The necessity of database encryption large database management system platform is typically Windows NT and Unix, these operating system security level is usually C1, C2 level. They have user registration, user identification, Arbitrary access control (DAC), audit and other security functions. Although the DBMS on the basis of the OS added a number of security measures, such as access control based on permissions, but the OS and DBMS on the database file itself is still lack of effective protection measures, experienced online hackers will "bypass", directly using the OS tools to steal or tamper with the database files ...
Every day, the world due to software piracy caused by the loss of not less than 50 million U.S. dollars, even in the so-called legal system of the most perfect in the United States, piracy rate of up to 21 (data from IDC). Software piracy has become a major test of the survival of the software industry, and encryption has become a helpless choice. If the anti-virus technology update is driven by the virus manufacturer, then, the software encryption industry is a game with the decryption, but also promote the market demand for the development of the industry. In the initial encryption process, most of the software used by the soft encryption method, the main ...
Data security has been a source of concern since 2005, when Bank of America encrypted tapes were lost, resulting in a large disclosure of customer data. Before that, some of the bank's system administrators thought that tape encryption devices were too expensive, and some administrators thought that data encryption was like insurance, not the first thing to do, and that some administrators ran aground because they didn't know whether to buy backup software or buy security software. The US bank leaked customer data in violation of local law, but the Specter-leahy Law stipulates safe data and passenger ...
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 ...
In modern society, e-mail and file transfer on the network has become a part of life, the security of the message is increasingly prominent. It is well known that the data transmitted over the Internet is usually unencrypted, and if you do not protect your important information, the third party will easily gain your privacy. Another problem is information authentication, that is, how to convince the recipient that the message has not been tampered with by a third person, which requires digital signature technology. PGP is such a product. Pgp--pretty is a Privacy based RSA public key encryption ...
Research on large data encryption algorithm based on data redundancy technology the main research contents and innovations of the thesis of Wang Misty in North China Water Conservancy and hydropower University include: 1. General encryption model of large data and the principle of encryption technology. Based on the systematic study of the basic characteristics of large data and the general encryption model, this paper deeply analyzes the technical principle and advantages and disadvantages of the four kinds of large data encryption schemes based on modern cryptography, bioengineering, attribute based and parallel computing. 2. A large data redundancy algorithm based on Bloom filter technique is proposed. According to large data information ...
"3" is a very mysterious number, in the digital application also has a "magical" status. Light has "three" elements, Water has a "three" state, three points of the triangle and many points constitute the triangle body is considered the most stable shape. In more everyday life, the number of "3" is more frequent. It is a symbol of nature and stability, "three" in the field of information security also has a magical role. Law, cloud technology, encryption software in the rapid development of information technology today, information, data security problems are more and more prominent. But to sum up, today's data security problems are mainly ...
First, generally speaking, encryption is the shell we often consider, an executable file, how to encrypt to be safe? The usual means is the Packers. The working principle of the Shell tool is to encrypt the code and data of the executable file as data storage. The generated target file entry code is the anti-trace code prepared by the Packers software. After a long code, the code of the original executable file and the Data section restore, and then jump to the original entrance, continue to run. The disadvantage of this is that no matter how strong your encryption, anti-tracking code more cattle, as long as a running, in ...
Cloud computing technology to provide users with multi-functional, personalized service at the same time, it is also easy to cause the user's personal privacy data leaked. The application provider stores the data information in the data center of a third-party cloud computing service provider, and users access the data information through a variety of third-party excuses provided by the cloud services provider. In the process of data access, cloud computing service providers play a key role in the effective protection of users ' privacy data security has a direct impact. In the Cloud Computing Application service mode, the user privacy data and the traditional personal privacy information have a big difference, how to effectively protect the user's personal privacy ...
With the emergence of new channels and technologies such as social networks, mobile computing and sensors, a large number of new data have emerged. We live in an era of exponential growth in data, and conventional technology has struggled to cope with the massive amount of data at PB (1024TB) levels. We have entered the era of diversified data. How do we deal with such a large data structure and the age of unstructured information? "The advent of the big data age is beyond doubt," he said, as he interviewed Teradata, Stephen Brobst Baoliming, chief technical officer. Only those ...
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