Shulou(Shulou.com)06/03 Report--

This article introduces the relevant knowledge of "how to understand the result link?url= parameters". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

The results are as follows:

1. The encryption method is based on random + input residence time + snapshot address.

2, there should be three parts in the whole code: 1, the time of the search word; 2, the keyword of the search; 3, the randomly generated unique identification code.

3. In any environment or browser, url= ends up with a similar code

From the above results of other people's research, we can see that "finally there is a similar piece of code" is more useful, so start from here.

I searched "enenba" and found that the URL of my first search result had the same code, that is

Http://www.baidu.com/link?url=. Ebac5573358cc3c0659257bfcf54763ec1c5ecff3b3fbd1d4c

All search results have a code ebac5573358cc3c0659257bfcf54 (found after N searches)

The 763ec1c5ecff3b3fbd1d4c at the end looks like the real URL of the search results. (ciphertext that has been verified to be real URL)

Here's how I verify it:

1. Search www.php100.com for Baidu first.

The first result link:

Http://www.baidu.com/link?url=. Ebac5573358cc3c0659257bfcf546427d385fef6656de2404d6843da27

See the 6427d385fef6656de2404d6843da27 in front of you

2. Search for www.hao123.com on Baidu.

The first result link:

Http://www.baidu.com/link?url=. Ebac5573358cc3c0659257bfcf54 6427d385e6ff7a6de0434d6843da

See the 6427d385e6ff7a6de0434d6843da in front of you

……

After searching N websites for many times, it is found that the first few places of the domain name are "www." Yes, the ciphertext is all 6427d385

And www. Is four characters, ciphertext 6427d385 is eight characters. You can know that two characters of ciphertext are equal to one character of url.

So I wrote a php form query and got the ciphertext section for later viewing.

Give a php source code:

The copy code is as follows:

Query Baidu link?ulr= real link form

Last online example: slam test

We'll study it tomorrow, to be continued.

This site states in advance: I did not publish the article on cnbeta. My analysis is only based on my own ideas for research, just for a process, as for whether there is a result, I have my own conclusion, let's stop spurting.

Following the previous article, I carefully looked at the long code of Baidu's result url and found that there were only numbers and a to f letters in the ciphertext, which is the hexadecimal code.

Hexadecimal is from 0-> 1-> 2-> 3-> 4-> 5-> 7-> 8-> 9-> a-> b-> c-> d-> e-> f.

I collected a series of url and counted the first code.

Ebac5573358cc3c0659257bfcf54XX.

The url corresponding to the code XX is like this.

The copy code is as follows:

33 0 23 @ 13 P 03 `73 p 63

! 32 1 22 A 12 Q 02 a 72 q 62

"31 2 21 B 11 R 01 b 71 r 61

# 30 3 20 C 10 S 00 c 70 s 60

$37 4 27 D 17 T 07 d 77 t 67

36 5 26 E 16 U 06 e 76 u 66

& 35 6 25 F 15 V 05 f 75 v 65

'34 7 24 G 14 W 04 g 74 W 64

(3b 8 2b H 1b X 0b h 7b x 6b

) 3a 9 2a I 1a Y 0a I 7a y 6a

* 39: 29 J 19 Z 09 j 79 z 69

+ 38; 28 K 18 [08 k 78 {68

, 3f

< 2f L 1f \ 0f l 7f | 6f - 3e = 2e M 1e ] 0e m 7e } 6e . 3d >

2d N 1D ^ 0d n 7d ~ 6d

/ 3c? 2c O 1c _ 0c o 7c 6c

It is found that it should be a character in an ascii code table, but the order should be confused. But it's all like this. It's all like this in a system:

3-> 2-> 1-> 0-> 7-> 6-> 5-> 4-> b-> a-> 9-> 8-> f-> e-> d-> c

Four digits in a descending order, we can see that the overall is decreasing.

But what is puzzling is that 0c and 73 jump from _ to `which are adjacent to each other in ascii. I can't help it. I can't see the rule. let's take a look at the second code.

Ebac5573358cc3c0659257bfcf54XXYY .

The url corresponding to the code YY is like this.

The copy code is as follows:

70 0 60 @ 50 P 40 `30 p 20

! 71 1 61 A 51 Q 41 a 31 q 21

"72 2 62 B 52 R 42 b 32 r 22

# 73 3 63 C 53 S 43 c 33 s 23

$74 4 64 D 54 T 44 d 34 t 24

75 5 65 E 55 U 45 e 35 u 25

& 76 6 66 F 56 V 46 f 36 v 26

'77 7 67 G 57 W 47 g 37 W 27

(78 8 68 H 58 X 48 h 38 x 28

) 79 9 69 I 59 Y 49 I 39 y 29

* 7a: 6a J 5a Z 4a j 3a z 2a

+ 7b; 6b K 5b [4b k 3b {2b

, 7c

< 6c L 5c \ 4c l 3c | 2c - 7d = 6d M 5d ] 4d m 3d } 2d . 7e >

6e N 5e ^ 4e n 3e ~ 2e

/ 7f? 6f O 5f _ 4f o 3f 2f

The secret text of the second group follows the order of hexadecimal increment.

0-> 1-> 2-> 3-> 4-> 5-> 7-> 8-> 9-> a-> b-> c-> d-> e-> f

On the whole, it is decreasing.

Let's look at the third group.

Ebac5573358cc3c0659257bfcf54XXYYZZ .

The url corresponding to the code ZZ is like this.

The copy code is as follows:

84 0 94 @ a4 P b4 `c4 p d4

! 85 1 95 An a5 Q b5 a c5 q d5

"86 2 96 B a6 R b6 b c6 r d6

# 87 3 97 C a7 S b7 c c7 s d7

$804 90 D a0 T b0 d c0 t d0

81 591 E A1 U b1 e c1 u d1

& 82692 F a2 V b2 f c2 v d2

'83 7 93 G a3 W b3 g c3 w d3

(8c 8 9c H ac X bc h cc x dc

) 8b 9 9b I ab Y bb i cd y dd

* 8e: 9e J ae Z be j ce z de

+ 8f; 9f K af [bf k cf {df

, 88

< 98 L a8 \ b8 l c8 | d8 - 89 = 99 M a9 ] b9 m c9 } d9 . 8a >

9a N aa ^ ba n ca ~ da

/ 8b? 9b O ab _ bb o cb db

No, explain the above order:

4-> 5-> 6-> 7-> 0-> 1-> 2-> 3-> 4-> c-> b-> e-> f-> 8-> 9-> a-> b

The overall situation is incremental.

We haven't looked at the following digits, but we can probably know whether it is a four-digit hexadecimal confusion, and it takes a certain amount of data to judge whether it is increasing or decreasing.

Next time, 1000 pieces of url data were collected to judge.

This is the end of "how to understand the result link?url= parameters". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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