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Antenna Theory for Wardriving and Penetration Testing
Introduction Wardriving is an activity in which a person seeks wireless access points in moving vehicles with high gain antennas mounted on the top. Usually, this access point data is correlated with...
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TrueCrypt Security: Securing Yourself against Practical TrueCrypt Attacks
The need to defend confidentiality of our sensitive information against persistently rising cyber threats has turned most of us toward using encryption on a daily basis. This is facilitated by...
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Wi-Fi Security: Securing Yourself against Practical Wireless Attacks
While the access points in organizations are usually under the protection of organization-wide security policies, home routers are less likely to be appropriately configured by their owners in absence...
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Solutions to Net-Force Steganography CTF Challenges
Steganalysis refers to the process of locating concealed messages inside seemingly innocuous ‘containers’. The idea behind steganography is embedding plaintext messages in places where an unsuspecting...
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Solutions to net-force cryptography CTF challenges
Cryptanalysis refers to the study of ciphers with the objective of breaking the code and obtaining plaintext (sensible) information. While older cryptosystems such as Caesar cipher depended on the...
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Defeating Conundrums: Solutions to Net-Force Internet CTF Challenges
About Net-Force Internet Challenges These challenges require that you provide the correct passwords that are revealed to you after solving them. The challenges are arranged in order of increasing...
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The Pitfalls of Client-Side Authentication: Solutions to Net-Force JavaScript...
Client-side authentication is when authentication checks are performed completely at users’ side. The idea is that the authentication procedures, methods, or codes are delivered to the client, where...
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Lessons from Deficient Java Applet-based Authentication
Java Applets are bytecodes that are delivered via the browser, and executed using the Java Virtual Machine (JVM) at the client-side. Java Applets can access the 3D hardware acceleration, which makes...
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The Perils of Inadequate Key Size in Public Cryptosystems
A public-key cryptosystem is an asymmetric cryptosystem where the public key and the private key form a mathematically related key pair. The public key acts as an encryption key whereas the private key...
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Exploiting Vulnerable Systems
Exploits are specially crafted to take advantage of specific security vulnerabilities that are discovered after the vulnerability assessment phase. Exploitation is a part of penetration testing where...
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