evault encryption

Comments: Common encryption algorithms include symmetric encryption algorithms, asymmetric encryption algorithms, and Hash algorithms. Symmetric encryption is an encryption algorithm that uses the same key for encryption and decry

Http://www.cnblogs.com/1-2-3/archive/2007/09/17/colloquialism-digital-certificate-part1.htmlSummaryThis series is easy to read, so you can understand the basic principles of digital signatures and how to apply them (even if you are an enterprise boss who is not computer savvy, you can read this article). Then we step into the technical details, and finally will give a B/s information system using the digital signature demo.Because the digital signature is based on asymmetric

Objective: Recently accidentally and colleagues to exchange data security transmission problems, think of their own used RSA asymmetric encryption algorithm, idle down to sum up. Several other encryption methods: RSA encryption of Android data encryptionAES encryption of Android data encryptionDes

identity of each other. Identity authentication is divided into one-way authentication and two-way authentication. One-way authentication only the server side has the certificate, two-way authentication in the server and the client has the certificate. A typical HTTPS site only has a certificate for the server and no certificate for the client. One-way certification is a simplified version of two-way certification, the discussion process in this article without special instructions are consider

Symmetric key encryption in HTTPS, public key encryption, digital certificate keyWe call unencrypted content plaintext, and the encrypted content is called ciphertext.In short, to encrypt a piece of plaintext, you can enter this content into an encryption function, output ciphertext. However, this simple encryption met

PDF encryption and decryption (I)-Analysis of PDF encryption dictionary objects 0 keywordsPDF encryption has two passwords: Owner (to set the PDF document permission or change the permission) password and user password. In this document, the master (permission) password and user password are translated, I think the permission password is better, so it is called t

First of all, it is said that SSH is not the three main framework of Java tradition, but a kind of security shell protocol based on application layer and transport layer, and familiar with Linux friends often use a tool of SSH Secure Shell cilent. This paper is also based on this tool encryption principle of learning, in the SSH encryption principle, the use of RSA Asymmetric

This article all source code download:/files/chnking/encryptlongdata.rarI. Use of certificates combined with symmetric encryption algorithm to add and decrypt Long dataThe previous section discussed how to encrypt data using RSA certificates, which mentions: "The RSA implementation of dotnet has a characteristic that it must add some random numbers in the clear text, so the plaintext cannot fill 128 bytes, the actual test, the plaintext is up to 117 b

(Src.getbytes ()); byte[] encode = Ba Se64.encodebase64 (Src.getbytes ()); System.out.println ("Encode:" + new String (encode)); byte[] decode = base64.decodebase64 (encode); System.out.println ("Decode:" + new String (decode));} public static void BouncyCastleBase64 () {byte[] encode = org.bouncycastle.uTil.encoders.Base64.encode (Src.getbytes ()); System.out.println ("Encode:" + new String (encode)); byte[] decode = Org.bouncycastle.util.encoders.Base64.decode (Enco DE); System.out.println ("

As with symmetric encryption algorithms, the related classes of all asymmetric algorithms also exist in the System.Security.Cryptography namespace. In this namespace,. NET Framework provides four kinds of asymmetric encryption algorithms, such as RSA, DSA, ECC and Differ-hellman. This section describes several of the major related classes and interfaces. The relevant content of the application will be descr

The last blog about how to play the hash algorithm, but that article did not explain clearly. This blog post I will try to make the things that are not explained clearly. Of course, the theme of this article is to play symmetric encryption. . NET of symmetric encryption technology There are mainly such several: Des,aes,rijndael,tripledes (3DES). Now, let's play around with them! As with the previous blog p

To start encryption: 1.BIOS Currently, the simplest and easiest system password is the number of BIOS passwords. Set the BIOS password, each boot into the Windows operating system, the computer will be prompted to enter the BIOS password, only the correct input password, before the start of the winodows system, if the password is not correct, then the illegal intruder can only do points on the boot, shutdown operation. Start the computer, press the DE

Encryption in another way -Liu taotao, a famous programmer, talks about the distorted encryption and transformation technologyWhat is distorted encryption transformation? This is a software I developed. The official term may be "mixed encryption". I name my software "distorted encr