1 1 00:00:00,000 --> 00:00:03,150 DRM and Watermarking, 2 2 00:00:03,150 --> 00:00:04,920 in this lesson, we are going to talk 3 3 00:00:04,920 --> 00:00:07,770 about digital rights management and watermarking 4 4 00:00:07,770 --> 00:00:09,180 and why these are important. 5 5 00:00:09,180 --> 00:00:10,350 Now, in a lot of things 6 6 00:00:10,350 --> 00:00:11,940 we want to be able to protect our data 7 7 00:00:11,940 --> 00:00:13,920 and DLP systems are great for that. 8 8 00:00:13,920 --> 00:00:16,410 It can help protect things from leaving our network. 9 9 00:00:16,410 --> 00:00:19,620 But in some companies, our product has to leave the network 10 10 00:00:19,620 --> 00:00:21,270 and our product is digital. 11 11 00:00:21,270 --> 00:00:24,030 For instance, right now you're watching this course. 12 12 00:00:24,030 --> 00:00:26,010 This product is a digital product 13 13 00:00:26,010 --> 00:00:27,450 and it has to use DRM, 14 14 00:00:27,450 --> 00:00:29,640 digital rights management to protect our product 15 15 00:00:29,640 --> 00:00:32,970 because otherwise the product itself is very easy to copy. 16 16 00:00:32,970 --> 00:00:35,400 If you look at any kind of movie or music, 17 17 00:00:35,400 --> 00:00:36,960 you can find torrents online 18 18 00:00:36,960 --> 00:00:39,000 that illegally allow you to download them; 19 19 00:00:39,000 --> 00:00:40,440 that's what people are trying to fight 20 20 00:00:40,440 --> 00:00:43,380 when you start talking about DRM and watermarking. 21 21 00:00:43,380 --> 00:00:45,360 Now, when we deal with Digital rights management 22 22 00:00:45,360 --> 00:00:48,390 or DRM these are copyright protection technologies 23 23 00:00:48,390 --> 00:00:51,000 for digital media, which attempts to mitigate the risk 24 24 00:00:51,000 --> 00:00:53,430 of unauthorized copies being distributed. 25 25 00:00:53,430 --> 00:00:54,900 Essentially, you're a movie studio 26 26 00:00:54,900 --> 00:00:56,700 and you don't want the latest copy of Batman 27 27 00:00:56,700 --> 00:00:58,170 to be released to everybody in the world. 28 28 00:00:58,170 --> 00:00:59,580 You want to sell it in theaters 29 29 00:00:59,580 --> 00:01:00,690 so you can make money off of it 30 30 00:01:00,690 --> 00:01:03,390 because you invested a lot of money building that thing 31 31 00:01:03,390 --> 00:01:05,400 and so that's what DRM is all about. 32 32 00:01:05,400 --> 00:01:08,280 Now, DRM can be implemented in two different ways. 33 33 00:01:08,280 --> 00:01:09,630 You can use a hardware approach, 34 34 00:01:09,630 --> 00:01:11,220 or a software approach. 35 35 00:01:11,220 --> 00:01:12,900 If you're using a hardware approach, 36 36 00:01:12,900 --> 00:01:15,630 this might require you to have an authorized player. 37 37 00:01:15,630 --> 00:01:17,640 For instance, I can't take a PlayStation game 38 38 00:01:17,640 --> 00:01:19,920 and play it on something that's not a PlayStation. 39 39 00:01:19,920 --> 00:01:22,620 Those are required to be played on that player. 40 40 00:01:22,620 --> 00:01:24,600 The same thing happened in the early days of DVDs. 41 41 00:01:24,600 --> 00:01:25,890 They were region coded. 42 42 00:01:25,890 --> 00:01:28,440 If I bought one for America, I couldn't play it in Asia. 43 43 00:01:28,440 --> 00:01:31,020 If I bought one in Asia, I couldn't play it in America. 44 44 00:01:31,020 --> 00:01:33,240 Those had to be played on an authorized piece of hardware. 45 45 00:01:33,240 --> 00:01:34,830 Now, on the terms of software, 46 46 00:01:34,830 --> 00:01:37,950 a lot of times this will be done based on a software viewer. 47 47 00:01:37,950 --> 00:01:39,480 If you bought the digital textbook 48 48 00:01:39,480 --> 00:01:41,010 for this course from CompTIA. 49 49 00:01:41,010 --> 00:01:43,590 You have to look at it through their software viewer 50 50 00:01:43,590 --> 00:01:45,270 which happens to be a website. 51 51 00:01:45,270 --> 00:01:47,160 This allows them to prevent copying 52 52 00:01:47,160 --> 00:01:48,540 and being able to send it across 53 53 00:01:48,540 --> 00:01:50,790 to all different devices across the internet 54 54 00:01:50,790 --> 00:01:52,860 so they can sell that product and keep making money 55 55 00:01:52,860 --> 00:01:54,600 because that's part of their business model 56 56 00:01:54,600 --> 00:01:55,433 is making money 57 57 00:01:55,433 --> 00:01:57,540 because they invested, you know, tens and thousands 58 58 00:01:57,540 --> 00:01:58,470 and hundreds of thousand dollars 59 59 00:01:58,470 --> 00:02:00,750 in making this book and making this textbook 60 60 00:02:00,750 --> 00:02:02,640 and they don't want to just give it away for free. 61 61 00:02:02,640 --> 00:02:04,649 They need to be able to recoup the money they spent 62 62 00:02:04,649 --> 00:02:07,470 and be able to pay their authors and things like that. 63 63 00:02:07,470 --> 00:02:09,780 So there are different security mechanisms in place, 64 64 00:02:09,780 --> 00:02:11,310 whether their hardware or software 65 65 00:02:11,310 --> 00:02:13,380 and DRM will use both of those. 