To encrypt password in LRE, We can make use of PasswordEncoderConsole.exe which is available in VuGen's installation\bin directory.

It accepts a password on command line and output result to console.

I have created a simple PowerShell script which will take the inputs from file and encrypt them into a new file.

Below is the code. Copy this code into a file and save it as “password_encode.ps1” and run.

Note:- Change the source file and output file as per your location.

$sourceFile = "C:\Users\admin\Downloads\test.txt"

$outputFile = "C:\Users\admin\Downloads\testEncrypted.txt"

Clear-Content -Path $outputFile

Write-Output "Encrypting passwords"

foreach($line in Get-Content $sourceFile) {
     & "C:\Program Files (x86)\Micro Focus\Virtual User Generator\bin\PasswordEncoderConsole.exe" $line | Out-File -FilePath $outputFile -Append
}

Venkatesan Arjunan I have a similar scenario, can you please assist?

Your above script takes the input from txt file and encrypt it using password encode.exe and write to testEncrypted.txt file. Instead input will be retrieved from web_reg_save_param function say password_param. Now password_param should be taken as input to powershell script and write to a textEncrypted.txt. How can this be achieved? Appreciate your response. 

I don't know why you wanted to do this way but you can try two things.

1. You can save the output of web_reg_save_param to a file and feed that into poweshell. 
2. You can directly run cmd command to encrypt it in vugen script. But whatever the case, if you enable extended logs, the parameter saved will be visible in log as plaintext before encrypted. Here is the code and sample script attached for this. 

Action()
{
	
	const char *executablePath = "\"C:\\Program Files (x86)\\Micro Focus\\Virtual User Generator\\bin\\PasswordEncoderConsole.exe\"";
	char command[300], buf[1024], encryptedPwd[1024], trimmed_out[1024];
	long fp;
//	const char *arguments= "password";
	
	lr_save_string("password123", "param_password");

	snprintf(command, sizeof(command), "%s %s", executablePath , lr_eval_string("{param_password}"));

	lr_output_message(command);
	
	fp = popen(command, "r");
	while (fgets(buf, sizeof(buf), fp) != 0)
	{
		remove_newline(buf, trimmed_out);
		lr_save_string(buf, "encryptedPwdWithoutTrim");
		lr_save_string(trimmed_out, "encryptedPwdTrimmed");
	}
    pclose(fp);
    
    lr_output_message("decyptedPwd %s", lr_unmask(lr_eval_string("{encryptedPwdTrimmed}")));

	return 0;
}

void remove_newline(const char *source, char *destination) {
	while (*source) {
		if (*source != '\n') {
			*destination = *source;
			destination++;
		}
		source++;
	}
	*destination = '\0';
}

output for the above code is below. I had to trim the output of PasswordEncoderConsole.exe as it produces newline as well.  

Virtual User Script started at: 22/05/2024 10:52:24
Starting action vuser_init.
Web Turbo Replay of LoadRunner 2023.0.0 for Windows 10; build 506 (Mar 08 2023 13:11:40)  	[MsgId: MMSG-26983]
Run mode: HTML  	[MsgId: MMSG-26993]
Replay user agent: Go-http-client/1.1  	[MsgId: MMSG-26988]
Runtime Settings file: "C:\Venkat\LR_Scripts\Common\password_encoding_using_vugen\\default.cfg"  	[MsgId: MMSG-27141]
Ending action vuser_init.
Running Vuser...
Starting iteration 1.
Maximum number of concurrent connections per server: 2  	[MsgId: MMSG-26989]
Starting action Action.
Action.c(9): Notify: Saving Parameter "param_password = password123".
Action.c(11): Notify: Parameter Substitution: parameter "param_password" =  "password123"
Action.c(13): "C:\Program Files (x86)\Micro Focus\Virtual User Generator\bin\PasswordEncoderConsole.exe" password123
Action.c(19): Notify: Saving Parameter "encryptedPwdWithoutTrim = 664dc05a165e47506b32f69142cce4\n".
Action.c(20): Notify: Saving Parameter "encryptedPwdTrimmed = 664dc05a165e47506b32f69142cce4".
Action.c(24): Notify: Parameter Substitution: parameter "encryptedPwdTrimmed" =  "664dc05a165e47506b32f69142cce4"
Action.c(24): decyptedPwd password123
Ending action Action.
Ending iteration 1.
Ending Vuser...
Starting action vuser_end.
Ending action vuser_end.
Vuser Terminated.

/cfs-file/__key/communityserver-discussions-components-files/194/password_5F00_encoding_5F00_using_5F00_vugen.zip

Thank you so much Venkatesan Arjunan This is exactly what I'm looking for. Also, since our password is too long, script running for 1 iteration is taking long time to complete as it goes to while loop to remove extra line generated by password encoder. If we can remove that step from script and write encrypted password with "\n", I can fix it by using notepad to remove \n piece. I would really appreciate if you can modify the script to write encrypted password with \n so that it saves script run time for several 1000 passwords. 

if you want to write the encrypted password directly to a file, then the script will become very simple. See the below updated script for you. There is no need to remove "/n" as it will be written as new line on text file. 

The encrypted passwords will be written to a file called "encrypted_pwd.txt" on your script folder. There is no 

Action()
{
	

	long FileVarriable;  
	char FileLocation[1024] = "encrypted_pwd.txt";
	const char *executablePath = "\"C:\\Program Files (x86)\\Micro Focus\\Virtual User Generator\\bin\\PasswordEncoderConsole.exe\"";
	char command[300], buf[1024], encryptedPwd[1024];
	long fp;
//	const char *arguments= "password";
	
	lr_save_string("password123", "param_password");

	snprintf(command, sizeof(command), "%s %s", executablePath , lr_eval_string("{param_password}"));

	fp = popen(command, "r");

	while (fgets(buf, sizeof(buf), fp) != 0)
	{
		lr_save_string(buf, "encryptedPwd");
	}
    pclose(fp);

    FileVarriable = fopen (FileLocation,"a+");
    fprintf (FileVarriable, "%s", lr_eval_string("{encryptedPwd}"));
    fclose (FileVarriable);

	return 0;
}