We know that if the password is hashed directly, then the hacker can get a hash value by obtaining this password, and then by checking the hash value dictionary (for example, MD5 password cracking site), the password of a user.Adding salt can solve
Transferred from: http://blog.csdn.net/blade2001/article/details/6341078We know that if the password is hashed directly, then the hacker can get a hash value by obtaining this password, and then by checking the hash value dictionary (for example, MD5
People who have been familiar with md5 know that md5 cannot be decrypted, but there are still many websites on the Internet that claim that MD5 can be cracked. This article will discuss this issue. People who have been familiar with md5 know that md5
Summary: Cryptography is a technical science that studies the compilation of passwords (encryption: encode) and deciphering passwords (decryption: decode. The objective law of password change is studied. it is used to compile passwords to keep
CommentsSummary: cryptography is a technical science that studies the compilation of passwords (encryption: encode) and deciphering passwords (decryption: decode. The objective law of password change is studied. It is used to compile passwords to
: This article mainly introduces consistent hash-php. if you are interested in the PHP Tutorial, refer to it.
/**
* Flexihash-A simple consistent hashing implementation for PHP.
*
* The MIT License
*
* Copyright (c) 2008 Paul Annesley
*
* Permission
PHP uses a custom key to encrypt and decrypt data.
This example describes how PHP uses a custom key to encrypt and decrypt data. We will share this with you for your reference. The details are as follows:
When the client communicates with the server,
Digital Signature: Hash The data and the private key to get a message digest, along with the message itself, to the Client. The data signature emphasizes that the data received by the client is from a specific server, and the server has
PHP Learning--php Encryption, PHP learning--php encryption
There are several types of encryption in PHP:
1. MD5 Encryption
String MD5 (string $str [, bool $raw _output = false])
Parameters
STR--the original string.
Raw_output--If the optional
Encryption | The position of data encryption in our lives has become more and more important, especially considering the large amount of transactions and data transmissions that occur on the web. If you are interested in adopting security measures,
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