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数据库的安全:多样化的加密方式

论文作者:www.51lunwen.org论文属性:作业 Assignment登出时间:2013-09-17编辑:yangcheng点击率:3640

论文字数:1388论文编号:org201309131637256478语种:英语 English地区:中国价格:免费论文

关键词:数据库安全加密方式数据加密

摘要:面对各种各样的攻击,尽管数据库系统采取了各种保护措施来防止数据库的安全性和完整性被破坏,保证并发事务的正确执行,但故障仍是不可避免的。因此,数据库的备份与恢复成为一项不可忽视的非常重要的系统管理工作,是整个安全的基础之一。进行数据库备份和恢复能增强系统可靠性,最大限度地减少因硬件、软件故障而造成数据丢失。

数据面临着大量的安全威胁。对于一些军事机密数据库、经济数据等,我们必须采取必要的措施,防止它人非法窃取、篡改。目前数据加密是保证数据安全的最广、相对最可靠的方法,它是数据保护在技术上最重要的防线。数据加密[16]是保护数据在存储和传递过程中不被窃取或修改的有效手段。

Data facing a lot of security threats. For some military secrets database , economic data, etc. , we must take the necessary measures to prevent its illegal theft, tampering. Data encryption is currently the most widely used to ensure data security , relatively the most reliable method, which is technically the most important data protection of defense. Data encryption [ 16 ] is to protect the data storage and transfer process is not stolen or modified effective means. The basic idea is to want to send a message through a variety of transformed vectors form for storage and transport , authorized recipients recover plaintext with the corresponding transformation , those who are not lawful intercept the plaintext is not visible or do not understand, so as to achieve information security purposes. Data encryption system includes different parts of the system to choose what encryption algorithm, encryption size selection , how high the level of security required , the method can collaborate among other factors. In different parts of the system to perform efficient and comprehensive consideration of the balance between security .


其次可以使用不同的加密方法。比如用椭圆曲线密码体制(ECC),其依据就是定义在椭圆曲线点群上的离散对数问题的难解性,从而增强数据库数据的安全性,目前还没有有效的攻击破解方法。关于数据库加密的相关知识在下面将详细介绍。

Second, you can use a different encryption method. Such as using elliptic curve cryptography (ECC), which is defined in accordance with point group on the elliptic curve discrete logarithm intractability of the problem , thereby enhancing the security of the database data , there is no effective attack cracking method. Knowledge about database encryption are described in detail below .


数据库备份是DBA定期地将整个数据库复制到磁带或另一个磁盘上保存起来的过程。这些保存到设备上的数据文本就是后备副本。当数据库遭到破坏后就可以利用后备副本来恢复数据库。网络数据备份策略主要包括全备份、增量备份、差分备份三种方式。

DBA is a database backup the entire database periodically copied to tape or another disk saved in the process . These saved data on the device is a backup copy of the text . When the database is corrupted after the backup copy can be used to restore the database . Network data backup strategy including full backup, incremental backup , differential backup in three ways.

Now use the network system to handle daily operations to improve work efficiency, system and data security issues have become increasingly prominent. Once the system crashes or data loss, users or companies will be in trouble . Customer information , technical documents , financial accounts and other data may be destroyed beyond recognition, can cause serious system and data can not be recovered , the result is disastrous.

The best solution to solve these problems is for data backup , backup technology is that once the main purpose of a system crash or data loss , you can use the backup system and data for timely recovery , so to minimize the loss . Modern technology involves backup objects backup the operating system , application software and its data. To conduct a comprehensive backup , not simply copying files . A complete system backup solution should backup hardware , backup software , daily backup system and disaster recovery measures four parts. Select the backup hardware and backup software, you also need the user's specific conditions daily backup system and disaster recovery measures论文英语论文网提供整理,提供论文代写英语论文代写代写论文代写英语论文代写留学生论文代写英文论文留学生论文代写相关核心关键词搜索。

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