copy-protection

问题 I want to protect a pdf file from being directly linked but instead have my logged in users be able to access it. I have a link which currently goes to a javascript function which posts a form: $('nameofdoc').setProperty('value',doc); document.getElementById('sendme').submit(); where sendme is the name of the form and nameof doc the index of the document I want to display. This then goes to a php file: $docpath = $holdingArray[0].$holdingArray[1]; $file = $holdingArray[0]; //file name

问题 I'm developing a small windows app using c++ and i would like to get some kind of fingerprint of the software/hardware on a pc so that i can allow the app to be run only on certain pc's. I am aware that the app can be cracked but i'm really interested in implementing something like this. Any ideas how could i achieve this? 回答1: It basically depends on how tight you want to couple your software to the underlying hardware. For example you could get some hardware information from the registry,

问题 What is the best way to generate a unique hardware ID on Microsoft Windows with C++ that is not easily spoofable (with for example changing the MAC Address)? 回答1: Windows stores a unique Guid per machine in the registry at: HKEY_LOCAL_MACHINE\Software\Microsoft\Cryptography\MachineGuid 回答2: This used to be the CPU serial number but today there are many types of motherboards and this factor is not accurate. MAC address can be easily forged. That leaves us with the internal hard drive serial

问题 I think this is a bit complicated and probably impossible, but it would be helpful to know if there is any way to do it... Let's say I have a private teaching forum, where each user (paid account) has a username and an encrypted password, and there's a DOWNLOAD section where pdf files can be downloaded by users only. Here's the question: When the file is downloaded, it will be protected by username and password/ password only that match with the username and password of the user himself... in

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 6 years ago . I'm thinking about adding some kind of copy protection to one of my tools. Do you have any experience with that? Have you developed

问题 I want to prevent executable being copied to another PC and thus i need to somehow save information inside my EXE file about that it was already used somewhere else on another PC. Can i embed small piece of information like user's hard drive number into my EXE file so this information would be available when this EXE is copied to another PC? I thought maybe there is a way to read and write to some resource file embedded in an EXE file but i presume that resource file is read only and if so is

问题 I'm looking for a copy/IP protection system for 64-bit Linux platforms. I'm particularly interested in hardware dongles. I am aware of HASP which makes 32-bit Linux compatible dongles, but I need 32-bit and 64-bit support. Anyone have hands on experience with such a system? A good answer will detail which system and how it worked out. 回答1: FlexLM is pretty much the de-facto software licence manager for commercial software, particularly on Linux/Unix. My company has used it in the past, and if

问题 In my app, I access my sqlite database at the following hard-coded location in my code: /data/data/ com.mydomain.appname/databases/database.db If I turn ON copy protection in the Market Place, will my app still have access to this location? Or will I have to change it to something like: /data-private/data/ com.mydomain.appname/databases/database.db (or something like this) Since I have a Dev phone only, I have no way of testing to see if my app still functions normally after turning on copy

问题 There is excel file with complex mathematical model. How to prevent file coping from client machine to other machines? Client have to run Excel and type coefficients into equations, then Excel computes result. I think about VB extension or macros which checks MAC of network card or value in Windows registry... 回答1: There is no way of securely sharing Excel w/o an intermediary application e.g. a WebApp. If you have SharePoint host it via Excel services. If you know ASP.NET or another Web

问题 I understand that no matter what I do, someone will be able to copy it. However I can still make them work hard for it. What are some good ways of making data not easily copied using php compatible coding. --- Added ---- The data is a listing of results for certain local sports events. We send people out to collect the information, post the information, make corrections and such. However a competing website takes our results (I know they are directly copying them) and never updates them which