Means drm reset. DRM license protection - what is it? How to reset a license

WHAT IS THE PROBLEM?

Digital rights management (DRM) is software or hardware that intentionally limits or complicates various actions with objects of copyright and related rights in electronic form(copying, modification, viewing, etc.) after their sale to the end user. DRM was originally invented to combat online copyright infringement and maintain regular revenue streams from the sale of digital copies, but DRM now causes significant inconvenience to legitimate consumers and helps large companies stifle innovation and competition. software technologies copyright holders are eliminating the fair use doctrine and prosecuting (including through criminal prosecution) those who attempt to circumvent the fair use restrictions they impose in software.

Although DRMs are intended to prevent only unauthorized copying of works, they generally do not allow or limit any copying, including within the framework of fair use of works (including free and former proprietary works for which the exclusive rights have expired), because It is impossible by technical means to automatically distinguish “legal” copying from “illegal” copying.

DRM tools allow you to limit the number of copies and may also impose other restrictions, such as limiting the period during which the protected work can be viewed or played. DRM does not allow you to transfer legally purchased books from one format to another, or play/read them in another country in which the copyright holder does not provide appropriate support and service.

DRM IN US AND INTERNATIONAL LAW

The issue of protecting works from copying first became very relevant for corporate copyright holders with the advent of audio and video recorders, the appearance of which made media corporations noticeably nervous, because anyone had the opportunity to create a copy of a music album or movie without leaving home. In the US, this led to the so-called Betamax case, in which Universal tried to stop Sony from making recordable VCRs. The case was resolved in Sony's favor, setting a legal precedent that it is legal to manufacture systems that, in addition to having illegal uses (making illegal copies of films broadcast on TV), also have significant legal uses (recording TV shows for later viewing in a more user-friendly manner). time - this application was also found to be fair use at trial).

The popularization of computers, the development of the Internet and the general transition to digital methods of storing and transmitting information have only increased the concerns of copyright holders.

Today, DRM is used by many foreign companies in the field of selling digital content, incl. Amazon, Apple Inc., Microsoft, Electronic Arts, Sony, 1C, Akella, etc.

At the international level, states have the duty to provide “legal protection and effective means legal protection from circumvention of existing DRMs are enshrined in Article 11 of the WIPO Copyright Treaty and Article 18 of the WIPO Performances and Phonograms Treaty.

In addition, DRM bypass is also protected by criminal law. The fundamental international normative act in this area, which forms the basis for many national laws of Western countries, is the Computer Crime Convention CDCE No. 185, opened for signature in Budapest on 23/11/2001. One of the principles of this Convention is the establishment of criminal liability for the acquisition and use of unlicensed software.

Representatives of the entertainment industry decided to slow down the development of file-sharing technologies for distributing and copying copyright-protected content by introducing DRM into the technology. This time the most popular technology for structuring and presenting content for world wide web in HTML-5 web browsers. The said initiative was announced by the World Wide Web Consortium (W3C) under the name “Encrypted Media Extensions” (EME).

DRM (stands for Digital Rights Management) is not a single technology, but rather a class of technologies used by publishers to control digital content. For the end user it might look something like this: an audiobook purchased from digital form on some website, plays perfectly on the computer from which the purchase was made. But after copying a book to another computer, it turns into a useless file that cannot be played by any player.

Real-life examples of the use of DRM technologies can be much more complex. DRM was originally developed to prevent digital products from being copied, but the next generation of DRM also provided tools to restrict viewing, printing, editing, and the like.

In an attempt to protect the interests of copyright holders, DRM has generated numerous complaints from people purchasing digital products. Inability to use purchased music on various personal devices repelled buyers. Eventually, publishers began to realize that they could sell music digitally without DRM protection—and even more successfully.

DRM technologies have received legislative support. For example, many countries have laws that prohibit circumvention of copy protection.

But one problem with DRM is that these technologies can prevent buyers from exercising their legal rights.

DRM license - what is it on the phone and on the computer?

For example, create backup copy purchased work.

