• Publications
  • Influence
Traveling the silk road: a measurement analysis of a large anonymous online marketplace
  • N. Christin
  • Computer Science, Business
  • WWW '13
  • 30 July 2012
TLDR
We perform a comprehensive measurement analysis of Silk Road, an anonymous, international online marketplace that operates as a Tor hidden service and uses Bitcoin as its exchange currency. Expand
  • 514
  • 87
  • PDF
Measuring the Longitudinal Evolution of the Online Anonymous Marketplace Ecosystem
TLDR
We present a long-term measurement analysis of a large portion of this online anonymous marketplace ecosystem, including 16 different marketplaces, over more than two years (2013- 2015). Expand
  • 266
  • 57
  • PDF
Guess Again (and Again and Again): Measuring Password Strength by Simulating Password-Cracking Algorithms
TLDR
We develop an efficient distributed method for calculating how effectively several heuristic password-guessing algorithms guess passwords. Expand
  • 376
  • 31
  • PDF
Of passwords and people: measuring the effect of password-composition policies
TLDR
We characterize the predictability of passwords by calculating their entropy, and find that a number of commonly held beliefs about password composition and strength are inaccurate. Expand
  • 347
  • 26
  • PDF
Fast, Lean, and Accurate: Modeling Password Guessability Using Neural Networks
TLDR
We propose using artificial neural networks to model text passwords' resistance to guessing attacks and explore how different architectures and training methods impact neural networks' guessing effectiveness. Expand
  • 142
  • 24
  • PDF
Encountering stronger password requirements: user attitudes and behaviors
TLDR
A new password policy at Carnegie Mellon University requires users to create a complex password, but most users believe that they are now more secure. Expand
  • 312
  • 23
  • PDF
Measuring Real-World Accuracies and Biases in Modeling Password Guessability
TLDR
We investigate how cracking approaches often used by researchers compare to real-world cracking by professionals, as well as how the choice of approach biases research conclusions. Expand
  • 128
  • 22
  • PDF
How Does Your Password Measure Up? The Effect of Strength Meters on Password Creation
TLDR
We present a 2,931-subject study of password creation in the presence of 14 password meters. Expand
  • 270
  • 21
  • PDF
Toward a general collection methodology for Android devices
TLDR
The Android platform has been deployed across a wide range of devices, predominately mobile phones, bringing unprecedented common software features to a diverse set of devices independent of carrier. Expand
  • 162
  • 18
  • PDF
Push-Button Verification of File Systems via Crash Refinement
TLDR
This paper presents Yggdrasil, a toolkit for writing file systems with push-button verification. Expand
  • 65
  • 16
  • PDF