Elements of information theory
Elements of information theory
Practical Unix and Internet security (2nd ed.)
Practical Unix and Internet security (2nd ed.)
Password security: a case history
Communications of the ACM
Error-tolerant password recovery
CCS '01 Proceedings of the 8th ACM conference on Computer and Communications Security
Doodling our way to better authentication
CHI '02 Extended Abstracts on Human Factors in Computing Systems
Safe and sound: a safety-critical approach to security
Proceedings of the 2001 workshop on New security paradigms
Securing passwords against dictionary attacks
Proceedings of the 9th ACM conference on Computer and communications security
Moving from the design of usable security technologies to the design of useful secure applications
Proceedings of the 2002 workshop on New security paradigms
Secure Network Management Within an Open-Source Mobile Agent Framework
Journal of Network and Systems Management
PassPoints: design and longitudinal evaluation of a graphical password system
International Journal of Human-Computer Studies - Special isssue: HCI research in privacy and security is critical now
International Journal of Human-Computer Studies - Special isssue: HCI research in privacy and security is critical now
Fast dictionary attacks on passwords using time-space tradeoff
Proceedings of the 12th ACM conference on Computer and communications security
Spy-resistant keyboard: more secure password entry on public touch screen displays
OZCHI '05 Proceedings of the 17th Australia conference on Computer-Human Interaction: Citizens Online: Considerations for Today and the Future
Designs, Codes and Cryptography
Password management strategies for online accounts
SOUPS '06 Proceedings of the second symposium on Usable privacy and security
SOUPS '06 Proceedings of the second symposium on Usable privacy and security
Pass-thoughts: authenticating with our minds
NSPW '05 Proceedings of the 2005 workshop on New security paradigms
Pictures at the ATM: exploring the usability of multiple graphical passwords
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Déjà Vu: a user study using images for authentication
SSYM'00 Proceedings of the 9th conference on USENIX Security Symposium - Volume 9
An open-source cryptographic coprocessor
SSYM'00 Proceedings of the 9th conference on USENIX Security Symposium - Volume 9
Security analysis of the palm operating system and its weaknesses against malicious code threats
SSYM'01 Proceedings of the 10th conference on USENIX Security Symposium - Volume 10
Graphical dictionaries and the memorable space of graphical passwords
SSYM'04 Proceedings of the 13th conference on USENIX Security Symposium - Volume 13
On user choice in graphical password schemes
SSYM'04 Proceedings of the 13th conference on USENIX Security Symposium - Volume 13
Security analysis of the palm operating system and its weaknesses against malicious code threats
SSYM'01 Proceedings of the 10th conference on USENIX Security Symposium - Volume 10
Modeling user choice in the PassPoints graphical password scheme
Proceedings of the 3rd symposium on Usable privacy and security
Graphical passwords & qualitative spatial relations
Proceedings of the 3rd symposium on Usable privacy and security
On predictive models and user-drawn graphical passwords
ACM Transactions on Information and System Security (TISSEC)
Do background images improve "draw a secret" graphical passwords?
Proceedings of the 14th ACM conference on Computer and communications security
Password management using doodles
Proceedings of the 9th international conference on Multimodal interfaces
PassShape: stroke based shape passwords
OZCHI '07 Proceedings of the 19th Australasian conference on Computer-Human Interaction: Entertaining User Interfaces
Eyepass - eye-stroke authentication for public terminals
CHI '08 Extended Abstracts on Human Factors in Computing Systems
A machine learning approach to keystroke dynamics based user authentication
International Journal of Electronic Security and Digital Forensics
Human-seeded attacks and exploiting hot-spots in graphical passwords
SS'07 Proceedings of 16th USENIX Security Symposium on USENIX Security Symposium
Exploring the feasibility of video mail for illiterate users
AVI '08 Proceedings of the working conference on Advanced visual interfaces
Centered discretization with application to graphical passwords (full paper)
UPSEC'08 Proceedings of the 1st Conference on Usability, Psychology, and Security
Improving text passwords through persuasion
Proceedings of the 4th symposium on Usable privacy and security
Securing passfaces for description
Proceedings of the 4th symposium on Usable privacy and security
Use Your Illusion: secure authentication usable anywhere
Proceedings of the 4th symposium on Usable privacy and security
Can "Something You Know" Be Saved?
