asymmetric encryption example

Asymmetric Encryption of json strings This post was last edited by gwrc_s_d_n from 2013-08-12:20:07 for another project. it is required to send http requests in PHP and use asymmetric encryption. The encrypted part is a json string. Now the test problem is that if you directly encrypt the json string to the server usin

It seems that it is not an easy thing to speak clearly about asymmetric encryption with people outside the line.It is more appropriate to use a courier (or post) to make an analogy.Scene: Beijing's Zhangxiaofa, to send a courier to New York's Li Xiao, suppose it is a block of uncertain shape of gold, 2 kilograms.Zhangxiaofa this block of gold with a cipher box, set the password to 396173 (random, no meaning

Json string asymmetric encryption. This post was last edited by gwrc_s_d_n at 10:20:07. Recently, another project needs to send http requests in PHP and use asymmetric encryption. The encrypted part is a json string. Now the test problem is that if the json string is directly encrypted with the public key to the server

Recently in the project's interface continuous automation testing, long time no update blog.The project is exposed to many encryption-related data, and many projects use asymmetric encryption algorithms to ensure data security for both front-end and server interactions.Here's how to use the RSA encryption algorithm und

C # class Library by default implements a series of cryptographic algorithms in System.Security.Cryptography; Under namespacesSymmetric encryptionEncrypted and decrypted by the same key. Often used in the case of internal data transfer. such as company a program and B Program. A program to send data to the B program but to prevent the sending of data in plaintext to be Stolen. Then I'm going to set a Protocol. the byte byte of the transmitted data is unified +1 and the data is received in the ca

　　The asymmetric encryption algorithm requires two keys for encryption and decryption, which are public keys (publicly key, referred to as public key) and private key, or secret key (private key).The public key and private key are a key pair (a public key and a private key) obtained through an algorithm, the public key is the part of the key pair, and the private

　　Encrypt and decrypt a class of cryptographic algorithms that use different keys. This type of encryption algorithm usually has two keys A and B, using key a encryption data obtained ciphertext, only key B can be decrypted operation (even if key a cannot be decrypted);Instead, the ciphertext that is obtained by encrypting the data with key B can only be decrypted by the key A. These two keys are called pri

Unlike symmetric encryption algorithms, an asymmetric encryption algorithm requires two keys: the public key (PublicKey) and the private key (Privatekey). If the public key and the private key are a pair, if the data is encrypted with the public key, only the corresponding private key can be decrypted, if the private key is used to encrypt the data, then only the

Introduced Asymmetric encryption algorithm requires two keys: public key (PublicKey) and private key (Privatekey) Public key and private key is a pair, if the data encrypted with public key, only with the corresponding private key to decrypt, if the private key to encrypt the data, then only with the corresponding public key to decrypt Characteristics The algorithm strength is c

Program | encryption using System; Using System.Drawing; Using System.Collections; Using System.ComponentModel; Using System.Windows.Forms; Using System.Data; Using System.IO; Using System.Text; Using System.Security.Cryptography; Namespace Asymmetric Encryption { Summary description of the Form1. public class Form1:System.Windows.Forms.Form { Private System.Win

ObjectiveJust answered Segmentfault's previous brother's question, "asymmetric decryption error." This belongs to node. js in the security of the application, meet the same problem should be a lot of people, based on the answer to the question, here is a brief summary.The theoretical knowledge of asymmetric encryption can be referred to the author's previous arti

server is indeed the holder of the certificate, this I do not quite understand, there may be two ways: 1. To have the server encrypt a piece of text with the private key corresponding to the public key in the certificate, the client decrypts the ciphertext with the public key of the certificate and verifies that the server's private key corresponds to the public key of the certificate (how to protect the person in the loop ) 2. Verify the CN in the certificate and the CN of the server (this is

1. Symmetric encryption is the encryption and decryption of the time is the use of a password2. Asymmetric encryption, there is a pair of passwords, a, a, a encryption with a B decryption, the relative use of B encryption will hav

Recently in the design of single sign-on, in the design of the need for a token token of the encrypted transmission, the token in the entire connection point of the various stations play a connection authentication function, if the imitation will have unpredictable losses, but this token is reversible. So like that kind of md5,sha irreversible encryption can not be used, and then reversible encryption is ma

Public Key or asymmetric encryptionPublic-Key or asypolicric Cryptography)Public Key Cryptography provides a secure way for computer users to exchange information. The public key encryption standard is a standard developed by the RSA laboratory by security system developers around the world. Currently, PKCS is widely used, and some standard documents are part of formal or informal standards, including ANSI

PHP uses asymmetric encryption algorithm (RSA) Explanation Asymmetric Encryption algorithms require two keys: public key and private key ). A public key is a pair of private keys. if a public key is used to encrypt data, only the corresponding private key can be used for decryption. if a private key is used to en

{ +FileOutputStream foskey=NewFileOutputStream (fileName); theObjectOutputStream oossecretkey=NewObjectOutputStream (foskey); - Oossecretkey.writeobject (key); $ oossecretkey.close (); the Foskey.close (); the } the //Read Key the Public StaticKey ReadKey (String fileName)throwsexception{ -FileInputStream fiskey=NewFileInputStream (fileName); inObjectInputStream oiskey=NewObjectInputStream (fiskey); theKey key=(Key) oiskey.readobject (); the oiskey.close (); About fiskey.close ()

X509Certificate2 GetCertificate(string CertName) 2: { 3: // declare the x509store object, specifying the name and type of the bucket 4: // storename defines the logical names of some default storage areas. 5: X509Store store = new X509Store(StoreName.My, StoreLocation.CurrentUser); 6: // open the bucket in read-only mode, which is defined by openflags. 7: store.Open(OpenFlags.ReadOnly); 8: // obtain the set of digital certificates in the bucket 9:

*) dataout,//used to return the data dataoutavailable, dataoutmoved); nsstring* result = nil; if (encryptoperation = = Kccdecrypt)//encryptoperation==1 decode {//Get decrypted data, change to Utf-8 string result = [[NSString alloc] initwithdata:[nsdata datawithbytes: (const void *) Dataout length: (Nsuinteger) Datao Utmoved] encoding:nsutf8stringencoding]; } Else//encryptoperation==0 (during encryption