Without delving into the intricacies of legislation and the practice of applying certain laws in practice, we can propose a strategy that will be completely legal in most countries (Australia may be mentioned among the exceptions). You may make multiple copies for your own use or for reserve (but not for sale/distribution). Please note that making more than 10 copies may constitute commercial use, so excessive copying should be avoided. There are no hard and fast rules for making copies, so technically you could lose DRM somewhere in the process and end up with unprotected MP3 copies. However, using a program designed to remove copy protection may not be legally safe.

Fortunately, DRM can also be removed using general software such as MP3 Recorder Studio. Simply start playing the purchased protected audio file using the appropriate program (iTunes, Windows Media Player or other), and capture audio using MP3 Recorder Studio, saving the audio directly to MP3. This process uses the built-in feature of sound cards to capture audio from within the device itself. Most sound cards provide a recording device called "Stereo Mix" (there are various options titles), this device allows you to capture everything that the sound card plays. May require installation latest driver from the manufacturer's official website sound card, because drivers installed automatically by Windows often disable and hide this device.

You can find more information about copying protected music using MP3 Recorder Studio in this article.

Method for protecting media content. Is DRM possible on the Web?

Quite a large part of our projects is related to the storage and transmission of video content on the Internet. One of the questions frequently asked by customers is the issue of protecting content from illegal copying and distribution. There is a myth that there are software products and technologies that can ensure that video content cannot be copied and distributed by attackers. In our report, we tried to talk about existing technologies, their vulnerabilities, and open and free analogues that provide the same level of protection as proprietary and very expensive products.

Denis Eldandi: Good day to all! So, I’ll tell you how bad everything is with DRM technologies, and Alexander (Kistanov) will talk about how to live with it. Let's first - a brief introduction about what streaming video and DRM are. Idea streaming video is to play video or audio that comes from the network without downloading the entire file in advance, with fairly small delays and little buffering; it's called streaming. Streaming saves the user’s time and nerves, as well as traffic. Actually, this doesn’t happen in non-streaming. We will talk about streaming in relation to video hosting on the Internet, and as such - about streaming technologies such as RSTP, RTMP and HTTP pseudo-streaming.

With the advent of content on the Internet, this is especially true for content in high quality, copyright holders are beginning to worry about protecting it from illegal copying. Therefore, they are offered copy protection, which is called DRM. Officially stands for Digital Rights Management, Digital Rights Management. Although many prefer decoding Digital Restriction Management – ​​Managing digital restrictions.

In general, DRM is a way to prohibit and restrict the creation of copies of a work that are distributed digitally. Although, now some DRM system vendors say that the goal is simply to make it more difficult to create such copies. Most DRM systems use fairly strong encryption. To read encrypted information you need The secret key. However, there is almost no sense in this, because for legitimate reading and information and for watching films, you need the same key as for illegitimate copying, for example. Actually, DRM systems try to hide the key from the user in one way or another, but since the user part of DRM systems is completely in the hands of the system user, he is completely able to specified key get it using the so-called trusted client problem.

Another vulnerability, although less interesting, is that one way or another the film will end up at some point in analog form, albeit not in the cable to the TV, but certainly on the screen itself, and from there it can always be burned to disk, albeit with some loss of quality. The so-called analog hole is very vulnerable. And of course, there is very little enough complete systems DRM systems that would not provide media content in open (digital) form. For example, there is a very common method of “bypassing” DRM - removing the stream from the computer’s video buffer (if you were doing a screencast). On the other hand, Windows Media Player, for example, uses various techniques to prevent this from happening. But the developers also do not sleep, and bypass them one way or another. Actually, I didn’t say anything new here, all this is known, there is an organization, a movement that talks about it (on the screen). But DRM vendors still say they're doing well.

The developers of RTMP thought about this. The RTMP protocol was originally developed by Macromedia for transmitting audio and video over the Internet between a Flash application and a CRM. It uses Port 1235 TCP and works according to a request-response scheme: the client requests a URL, and the server serves the video. The RTMP protocol has different varieties. For example, RTMPT uses HTTP as transport, and RTMPS uses HTTPS/SSL for encryption.