66 66 00:02:13,380 --> 00:02:15,150 Now, the other way we can protect our content 67 67 00:02:15,150 --> 00:02:16,680 is doing watermarking. 68 68 00:02:16,680 --> 00:02:19,320 Now, watermarking is a method and technology 69 69 00:02:19,320 --> 00:02:21,570 that applies a unique anti-tamper signature 70 70 00:02:21,570 --> 00:02:24,330 or message to a copy of a document. 71 71 00:02:24,330 --> 00:02:26,760 For instance, when I go and make these courses, 72 72 00:02:26,760 --> 00:02:28,260 we go out and try to find images 73 73 00:02:28,260 --> 00:02:29,760 that would look good for you to be able 74 74 00:02:29,760 --> 00:02:31,290 to see the points we're trying to make. 75 75 00:02:31,290 --> 00:02:33,180 So I might get a picture like this. 76 76 00:02:33,180 --> 00:02:34,560 Now, notice there's a big watermark 77 77 00:02:34,560 --> 00:02:36,150 across the center, Shutterstock, 78 78 00:02:36,150 --> 00:02:37,410 that's who we buy it from. 79 79 00:02:37,410 --> 00:02:39,780 Now, if you don't buy the image, you have this big watermark 80 80 00:02:39,780 --> 00:02:40,920 and it's illegal to use. 81 81 00:02:40,920 --> 00:02:42,350 Now, in this case, I've bought this image, 82 82 00:02:42,350 --> 00:02:43,710 so I'm allowed to use it. 83 83 00:02:43,710 --> 00:02:45,780 Now, when I buy the image, I'm allowed to download it 84 84 00:02:45,780 --> 00:02:47,970 without the watermark and it looks like this. 85 85 00:02:47,970 --> 00:02:49,170 So it's the exact same image. 86 86 00:02:49,170 --> 00:02:51,990 There's just this big word right across the center of it. 87 87 00:02:51,990 --> 00:02:53,610 One of the companies I work with, Axelos, 88 88 00:02:53,610 --> 00:02:55,530 they do the same thing with their textbooks. 89 89 00:02:55,530 --> 00:02:57,720 We as partners who make courses for them 90 90 00:02:57,720 --> 00:02:59,400 get advanced copies of the textbook. 91 91 00:02:59,400 --> 00:03:01,080 When they send that to us as a PDF, 92 92 00:03:01,080 --> 00:03:03,270 there's a big thing across the center that says, 93 93 00:03:03,270 --> 00:03:05,400 not for redistribution, for partner use only, 94 94 00:03:05,400 --> 00:03:06,540 and it has my name 95 95 00:03:06,540 --> 00:03:09,180 on every single page of the 400 pages of the textbook. 96 96 00:03:09,180 --> 00:03:11,490 So if that got out online, they can then say, 97 97 00:03:11,490 --> 00:03:13,860 ah Jason gave away our textbook for free, 98 98 00:03:13,860 --> 00:03:15,300 let's sue Jason. 99 99 00:03:15,300 --> 00:03:16,133 That's the idea here 100 100 00:03:16,133 --> 00:03:17,610 when you start dealing with watermarking. 101 101 00:03:17,610 --> 00:03:20,430 Now, it doesn't have to be in your face like this though. 102 102 00:03:20,430 --> 00:03:22,380 It can also be a forensic watermark. 103 103 00:03:22,380 --> 00:03:24,810 Now, a forensic watermark is a digital watermark 104 104 00:03:24,810 --> 00:03:26,790 that can defeat attempts at removal 105 105 00:03:26,790 --> 00:03:29,310 by cropping pages or images in the file. 106 106 00:03:29,310 --> 00:03:31,890 Essentially, it's a small hidden thing that you 107 107 00:03:31,890 --> 00:03:34,232 can't really see, or it can just be a couple 108 108 00:03:34,232 --> 00:03:36,990 of bites of code that are in the file itself. 109 109 00:03:36,990 --> 00:03:39,537 So you might have a PDF and you take that PDF 110 110 00:03:39,537 --> 00:03:41,700 and you don't see anything that's on a watermark 111 111 00:03:41,700 --> 00:03:44,160 and so it looks like a real official copy of a textbook. 112 112 00:03:44,160 --> 00:03:45,870 But when you send that out, 113 113 00:03:45,870 --> 00:03:48,570 it automatically embeds your IP into it 114 114 00:03:48,570 --> 00:03:51,300 or it embeds some kind of signature that identifies you 115 115 00:03:51,300 --> 00:03:53,370 or it identifies the person who made it 116 116 00:03:53,370 --> 00:03:56,340 and so they can tell who owns that file originally. 117 117 00:03:56,340 --> 00:03:57,810 There's lots of different ways that you can do 118 118 00:03:57,810 --> 00:03:59,490 this when you're dealing with forensic watermarks, 119 119 00:03:59,490 --> 00:04:02,430 but just keep in mind that this is a valid solution 120 120 00:04:02,430 --> 00:04:04,260 for some of your corporate documents 121 121 00:04:04,260 --> 00:04:05,610 if you're trying to protect them 122 122 00:04:05,610 --> 00:04:07,983 and you want to go beyond just using DLP.