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[REVS] Anti Brute Force Resource Metering

Subject: [REVS] Anti Brute Force Resource Metering
Date: 23 Mar 2005 12:06:13 +0200
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  Anti Brute Force Resource Metering
------------------------------------------------------------------------


SUMMARY

The below linked whitepaper discusses how resource metering on the 
client-side, i.e. making him work to make brute forcing computationally 
feasible, works and the security advantages it can bring.

DETAILS

Abstract:
Web-based applications authentication processes are frequently vulnerable 
to automated brute force guessing attacks. Whilst commonly proposed 
solutions make use of escalating time delays and minimum lockout threshold 
strategies, these tend to prove ineffectual in real attacks and may 
actually promote additional attack vectors.

Resource metering through client-side computationally intensive 
"electronic payments" can provide an alternative strategy in defending 
against brute force guessing attacks.


ADDITIONAL INFORMATION

The information has been provided by  <mailto:gunter@ngssoftware.com> 
Gunter Ollmann.
The original article can be found at:  
<http://www.ngssoftware.com/papers/NISR-AntiBruteForceResourceMetering.pdf> 
http://www.ngssoftware.com/papers/NISR-AntiBruteForceResourceMetering.pdf



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