to md5

Recently in the project to use the network Request signature authentication method, so on the internet to find the OC sha1加密 method, quickly found a public use of the package good method, the following code isFirst you need to add a header

iOS Development Web chapter-Data SecurityA simple explanation1. DescriptionWhen developing an application, the security of the data is critical, and simply submitting the user's privacy data with a POST request is still not a complete solution to

Android projects, it is inevitable to download some third-party applications, or their own updated packages, or download video files, you will consider the use of the method of the continuation of disconnection.Then, there are about 3 ways to

In iOS development, MD5 or other hashes are often used to improve the security of your application. The most common operation is to MD5 the password and then transfer it. Of course, there are a lot of ready-made implementations, the blog is to

iOS Development Web chapter-Data securityA simple explanation1. DescriptionWhen developing an application, the security of the data is critical, and simply submitting the user's privacy data with a POST request is still not a complete solution to

The concept of cachingcaching This thing is really everywhere, There is a browser-side cache, There is a server-side cache, a proxy server cache, have a Asp. NET page cache, object cache. The database also has caches, and so on.The caching feature

Several encryption methods common to iOSThe normal encryption method is to encrypt the password and save it to user preferences.The keychain is saved in clear text, but does not know the exact location of the storage1,base64 encryption Base64 coding

Introducing Apache Datafu in two parts, this article describes the part of its pig UDF. The code is open source on GitHub (except for the code.) There are also some slides introduction links).Datafu inside are some of the pig's UDFs. Functions that

Err Error:1.no pg_hba.conf entry for Host ":: 1", User "Gpmon", Database "Gpperfmon", SSL offSolve:pg_hba.conf增加： host gpperfmon gpmon ::1/128 trust (此处的trust应该为md5，否则后面会报错)2.error: In the installation workload Manaager error,

MD5 Message Digest algorithm MD5 (Chinese named message Digest Algorithm version fifth) is a hash function widely used in the field of computer security to provide integrity protection for messages. The algorithm's file number is RFC 1321

I. Abstract algorithm--HASHLIB module1, Algorithm IntroductionPython's hashlib provides a common digest algorithm, such as MD5,SHA1 and so on.What is a digest algorithm? Abstract the algorithm is also called hash algorithm and hashing algorithm. It

Reprint, original link http://linux.cn/portal.php?mod=view&aid=170 using Ubuntu to build a Ruby on Rails Local development environment Want to develop a Ruby on Rails app? Although there are already some (beginner) Ruby on Rails

Security signatures in Java Web TransportDescriptionSign the Data key pair in the request, and eventually generate a signature string labeled sign: "Djflw8wejwl9w0ejwlush8fw9ew9", 64-bit or 32-bit,The server side to get the relevant data is also

This article was reproduced from: http://blog.csdn.net/kongqz/article/details/6695417I. Overview1, our Memcache client uses the consistency hash algorithm Ketama to choose the data storage node. Unlike the conventional hash algorithm, we only hash

Hashlib ModuleThe hashlib in Python provides us with a common digest algorithm, such as MD5, SHA1So now the question is, what is the abstract algorithm ? Abstract the algorithm is also called hash algorithm and hashing algorithm.It refers to the

Linux under Rights Management details Chown command: Change file owner (owner)Format: chown [option] User name file (can be modified with multiple files)Option:-R for all documents in the document and in the catalogue--reference=/path

OrderThe basic one-way encryption algorithm--MD5 is introduced in the previous article, and the principle of its realization is also roughly stated. This article continues the one-way encryption mentioned earlier, mainly on Sha, like MD5, Sha is

Here we will analyze how to open and use the Smarty cache, how to clear the Smarty cache and Smarty Global cache, partial caching, local caching three kinds of caching mechanism. First, open and use the Smarty cache To turn on the Smarty cache,

Previous blogs recorded the installation of PostgreSQL 9.3 via the RPM package (Linux CentOS 7 Installation PostgreSQL 9.3 (release)), this blog will be recorded in the form of the source code compiled PostgreSQL 9.5. Download The source file

Security is a very important aspect of programming. In any programming language, a number of functions or modules are provided to ensure the security of a program. In modern Web applications, it is often required to get input from users around the