Recommended 10 articles for crypt () function

PHP Encryption Extension Library-mhash Extension Library What is the Mhash extension library: Mhash is a non-reversible PHP encryption extension library based on discrete mathematical principles, which is not turned on by default. Mhash can be used to create checksum values, message summaries, message authentication codes, and key information that does not need to be saved (such as passwords). 1.Mhash Expansion Library installation about the Mhash library installation is similar to the MCrypt expansion Library install, here is not a long introduction, we can refer to the previous article "PHP Encryption extension Library-mcrypt extension Library"! 2.Mhash Extension Library Constants The Mhash library supports a variety of hashing algorithms such as MD5,SHA,CRC32, which can be used to output supported algorithm names using the Mhash_count () and Mhash_get_hash_name () functions. Here's a look at the sample code: <?phpheader ("content-type:text/html; Charset=utf-8 "); $num = MH

1. Summary of usage of PHP encryption mode instance

Introduction: PHP Encryption extension Library-mhash Extension Library What is the Mhash extension library: Mhash is a non-reversible PHP encryption extension library based on discrete mathematical principles, which is not turned on by default. Mhash can be used to create checksum values, message summaries, message authentication codes, and key information that does not need to be saved (such as passwords). 1.Mhash Expansion Library installation about the Mhash library installation is similar to the MCrypt expansion Library install, here is not a long introduction, we can refer to the previous article "PHP Encryption extension library-mcrypt Extension Library ...

2. Detailed description of the login process

Introduction: Do the login know, we need an identity to record the uniqueness of the user's identity, in Unionid is we need to record the unique ID, then how to get Unionid is the key, the project is divided into small programs and background PHP code two parts. Start with our applet code simple to say our small program JS code login process Login-&gt; get code-&gt;getuserinfo get IV and EncryptedData-&gt; to their own server processing ...

3. Summary of definitions and usage of crypt () functions in PHP

Summary: In PHP functions, there are a number of cryptographic functions, one of which can implement data encryption function called crypt () function. The crypt () function uses a one-way algorithm that does not have a corresponding decryption function. It returns a string that is encrypted using the DES, Blowfish, or MD5 algorithms. On the surface, the function of crypt () does not seem useful, but the function is widely used to ensure the integrity of the system's passwords. Because a one-way encrypted password, even if it falls into the hands of a third party, is not very useful because it cannot be reverted to plaintext. Below I ...

4. Summary of articles about how the encryption extension library is used

Introduction: PHP Encryption extension Library-mhash Extension Library What is the Mhash extension library: Mhash is a non-reversible PHP encryption extension library based on discrete mathematical principles, which is not turned on by default. Mhash can be used to create checksum values, message summaries, message authentication codes, and key information that does not need to be saved (such as passwords). 1.Mhash Expansion Library installation about the Mhash library installation is similar to the MCrypt expansion Library install, here is not a long introduction, we can refer to the previous article "PHP Encryption extension library-mcrypt Extension Library ...

5. Summary of Crypt () function instance usage in PHP

Summary: In PHP functions, there are a number of cryptographic functions, one of which can implement data encryption function called crypt () function. The crypt () function uses a one-way algorithm that does not have a corresponding decryption function. It returns a string that is encrypted using the DES, Blowfish, or MD5 algorithms. On the surface, the function of crypt () does not seem useful, but the function is widely used to ensure the integrity of the system's passwords. Because a one-way encrypted password, even if it falls into the hands of a third party, is not very useful because it cannot be reverted to plaintext. Below I ...

6. A detailed introduction to CRYPTO-JS

Introduction: Recently used PHP to do a movie/TV play online HTML5 of the station, using the PHP curl for real-time crawling, which encountered the problem of JS encryption, so Google to solve, only this summary. A wave of advertising personal homepage: www.linganmin.cn Movie Station address: Www.ifilm.ltd First said JS based on CRYPTO-JS encryption Cryptojs is a pure JavaScript write encryption class library, his GitHub warehouse address github.com/...

7. A detailed introduction to data decryption

Introduction: Often see a little bit of small partners in the group to ask the small program user data decryption process, so intends to write a small program user sensitive data decryption tutorial; The encryption process server completes, the decryption process in the applet and its own server completes, that is, by EncryptData get the following data:{&nbsp; &nbsp;&nbsp;&nbsp;&quot;openId&quot;:&nbsp;&quot;OPENID&quot;,&nbsp;& nbsp;&nbsp;&nbsp;&

8. Summary of usage of PHP encryption extension MCrypt

Introduction: The PHP language comes with a lot of encryption and decryption methods and extensions, today we introduce one of the extended mcrypt extension, MCrypt extension to complete the common cryptographic algorithm encapsulation. In fact, the extension is the MCrypt Standard Class library encapsulation, MCrypt completed a considerable number of commonly used cryptographic algorithms, such as DES, TripleDES,

9. Summary of cryptographic usages of PHP function crypt ()

Summary: In PHP functions, there are a number of cryptographic functions, one of which can implement data encryption function called crypt () function. The crypt () function uses a one-way algorithm that does not have a corresponding decryption function. It returns a string that is encrypted using the DES, Blowfish, or MD5 algorithms. From

10. ransomware solution for Bitcoin worm virus

Description: WannaCry ransomware used in widespread attacks all over the world Customer Guidance for Wannacrypt attacks (Microsoft Se Curity Response Center) How to

"Related question and answer recommendation":

Find PHP7.1 Cryptographic function mcrypt_module_open () replacement scheme

Javascript-python RSA Encryption problem

How do I modify a global variable in a callback function by using Bcrypt.compare to verify the password in Javascript-meteor?

How does Python invoke Libcrypto to implement RSA decryption?

Javascript-linux Installation MCrypt PHP expansion encountered the following problems, how to solve it?