And there is the RTMPE protocol, proposed to protect content, and now the manufacturer calls it protected streaming. It should ideally “kill two birds with one stone” – protect (encrypt the stream) and verify the client. The idea was that only the correct client could receive the video, which would check on its side, not show it to “whoever doesn’t need it,” and it would be impossible to intercept the flow between the server and the client. RTMPE does not use SSL for encryption, the developers decided that it was quite expensive on the server side, i.e. expensive in terms of performance, and decided to make a homemade “thing” that would use temporary keys and encrypt data using them. But in fact, since there is no verification of the authenticity of the server on the client side, you can easily launch a Man in attack on this protocol the middle, where the “attacker” perfectly obtains the content in open form and saves it on your hard drive.

Also, their so-called client verification is based on a very strange algorithm: the Flash application calculates its own hash, takes its own size and sends it to the server. And the server allegedly knows, and if he arrived incorrectly, he would not give the video back. But in fact, it doesn’t cost anything to write your own separate client that would download and save data to disk. Of course, saving an RTMPE stream is a little more complicated than right-clicking and saying “save as”. But in fact, there are client programs that download anything via RTMPE. And if, of course, the developers set out to make illegal copying more difficult, then they probably achieved their goal one way or another, but it would be an exaggeration to say that their content is protected. What are the ways out of this situation? Alexander will tell you about this.

Alexander Kistanov: As was said, there are really no ways out, practically Any existing DRM solution does not provide a 100% guarantee that the content will be protected and safe. So, what should we do then? In fact, it turns out that there is no need to use any specific DRM solution. The fact is that all existing DRM solutions for web applications have disadvantages. In particular, for example, for some it is the limitations of the platform, for others it is the ability to use these solutions only on Windows and the requirement for resources; Also, DRM solutions often cost a significant amount of money. Again, they are quite difficult to master.

But as we have shown, there is no particular point in using them. And almost the same thing can be achieved using some simpler solutions. For example, we usually do not use RTMP in our systems, delivering video files via the HTTP protocol. This allows, for example, a gigabit of traffic, and even more, to be sent from a fairly weak server. But how can this approach make copying files more difficult?

In fact, there are possibilities for this. IN Adobe Flash, for example, starting with version 10.1, functionality has appeared that allows you to generate a video stream played by the player directly on the fly. This is the append_bytes() method. Using it, you can quite easily write a simple solution to make saving files difficult. Videos are sent simply via HTTP, on the server side it is encoded on the fly using any stream cipher, and on the client side it is encrypted using a hard-coded key. It won’t be difficult for a programmer to write this, and it won’t be much worse than any existing DRM solution. This will make copying files difficult.

By the way, why, if it is so easy to copy content, are services that actually duplicate existing ones so rare?

This happens because serving the same number of files as on Youtube will require creating the same infrastructure as theirs, which is very expensive and difficult. A potential attacker is tempted to use content already on legal servers, but for his own website. This is possible if they buy paid account, access video in good quality, and after that they create their own website, where they use the video for their own purposes. However, this problem is quite easy to work around even with simple solution using the so-called URL verification using token, which is supported in one form or another by almost any HTTP server. The fact is that when we create links to content, we generate a token that contains information about the lifetime of this link and the IP address of the client for which it is valid. This approach practically eliminates the use of links to content for any illegal purposes.

Thank you very much everyone for your attention!

Questions from the audience:

— Does Warner Brothers know that DRM can be hacked? Why do they require DRM?

Denis Eldandi: Warner Brothers is well aware of everything. They demand DRM because they don't listen to advice enough technical specialists. Their decisions are more often made by some kind of management that has grown out of the “old school”, old type of information dissemination model. They are used to doing everything the old fashioned way and turning a blind eye to some problems.

— Could you tell us about Flash Access 2.0: how can you “open” it, and what are its weak points?

Denis Eldandi: It has a different operating principle - the license is checked on the server. It turns out that our content is always sold in encrypted form, and the key is the same as in your example.

In fact, "attack" Man in the middle could easily have been avoided. It would be enough to check the authenticity of the server, as is done in SSL/HTTPS. But the problem is that the client will always have the key that is needed to decrypt the content, and he will always be able to use it.

— Unfortunately, I’m not a big expert in Access. But what I read is some information: it is believed that if the content is not downloaded, but is watched online, then before receiving the stream we request a license from the content owner’s server. And this key also has a limited “lifetime”. It seems to be stated that if I do not use a “rag” copy of the video, in principle I will not be able to view the content a second time without obtaining a new license?

