Double Key Encryption

End-to-end encryption policies must take into account everything from input to output and storage. Encryption technology is divided into five categories: file-level or folder-level encryption, volume or partition encryption, media-level encryption, field-level encryption and communication content encryption. They can be defined further by the encryption key storage mechanism. Let's take a look at the grim forecast: According to the US Privacy information exchange, One-third of the U.S. people will encounter the loss or leakage of personally identifiable information from companies that store data electronically this year. Whether that number is not exactly right, anyway the public knows the data leaks ...

We know that PGP (pretty) is the most popular kind of encryption software at present, it is a mail encryption software based on RSA public key encryption system. We can use it to keep the message confidential to prevent unauthorized reading, and it can also digitally sign the user's message so that the recipient can be sure of the sender's identity. It allows users to communicate securely with people they have never seen before, without requiring any secrecy to pass the key, because it uses an asymmetric "public key" and "private key" encryption system. But PGP is not a completely asymmetric addition ...

"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 ...

Recent learning URL jump when new into three PHP encryption and decryption function is very good, looks like the discuz ... Use these encryption to decrypt the reason is because sometimes their own URL address was acquired after you want to break inside the value of the content you must know your key, no key, he should be broken for a while to know the content of your URL. Pack them into a file called fun.php bar <?php function Passport_encrypt ...

1. Firewall Technology "Firewall" is a kind of image, in fact it is a combination of computer hardware and software, so that the Internet and the intranet to establish a security gateway (Scurity Gateway), while protecting the intranet from the intrusion of illegal users. The so-called firewall is a barrier that separates the Internet from the intranet. Firewalls are available in two categories, standard firewalls, and two-home gateways. The standard firewall system includes a UNIX workstation that buffers each router at each end of the workstation. One of the routers interface is the external world, that is, the public network;

2014 is the electricity Shang, this year the domestic electric power trader ushered in the history biggest "the market year"--Jingdong and Alibaba successively listed, "Double 11" to create more than the expected turnover of 57.1 billion yuan, cross-border electricity dealers in particular, cross-border imports of electricity dealers emerging, mobile electric business explosion, micro-business emergence, ... In the coming 2014, the electrical business gradually matured. Keyword one: May 16, the listing of the United States excellent products listed on the NYSE, May 22, Beijing-east on the Nasdaq listing. September 19, Alibaba listed on the NYSE, financing 25 billion U.S. dollars into ...

Blockchain is a new technology that is gradually emerging with the increasing popularity of digital cryptocurrencies such as Bitcoin.

GPG, the GNU Privacy Guard, is a non-commercial version of cryptographic tool PGP (pretty), which is used to encrypt and authenticate emails, files, and other data to ensure the reliability and authenticity of communication data. This article will introduce the GPG technology and related tools, designed to help online surfers "sincere" communication. First, PGP overview before introducing GPG, let's take a look at the basic principles and application rules of PGP. Like many encryption methods, PGP uses double keys to ...

Moving security controls such as public key infrastructure to cloud computing can be a real cost savings, but is cloud computing security strong enough to ensure its security? When you consider the different components of a PKI-based system, the public key infrastructure is clearly gaining a meaningful foothold in the IT field. From certificate licensing to certificate revocation lists to the registration structure, it is very obvious that ensuring the security of communications within a PKI environment is a very computational resource-intensive task. In view of this, the phase ...

1, open Outlook Express, write a letter to the partner, the content for Hello world! 2, before sending, select all the contents of the message, right-click the taskbar in the PGP Encryption icon 3, select the current window>encrypt, encrypt the message, the results are as follows: 498 this.width=498; ' OnMouseWheel = ' javascript:return big (thi ...