hashing algorithm

Source Address: http://grunt1223.iteye.com/blog/828192First, IntroductionMultimedia recognition is a problem in information retrieval which is more difficult and more demanding. Taking image as an example, according to the information used in image

About RedisRedis is fully open source free and is a high-performance Key-value database.Redis and other Key-value cache products have the following three features:Redis supports data persistence, which saves data in memory on disk and can be loaded

1. Redis is not running as a daemon by default and can be modified by this configuration item, enabling the daemon with Yesdaemonize No2. When Redis is running as a daemon, Redis writes the PID to the/var/run/redis.pid file by default and can be

Before the identity authentication and data encryption and decryption, identity authentication can ensure that the data source is not a problem, data encryption and decryption can ensure that the data is intercepted by eavesdroppers can also prevent

There are a lot of changes to the password in MySQL5.6, including: Brand new password hashing algorithm (SHA-256 ). for password obfuscation in the mylogin file, you can choose to store the server load balancer node password in the database table.

Source: http://dev.mysql.com/doc/mysql/en/Old_client.html MySQL 4.1 and up uses an authentication protocol based on a password hashing algorithm that's incompatible with that used by older clients. If you upgrade the server to 4.1,

Redis configuration file Parameter description:1. Redis is not running as a daemon by default and can be modified by this configuration item, enabling the daemon with YesDaemonize No2. When Redis is running as a daemon, Redis writes the PID to

Small Q:   None of the work is protracted, except for the work that you do not dare to mix. -Baudelaire------------------------------Redis profile comparison -----------------------------Memcached is a high-performance distributed memory object

Reprint: http://toutiao.com/news/6253252096791937537/?iid=3521431589In the previous two posts, the usual hash methods ([Data Structure & Algorithm] hash) and the local sensitive hash algorithm ([algorithm] local sensitive hashing algorithm (Locality)

The status of data encryption in our lives has become increasingly important, especially given the large amount of data that is being traded and transmitted over the network. If you are interested in adopting security measures, you will also be

Original address: http://www.csdn.net/article/2012-06-21/2806814About performance Optimization This is a big topic, in the "12306.cn Talk about website performance Technology" in the business and design I said some of the available technologies and

Common hash Functions The generic hash function library has the following string hashing algorithms that mix addition and one operation. The following algorithms are different in terms of usage and functionality, but can be used as an example to

Although memcached is called a "distributed" cache server, the server does not have a "distributed" function. The server only includes the memory storage function, which is easy to implement. The distributed memcached is fully implemented by the

PHP Data encryption has become more and more important in our lives, especially considering the large volume of transactions and transmitted data on the network. If you are interested in using security measures, you will be interested in learning a

This article mainly introduces php's file hash calculation method, which involves file hash calculation techniques and is of great practical value, for more information about how php performs file hash operations, see the example in this article.

Redis is a high-availability, high-performance, high-scalability kv Storage database that is memory-based and supports persistent storage, compared to previous kv storage Memcached , not only support the value of the type greatly increased, and

First, analyze some code when the Java client is started. Memcached allows you to directly set multiple servers attributes to achieve multiple memcahced balancing. The corresponding attribute is weights, which literally means weight. After analyzing

PrefaceA long time ago, I began to study memcache and wrote a series of learning experiences, such as discuz! . The dozens of replies that follow have also made this article a popular topic in this blog. Meanwhile, in Baidu and Google, the keyword

Set Password rules for centos7Set Password rules for security considerations Set the number of days when the password expires.The user must change the password within the specified day.This setting only affects user creation, but does not affect

Reprinted from http://yulingtianxia.com/blog/2015/11/01/More-than-you-want-to-know-about-synchronized/If you've written any concurrent programs using OBJECTIVE-C, you've probably seen @synchronized.What @synchronized structure does is similar to