What is meant by side channel?

What is meant by side channel?

A side-channel attack is a security exploit that aims to gather information from or influence the program execution of a system by measuring or exploiting indirect effects of the system or its hardware — rather than targeting the program or its code directly.

What are side channel attacks in IOT?

Side channel attacks (SCA) exploit the information leakages in the system. The leakages can be related to timing, power, electromagnetic signals, sound, light, etc. These attacks can be used to retrieve any sensitive information from the device. They are most commonly used to target cryptographic devices.

What is a cache attack?

Cache attack — attacks based on attacker’s ability to monitor cache accesses made by the victim in a shared physical system as in virtualized environment or a type of cloud service.

What is a side channel attack example?

Side-channel attacks (SCAs) aim at extracting secrets from a chip or a system, through measurement and analysis of physical parameters. Examples of such parameters include supply current, execution time, and electromagnetic emission.

Is Steganography a side channel?

As an example, steganography. A side-channel is a channel that exists incidentally to the otherwise secure flow of data, and is described by Andrew Cooper.

How do side channel attacks work?

A side channel attack breaks cryptography by using information leaked by cryptography, such as monitoring the electromagnetic field (EMF) radiation emitted by a computer screen to view information before it’s encrypted in a van Eck phreaking attack, aka Transient Electromagnetic Pulse Emanation STandard (TEMPEST).

What is a side channel leak?

Definition(s): An attack enabled by leakage of information from a physical cryptosystem. Characteristics that could be exploited in a side-channel attack include timing, power consumption, and electromagnetic and acoustic emissions.

What is detected ARP cache poisoning attack?

An ARP spoofing, also known as ARP poisoning, is a Man in the Middle (MitM) attack that allows attackers to intercept communication between network devices. The attack works as follows: The attacker must have access to the network.

Are side channel attacks passive or active?

Both of these examples are passive side channels. Another option for side channel attacks is an active side channel exploit. An example from crypto history would be to try to get the enemy to encrypt a known message with their system. Generally, passive attacks are attacks that only observe the side-channel output.

What is the goal of encryption?

The purpose of encryption is confidentiality—concealing the content of the message by translating it into a code. The purpose of digital signatures is integrity and authenticity—verifying the sender of a message and indicating that the content has not been changed.

Which of the following attacks uses side channel?

Other well-known side channel attacks include spying on the power consumption of an electronic device to steal an encryption key, or acoustic attacks that record the sound of a user’s key strokes to steal their passphrase. These side channel attacks are not theoretical and have been known about for decades.