Key Exchange: Difference between revisions

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(Created page with "{{DISPLAYTITLE:Key Exchange (Key Exchange)}} == Description == Key exchange (also key establishment) is a method in cryptography by which cryptographic keys are exchanged between two parties, allowing use of a cryptographic algorithm. == Parameters == <pre>n: maximum size of numbers (prime, parameters, keys), in bits</pre> == Table of Algorithms == {| class="wikitable sortable" style="text-align:center;" width="100%" ! Name !! Year !! Time !! Space !! Approxima...")
 
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== Parameters ==  
== Parameters ==  


<pre>n: maximum size of numbers (prime, parameters, keys), in bits</pre>
n: maximum size of numbers (prime, parameters, keys), in bits


== Table of Algorithms ==  
== Table of Algorithms ==  

Revision as of 13:02, 15 February 2023

Description

Key exchange (also key establishment) is a method in cryptography by which cryptographic keys are exchanged between two parties, allowing use of a cryptographic algorithm.

Parameters

n: maximum size of numbers (prime, parameters, keys), in bits

Table of Algorithms

Name Year Time Space Approximation Factor Model Reference
Diffie–Hellman key exchange 1978 $O(mult(n)$*n) where mult(n) is running time on n-bit multiplication $O(n)$ Exact Deterministic Time
Elliptic-curve Diffie-Hellman (ECDH) 2006 $O(mult(n)$*n^{2})? where mult(n) is running time on n-bit multiplication $O(n)$ Exact Deterministic Time

Time Complexity graph

Key Exchange - Time.png

Space Complexity graph

Key Exchange - Space.png

Pareto Decades graph

Key Exchange - Pareto Frontier.png