Aes Hash

1 Introduction e-mail plays an important role in people's work. According to statistics, the average Chinese per user receives 4.4 mails a week, sends 3.6 emails. But the primary protocol for e-mail, such as SMTP, is delivered in plaintext. This information may be obtained by a third party when it passes through an untrusted internet. In a modern society that attaches importance to information security, it clearly meets the requirements. How can this information be kept confidential without tampering or forgery? The PGP (Pretty-Privacy) described in this article is a kind of software, which is mainly used for electric ...

Today's market has a large number of public cloud storage services, many services require customer registration. In return for registration, many vendors also offer free cloud storage capacity. Using the 12 public cloud storage services listed in this article, you can theoretically get 112GB of free cloud storage capacity. But not all services are the same. Each service has its advantages and disadvantages, such as how much files can be uploaded? How much does it cost to extend the cloud storage space? What operating systems and mobile applications can be integrated? Of course, consider the security of each service. Listed below ...

As IP Voice (VoIP) technology continues to spread across the global telecommunications market, performance improvements, cost reductions, and functional support for service providers, device manufacturers, and end-users make VoIP an attractive thing. With increasing interest in VoIP, the security of voice communications is likely to evolve into a key requirement for VoIP solutions. Packet-based communications are particularly vulnerable to security risks, including packet monitoring of voice "eavesdropping", the use of unpaid service to forge network IDs, and manipulation of data packets.

The two-day RSA 2010 conference ended in Beijing, but many in the industry and Internet security enthusiasts are still feeling the meaning of the end. So, 51CTO as a guest media, the General Assembly of the relevant reports. Here we'll tidy up the wonderful speeches in the conference. The following is a lecture by Assistant professor Haibo of the Institute of Parallel Processing, Fudan University, on the subject of the application of the trustworthy structure in the privacy and security of cloud computing services. See the RSA 2010 Information Security International Forum feature for more details. Haibo: Good afternoon! I am Chen from Fudan University.

At present, blockchain technology is in an era of blooming and arguing, and various blockchains have emerged. Interoperability between blockchains has become a very important and urgent need.

The biggest technological revolution in the IT field in recent years has been the technology of cloud computing. The architecture and implementation of this new IT service based on cloud computing technology, all IT infrastructures will be virtualized to deliver the required software, data and storage services via the Internet, based on the needs of the user, in the language of cloud computing: SaaS, Software as services, PaaS, platform-Services, IaaS, Architecture is service. Cloud computing technology will revolutionize network video surveillance applications, that is, video service, VSaaS. This will greatly reduce users ' learning it ...

GPG (GnuPG) 1.4.2Copyright (C) Software Foundation, inc.this program comes with absolutely NO WARRANTY. This is free software, and your are welcome to redistribute itunder certain ...

WinRAR is a powerful compressed file manager that provides full support for RAR and zip files to extract arj, CAB, LZH, ACE, TAR, GZ, UUE, BZ2, JAR, ISO format files. Days ago, the seventh beta release of WinRAR 5.0, which mainly fixes minor bugs that existed in previous versions, such as: WinRAR cannot create the necessary directory structure to store hard links, so if the file contains a hard link that does not exist, then the decompression will be an error;

Introduction Cloud application developers and DevOps have successfully developed tens of thousands of applications for IaaS (Amazon AWS, Rackspace, etc.) and PAAs (Azure, Google App Engine, Cloud Foundry, etc.) platforms. These platforms provide basic security mechanisms such as authentication, Dos attack defense, firewall policy Management, logging, basic user and account management, but security concerns remain the primary obstacle to enterprise cloud implementations. Security concerns for the cloud, deploying from a secure configuration ...