Chiang has shared many of the free SSL security certificate applications and installations in previous posts, although most of the installations are based on VPS and server deployments. Due to the company's project needs in the recent period of time will be unstable overseas VPS, server sites are required to relocate to a better speed of the Asian node virtual host, and some sites have used SSL security certificate.
But fortunately, most of the virtual hosts are currently using the Cpanel panel
Most of us use cloud storage services like Dropbox, gdrive or copy to use synced files from any of our devices, anytime, anywhere. But no one will be relieved to put their sensitive data on the cloud storage platform. Recent hacking events have shown how insecure our data is. In 2014, many celebrity photos were leaked from cloud storage platforms and posted on social networking sites. So, why not encrypt the data before uploading it to the cloud stora
Linux Nginx Website: Certbot installation configuration lets Encrypt SSL free HTTPS encryption certificateOriginal address: https://renwole.com/archives/157
Lab Environment: CentOS Linux Release 7.2Kernel version: Linux version 3.10.0-514.26.2.el7.x86_64Nginx version: Nginx-1.13.0
Let's encrypt is a free, automated, open certification authority. Sponsored by many companies and organizations su
I heard that let's encrypt has already started public beta, so immediately began to try. Let's Encrypt is a new digital certification authority that automates the process of eliminating the complexity of creating and installing certificates, and provides free SSL/TLS certificates for websites.
The following is the process of using Let's Encrypt:
Get the client
Office software is perfect for security because it's office software, so it's often possible to design company secrets and privacy. Therefore, Microsoft in the development of each version of Office will have the ability to encrypt files, previously mentioned word encryption techniques, we remember. Let me tell you today how to encrypt Excel forms. Many netizens may have already, but in order to help some ju
How do you encrypt Excel tables? In the day-to-day office, we sometimes encounter the need to encrypt some documents, files, and so on, where the small series on the spreadsheet encryption method to do a simple introduction. First Excel version is not the same, there may be some different places, but overall is still the same, you can look for other versions of the method, then the Excel table How to
Original source: http://blog.csdn.net/dba_huangzj/article/details/38063823, featured catalogue:http://blog.csdn.net/dba_huangzj/article/details/37906349 No person shall, without the consent of the author, be published in the form of "original" or used for commercial purposes, and I am not responsible for any legal liability. Previous article: http://blog.csdn.net/dba_huangzj/article/details/38037457 Objective: Between SQL Server and the client, data and SQL queries are transmitted as a network p
Encryption | data | Introduction to Algorithms
First, a brief introduction to the background of encryption. Because the United States prohibits several cryptographic algorithms from exporting encrypted digits (such as SSL's 40-bit encryption limit), this article describes a simple character encryption algorithm that an ASP can use, rather than a restricted encryption algorithm. In fact, the encryption algorithm introduced here for the general application is enough to decrypt people for a while.
The most reliable way for a Web site to encrypt data in case it is stolen is to encrypt it using a public key encryption algorithm, which is used throughout the transmission and can be implemented for HTTP sites that do not use HTTPS.
Function description
Because HTTP is the direct transmission of plaintext data, in the increasingly serious network security today, unencrypted HTTP way has become precariou
Encrypt encrypted messages sent externally
I have modified the previous GetXmlDocument method so that it can use the X.509 asymmetric encryption technique implemented by WSE. Encrypted response message, the Findcertificatebysubjectstring method can be used to receive a public backup of the client certificate, a client certificate from a personal storage room from the local machine account. This certificate is then used to create a new X.509 security
Transferred from Wang Zhongzhou's personal blogAbout SQLiteSQLite is a lightweight, cross-platform, open-source database engine that has the advantage of read-write efficiency, total consumption, latency, and overall simplicity, making it the best solution for mobile platform databases (such as iOS, Android). However, the free version of SQLite has a fatal disadvantage: encryption is not supported. This results in the data stored in SQLite can be seen by anyone using any text editor. For example
Article Title: teaches you how to encrypt Ubuntu system files. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
When Ubuntu Linux uses an encrypted file system, data security can be well protected. In this case, even if we send our machines to hackers, as long as they do not have a key, the data they see will only b
This article describes how to use base64 to encrypt and decrypt an image in php.
The code is as follows:
// File name: base64.php$ Data = "/9j/4 users/users // users/j5 + users + Tl5ufo6ery8/T19vf4 + fr/2 gAMAwEAAhEDEQA/users // AJ/J/wDvs0AI2qX/APz + z/Jun/DQBE2sakOl/cf9/Jun/6CgBdK0q41QS/Jun/wnmmtudow.gbp/Jun/3B/Jun/9/Jun + BycJ/Jun + supervisor/mKAOdc0wPYbX/j1h/3F /lSA858RtjX7z/f/examples + examples/j1h/3F/examples/AG/examples/JAyaAE/tu/XTTp/sampl
This article describes in detail how to use the crypt () function to encrypt php Data, interested friends can refer to this article for details about using the crypt () function in php for encryption, which has some reference value. interested friends can refer
I. code
The value of $ str after encryption is '. $ crypttostr; // output the encrypted variable?>
II. running result
The parameter does not contain salt, and each encrypted password is di
-----","") . Replace ("-----END RSA PRIVATE KEY-----",""); RSACryptoServiceProvider Rsaprovider = Decodersaprivatekey (Prikey);//rsacryptoserviceprovider Rsaprovider = Decodersaprivatekey (); //rsaprovider.fromxmlstring ();String Privatekey = rsaprovider.toxmlstring (true);//The private key of the RSA algorithm is exported to the string Privatekey, and the parameter is true to export the private keyConsole.WriteLine (Privatekey);/****************************************
This article introduces two methods to encrypt the php program itself. Our common method is base64_encode (gzdeflate ($ contents, the second method is rare. For more information, see.
Instance 1
The Code is as follows:
Copy code
Function encode_file_contents ($ filename ){$ Type = strtolower (substr (strrchr ($ filename, '.'), 1 ));If ('php' = $ type is_file ($ filename) is_writable ($ filename) {// compress the Code if the p
the code is garbled. In fact, this is a blind spot,It uses the php variable to expand to the latin1 character range, the variable matching regular is in the format of \ $ [a-zA-Z _ \ x7f-\ xff] [\ w \ x7f-\ xff.I have analyzed the analysis in the past few days and finally found the answer on the official website. please refer 《Tutorial on how to encrypt and decrypt a PHP variable"
A little too far. let's do the first step of decryption.PS: This is ju
#touch a.php //create a.php file #vi a.php //edit a.php file with VI
#php a.php //Run a.php file
Display: e10adc3949ba59abbe56e057f20f883e
A. On Linux or UNIX, md5sum is the tool that is used to calculate and verify the file digest. In general, after installing Linux, there will be md5sum this tool, directly run directly at the command line terminal. You can use the following command to get the md5sum command to help man md5sum
#md5sum Help
There is a hint: "With no file, or when file
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