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This tool is one of the best tools for protecting files in .net
Features:
Symbol Renaming:
Crypto Obfuscator renames all your class, field, method, properties, methods, parameter and generic parameter names to totally different strings. It is impossible to determine the original names from the new names. This makes it impossible for someone to try to determine the purpose or functionality of the renamed entity from its name.
Advanced Overload Renaming:
Crypto Obfuscator can also rename fields or methods with different signatures to the same name. For example two fields having types int and boolean will be given the same name. Similarly two methods will different parameters will be given the same name. In the case of methods, the method return type is also used in the signature even though high-level languages such as C# and VB.Net do not support overloading by return type. The .Net runtime is able to differentiate between the fields/methods without any problem since the signatures are different. Needless to say, this scheme makes it even harder to reverse-engineer your code.
Advanced Tamper Detection:
Crypto Obfuscator renames the names of the classes, methods, properties, fields, events, etc in your .Net assembly to a garbled unintelligible name. Depending on the symbol renaming scheme chosen, this will result in either very long or very short names which have no relation to the original names. The original names cannot be derived or guessed from the obfuscated names. Since meaningful names are the most powerful ally when reverse-engineering a software, this makes it very hard to determine the purpose and function of the renamed entity.
Advanced Anti-Debug + Anti-Tracer Protection:
Crypto Obfuscator's performs more than 10 advanced heuristic tests to detect if your software is running under a debugger or tracer. If detected, an exception is throw and your software will terminate. Both managed as well as native/unmanaged debuggers (including advanced debuggers such as OllyDbg) are detected. This provides a strong defense against crackers and hackers trying to debug or trace your software for various malicious purposes.
String Encryption:
Literal strings often contain sensitive information such as login information, passwords, SQL queries, algorithm parameters. They also facilitate reverse-engineering of your .Net code. Crypto Obfuscator solves all these issues by encrypting all literal strings in your .Net code.
Control Flow Obfuscation:
Many advanced decompilers can reconstruct the code in your methods including the exact structure of your loops, if-else statements, method calls, try-catch blocks, etc. This makes it very easy to revere-engineer your code. Crypto Obfuscator changes the structure of your code into spaghetti code while maintaining 100% the logic and output of the code. The result is that decompilers are unable to reconstruct the code structure and most of the times they crash while trying to do so.
ILDASM Protection :
ILDASM (Microsoft IL Dissassembler) is a free tool to disassembly any .Net assembly into MSIL (Microsoft Intermediate Language). Crypto Obfuscator can modify the assembly in such a way that ILDASM refuses to disassemble the assembly.
Anti-Reflection Protection:
Many decompilers, dissassemblers and memory dumpers use Reflection to extract information about a .Net assembly. Crypto Obfuscator can modify the assembly in such a way that such tools will fail when trying to work on your assembly.
Anti-Decompiler Protection:
Advanced decompilers such as the freely available .Net Reflector are your enemy in the battle against the hackers, crackers and competitors. Crypto Obfuscator can modify your assembly in such a way that such tools fail to work on your assembly - many times they are not even able to open your assembly, let alone examine it.
Resource Encryption & Compression:
Many tools exist which can extract resources from your assembly. Such resources can often contain valuable, sensitive or copyrighted information such as images, UI (WPF BAML files), textual content, etc. Crypto Obfuscator can encrypt all such resources so that it is impossible to extract them from the assembly.
Assembly Embedding, Encryption & Compression(BEST-BEST-BEST):victory:
Crypto Obfuscator can encrypt all dependant assemblies and any additional assemblies you want into a single assembly. This makes it impossible for someone to get their hands on individual assemblies. You can use this feature to package all important and sensitive code/data into another assembly.
Watermarking:
Crypto Obfuscator can embed watermark strings into your deployed assemblies. This can be used to track each assembly instance - this is commonly used for licensing by embedding user name and license codes as watermarks to deter license violations. The watermarks embedded in the assembly can be used in literal strings and constants to be used in your UI, message boxes, etc.
Metadata Reduction:
Crypto Obfuscator can remove unnecessary or redundant information such as parameter names, property/event placeholders, etc from your .Net assembly . During symbol-renaming, Crypto Obfuscator will often assign extremely short (often single-character names) to your classes, fields, methods, etc. All these features can reduce the size of your .Net assembly considerably.
Duplicate String Elimination:
Crypto Obfuscator can eliminate duplicate uses of the same string literal and replace them with one instance of the string. This reduces the size of your assemblies.
Runtime Performance Optimizations
Crypto Obfuscator can do certain changes to your assemblies which result in runtime performance improvements.
发表于 2009-10-5 15:17
发表于 2009-10-5 21:13
