# Differential power analysis

﻿
Differential power analysis

## Analyse de consommation (cryptographie)  En cryptanalyse de matériel cryptographique, l'analyse de consommation consiste à étudier les courants et tensions entrants et sortants d'un circuit dans le but de découvrir des informations secrètes comme la clé de chiffrement. Certaines opérations, plus coûteuses, augmentent la consommation électrique du circuit, notamment par l'utilisation de plus de composants (analogiques ou logiques). Cette analyse des variations et des pics permet de tirer des informations précieuses pour le cryptanalyste.

## Analyse différentielle de la consommation

Ce document provient de « Analyse de consommation (cryptographie) ».

Wikimedia Foundation. 2010.

### Regardez d'autres dictionnaires:

• Power analysis — For power analysis in statistics, see Statistical power. A diagram of differential power analysis …   Wikipedia

• analysis — /euh nal euh sis/, n., pl. analyses / seez /. 1. the separating of any material or abstract entity into its constituent elements (opposed to synthesis). 2. this process as a method of studying the nature of something or of determining its… …   Universalium

• Differential geometry — A triangle immersed in a saddle shape plane (a hyperbolic paraboloid), as well as two diverging ultraparallel lines. Differential geometry is a mathematical discipline that uses the techniques of differential and integral calculus, as well as… …   Wikipedia

• Power supply — For the Budgie album, see Power Supply (album). A vacuum tube rackmount adjustable power supply, capable of +/ 1500 volts DC, 0 to 100mA output, with amperage limiting capability. A power supply is a device that supplies electrical energy …   Wikipedia

• Differential capacitance — in physics, electronics, and electrochemistry is a measure of the voltage dependent capacitance of a nonlinear capacitor, such as an electrical double layer or a semiconductor diode. It is defined as the derivative of charge with respect to… …   Wikipedia

• Differential (infinitesimal) — For other uses of differential in calculus, see differential (calculus), and for more general meanings, see differential. In calculus, a differential is traditionally an infinitesimally small change in a variable. For example, if x is a variable …   Wikipedia

• Differential geometry of surfaces — Carl Friedrich Gauss in 1828 In mathematics, the differential geometry of surfaces deals with smooth surfaces with various additional structures, most often, a Riemannian metric. Surfaces have been extensively studied from various perspectives:… …   Wikipedia

• Differential equation — Not to be confused with Difference equation. Visualization of heat transfer in a pump casing, created by solving the heat equation. Heat is being generated internally in the casing and being cooled at the boundary, providing a steady state… …   Wikipedia

• Differential analyser — This article is about analogue differential analysers. For the digital implementation, see Digital Differential Analyzer. Thomson disc and sphere analyser for studying tides The differential analyser is a mechanical analogue computer designed to… …   Wikipedia

• Differential form — In the mathematical fields of differential geometry and tensor calculus, differential forms are an approach to multivariable calculus that is independent of coordinates. Differential forms provide a better[further explanation needed] definition… …   Wikipedia