10/02/2019

澳洲查尔斯达尔文大学论文代写:互联网时间同步机制的弱点

墨尔本论文代写

澳洲查尔斯达尔文大学论文代写:互联网时间同步机制的弱点

互联网时间同步机制中一些严重措施的弱点,可能会被利用,导致比特币交易受到篡改、监听加密通信,并导致系统瘫痪。更糟糕的是,可能会出现绕过关键安全措施或窥探加密流量的攻击。这样的例子是防止篡改域名系统记录的DNSSEC规范。这种情况涉及HTTPS加密绕过,迫使计算机接受已过期的传输层安全证书(Cortada, 2005)。恶意的行动者可以利用这些攻击在互联网上制造浩劫。攻击一直阻止敏感服务器和计算机接收定时同步更新(Caballero, 2009)。这可能是大规模故障的原因。在一些情况下,这种与拒绝服务相关的攻击甚至可以在攻击者偏离路径的位置进行。这意味着黑客不需要监控NTP服务器和计算机之间的通信(Wright and Harmening, 2009)。

澳洲查尔斯达尔文大学论文代写:互联网时间同步机制的弱点
除了DNSSEC和HTTPS之外,还有其他安全措施,包括HTTP严格的传输安全。NTP (Network Time Protocol,网络时间协议)也可以通过拒绝官方区块链的合法比特币条目来攻击比特币用户。它还可以篡改网站使用的认证系统。NTP中存在漏洞。在确保内部时钟的准确性方面,NTP在计算机规范中的应用范围很广。然而,令人惊讶的是,NTP服务器和计算机之间的连接并不经常进行加密(Sanaei et al., 2013)。这可以使黑客在执行攻击的人在中间,重置时钟的时间,可以在过去几年(Cortada, 2007)。研究人员描述了一些绕过措施的技术,这些措施的设计是防止多台计算机成功地与同步服务器连接。

澳洲查尔斯达尔文大学论文代写:互联网时间同步机制的弱点

Some weaknesses of serious measures in the mechanisms of time-synchronization in internet is likely to be exploited in causing tampering with Bitcoin transactions, snooping on communications which are encrypted, and debilitating outages. What can be worse is that there can be attacks using to bypassing key measures of security or snooping on traffic that is encrypted. The examples of such are DNSSEC specification that prevents the tamper of the system records of the domain name. The scenario can be troubling involving HTTPS encryption bypassing that forces a computer to accepting the transport layer security certificate that has expired (Cortada, 2005). The malicious actors can use the attacks in wreaking havoc on the internet. The attack has been preventing the sensitive servers and the computers from receiving updates of regular time-synchronization (Caballero, 2009). This can be the cause of a mass scale malfunction. In several cases, such hacks related to the denial-of-service can be done even at times off path position of the attackers. This means there is no need for the hacker of having ability for monitoring traffic passing between a NTP server and a computer (Wright and Harmening, 2009).

澳洲查尔斯达尔文大学论文代写:互联网时间同步机制的弱点
Apart from DNSSEC and HTTPS, there can be defeating of the other security measures as well including HTTP strict transport security. The NTP (Network Time Protocol) can also be attacked using the users of Bitcoin by the rejection of official blockchain’s legitimate entries for the digital currency. It can also be tampering with systems of authentication that the websites use. There is residing of the vulnerabilities in the NTP. There is a wide range of usage of NTP in relation to the computer specification in ensuring the accuracy of the internal clocks. However, it is a surprise that connections between the NTP servers and the computers do not undergo encryption often (Sanaei et al., 2013). This can make it possible to the hackers in performing the attacks with man-in-the-middle, resetting clocks in relation to the times that can be years in the past (Cortada, 2007). The researchers have given descriptions with respect to a number of techniques for bypassing measures that have the designing of preventing several computers from connecting successfully with the synchronization servers.

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