"300 points" to find a PHP decryption algorithm

"300 points" to find a PHP decryption algorithm

Previously collected a station recent contact with pictures to generate, resulting in contact methods can not be collected.

http://www.guijob.com/securite.php?contact= AQUACHWGAASABAQL
Output to picture content: 0773-2181632

http://www.guijob.com/securite.php?contact= AQUACHW
Output to picture content: 0773-

More information can be found on this page: http://www.guijob.com/display/jobs/87859.htm

The content should be the red part, just be confused, you can enter the letter randomly will get different picture content

PHP knows only fur and does not know how to decrypt it.


Because in the PHP forum level is not enough, can not send 300 points of the post, I will slowly add to, do not send another 2 100 points to provide ideas for children's shoes

Reply to discussion (solution)

Save pictures directly to the database?

Sometimes two letters represent a number, sometimes one, two letters have different combinations can also represent a number
If the input is repeated separately adadad this way, the result is not a sequential number
If you enter the back half of the password, the output is not the back half of the data, but other data
Brute force hack doesn't seem too good to do, not a cipher list, a solution algorithm

This one... Who knows how to encrypt it? It takes an experienced talent to see it. Call Moderator

Instead of taking the effort to solve the encryption method, the image recognition rate is 100% ...

Other people's encryption algorithm unless it is simple to write, if you want to easily solve it is not easy.

It seems to have been identified by the number of digits in the pit.
AQUACHWBCQQDCW4J is 0773-5872990.
AQUACAQBCQQDCW4J is 077155872990.
6th, the 7-bit lowercase hw can become a dash, but it will also affect the previous number, but will not affect the back

Test a few, it should be the ASCII action, but I am not good at encryption and decryption.

Provide the following ideas to see if there are any math experts to find out the law.

Landlord provides: AQUACHW, the corresponding result is 0773-
I try to get rid of W and try to Aquach, getting the result 0773
But enter a single w, what results are not, visible w!==-

So I think he's probably dealing with it as a whole.

For Aquach, the corresponding ASCII is 65 81 85 65 67 104

I think he might have put this number in the first place by combining it with the calculation method, and then get the number 0773. And I'm sure that this conversion will also get the ASCII code to find the corresponding character, because there are more than numbers, there are some special characters.

Instead of taking the effort to solve the encryption method, the image recognition rate is 100% ...

Other people's encryption algorithm unless it is simple to write, if you want to easily solve it is not easy.

This method is feasible, find the locomotive has this configuration no, hey.

No, you can only store encrypted strings and download images in other languages to identify them. (???)?

Have studied ....

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