Results for "Category: Security"

(Because of an error at PSC i had to re-upload this article :-S) This method can be used to authenticate users by letting them entering their email address and password. This method is highly secure due to its use of the MD5 algorithm to send the password encrypted. Provided security is better then the basic authentication featured in most browsers, and can be used in combination with HTTPS.

My first ASP project: a login page. It uses a database to verify usernames and passwords. Also includes registration ability. Comment is supplied so that less experienced programmers can also understand the code. PLEASE VOTE IF YOU LIKE THIS CODE!

Encrypts and Decrypts strings on a webpage. Source is hidden from the user, so that a cracker can only guess about the algorythm.

Need Security on your site. No need for global files or dll's, this DSN-Less Username and Password example is done using JavaScript and ASP. It not only checks for authentication but sets a session for different levels of usergroups. Check it out, very easy to use and to expand upon.

Prevent unauthorized viewing of website javascript and style sheet files. Simply rename all your style and javascript files to the .asp extension. Then include the validate_view.asp file at the top of each file. Open the validate_view.asp file and change the top the constants to those required. Then finally call the procedure name "validate_view" with the current files content type as the parameter.

Users can submit their Username, password, and E-Mail address to register for your site! You can then use a password/username checker from this site to see if the logged in correctly!

A file that replaces the old coder.c. Thanks to Brett Taylor. Found at http://www.cprogramming.com/source.html

*(UPDATED)* ADDED: -Code Re-written -Now updates file size if you no the file has been changed by a program. This program makes a list of all the .ini .sys and .com files on you hard-drive in the c:\windows directory and then calculates there size and keeps them in a log. and then every time the program starts it checks the file sizes against the logged ones to see if they differ, if they do then it tells you. I made this because virusses can sometimes alter files and hide inside them so this basicly keeps a eye on them..

This is an early version of the new password program I am working on, it saves Passwords to disk with very low level encryption and it allows you to call it with-In dos prompt with arguments. Please tell me what you think.

Have you ever fogot a password, but it is still inside your program, only that it is hidden with astricks? This source will show you how to remove those astricks and show whats really there. (see screenshot)

*UPDATED* Now uses a more recursive and less pattern oriented algorithm. Basically encrypts a text type file using a simple recursive character shift techinque. Pretty basic, but powerful.

This program is my attempt at encryption. It's fairly secure, I think. It's definitely not a professional job, but it'll do. I devised a funky key representation/generation scheme. Check it out! Read the documentation for much more detail on how to operate it. (Tomb.txt)

It reads the binary of a file, and outputs it in reverse so the new "encrypted" file can't be normally read. To decrypt encode the new file and it will be reversed again, restoring it back to normal. Its pretty handy, and simple, please rate this code.

This code decrypts the passwords stored in a person's computer in the file *.pwl. This is where the passwords are stored for anything where someone has used the "save username and password" feature on a program, like internet dial-up. This is the only C source code of its kind at this site!! Please remember to RATE this awesome code!

This is not really meant as a repost of the one Jared Bruni did (there are some similarties, I admit...only in two cases); this is more of a demonstration of a more efficient way to perform the same task (i.e. no dynamic memory required and writting directly to the file). And, just to keep things a little interesting, this one can delete stuff from a list containing filenames. Vote/Comment/whatever, just keep the "you stole someone else's idea" stuff/flames (which I didn't) to a minimum, k? (update: fixed a slight logic bug and added a little extra error checking in the getline function) update 5-12-02: It's fixed now, according to the software I used to test it (R-undelete). Give it a whirl :)

This is a password script. Every charachter the user input it displays a star. the password is kcTHEgreat. Catches Control c (Taught to me by a friend :)) so the only way out is to enter the correct password. If you like and think it's secure put it in your autoexec.bat

Example of how to stream data behind a "facade" file. Stream 1M behind a 1K text file, and explorer/DIR still shows the file to be 1K. According to "Hacking Exposed 2ED" there is only one application that can find these streams.

Enable or disable the start menu in one line of code.

Provides your site with security. A login and password, with the ability for the user to change their own password. It uses a DSN-less Access database so that you do not need to set up a DSN on the server.

MyLogin is created entirely in ASP. With just a few simple steps you can password protect any of your pages without knowing how to code ASP (But it Helps!) You can assign individual access levels or you can assign Group access levels. You an also assign Expiration Dates on Groups or Individual Levels. MyLogin uses a DSNLess Access database so you will not have to set up an ODBC. Best of all MyLogin is absolutely FREE!