PHP encryption and decryption functions in detail, encryption and decryption functions in detail
Share a PHP cryptographic decryption function that implements the ability to encrypt part of a variable's value.The encryption code is as follows:
/* Function: Encrypt the string * parameter one: What needs to be encrypted * parameter two: Key */function Passport_enc
Php encryption and decryption string example, php encryption and decryption example
Some classic PHP encryption and decryption function codes are included and shared with you. Encryption and decryption principles are generally based on a certain number of encryption and decr
Dr.com -- encryption (webpage) and dr.com Encryption
Dr.com is a broadband billing system developed by city hotspot companies. It can control network management, authentication, billing, and speed limit ...... Many colleges and enterprises use this function.
I am very interested in drcom (I think everyone understands the reasons ...)
Drcom login (authentication) methods are different. Here we will talk abou
Asymmetric Data Encryption DH algorithm and asymmetric Data Encryption dh Algorithm
Asymmetric encryption algorithms are relative to symmetric encryption algorithms. For more information about symmetric encryption algorithms, see the previous summary. Today we will introduce
MySQL encryption and md5 Encryption
MySQL field encryption and decryption 1. encryption: aes_encrypt ('admin', 'key') Decryption: aes_decrypt (password, 'key') 2. two-way encryption is encrypted by the key. Only the person who knows the key is used for decryption.
Original source: http://www.cnblogs.com/Charltsing/p/EncryptVBACode.htmlVBA code encryption is a commonplace issue, and since my VBA dumper was released, any encryption at the office level has lost its meaning. So, many people began to move to the VB package or upgrade to Vsto,delphi and other languages. However, for the vast majority of Vbaer, the problem of re-learning a language is far more than the bene
In the previous section we talked about the three aspects of encryption:confidentiality, integrity, authenticationIn order to achieve the communication between A and B is confidential, so that the third party even if intercepted information can not be understood, it is necessary to encrypt the plaintext data.We know that encryption is actually implemented using some algorithms ( which is why the relationship between computers and mathematicians is so
Asymmetric encryption algorithm is relative to symmetric encryption algorithm, for symmetric encryption algorithm please refer to the previous summary, today for everyone to introduce the DH algorithm, DH is a key exchange algorithm, the receiver based on the sender encryption key, generate receiver decryption key. Let
In use. NET Framework to perform cryptographic tasks, you need to prepare the encryption key and initialization vector (initialization vector,iv). Based on the characteristics of symmetric encryption, it is important to preserve the key and initialization vectors after the data is encrypted, because they are used for decryption. But for different data encryption,
Http://www.tuicool.com/articles/nERnqe
Http://www.cnblogs.com/AloneSword/p/3485912.html "Here is a detailed description of the specific symmetric and asymmetric algorithms"
AES encryption and decryption inside C #
C # code written in Visual Studio
Using System;
Using System.Collections.Generic;
Using System.Linq;
Using System.Text;
Using System.Security.Cryptography;
Namespace Test {class Class1 {static void Main (string[] args) {Console.WriteL
Asp.net| Reference | encryption
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Using System;Using System.Text;Using System.Security;Using System.Security.Cryptography;Using Sys
The simplest code is given below, which adds additional functionality to the code, such as outputting the encrypted string to a file, reading the string to be encrypted or decrypted from the file ...public class Encryption {//XOR/encryption algorithm public static void main (string[] args) {String password= "Happy Mid-Autumn Festival ... ";//to encrypt or decrypt the string Char[]array=password.tochararray
Python-based rsa encryption algorithm, pythonrsa Encryption Algorithm
This example describes the rsa encryption algorithm implemented by Python. We will share this with you for your reference. The details are as follows:
Algorithm process
1. Select two large prime numbers p and q at will. p is not equal to q and N = pq is calculated.2. According to the Euler's fu
Log on to the system with the Python username and password (MD5 encryption and file storage, and the password will be locked after three input errors) and perform the encryption and decryption of the string with the Caesar password,
#-*-Coding: gb2312-*-# log on to the system with the username and password (MD5 encryption and file storage) and perform the operati
Example of one-way hash encryption implemented by PHP and example of encryption implemented by php
This example describes one-way hash encryption implemented by PHP. We will share this with you for your reference. The details are as follows:
1. Encrypted File
2. decrypt the file
PS: if you are interested in encryption
homomorphic Encryption (homomorphic encryption) is a form of encryption that allows people to perform certain algebraic operations on ciphertext to get the result that is still encrypted, and the result of decrypting it is the same as the result of the same operation on the plaintext. In other words, this technology enables people to perform operations such as
Complete example of base64 encryption and decryption implemented by JS, and jsbase64 encryption and decryption
This article describes the base64 encryption and decryption implemented by JS. We will share this with you for your reference. The details are as follows:
Complete code:
For more information about base64 encryption
Simple sha1 encryption function example implemented by PHP and phpsha1 encryption example
This example describes the sha1 encryption function implemented by PHP. We will share this with you for your reference. The details are as follows:
function encryptTokey($data){ $apikey = 'testapikey111'; $ps1 = sha1($apikey . strtolower($data)); $ps1 = strtouppe
label: des style uses the SP data on BS size algorithm 1. symmetric encryption-key encryptionDesIdeaAESFeatures: Public algorithms, low computing workload, fast encryption speed, and high encryption efficiency,Insufficient: insecurePrinciple: in symmetric encryption algorithms, only one key is used. Both parties use th
encryption features:
Fixed-length output: No matter how big the raw data is, the results are of the same size.
Avalanche effect: small changes in input will cause huge changes in results
One-way encryption algorithms: MD5 (128 bits), sha1, sha256, sha384, and sha512
Iii. encryption process and principles
Iv. self-built private CA process
A
① Generate a key
[[E
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