Denis Eldandi: What if you make a “client” that will use a good, correct key, but save it all to disk?

Denis Eldandi: You save the byte stream, the decrypted stream, to disk. That is, instead of sending it to the video card, you save it to a file. And the one who writes the program, who automates all this. What's the difficulty?

— Tell me, what is the work scheme anyway? I want to watch a movie, so I go to the ticket office and buy a ticket. The ticket is only valid for my IP address for 5 minutes. I send a request to the license server and receive a license to view encrypted content along the way. Or?

Denis Eldandi: You have decrypted the content. But instead of watching it, you saved it to disk in open form. And then they watched it 3 times and distributed the content to everyone.

What is DRM?

— Tell me, will Google Widevine win?

Denis Eldandi: What does it mean to win, in a business sense or in a technical sense? You see, who will win on the business side is more of a marketing issue. WITH technical side there is no one to win, because the idea of ​​DRM is strange from the very beginning.

- Good afternoon! I have been in the content market for a long time, and I want to say that all copyright holders have qualified personnel. They are all aware of what can be stolen, but they are gradually taking small steps towards protecting information so that their decisions will somehow work. It’s clear that the average person wants to watch the video for free, and the copyright holders want to get money for it. This is a normal struggle, and the only question is where it will lead. It was correctly said that either copyright holders will impose a method that will more or less work for everyone, or they will abandon DRM, as happened several years ago when Warner and Sony and other major majors abandoned DRM in relation to music. And they said: “Guys, we are not ready, because we have a high percentage of refusals from people due to the fact that they could not listen to anything at all, or the price is too high.”

It all depends on the situation with the trackers, when all fresh distributions are administratively closed. It seems to me that several departments of operators on trackers that turn off fresh distributions is a much simpler and more effective fight than implanting a DRM chip in the brain of each user, which then needs to be updated again (laughter in the audience).

Denis Eldandi: So how? Administrative methods do not work everywhere. For example, in America they can ban it and send a police squad. But normal people have already moved to other countries.

— Look: on the website rutracker.ru, for example, there are no fresh distributions. What is shown in the cinema cannot appear on the website, despite the fact that you can negotiate with the operator to make a digital copy of the film, because there is an administrative server barrier. As a result, it’s very inconvenient that you can’t get fresh content on the tracker, and the rights holders need at least some time to sell their film until the whole thing goes viral on the trackers.

I am in no way advocating DRM as a user, because to me it is obvious that it is a problematic system. In addition to the fact that you have to pay money, although I easily pay for movies in the cinema, there are many problems with DRM: it is bad, and at the same time it is only for Windows. The question is different: people come to me as a technology supplier and say: “we have the option of distributing Avatar 2 via the Internet 2 days before the cinema, but we can only be allowed to do this for the presence of DRM.” And I say: “Sorry guys, there is no DRM.” As a result, the contract is lost and money is lost.

Denis Eldandi: Yes, so it's easier to say: Adobe promised that RTMPE is reliable, so we will do everything.

And everyone does this, just those present: don’t tell the copyright holders anything that we discussed here, and everything will be fine. (laughter in the audience)

Denis Eldandi: No more questions? Thanks to all!

WMV video format is very widely used in video delivery. However, many WMV videos are locked with DRM copy protection, such as videos downloaded or purchased from Windows Media Player Center, Zune Marketplace, Amazon Video On Demand, BBC iPlayer, Blockbuster, etc. Thanks to license DRM protection, you can only play videos through specified media players.

Then you can look for ways remove DRM from WMV files, so you can play purchased movies in any media player without restrictions. Well, what you need is a professional WMV DRM removal software that can help you achieve your task easily and quickly. Here Video Converter Ultimate recommended remove DRM protection from WMV video files. She integrates full function DRM Removal, DVD Ripper, Video Converter, DVD Creator, Media Transfer, and Video Editor and YouTube Downloader.

DRM in audio and video

With it, you can get rid of WMV DRM protection and convert protected WMV to any popular video formats such as MP4, MOV, MKV, FLV, AVI, etc., and even burn to DVD for playing on DVD players and TV!

