Lock Codes

Free EXE Lock provides optional encryption modes to lock your EXE programs: Speed priority - faster but not compressed; Security priority - slower mode, secure & compressed. It is able to lock executable programs on your computer to password-protect any executable file from non-authorized...

Free App Lock is an innovative application encryptor, which allows you to lock any executable programs with password from non-authorized execution to block other clients from modifying the variables stored in the Application object to protect your privacy. Now, there is no need to worry about...

Recently, we find some published programs for the construction of LDPC codes have not concerned the Girth test problem, which will not the implementation of LDPC Codec to have good decoding BER. Thus, we publish a simple program to provide a tool for the girth 4 test of LDPC codes.Input a parity...


Platforms: Matlab

The program constructs girth-six QC-LDPC codes given row-weight,k, column-weight,j, and sub-matrix size,m. The obtained parity-check matrix is stored in H. The construction has flexibility in that j,k and m can be varied.The program achieves girth-six by applying the row-column constraint. There...


Platforms: Matlab

The program constructs girth-twelve column-weight QC-LPDC codes. The rate can be changed by changing k(row-weight), size is changed by varying m(sub-matrix size). The program/algorithm does not guarantee to get girth twelve code. It guarantees girth of eight. One may need to run the programs many...


Platforms: Matlab

The program contructs column-weight three girth-eight QC-LPDC codes given row-weight and sub-matrix size. row-weights and sub-matrices sizes are variable.


Platforms: Matlab

it encodes and decodes binary msg using hamming codes and detect errors, correct single error.


Platforms: Matlab

The set of MATLAB codes are what I wrote for my Data Communications homework. They show a typical implementation of a (7,4) Hamming code. 'Read the how to run.txt' for instructions on how to use the codes


Platforms: Matlab

LDPC codes BER simulation under AWGN channel. MacKay-Neal based LDPC matrix. Message encoding uses sparse LU decomposition. There are 4 choices of decoder: hard-decision/bit-flip decoder, probability-domain SPA decoder, log-domain SPA decoder, and simplified log-domain SPA decoder.


Platforms: Matlab

This module helps create secret codes that users can enter to automatically register or upgrade their accounts to specific roles. It is particularly useful for cases when it's impractical for the website administrator to manually process and upgrade single subscriptions, but still important to...


Platforms: PHP

BIOS Beep codes is a simple tool that will explain the BIOS error beep codes you motherboard emits. It has an extensive database with the motherboard BIOS beep codes from all major BIOS manufacturers (AMI, AWARD, Phoenix, IBM). The computer POST (Power On Self Test) tests the computer,...


Platforms: Windows

Free File Lock is a safe file encrypter program that can protect your important or sensitive files with uncrackable encryption algorithms. You can lock your files like images, music, movies as well as executable files & compressed files. It makes sure that no one can mess with your files without...


Platforms: Windows, Windows 8, Windows 7

PCMate Free EXE Lock is a safe and efficient EXE file encryptor tool that is specially designed to lock any executable programs on your computer to protect them from non-authorized execution. When protecting a program, PCMate Free EXE Lock modifies the binary executable itself, so that it first...


Platforms: Windows, Windows 8, Windows 7, Windows Server

Full Key Codes is a little utility to display code informations about each key of the keyboard. The developers know why :-) In a little window, you will obtain for each key down its character, its ASCII code, and the keyboard code in hexadecimal and decimal.


Platforms: Mac

These services will be available in Finder's Services menu and contextual menu if files and/or folders are selected. They enable you to lock and unlock one or more Finder items.


Platforms: Mac

PCTuneUp Free EXE Lock is a powerful yet easy to use system utility that enables you to lock any Windows executable applications in few steps, like games, web browsers, tax preparation software, etc. It is designed for people who want to protect their sensitive programs from an unauthorized usage...


Platforms: Windows, Windows 8, Windows 7

If you are have some important programs installed in your computer that you don't one anyone but your self to use it due to security reason, locking it would be an ideal solution. PCBooster Free App Lock enables you to lock any applications or programs instantly. You can use your own password to...


Platforms: Windows, Windows 8, Windows 7

Lock My PC Free Edition is a good and free alternative to standard Win+L Windows lock. The program lets you to lock your computer with a password while you leave it unattended. It blocks keyboard, mouse and screen. Lock My PC Free Edition comes with a full set of fine tune options. You can...


Platforms: Windows, Windows 8, Windows 7, Windows Server

Free Folder Lock is a data security solution that encrypt & secures your files, while keeping an automatic and real-time backup of encrypted files in the backup cloud. It also offers security for USB drives. Folder Lock Free is an Anti-Hack Solution that lets you lock files, folders and drives;...


Platforms: Windows, Windows 7, Other

The program allows you to install your favorite lock/start screen image on Windows 10 or Windows 8.1. Also, you can choose an image file folder, and the program installs a randomly selected lock/start screen image each logon. The supported image file formats are JPG, PNG, GIF and BMP.


Platforms: Windows 7, Windows, Other