Linux Password Encryption Algorithm

As an important means of protecting information confidentiality, integrity and non-repudiation, encryption and digital signature are widely used in various information and communication situations. At present, there are many commercial encryption and digital signature products, such as commercial software PGP (pretty good Privacy). In addition, there are free encryption and digital signature software in the open source repository, the most recognized being GPG (GNU Privacy Guard). GPG is a completely free, source-code-compliant software product that is completely compatible with PGP. Today, GPG has ...

The Chinese Internet-a virtual world that seems to have been able to whisper, shop, store photos, and private letters-is opening up the last layer of danger when anyone can download a user's password library from several of the most popular websites. Nearly half a month, CSDN, Tianya and other sites of users password database has been cracked and circulated online. A security crisis broke out for citizens ' personal information. This may seem like an accident, but the security insiders judged that the CSDN site had been breached a few years ago, just this "underground" flow of things, now ordinary people can get ...

"Cloud" This word in recent years has been fired hot, in the information security sector, "cloud" is a big darling, the enterprises have been among the ranks of the cloud. Because, the advent of cloud technology does bring the modern enterprise very big convenience. However, with the benefits of the accompanying, of course, there is a reluctance to touch the information security risks. Since enterprises want to take advantage of the benefits of cloud technology, it is natural to find ways to solve the cloud security risks, reduce the risk faced by enterprises. 　　The following is to share the cloud of the server's 7 major security secrets, so that enterprises targeted security protection. Server data Security 7 big secret ...

Absrtact: In 2054, your whereabouts are at your disposal, no matter where you go, the subway or the building. Because everyone's iris information is stored in the computer, countless iris scanners are staring at you. This is the scene from the Minority Report. 2015, you sell Meng to 2054, your whereabouts are always mastered, no matter where you go, subway or building. Because everyone's iris information is stored in the computer, countless iris scanners are staring at you. This is the scene from the Minority Report. 2015, you sell Meng to the mobile phone shouted a "Dear most handsome" ...

With the development of network and computer technology, the security of data storage and data exchange has become more and more important, and encryption technology has been used in data saving and data exchange very early. In order to ensure the correctness of the identities of both sides of the network data exchange, the visa system has matured. GnuPG is a set of tools for encrypting data and making certificates, and it works like PGP. But PGP uses a number of proprietary algorithms, which are among the notorious U.S. export restrictions. GnuPG is the GPL software, and does not use any patented encryption algorithm, so that ...

Blockchain is currently a relatively popular new concept, containing two concepts of technology and finance. From a technical point of view, this is a distributed database that sacrifices consistency efficiency and guarantees eventual consistency. Of course, this is one-sided. From an economic point of view, this kind of fault-tolerant peer-to-peer network just meets a necessary requirement of the sharing economy - a low-cost trusted environment.

With the popularization of Internet applications, more and more people start to use the services provided on the Internet. However, most of the Web sites currently providing services use user names and passwords to identify users, which makes it necessary for users to enter their username and password frequently. Obviously this kind of authentication has the disadvantage: with the increase of user network identity, users need to remember more than one group of user names, passwords, which give users the burden of memory; another frequent input user name, password, will correspondingly increase the user password password is cracked probability. In order to change this situation, single sign-on technology emerged ...

China's cloud computing services market will reach $1.1 billion trillion in 2014 and will grow at a compound rate of nearly 45% per cent in the future, according to the latest figures released by US market research companies. Of these, more than 55% of the market is from the application software that is the service market contribution, mainly including the software vendors through the cloud computing way to provide SMEs with the financial, business management and collaboration applications. Cloud services for the first time to pull the domestic IT industry to the international advanced countries at the same time starting the starting line. And the domestic traditional software vendors, need to cross the cost, technology, market, talent and other heavy ...

How to judge a home camera is safe? In the last two years, there may be no one to pay attention to this topic. But with the recent arrival of home camera products, as well as CCTV 3,151 times "camera is black" large-scale exposure, it began to have a hot user discussions. We usually think that the computer and the camera on the phone will be very safe, but in fact, this is often a variety of leaked user privacy "xx door", the recent "crazy" incident is a bad application recording user privacy video and then uploaded to Youku is publicly circulated. Home camera closer to life, it ...

"Silicon Valley network October 8," according to "Science and Technology and Life" magazine 2012 15th, SSH is the current network of remote login tools, it can be built between the server and host encryption tunnels to protect all aspects of communication security, including the password from eavesdropping. 　　Designed to start with SSH's primary configuration, allows beginners to quickly configure a simple and efficient SSH server. keywords ssh; remote login; Linux key 1 Proxy Server overview in the current network, remote logins are very common, but in the use of te ...