Just getting the DRM removal tool and DRM crack from WMV is as easy as ABC!

Remove DRM protection from WMV video files with ease

Download and install this smart DRM converter, install and run it. Then follow below a quick guide to revoke WMV DRM license protection.

1 Add DRM WMV video

Click the "Add Files" button on the left top corner and select the WMV protected files you want to crack DRM and convert. You can also drag and drop files onto the panel's target source. As you can see, the added video can be viewed on the right and you can freely take pictures of your favorite movie scenes.

2 Select output settings

Video Converter Ultimate supports up to 160+ format and media players like AVI, WMV, MPEG, MOV, MKV, FLV, MP4, etc., and 100+ video presets for iPod, iPhone, iPad, Android Phone, BlackBerry, etc.

Open the Output Format download list drop to select the output format you prefer.

To change video settings, click the "Advanced..." button to configure video and audio encoding settings and save them as your own profile.

3 Start removing DRM from WMV

The last step is to click the "Convert" button to start removing DRM copyright protection from WMV and converting WMV to the video format you like. After conversion, you can click the "Find Target" button to access the converted DRM-Free WMV videos directly. Now you can enjoy your movie anytime, anywhere using any player!

Here is a video tutorial on how to remove DRM from WMV.

Some phone users encounter incomprehensible menu settings on their devices. One of these is Android DRM License Reset. What this process is and whether it is necessary is described in this article.

What is DRM

Digital Rights Management (in the Russian version - “Technical means of copyright protection”) is a technology that allows authors to protect their digital products from piracy. In the case of Android, these are applications.

The protection process is carried out through the programmer introducing certain technical means into the software that prevent illegal use. As a result, a person uses the software only for personal needs and cannot copy or transfer it to other people.

DRM license is the key that opens the digital lock of the application. It is designed using complex cryptographic algorithms to prevent quick hacking.

Important! Hacking or circumventing DRM protection is against the law and will result in civil and administrative penalties in most countries.

The principle of operation of the technology:

1. A person purchases a smartphone or tablet on which (in addition to the OS) special software from the developer is installed.
2. After turning on and activating the device, pre-installed programs run in demo mode on limited period(week, month). After its expiration, the software stops functioning and offers to purchase the full version and a DRM license for it.

Resetting licenses

The main purpose of the reset function is to stop using the purchased software.

Important! Hard reset system does not affect purchased licenses, and deleting the latter does not affect the performance of the OS, but will prohibit the use of programs protected by DRM technology.

After this, reboot your device if pre-installed applications were affected.

Note! At the moment, DRM is losing its relevance due to imperfect protection. Android 6 and above do not have a reset feature.

conclusions

DRM license is a right of use full version software that is purchased from its copyright holder. The license reset function allows you to abandon such software without affecting the performance of Android.

In this article I will talk in detail about what it is DRM technology , I will introduce the reader to the features of DRM licenses, and explain how possible it is to reset them and bypass DRM protection.

Our life is full various types content. We watch movies on the Internet, listen to music, look at photos and read books, often without thinking that they were obtained illegally, thanks to the intellectual pirates of our day. The fight against illegal content theft has become a headache for many authors; reputable companies spend many millions of dollars in order to ensure high-quality and effective protection copyright.

Among various tools for protecting an intellectual product, DRM is very popular - it is a technology that allows the copyright holder to control access to the sold product, prevent its illegal copying, transfer, and so on. Unfortunately (or fortunately), the DRM license is not always effective, having both its advantages and disadvantages.

A similar technology is TrustedInstaller, which protects against the deletion of vital files for Windows (description at the link).

DRM is an abbreviation for “Digital Rights Management”, which means digital rights management. This control is implemented in the form of placing various technical means in a DRM-protected product that prevent the illegal disposal of the intellectual property product. Such a “digital lock” in the form of a licensed encrypted key can be very effective; the owner will not be able to copy the purchased digital product, transfer it, sell it, and so on.

The DRM key itself is presented in the form of a complex mathematical code, which is quite difficult to crack (crypto-algorithms are used). It can only be unlocked if you purchase the offered digital product.

