cryptography digest

$apply () and $digest () are two core concepts in AngularJS, but sometimes they are confusing. To understand how AngularJS works, you first need to understand how $apply () and $digest () work. This article is intended to explain what $apply () and $digest () are, and how they are applied in everyday coding. Explore $apply () and $

Java Cryptographic Decryption Message digest algorithm (MD5 SHA MAC)Message digestMessage Digest, also known as a Digital digest (digitally Digest).It is the only fixed-length value corresponding to a message or text that is generated by a one-way hash encryption function that acts on the message. Suppose the message c

authentication is any Web browsers support it. Rarely it is used on publicly accessible Internet Web sites and may sometimes being used by small, private systems. A later mechanism, Digest access authentication, was developed in order to replace the basic access authentication and ENA BLE credentials to is passed in a relatively secure manner over an otherwise unsecure channel.Http authentication ..... DIGEST:Digest access authentication is one of th

1. Introduction to ToolsPt-query-digest is a tool for analyzing slow queries for MySQL, which analyzes Binlog, general log, Slowlog, It can also be analyzed using showprocesslist or MySQL protocol data crawled by tcpdump. The analysis results can be exported to a file, the analysis process is the parameters of the query statement, and then the parameterized query after the grouping statistics, statistics of the query execution time, frequency, percent

Use pt-query-digest to find the SQL statement that is not suitable, pt-query-digestsql Overview of pt-query-digest1. Indexes can be executed more quickly, but there must be unreasonable indexes. If you want to find those indexes that are not very suitable and optimize them before they become problems, you can use the pt-query-digest query review function to analyze the EXPLAIN execution plan. Pt-query-

1. Introduction to ToolsPt-query-digest is a tool for analyzing slow queries for MySQL, which analyzes Binlog, general log, Slowlog, It can also be analyzed using showprocesslist or MySQL protocol data crawled by tcpdump. The analysis results can be exported to a file, the analysis process is the parameters of the query statement, and then the parameterized query after the grouping statistics, statistics of the query execution time, frequency, percent

"Digest" Authentication (Digest authentication) is a simple authentication mechanism, originally developed for the HTTP protocol, and is often called an HTTP digest, described in RFC2671. Its authentication mechanism is simple, it uses hash (hash) encryption method, in order to avoid transmitting the user's password in clear text.Abstract authentication is to ver

Angular users want to know how data binding works. You may see a variety of words: $ watch, $ apply, and $ digest. How do they work? Here I want to answer these questions. In fact, they have already been answered in the official documents, but I still want to combine them. Angular. js features, two-way binding. What a magical function is to make changes to the view directly reflect the changes to the data, and the changes to the data are notified to

Original http://blog.csdn.net/seteor/article/details/240179131.percona-toolkit Installationwget http://www.percona.com/redir/downloads/percona-toolkit/2.1.1/percona-toolkit-2.1.1-1.noarch.rpmwget http://pkgs.repoforge.org/perl-TermReadKey/perl-TermReadKey-2.30-1.el5.rf.x86_64.rpmRPM-IVH perl-termreadkey-2.30-1.el5.rf.x86_64.rpmRPM-IVH percona-toolkit-2.1.1-1.noarch.rpm2. Syntax and important optionspt-query-digest [OPTIONS] [FILES] [DSN]--create-revie

About how to implement bidirectional binding in angular. js $ watch $ digest $ apply, angular. jsdigest Angular. js features, two-way binding. What a magical function is to make changes to the view directly reflect the changes to the data, and the changes to the data are notified to the view in real time. How can this be done? This is due to the following three important methods in scope: $ Watch$ Digest$ A

Tags: ons slist number partition full table scan nts ges OTA htmFirst, IntroductionPt-query-digest is a tool for analyzing slow queries for MySQL, which analyzes Binlog, general log, Slowlog, It can also be analyzed using showprocesslist or MySQL protocol data crawled by tcpdump. The analysis results can be exported to a file, the analysis process is the parameters of the query statement, and then the parameterized query after the grouping statistics,

First, IntroductionPt-query-digest is a tool for analyzing slow queries for MySQL, which analyzes Binlog, general log, Slowlog, It can also be analyzed using showprocesslist or MySQL protocol data crawled by tcpdump. The analysis results can be exported to a file, the analysis process is the parameters of the query statement, and then the parameterized query after the grouping statistics, statistics of the query execution time, frequency, percentage,

Analysis of slow query logs by pt-query-digest in MySQL, ptquerydigest I. Introduction Pt-query-digest is a tool used to analyze mysql slow queries. It can analyze binlog, General log, and slowlog, you can also use SHOWPROCESSLIST or MySQL protocol data captured by tcpdump for analysis. You can output the analysis results to a file. The analysis process is to first parameterize the query statement condition

Introduction I mentioned in cocos2d-x study note 16: record storage 1: CCUserDefault all kinds of defects of CCUserDefalut archiving, one of which is plaintext storage, players can directly modify the archive. This article describes how to use the Digest algorithm for archive verification. Preparations Abstract: There are many algorithms and their content is public. Therefore, there are many existing algorithm libraries on the network, the most famous

Angularjs $scope inside the $watch (), $digest () and $apply () are the core functions of ANGULARJS, learning Angularjs must understand these functions. When you bind a variable in $scope to view, Angularjs automatically creates a "Watch" inside it. "Watch" is used to monitor the change of variables in the ANGULARJS scope. You can create "watch" by calling the $scope. $watch () method. $scope. The $digest

Tags:. SQL root tables output TCP full table scan txt mysql slow query distinct1. Usage and parameter descriptionpt-query-Digest [OPTIONS] [FILES] [DSN]--create-review-table # #当使用--when the review parameter outputs the analysis results to a table, it is automatically created without a table. --create-history-table # #当使用--when the history parameter outputs the analysis results to a table, it is created automatically if no tables are found. --Filter #