How to implement verification code function in easy language program

How to add verification code in Easy Language program

First of all, I want to emphasize that I do not recommend using registration codes for verification, but recommend using network verification. Using network verification can ensure that your game account is safer, more convenient and faster.

Registration code verification can be easily broken.

Let’s talk about the registration process of registration code first:

In order to help players who have not passed the level yet, let us understand the specific steps to solve the puzzle: "User enters the verification code → click the submit registration button → the program generates the registration code → compare the registration codes."

If the comparison is the same, then the registration is successful

Comparison fails, then registration fails

It is an if judgment.

If (registration code = correct registration code)

Registration successful () Otherwise registration failed ()

In the OD debugger, we can perform conditional judgment and execution through a combined jump of a cmp and a jnz instruction. The purpose of this statement is to compare two values, and if they are not equal, perform a jump operation.

cmp compare jnz jump when ZF is not 1

The key is here. The cracker fills out the jnz nop, and there is no such jump. That is, no matter whether the cmp comparison is the same or different, it does not jump to another subroutine. In this way the program is cracked. Or change jnz to jmp with unconditional jump, that is, whether cmp is the same or different, it will jump to the next subroutine. Regarding network verification, you can find it in some large Yi Language forums, such as Jingyi Forum, etc.

Easy Language Verifies MD5 of all files in the folder

.Version 2

.Support library dp1

.Subroutine __start window_created

.Local variable text, text type

.Local variable file name, text type

.Local variable path, text type

.Local variable MD5, text type, , "0"

.Local variable count, integer type

In order to help everyone understand better, let us take a look at the specific steps. First, we need to read the text content from the file. This can be achieved using the following code: ```python with open("D:\modlist.txt", "r") as file: content = file.read() ``` In this code, we use the `open()` function to open the file and pass in the file path and read mode ("r" means read-only). Then, use the `read()` method to read the file contents and save it in

MD5 = split text (text, #newline, )

Path = “D:\bin\MOD\”

To help players find files, we can use the following code: file name = find file (path "*.*"). In this way, all files under the specified path can be found.

.Judge the beginning of the loop (file name ≠ “”)

In order to get the data summary of the file, we can use the following code: `text = get data summary (read in file (path file name))`. This line of code will read the file at the specified path and calculate its data digest.

In order to help players who have not passed the level yet, let us learn about the specific puzzle solving methods. First, we need to perform a counting loop, use the number of array members (MD5) to determine the number of loops, and then perform corresponding operations based on the counting. Hope this tip can help everyone.

.if true (MD5 [count] = text)

Break out of the loop ()

.If it really ends

.Counting loop end ()

.If true (count > get the number of array members (MD5))

The information box displays: "The MD5 code of the file name was not found" #Error icon

Finish ()

.If it really ends

File name = Find file (, )

.Judge the end of the loop ()

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