DRM functionality

As mentioned above, DRM technology prevents the illegal distribution of copyrighted content, its copying, transmission, and translation into other formats. I realized that this DRM allows you to limit work with the product to the required lines, carry out limited copying, and remotely delete the required file on the user’s device. The possibilities of its functionality are very high.

At the same time, the sword, as usual, has two ends. The disadvantages of DRM include significant restrictions on the use of information, the probable impossibility of any copying at all, instability and unreliability of programs with such protection. Moreover, the principles of DRM sometimes conflict with the laws of some countries (eg Australia).

When is DRM used?

You may encounter DRM protection in different situations. Eg:

• When playing a file, it requires a key in the form of a password, code identifier or a special letter;
• the file is launched only in a specific program;
• the program runs only on a specific device (computer, music center, etc.)
• the number of possible file copies is significantly limited by the DRM license.

What is a DRM license?

A DRM license is a digital key used to decrypt previously encrypted content, while also granting the right to use of this content. You can receive such a key only if you pay for it.

There are also partial DRM licenses in the form of various “trial periods”, a limited trial number of program launches and other types of temporary access to the product’s functionality, after which, after the end of which, access to the program is blocked, and we are offered to buy a full version of the program.

Resetting DRM licenses

Resetting DRM licenses depends on the specifics of each license. Various hacker software allows you to reset the launch counters of DRM-protected files, unlink such files from certain sites, neutralize key verification by the software used, etc.

On Android, you can reset all DRM licenses loaded on your device.

1. To do this, you need to go to “Settings”;
2. Select “Restore and reset”;
3. And then click on “DRMreset”.

You should use this option with extreme caution, because if you purchased a product with this license, then after resetting the DRM settings you will lose access to it. You should use this function in special cases, for example, if you sell your gadget.

How to remove DRM protection

To remove this type of DRM protection, there are various methods. Let's look at some of them:

• special programs, for example, “DRM Media Converter” or “DRM Removal” allows you to remove DRM protection from WMV, M4B, M4V, ASF and other files;
• if WMV and WMA files are protected by DRM, burn WMA to CD and WMV to DVD, and then extract them to your computer, the protection will be removed;
• use the converter to convert protected WMV, WMA and other files to other video and audio formats (use Digital Music Converter, Sound Taxi, Note Burner and others similar programs), after conversion you will get a “clean” file.

You can see an example of how to remove DRM protection from a PDF file in the video:

Conclusion

IN last years Many developers, faced with protests from thousands of users about the inconvenience of DRM protection, are beginning to refuse to use them in their products.

Low cryptographic strength, limited application and many inconveniences imposed on the user have led to the fact that since the beginning of our decade, major players digital market switched to other data protection options (Apple, Sony, etc.). However, today it is clear that this DRM protection is quite common and when downloading any content, be prepared for its limited functionality.

I can advise honest users to purchase licensed products, and lovers of accessibility should pay attention to free alternatives DRM with more simplified functionality.

In contact with

DRM is a protection tool intellectual property, allowing the copyright holder to control access, preventing unauthorized copying and distribution of software. The technology is used on various products, including mobile operating systems, so users periodically have the question of what it is to reset a DRM license on Android.

What is DRM

DRM is an abbreviation for Digital Rights Management, which can be translated as “digital rights management.” Control is implemented by placing various technical means in the product that prevent illegal disposal of the software. The owner can use the protected product only for personal purposes; he will not be able to copy it and sell it. In essence, DRM is a kind of digital lock, the key to which must be purchased from the copyright holder.

The DRM key for gaining access is presented in the form of a code, the creation of which uses cryptographic algorithms. It is very difficult to hack, and you can only get it after purchasing a digital product with a license. On Android technology often implemented like this:

1. A person buys a new device, in which the manufacturer preinstalls a certain software.
2. After turning on and activating the device, the software starts working for free in demo mode. After trial period the application ceases to function, requiring the purchase of a license.

Purchasing access to a full version of the software is an element of DRM. This is just one of possible options, there are other examples of copyright protection.

The procedure for resetting DRM differs depending on what the license covers. For example, using hacker software you can reset the program launch counter, unlink files from the site, turn off key verification, and perform other actions to unlink the license. As for Android, a reset can be done without hacker software.

