1. Asymmetric Encryption Process:If there is a and B communication in the real world, in order to realize the confidentiality, completeness, availability of information in the non-Secure communication channel (three nature of information security), A and B conventions use asymmetric encrypted channels for communication, the process is as follows:Description:domestic currently using dual certificate system, that is, the user has both a signing certific
Password and password encryption rules of the Discuz forum, and discuz Forum encryption rules
Discuz password encryption rules:
Md5 (md5 ('string'). 'fixed string ');
Fixed strings are randomly generated when users are registered and stored in the salt Field of the data table pre_ucenter_members.
For example, if the password is 123456789 and the fixed string
Php-based complete php code encryption and decryption instance, php encryption and decryption
This article describes the php code encryption and decryption class based on php. We will share this with you for your reference. The details are as follows:
Php code encryption class. You can modify it according to your needs
This article mainly introduces the Practical PHP shared encryption class with public key. this class achieves different encryption results each time, but there is no problem with decryption. it is a very practical encryption class, for more information, see WEB interaction security, which has always been the primary solution for all major websites. The PHP
Php rsa encryption and decryption methods and development interfaces, rsa encryption and decryption
Network security is very important, especially to ensure data security. Many programmers who write interfaces directly transmit plaintext data. In my opinion, this is not professional. I advocate that all data through interfaces should be encrypted and decrypted before use.
This article mainly introduces the
Now PHP encryption methods have a lot of general, the general simple encryption method is directly MD5, but MD5 some simple password can also be decompile, so we now through the custom method to encrypt more secure.
Now is I collect and summarize some methods of PHP encryption method, share for everyone, for your reference.
Method One:
/*** Encrypt user's passwo
Php implements source code encryption, and php source code encryption. Php implements source code encryption. this example describes how php implements source code encryption. Share it with you for your reference. The specific implementation method is as follows: phpfun php implements source code
In the development of the project, some data needs to be encrypted and the server verifies that the request is made by our client!Scenarios are server-determined, using HmacSHA1 encryption and MD5 BASE64 encryptionThe encryption process is more complex1. Get GMT2. Use base64 encoding to calculate the MD5 value of the requested data content3. Set the request format4. Set the authentication information, need
PHP implements DES encryption and decryption instance code, and phpdes encrypts and decrypts instances. PHP-implemented DES encryption and decryption instance code. phpdes encryption and decryption instance this article describes the PHP-implemented DES encryption and decryption instance. For your reference, the code o
Mobile phone typing is really troublesome, so I will not directly provide instances for some simple or too complex code.
1. Not a method-add commentsAdd unnecessary comments without signature. Code omitted
2. case-insensitive Mixing
Ignore case sensitivity using VBS
3. Mixing branches and peers
Use the colon (:) to connect multiple lines of code as one line
4. One row is divided into multiple rows
Use the hyphen (_) to write a row into multiple rows.
5. execute Functions
Copy codeThe Code i
Development encountered MD5 encryption inconsistency problem, the exclusion of context encoding, encryption content issues.Crawled all kinds of information, and finally found the reason./**MD5 encryption of strings*/ Private Staticstring encodeByMD5 (String originstring) {if(Originstring! =NULL) { Try{//creates a summary of information with the spec
Mobile phone typing is really troublesome, so some simpler or too complex code I do not directly provide an example.
1, not the method of the method--Add notes
Add some rules useless annotations without signatures. Code slightly
2. Mixed case and writing
Use VBS to ignore case
3, the branch and the colleague mixes uses
Use a colon (:) to connect multiple lines of code to one line
4, one line divided more than one line
Use a continuation character (_) to write a line more than one l
With the popularity of mobile payment, mobile banking clients are more and more recognized by users, many people feel that since it is the client of the bank, it should be very safe. The report launches the most comprehensive security assessment for the Android mobile client of China's major banks, such as ICBC, CCB, CMB, Bank of Communications, Bank of China and ABC. Original title: Hacker aimed at mobile bankingWith the popularity of mobile payment, mobile banking clients are more and more re
PHP implements the g_tk encryption algorithm for QQ space and g_tk encryption algorithm. PHP implements the g_tk encryption algorithm for qqspace. g_tk is an example of this article that describes the g_tk encryption algorithm for qqspace implemented by PHP. Share it with you for your reference. The details are as foll
How to better encrypt a string? MD5, RSA, DES?Well, none of this is understood.Reference to the degree Niang, so the idea is:For encryption:· Remove a character from the string to be encrypted· The low-byte and Key1 of the characters are taken to make an XOR operation· Take the high byte of the character· Synthesize the data after the operation to a new characterFor decryption:· Remove a character from the string to decrypt· The low-byte and Key1 of t
PHP Custom encryption and Decryption program instance, PHP encryption and decryption instance
This article describes the PHP custom encryption and decryption program. Share to everyone for your reference. The specific analysis is as follows:
PHP3 Cryption is a very easily cracked, insecure cryptographic feature that should not be very important to use, although
Python implements Certificate-free encryption and decryption for instances and python encryption and decryption
The example in this article describes how to implement Certificate-free encryption and decryption in python and shares it with you for your reference. The specific implementation method is as follows:
Certificate-free
Simple symmetric encryption algorithm implementation in php and php Encryption Algorithm
Preface
I found a good symmetric encryption algorithm for PHP on the Internet. In the PHP syntax environment, there are symmetric algorithms that come with urlencode and urldecode, base64_encode, and base64_decode, however, these built-in algorithms cannot be called
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