Question

which of the following is true for power analysis attack? ​

Answer 1

Answer:

In cryptography, power analysis is a form of side channel attack in which the attacker studies the power consumption of a cryptographic hardware device (such as a smart card, tamper-resistant "black box", or integrated circuit). The attack can non-invasively extract cryptographic keys and other secret information from the device.

Simple power analysis (SPA) involves visually interpreting power traces, or graphs of electrical activity over time. Differential power analysis (DPA) is a more advanced form of power analysis, which can allow an attacker to compute the intermediate values within cryptographic computations through statistical analysis of data collected from multiple cryptographic operations. SPA and DPA were introduced to the open cryptology community in 1998 by Paul Kocher, Joshua Jaffe and Benjamin Jun.[1]

Answer 2

In cryptography power evaluation or analysis seems to be a type of sides channels assault under which the intruder analyses a computational hardware equipment's power efficiency.

Explanation:

Anti-invasively the assault will collect cryptographic keys and certain other sensitive authentication tokens.

• Simple power assessment (SPA) includes the visual representation of power signatures or electrical impulses charts throughout the period.
• Differential Power Analysis (DPA) would be a more sophisticated type of analysis that could also enable an intruder to measure the integral values throughout cryptographic calculations by statistically analyzing data obtained from several operations.

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