for passing information between a Web browser and a Web server. The plaintext sends the content, does not provide the data encryption in any way, the intruder can capture the packet directly obtains the transmission the message, then obtains the user data.HTTPS: Secure Sockets Layer Hypertext Transfer Protocol, which joins the SSL protocol on the basis of HTTP, SSL relies on certificates to verify the identity of the server and encrypt communication
A lot of netizens feedback how to encrypt PDF documents? for PDF encryption Small series recommended you use Adobe Acrobat software, you can download online!
The specific encryption method is as follows:
1, open an arbitrary PDF document;
2, select the "Document" menu bar;
3, select "Document" in the "Security" column;
4, and then select "Security" in the "Display the security settings for this document" column
5, this entered the "D
When you process some files, if you think it is important, you will set a password for the file, just like setting a password for your phone. If you need to view the password, you need to enter the password, in fact, the principles are similar. How can we encrypt a PDF file? Next let's take a look at the small series of operation methods.
1: In the first step, we can create a new folder and add the PDF file to be encrypted. Of course, you do not need
1. Download let ' s encrypt2. Generate the key, call before you need to stop NginxCertbot certonly--standalone-d www. domain name 1.com-d www. domain name 2.comThe build succeeds with the following promptsIMPORTANT NOTES:-congratulations! Your certificate and chain has been saved at/etc/letsencrypt/live/"Here is your domain name"/FULLCHAIN.PEM. Your cert would expire on "here is the expiry time". To obtain a new or tweaked version of this certificate on the future, simply run Certbot-auto
How to compress files, how to encrypt compressed files, and how to encrypt compressed files
We often encounter File compression and file encryption in our daily lives and work. Sometimes, they simply don't want others to see it; sometimes, they provide downloads but cannot share them, and they are used to get profits. So how to compress a file or a folder? At the same time, how can we
Use ascii to encrypt strings and ascii to encrypt strings
Algorithm: replace the original letter with the fourth letter after the original letter.Plaintext: China ciphertext: Glmre
# Include
1, first right click on the folder to encrypt, select the property options, as shown:
2, click the Advanced button in the Folder option, as shown in the picture:
3, choose the option as shown in the picture:
4. Select hidden option and click OK button, as shown in figure:
1, we open the phone oppo R9 mobile phone with the butler, click "Privacy",-"program encryption" effect as shown below
2, there is an "application encryption" the default is not open, we just open on it, now we take a look at how to open, click to enter can choose their own encryption of the application, if the album encryption, select album Confidential
3, then set up to encrypt the program click "Start Encryption", and then we need to
Asp.net|web| Program | encryption
First, IntroductionWhen creating ASP.net 2.0 applications, developers typically store sensitive configuration information in Web.config files. The most typical example is the database connection string, but other sensitive information included in the Web.config file includes SMTP server connection information and user credential data, and so on. Although ASP.net can be configured by default to deny all HTTP requests for file resources with the extension. con
First, Introduction
When creating ASP.net 2.0 applications, developers typically store sensitive configuration information in Web.config files. The most typical example is the database connection string, but other sensitive information included in the Web.config file includes SMTP server connection information and user credential data, and so on. Although ASP.net can be configured by default to deny all HTTP requests for file resources with the extension. config, the sensitive information in th
Transferred from: http://netsecurity.51cto.com/art/201301/378513.htm1. IntroductionOpenSSL is a powerful cryptographic toolkit. Many of us already use OpenSSL to create RSA private keys or certificate signing requests (CSRs). But have you ever known that you can use OpenSSL to test your computer's speed? Or can you use it to encrypt a file or a message? This article will show you a few easy-to-learn tips on how to
Using let's Encrypt for free SSL Certs with NetscalerIf you haven ' t heard, let's Encrypt (https://letsencrypt.org/) has it free and the open CA service up and running and publ IC Beta.That's means right now, and you can go to get yourself free SSL certificates for any web property that's you own.These SSL certs is cross-signed by identrust, meaning they would be trusted by all major browsers. The premise
Let ' s encrypt as a public and free SSL project is gradually spread and use by the vast number of users, is by Mozilla, Cisco, Akamai, Identrust, eff and other organizations to launch, The main goal is also to promote the Web site from HTTP to https over the process, there are more and more businesses to join and sponsorship support.
The advent of let's encrypt free SSL certificate will also be a blow to t
How to Use DM-Crypt to encrypt a Linux File System?
Readers often ask us how to implement a file system encryption method for Linux. Before discussing this topic in depth, I would like to clarify two points:
First, it is difficult to find enough information on the Internet. So I will introduce you to a few really great resources that are hard to find (actually several tutorials ).
Second, it is important to understand the technical details of this is
Brief introductionIn a real-world project environment, we do not store confidential text such as passwords in plaintext in the configuration file in case of theft. Spring Cloud Config provides an encryption method for encrypting plaintext text encrypted into ciphertext stored in a configuration file. Spring Cloud Config provides two types of encryption and decryption, one is symmetric encryption, and the other is asymmetric encryption. This article will show you how to use symmetric encryption f
Because mobile drives are often used on different computers, accidentally will infect the computer inside of the virus, will cause the data in the mobile hard disk damage or loss, and if you take this mobile hard disk to other computer use, but also may infect other computers, so that virus Trojan continues to spread, However, ordinary anti-virus software is difficult to solve the mobile hard drive inside the virus. So how do we make sure that the mobile drives are secure? Small series to provid
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
Recently the company website to use HTTPS, from their own groping to find the domestic free certificate to purchase a formal fee certificate, finally the boss said: too expensive. No. A face to listen to the boss said let ' s encrypt certificate, no way, with Bai. Before there is some understanding, a foreign release of a pure free certificate, just feel that there is no free lunch, free and the gap between fees is certain. So, bite the bullet and sta
How to encrypt configuration files
Address: http://www.cnblogs.com/jfzhu/p/4039216.html
Reprinted please indicate the source
In the web. config or app. config file, we often store some sensitive information, such as connectionStrings or appSettings, such as the following files.
using System;using System.Configuration;namespace WebConfigEncryptTest{ public partial class WebForm1 : System.Web.UI.Page { protected void Page_Load(object send
add a password to a folder, click the "Folder plus password" button, and then select the folder in the Directory Selection window and enter the password.
Among them: folder with password, open this folder in My computer, need data correct password to open, use finished, will automatically restore to add password State, need not add password again.
Folder hidden, disappeared without a trace, not through the software can not find and open. When used, in the Folder Protection window, select the
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