one way hash

Recently, there was a project involving cooperation with other websites. The authentication plan for communication between the two parties was implemented through RSA. Because it may involve different development environments, we need to study the

In actual applications, we usually store encrypted passwords in the database. Assume that our database has been illegally downloaded. If we used a non-symmetric encryption algorithm (MD5, RSA ...), Therefore, attackers have to pay a certain price to

Http://blog.joycode.com/moslem/archive/2003/12/29/10108.aspx At present, enterprises are facing great changes in the computing environment and the past. Many data resources can be remotely accessed by the network, and more communications depend

1. We don't have a real server. We just rented the. net2.0 + sqlserver space, and the SQL database name is fixed.2. The space provider cannot set the data source or the aspnetdb database permission for us.3. We do not have the \ windows \ microsoft.

Is to convert a message of any length into a short message of a fixed length. It is similar to a function of the message as an independent variable.That is, the hash function. A digital digest uses a single hash function to encrypt the plaintext

1. character location search function: Strpos ($ STR, search, [int]): searches for the first position of search in $ STR starting from int; Stripos ($ STR, search, [int]): the position where the string first appears in another string. This function

Abstract: IETF provides IPSEC security specifications for network layer security risks. This article discusses the IPSec architecture, several working methods and current methods, and analyzes the principles and mechanisms of providing security

3. Configure web. config Web. config also needs to be modified. Add an authentication node under the system. Web node. Since membership is used for member qualification management, of course, login authentication is required, so first add a form

Turn http://www.vcgood.com/forum_posts.asp? Tid = 771 & Pn = 1 (Mpq files used by Blizzard)I recently saw an article on the Internet to join blizzard.First, I would like to raise a simple question. If there is a huge string array, then I will give

PJBlog2 is a free ASP + Access personal blog system developed by PuterJam. In the past few days, I want to get a blog to play with it. PJBlog2 has relatively good functions and interfaces. After a trial, I feel that this blog is not bad, but I also

This article is based on ASP. NET March 2004 in 2.0 community technology preview. All information contained in this document may be changed. This article discusses: • Enhanced security in ASP. NET 2.0 • Server-side Security

This article is a basic article on Software encryption technology. It briefly introduces some basic knowledge about Software Encryption and some encryption products. It is suitable for domestic software developers or individual software developers

Speaking of secure network access, we believe that the first thing we think of is secure shell, which is usually abbreviated as SSH. This is because SSH is easy to install, easy to use, and common. Generally, UNIX, Linux, and FreeBSD systems all

The password is stored in one-way hash to ensure the security of the user's password after the database is detached.Because of the existence of the rainbow table attack method, it is generally considered that one-way algorithms such as MD5 and sha1

In the development of various application systems, user information is often stored. In many places, user passwords must be stored, and direct storage of user passwords on servers is obviously insecure, this article briefly introduces common MD5

I. Basic network security knowledge 1. network security means that the hardware and software of the network system and the data in the system are protected, and the system runs reliably and normally without accidental or malicious reasons. 2. Five

Author: hackest [h.s. T.]Source: hackest's blog Http://www.hackest.cn/post/102/ Introduction I have been wondering, in what way can I control the permissions that have been obtained for a long time? Webshell, Trojan, or even rootkit? The webshell

At present, enterprises are facing great changes in the computing environment and the past. Many data resources can be remotely accessed by the network, and more communications depend on public networks (such as the Internet ), these environments do

Encryption Algorithm: Symmetric encryption algorithm: Des, idea, RC2, RC4, AES, Skipjack ...... Asymmetric encryption algorithm: RSA, DSA, diffiehellman, PKCS, PGP ...... The one-way hash algorithm is a packet Digest algorithm, although some are

MD5 Message Digest algorithm MD5 (Chinese named message Digest Algorithm version fifth) is a hash function widely used in the field of computer security to provide integrity protection for messages. The algorithm's file number is RFC 1321