Applying Cryptography to Overcome Attacks
Question
Which of the following attacks can be overcome by applying cryptography?
Answers
Explanations
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A. B. C. D.C.
Cryptography is the science of securing information by transforming it into an unreadable format that can only be understood by authorized parties. Cryptography is used to protect information from unauthorized access, interception, or modification. It can be used to protect data at rest, in transit, or in use.
Out of the given options, attacks that can be overcome by applying cryptography are:
C. Sniffing: Sniffing is the process of intercepting and capturing packets of data that are transmitted over a network. Sniffing attacks can be overcome by using encryption, which ensures that the data is unreadable to anyone except the intended recipient. By using encryption, the data is transformed into an unreadable format that can only be understood by the authorized recipient. This ensures that the data cannot be intercepted and read by an attacker.
D. Buffer Overflow: Buffer overflow is a type of attack in which an attacker exploits a vulnerability in a program that allows them to overwrite the memory allocated to a buffer, which can cause the program to crash or allow the attacker to execute arbitrary code. Cryptography cannot directly prevent buffer overflow attacks. However, cryptography can be used to protect sensitive data that is stored in memory. By encrypting the sensitive data, an attacker cannot obtain the plain text value of the data even if they manage to gain access to the memory.
On the other hand, the following attacks cannot be overcome by applying cryptography:
A. Web Ripping: Web ripping is the process of copying the entire contents of a website, including text, images, and other media. Cryptography cannot prevent web ripping as the attacker is able to access the website and copy the content without needing to decrypt it.
B. DoS: A Denial of Service (DoS) attack is a type of attack in which an attacker floods a system with traffic or requests to overload it and prevent legitimate users from accessing the system. Cryptography cannot prevent DoS attacks as they target the availability of a system rather than its confidentiality or integrity. DoS attacks can be prevented or mitigated by implementing network-level defenses, such as firewalls, intrusion detection and prevention systems, and load balancers.