You must use this feature with extreme caution, because after resetting your license, you may lose access to certain product features. DRM keys needed for work special applications from the phone manufacturer. You can find such programs at Sony devices, Samsung, etc. After resetting the key, branded applications may stop working, but otherwise the functionality of the phone will remain at the same level.

It has nothing to do with giving up a license. If rolling back settings removes all apps from your phone, user installed, as well as personal data, then deleting the license only leads to disabling the software built in by the manufacturer.

If you want to find out what requirements different applications have, what programs will be affected by removing licenses, whether the device supports the technologies that are needed for normal functioning services, then install DRM Info on your mobile device. The application displays information about DRM components, at the same time indicating whether they are supported on devices.
Why is this information needed? To understand whether it is worth buying premium accounts or applications with licenses. For example, to play on Netflix video Full HD and 4K quality requires level 1 of Google Widevine. Most devices come with the third level, therefore, there is no point in spending money on a premium account, because there will be no improvement in quality - the device does not support the necessary technologies.

DRM (Digital Rights Management) is translated into Russian as “ Digital Rights Management" Digital Rights Management technology protects the device from piracy, and also monitors access and distribution of works belonging to copyright holders. This system is like a lock that prevents the user from copying or selling any product. Perhaps highly skilled hackers can crack Digital Rights Management technology, but to the average user It is unlikely that this will be possible. When launched, protected content may display a number of messages similar to “the file is protected using drm technology.”

What functions does it perform?

The DRM system does not allow the user to illegally distribute, copy, transfer and convert copyrighted products into other formats. This is all possible thanks to its functionality, which includes work limitation with content using special strings, in particular the impossibility full copy and remotely deleting a file on the device.

But the technology also has its drawbacks. For example, restrictions on the use of information (any copying is impossible) and the likelihood unstable and unreliable work programs with this protection. In addition, the functionality of the technology in some way contradicts the legislation of some countries of the world, for example, Australia.

It is worth noting that the concept of DRM-free is often found on the Internet. It stands for, literally, as “without DRM”. These are games, applications without protection, and even a certain movement that is trying to resist the widespread licensing of DRM.

In what cases is DRM used?

You can encounter the work of Digital Rights Management protection in the following cases:

• during playback specific file system displays a query to enter a password, identifier or a unique letter;
• launch required file only possible in a specific program;
• a certain program starts working only on a separate device, for example, on a PC, music center, etc.;
• The DRM license is noticeably restrictive number of copies protected file.

DRM license - what is it?

A DRM license is a digital key that is used to decrypt encrypted content. In addition, such a license itself gives the right to use this product. It is possible to obtain such a key only after payment.

In addition, there are partial licenses, which provide a trial period and have limited functionality. For example, it is carried out limited quantity program launches and temporary access to it. At the end of the trial period, the application is blocked and you are offered to purchase the full version.

How to reset a license

The consequences of resetting the DRM depend on the content covered by the license. Resetting DRM licenses will mean that the user abandons the purchased software. For example, using illegal software, you can completely disable the application startup counter. In addition, certain utilities give possibility to break the connection specific files and website, disable the need to verify the license (digital key), etc.

For mobile device on Android you can reset the DRM license without using any third party programs. To do this you need:

This feature should be used with extreme caution, especially if the user is not informed of the consequences. In the event of an incorrect reset or operation with this function, it may result in the user will lose access to some functions and programs in the device memory. In addition, some proprietary programs on Samsung phones and Sony may simply cease to function. But in general, the operation and personalization of the device will not change in any way.

Worth noting that a normal factory reset in the "Backup and Reset" section will not remove the license.

How to remove DRM protection

Currently, many Android users are complaining to developers about the inconvenience of using a digital license. But even despite this mobile applications and multimedia it is still actively used. Let's talk about some ways to remove this protection technology from various types files:

• usage specialized utilities(DRM Removal), which will allow you to bypass and deactivate the protection;
• the use of converters that convert protected files(Note Burner, Sound Taxi). They apply only to certain extensions, but allow you to get a completely clean file;
• use of various CDs and DVDs. Files with the WMV or WMA extension can simply be rewritten to disks and the protection will be removed from them.