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Security evaluation of pattern classifiers under attack
1. SECURITY EVALUATION OF PATTERN CLASSIFIERS
UNDER ATTACK
ABSTRACT:
Pattern classification systems are commonly used in
adversarial applications, like biometric authentication, network
intrusion detection, and spam filtering, in which data can be
purposely manipulated by humans to undermine their operation.
As this adversarial scenario is not taken into account by classical
design methods, pattern classification systems may exhibit
vulnerabilities, whose exploitation may severely affect their
performance, and consequently limit their practical utility.
Extending pattern classification theory and design methods to
adversarial settings is thus a novel and very relevant research
direction, which has not yet been pursued in a systematic way.
In this paper, we address one of the main open issues: evaluating
at design phase the security of pattern classifiers, namely, the
performance degradation under potential attacks they may incur
during operation. We propose a framework for empirical
2. evaluation of classifier security that formalizes and generalizes
the main ideas proposed in the literature, and give examples of
its use in three real applications. Reported results show that
security evaluation can provide a more complete understanding
of the classifier’s behavior in adversarial environments, and lead
to better design choices.
EXISTING SYSTEM:
PATTERN classification systems based on machine
learning algorithms are commonly used in security-related
applications like biometric authentication, network intrusion
detection, and spam filtering, to discriminate between a
“legitimate” and a “malicious” pattern class (e.g., legitimate and
spam emails). Contrary to traditional ones, these applications
have an intrinsic adversarial nature since the input data can be
purposely manipulated by an intelligent and adaptive adversary
to undermine classifier operation. This often gives rise to an
arms race between the adversary and the classifier designer.
Well known examples of attacks against pattern classifiers are:
3. submitting a fake biometric trait to a biometric authentication
system (spoofing attack); modifying network packets belonging
to intrusive traffic to evade intrusion detection systems (IDSs) ;
manipulating the content of spam emails to get them past spam
filters (e.g., by misspelling common spam words to avoid their
detection). Adversarial scenarios can also occur in intelligent
data analysis and information retrieval; e.g., a malicious
webmaster may manipulate search engine rankings to artificially
promote her website.
DISADVANTAGES OF EXISTING SYSTEM:
· They exhibit vulnerabilities to several potential attacks,
allowing adversaries to undermine their effectiveness.
· It focused on application-specific issues related to spam
filtering and network intrusion detection.
PROPOSED SYSTEM:
First, to pursue security in the context of an arms race it is
not sufficient to react to observed attacks, but it is also necessary
4. to proactively anticipate the adversary by predicting the most
relevant, potential attacks through a what-if analysis; this allows
one to develop suitable countermeasures before the attack
actually occurs, according to the principle of security by design.
Second, to provide practical guidelines for simulating realistic
attack scenarios, we define a general model of the adversary, in
terms of her goal, knowledge, and capability, which
encompasses and generalizes models proposed in previous work.
Third, since the presence of carefully targeted attacks may affect
the distribution of training and testing data separately, we
propose a model of the data distribution that can formally
characterize this behavior, and that allows us to take into
account a large number of potential attacks; we also propose an
algorithm for the generation of training and testing sets to be
used for security evaluation, which can naturally accommodate
application-specific and heuristic techniques for simulating
attacks.
5. ADVANTAGES OF PROPOSED SYSTEM:
· It predicts the most relevant, potential attacks through a
what-if analysis.
· It provides practical guidelines for simulating realistic
attack scenarios.
SYSTEM CONFIGURATION:-
HARDWARE REQUIREMENTS:-
Processor - Pentium –IV
Speed - 1.1 Ghz
RAM - 512 MB(min)
Hard Disk - 40 GB
Key Board - Standard Windows Keyboard
Mouse - Two or Three Button Mouse
Monitor - LCD/LED
6. SOFTWARE REQUIREMENTS:
• Operating system : Windows XP
• Coding Language : Java
• Data Base : MySQL
• Tool : Net Beans IDE
REFERENCE:
Battista Biggio, Giorgio Fumera, and Fabio Roli, “Security Evaluation of Pattern
Classifiers under Attack” IEEE TRANSACTIONS ON KNOWLEDGE AND
DATA ENGINEERING, VOL. 26, NO. 4, APRIL 2014.
7. SOFTWARE REQUIREMENTS:
• Operating system : Windows XP
• Coding Language : Java
• Data Base : MySQL
• Tool : Net Beans IDE
REFERENCE:
Battista Biggio, Giorgio Fumera, and Fabio Roli, “Security Evaluation of Pattern
Classifiers under Attack” IEEE TRANSACTIONS ON KNOWLEDGE AND
DATA ENGINEERING, VOL. 26, NO. 4, APRIL 2014.