A Pair Of Keys

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 ...

In addition to the "normal" file, HDFs introduces a number of specific file types (such as Sequencefile, Mapfile, Setfile, Arrayfile, and bloommapfile) that provide richer functionality and typically simplify data processing. Sequencefile provides a persistent data structure for binary key/value pairs. Here, the different instances of the key and value must represent the same Java class, but the size can be different. Similar to other Hadoop files, Sequencefil ...

MapReduce: Simple data processing on large cluster

ASCII Armor ASCII encoding, encoding binary files with 7bits of display ASCII code, which can be passed in only 7bits-supported emails. The MIME BASE-64 encoding is used in PGP. ciphertext ciphertext; Encrypted later information, generally unrecognized. Cryptanalysis analysis of cryptography, from the point of view of cryptography to find a loophole and attack it, PGP in cryptography is still quite solid. Even Hack ...

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 ...

E-Mail has become the most convenient way of communication in the Internet age, because of the freedom of the Internet, so the security of the mail is becoming more and more prominent. Today, with the popularity of the Internet, e-mail is becoming more and more popular, open a book or magazine newspaper, have an e-mail address, even the ads are marked with e-mail address; this has become a fashion, the most convenient way to communicate in the Internet era, save money, fast. It is because of the freedom of the Internet, so the security of the message is increasingly prominent. e-mail Message delivery, general ...

class= "Post_content" itemprop= "Articlebody" > Smartisan, or the name of the hammer phone, may be unfamiliar to ordinary consumers who are less concerned with digital. Hammer-Phone development company for Hammer Technology, the new mobile phone hardware business, the company launched a more than a year ago based on the Android Smartisan OS, about this comment polarized system, we slightly ...

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 ...

The key may be the most important concept in PGP. A PGP key is a public key pair created by a user for a specific target. Generally speaking, a user creates a key to make a general connection with other people. All outgoing messages are signed with this key, and all incoming messages are decrypted with this key. There may be some confusion in key management at the beginning. The following sections describe the purpose and use of the key. 1. What is the first name? The previous example shows how easy it is to produce a key, and how easy it is to put any name in the key. This example illustrates the use of the name "Ruth Tho ..."

PGP is a mail encryption software based on RSA public key encryption system. You can use it to keep your emails secret to prevent unauthorized reading, and it can also digitally sign your emails so that the recipient can be sure you sent them. It allows you to safely communicate with people you've never met before, and you don't need any confidential channels to pass the keys. It uses: Prudent Key management, a RSA and traditional encryption of the hybrid algorithm for digital signature of the message digest algorithms, encryption, and so on, there is a good ergonomics design. It's powerful and fast. And...