decrypt md5 password in php

Use the MD5 conversion algorithm to prevent brute force cracking. MD5 is the most common cryptographic algorithm in Web applications. Because MD5 is irreversible, the ciphertext obtained after MD5 calculation cannot be obtained through reverse

MD5 is the most common cryptographic algorithm in Web applications. Because MD5 is irreversible, the ciphertext obtained after MD5 calculation cannot be obtained through reverse algorithms. Looking back at the original intention of using MD5 to

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

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

For users of e-commerce websites, the most important thing is the security of accounts and passwords. if the account and password are not encrypted, it will greatly increase security risks and never allow criminals to take advantage of them,

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,

For e-commerce site users, the most important thing is the security of the account and password, if the account and password is not encrypted processing, will greatly increase the security risks, never let criminals open the way, so now the website

Provides various official and user-released code examples. For code reference, you are welcome to exchange and learn. encryption of cookies makes your website more secure and logon information is not stored in the session. Create two functions in