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First, briefly clarify the difference between symmetric encryption and asymmetric encryption: Symmetric encryption: that is, the same key is used for encryption and decryption; Asymmetric encryption: two keys are generated. The public key is used for encryption and the private key is used for decryption; Note: the encryption operation in this ...

Encryption and decryption is nothing more than ensuring data security. Three problems need to be solved to ensure data security: Confidentiality, integrity, authentication (anti forgery and denial) Confidentiality: the transmission content is not in clear text. Even if the data is intercepted by the outside world, it cannot be interprete ...

Statement: the series is first official account: Xuan Xuan is safe, please indicate the source of the reprint. The contents of this official account are only used for technical discussions among network fans. All penetration and use of tools need authorization, and no use of illegal channels. Otherwise, the official account and author will not ...

The first "Hecheng Cup" Henan Hebi CTF network security challenge Official account: Th0r security 1 $ tshark -r timu.pcapng http|grep ' GET ' > timu-get $ for i in `seq 1 30`; do a=`grep "),$i,1)" timu-get|tail -1|cut -d= -f3|cut - d- -f1`;b=`printf "%x" $a`;echo -n $b; done 666c61677b77317265736841524b5f657a5f31736e74697 ...

target The goal of this experiment is to modify the TextView directly. Exe file to automatically load myhack at run time. DLL file. TextView.exe TextView.exe is a very simple text viewer that allows you to view the contents of a text file by dragging it (Drop) with the mouse. View TextView using the PEView tool. IDT of exe executable (Imp ...

upload.test Pass-01 Delete the check method return checkFile(). If the browser does not allow you to modify the front-end code, use the packet capture tool to modify it Then upload a sentence Pass-02 Back end verification content type Change the typege to image/jpeg Pass-03 php:: D ...

Recently, my test virtual machine was a little abnormal. I found a strange process named vp0erom, which has a particularly high cpu occupancy. So I tossed and analyzed it, trying to find out the reason. After looking at the ip connected to the process, I knew it was a mining virus. The following is a simple analysis process. 1. The top comma ...

1, Authorization 1. Grant roles to users ① Get the account ② Get the granted role through the user account ③ Give these roles to shiro for management 2. Grant permissions to users ① Get the account ② Get the visible granted permissions through the user account ③ Give these permissions to shiro for management First, in shirousermapper N ...

1, Foreword Tiktok volcano volcano volcano is a small video. It is understood that the volcanic video has been upgraded to the tiktok version. It is necessary to upgrade its security measures. The author studied the equipment registration method of the flare volcano version, which is to generate device_. Tiktok can make nothing of it. It is pos ...

preface The front desk arbitrary file upload vulnerability of X micro e-office has been exposed for some time, and the related vulnerability exploitation scripts or even vulnerability batch exploitation scripts There are also many. Here, analyze this vulnerability point according to the system code and POC. Locate vulnerability points Accor ...