
 
    // Function Pointer enthält die Adresse des Rückgabewertes des Streams aus der Befehlszeile um die Pipe auszulesen
    long fp = 0;
    
    // Lies die erste Zeile aus der VTS-Tabelle aus
    lrvtc_retrieve_row();
    
    if (strlen(lr_eval_string("{enc_PersID}")) > 0 )
	{
		lr_message("Alle PersIDs & OKNs encodiert!");
		lrvtc_send_row1("PersID;OKN;enc_PersID;enc_OKN", "{PersID};{OKN};{enc_PersID};{enc_OKN}",";",VTSEND_SAME_ROW);
		lr_exit(LR_EXIT_VUSER,LR_PASS);
	}
 
    // Zusammenbau der Befehlszeile über String-Verkettung und Variablenersetzung
    snprintf(command, sizeof(command), "%s %s", executablePath , lr_eval_string("{PersID}"));
    
    // initiate pipe streams to or from a process siehe https://pubs.opengroup.org/onlinepubs/009696799/functions/popen.html
    // r := Pipe auslesen
    fp = popen(command, "r");
    
    // Auslesen der Pipe und schreiben in den Buffer und speichern in einen Parameter
    while (fgets(buf, sizeof(buf), fp) != 0)
    {
        lr_save_string(buf, "enc_PersID");
    }
    
    // pclose - close a pipe stream to or from a process https://pubs.opengroup.org/onlinepubs/009696799/functions/pclose.html
    pclose(fp);
    
    // Function Pointer initialisieren / zurücksetzen
    fp = 0;
    
    snprintf(command, sizeof(command), "%s %s", executablePath , lr_eval_string("{OKN}"));
 
    fp = popen(command, "r");
    
    while (fgets(buf, sizeof(buf), fp) != 0)
    {
        lr_save_string(buf, "enc_OKN");
    }
    
    pclose(fp);
    
    fp = 0;
    
    lrvtc_send_row1("PersID;OKN;enc_PersID;enc_OKN", "{PersID};{OKN};{enc_PersID};{enc_OKN}",";",VTSEND_SAME_ROW);
    
    return 0;
}
 

Action()
{
    // Installationspfad des PasswordEncoderConsole.exe
// e.g.   const char *executablePath = "\"C:\\VuGen\\bin\\PasswordEncoderConsole.exe\"";
    const char *executablePath = lr_get_attrib_string("executablePath");
    
    // Buffer für Befehlszeile und Rückgabewert 
    char command[400], buf[1024];
 
    // Function Pointer enthält die Adresse des Rückgabewertes des Streams aus der Befehlszeile um die Pipe auszulesen
    long fp = 0;
    
    // Lies die erste Zeile aus der VTS-Tabelle aus
    lrvtc_retrieve_row();
    
    if (strlen(lr_eval_string("{enc_PersID}")) > 0 )
	{
		lr_message("Alle PersIDs & OKNs encodiert!");
		lrvtc_send_row1("PersID;OKN;enc_PersID;enc_OKN", "{PersID};{OKN};{enc_PersID};{enc_OKN}",";",VTSEND_SAME_ROW);
		lr_exit(LR_EXIT_VUSER,LR_PASS);
	}
 
    // Zusammenbau der Befehlszeile über String-Verkettung und Variablenersetzung
    snprintf(command, sizeof(command), "%s %s", executablePath , lr_eval_string("{PersID}"));
    
    // initiate pipe streams to or from a process siehe https://pubs.opengroup.org/onlinepubs/009696799/functions/popen.html
    // r := Pipe auslesen
    fp = popen(command, "r");
    
    // Auslesen der Pipe und schreiben in den Buffer und speichern in einen Parameter
    while (fgets(buf, sizeof(buf), fp) != 0)
    {
        lr_save_string(buf, "enc_PersID");
    }
    
    // pclose - close a pipe stream to or from a process https://pubs.opengroup.org/onlinepubs/009696799/functions/pclose.html
    pclose(fp);
    
    // Function Pointer initialisieren / zurücksetzen
    fp = 0;
    
    snprintf(command, sizeof(command), "%s %s", executablePath , lr_eval_string("{OKN}"));
 
    fp = popen(command, "r");
    
    while (fgets(buf, sizeof(buf), fp) != 0)
    {
        lr_save_string(buf, "enc_OKN");
    }
    
    pclose(fp);
    
    fp = 0;
    
    lrvtc_send_row1("PersID;OKN;enc_PersID;enc_OKN", "{PersID};{OKN};{enc_PersID};{enc_OKN}",";",VTSEND_SAME_ROW);
    
    return 0;
}
 

Passwort()
{
	const char *executablePath = lr_get_attrib_string("executablePath");
    
    // Buffer für Befehlszeile und Rückgabewert 
    char command[400], buf[1024];
    
    int OKN_size, PW_size = 0;
        
    // Function Pointer enthält die Adresse des Rückgabewertes des Streams aus der Befehlszeile um die Pipe auszulesen
    long fp = 0;
    
    OKN_size = lrvtc_column_size("OKN");
    PW_size = lrvtc_column_size("enc_PW");
    
    if (PW_size >= OKN_size) 
    {
        lr_exit(LR_EXIT_VUSER,LR_PASS);
    }
 
    // Zusammenbau der Befehlszeile über Sting-Verkettung und Variablenersetzung
    snprintf(command, sizeof(command), "%s %s", executablePath , lr_eval_string("{Passwort}"));
    
    // initiate pipe streams to or from a process siehe https://pubs.opengroup.org/onlinepubs/009696799/functions/popen.html
    // r := Pipe auslesen
    fp = popen(command, "r");
    
    // Auslesen der Pipe und schreiben in den Buffer und speichern in einen Parameter
    while (fgets(buf, sizeof(buf), fp) != 0)
    {
        lr_save_string(buf, "enc_PW");
    }
    
    // pclose - close a pipe stream to or from a process https://pubs.opengroup.org/onlinepubs/009696799/functions/pclose.html
    pclose(fp);
    
    lr_output_message("Password %s ; Encoded Password %s ; Decoded Password %s", lr_eval_string("{Password}"),lr_eval_string("{enc_PW}"), lr_unmask(lr_eval_string("{enc_PW}")));
    
    lrvtc_send_row1("Password","{enc_PW}",";",VTSEND_SAME_ROW);
    
    return 0;
}

Hope that helps somebody in the future