Decompile Delphi
Section 1 About Reverse Engineering
Decompile? Reverse? Decrypt? (Decompilation? Reverse? Cracking?)
Simply put, decompilation is the reversal of the compilation process: translating an executable file into a higher-level language. If you have lost the source program of your Delphi project and only have the executable file: reverse engineering (decompiling) is useful if the source program is no longer available.
Yeah, "the source program is not available", does this mean that we can decompile Delphi projects developed by other programmers? Well, right or wrong...
Is true decompilation possible? (Is true decompilation possible?)
No, of course not. Fully automated decompilation is impossible—no decompiler can correctly reconstruct the original code.
When a Delphi project is compiled and linked to produce a stand-alone executable file, most of the names used in the program are converted into addresses. The loss of names means that the decompiler must create unique names for all constants, variables, functions, and procedures. Even if decompilation is successful to some extent, the resulting "source code" still lacks the original meaning of variable and function names.
It is obvious that the syntax of the original programming language no longer exists in the executable file. Therefore, it is very difficult for the decompiler to translate the continuous machine language instructions of the executable file and determine the original language instructions.
Why and when to use. (Why and when to use.)
Reverse engineering is used for several reasons:
Is this legal? (Is this legal?)
Reverse engineering is not decryption, although it is difficult to draw a clear line between the two. Computer programs are protected by copyright and trademark laws. Different countries have different interpretations of copyright owners' rights. The most common explanation is that decompilation is OK under the following circumstances:
For the purpose of better explanation, but the interface description is no longer available; For the purpose of correction of errors, but the copyright owner cannot make the correction; For the purpose of determining whether part of the program is protected. Of course, if you are not sure whether you are allowed to disassemble the executable files of certain programs, you should be careful or contact your attorney.
NOTE: If you are looking for how to hack Delphi, a key generator or just a serial number: you are looking in the wrong place. Please ensure that everything you write or present here is for research and educational purposes only.