How To Crack Irdeto 2 Encryption Code

As @ArtjomB notes, you would keep the key safe by not putting it into your program. During startup, an authorized user or security device will need to provide the key. Anything that doesn't look like that is no longer encryption or security, it's some form of obfuscation. Obfuscation (or 'DRM') can be somewhere between useless and somewhat effective depending on how much effort you're going to put into it versus how much interest there is in cracking it. What's your ongoing budget for improving this as new attacks come along?

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What is the sophistication of your expected attackers? Apple (as one example) controls their hardware, firmware, and OS very tightly, and has a team entirely devoted to constantly improving that. The iPhone is generally jailbroken within a few weeks to months after new releases. You should consider that the best case scenario for an attractive target.

If you're thinking 'well, what can I put together in an afternoon that will stop the ankle biters?' Do whatever comes to mind. XOR it with some other hard-coded value.

Maybe bitshift it or whatever. It won't help very much against anyone who cares, but it'll stop the most casual attacker, and at least you won't waste a ton of time and money on it. Stepping up from that, look at your platform's built-in solutions. OS assistance is a big help. In particular, look at on Windows. Mac provides licensing enforcement if you work through Mac App Store. Or you can look at commercial vendors like eSellerate who have their own proprietary solutions.

Of course all of these can be (and regularly are) defeated. But they're much stronger than whatever you're going to develop over a few days. Programma kognitivnoj reabilitacii.

Any specific approach you get off of StackOverflow will be, by definition, useless. The only thing obfuscation has going for it is that its details are secret.

Here is a brief CBROM parameters cheatsheet. You cannot get some of them using cbrom /? Some of the lines are taken from cbrom /? Output, some from other sources, like Practical BIOS Editing by Polygon. Dash '-' means range of digits (you need only one),| means OR (choose one of the sides). Cbrom.exe Page 1. BIOS ROM Combination Utility. This manual briefly discusses Cbrom, the Award BIOS ROM Combination utility, with instructions to guide you through combining third-party firmware with the Award BIOS in a file format for flash memory chips. Cbrom supports 1-MB and 2-MB flash memory file formats. Chrome bios.

If you know how it works, then you can beat it. That's what differentiates it from encryption.

Good encryption is designed to be just as strong even if the attacker knows the entire algorithm. That's why obfuscation techniques are proprietary. They pretty much have to be. Which means you're either going to (a) quickly build a lousy one, (b) spend a lot of time and money building a slightly-less lousy one, or (c) spend quite a lot more money to get a somewhat-passable one from a vendor who specializes in these things. (If you're asking this question on StackOverflow, there is absolutely no chance you are going to build a good one on your own. If you haven't cracked a few programs yourself, you're in no position to build something to stop others.). It can't be done.

For most cases what you can do is to mangle your key, break in words, split, mix, bitshift, xor, etc, etc. To make it harder. But nothing can prevent a very motivated hacker to reverse engineer your code and get the key. The best solution for this case is called White Box Cryptography: The idea is kind of generating a binary code personalized for your encryption that replaces your function decrypt(cypher, key) by whitebox_decrypt(cypher) both returning the same result. The second function whitebox_decrypt does NOT contain the key itself, but a personalized algorithm that brings the same result as the original decryption function.

Again: IT CAN BE REVERSE ENGINEERED as everything, but it's so so hard that really doesn't motivate anybody to do so. However, this is something that is usually very expensive. I don't know any good thing for free. It's very used for protecting DRM content.

VideoGuard (sometimes referred to simply as NDS), produced by, is a digital system for use with television broadcasting. It is used on digital systems - some of which are operated by, which owned about half (49%) of NDS until its sale to in 2012. Its two most widely used implementations are 's in the and and in the, the former of which launched the digital version of the system in 1998. Several other broadcasters around the world use the VideoGuard system, including,,,, (Scandinavia), (Italy), (Brazil), (New Zealand), (Australia), (India), & () (India), (Malaysia), (Thailand), (Turkey), (Balkan),, (Canada), (China), (Serbia), (Germany), (Bulgaria), (Romania), / (Asia), (Philippines), (Indonesia), (Italy), (Kazakhstan), (Greece), (Brazil). Since the majority of content provided by companies like BSkyB requires subscription, VideoGuard protects that content by encrypting both standard subscription channels and movies and events.