ISC '08 Proceedings of the 11th international conference on Information Security
Action-based user authentication
International Journal of Electronic Security and Digital Forensics
POSH: a generalized captcha with security applications
Proceedings of the 1st ACM workshop on Workshop on AISec
A lightweight biometric signature scheme for user authentication over networks
Proceedings of the 4th international conference on Security and privacy in communication netowrks
PassShapes: utilizing stroke based authentication to increase password memorability
Proceedings of the 5th Nordic conference on Human-computer interaction: building bridges
WSEAS Transactions on Information Science and Applications
The design and implementation of background Pass-Go scheme towards security threats
WSEAS Transactions on Information Science and Applications
Background pass-go (BPG), a new approach for GPS
ICCOMP'08 Proceedings of the 12th WSEAS international conference on Computers
A user friendly password authenticated key agreement for multi server environment
Proceedings of the International Conference on Advances in Computing, Communication and Control
Image-Feature Based Human Identification Protocols on Limited Display Devices
Information Security Applications
VIP: a visual approach to user authentication
Proceedings of the Working Conference on Advanced Visual Interfaces
Guidelines for designing graphical authentication mechanism interfaces
International Journal of Information and Computer Security
Visual passwords: cure-all or snake-oil?
Communications of the ACM - Finding the Fun in Computer Science Education
The Impact of Image Choices on the Usability and Security of Click Based Graphical Passwords
ISVC '09 Proceedings of the 5th International Symposium on Advances in Visual Computing: Part II
Graphical passwords: drawing a secret with rotation as a new degree of freedom
AsiaCSN '07 Proceedings of the Fourth IASTED Asian Conference on Communication Systems and Networks
Computer Usage by Children with Down Syndrome: Challenges and Future Research
ACM Transactions on Accessible Computing (TACCESS)
Multi-touch authentication on tabletops
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
A graphical PIN authentication mechanism with applications to smart cards and low-cost devices
WISTP'08 Proceedings of the 2nd IFIP WG 11.2 international conference on Information security theory and practices: smart devices, convergence and next generation networks
The effect of baroque music on the PassPoints graphical password
Proceedings of the ACM International Conference on Image and Video Retrieval
A closer look at recognition-based graphical passwords on mobile devices
Proceedings of the Sixth Symposium on Usable Privacy and Security
Where do security policies come from?
Proceedings of the Sixth Symposium on Usable Privacy and Security
Secure passwords through enhanced hashing
LISA'09 Proceedings of the 23rd conference on Large installation system administration
A security class project in graphical passwords
Journal of Computing Sciences in Colleges
Kamouflage: loss-resistant password management
ESORICS'10 Proceedings of the 15th European conference on Research in computer security
A new human identification protocol and coppersmith's baby-step giant-step algorithm
ACNS'10 Proceedings of the 8th international conference on Applied cryptography and network security
Exploring usability effects of increasing security in click-based graphical passwords
Proceedings of the 26th Annual Computer Security Applications Conference
Smudge attacks on smartphone touch screens
WOOT'10 Proceedings of the 4th USENIX conference on Offensive technologies
Securing tests in E-learning environment
Proceedings of the 2011 International Conference on Communication, Computing & Security
Proceedings of the 6th ACM Symposium on Information, Computer and Communications Security
A new shoulder-surfing resistant password for mobile environments
Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
MARASIM: a novel jigsaw based authentication scheme using tagging
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Quantifying the quality of web authentication mechanisms: a usability perspective
Journal of Web Engineering
On designing usable and secure recognition-based graphical authentication mechanisms
Interacting with Computers
A hybrid graphical password based system
ICA3PP'11 Proceedings of the 11th international conference on Algorithms and architectures for parallel processing - Volume Part II
Facing the facts about image type in recognition-based graphical passwords
Proceedings of the 27th Annual Computer Security Applications Conference
PhorceField: a phish-proof password ceremony
Proceedings of the 27th Annual Computer Security Applications Conference
Shoulder surfing defence for recall-based graphical passwords
Proceedings of the Seventh Symposium on Usable Privacy and Security
Analysis and design of graphical password techniques
ISVC'06 Proceedings of the Second international conference on Advances in Visual Computing - Volume Part II
Journal of Systems and Software
Development and evaluation of no-record chat system against screen capture
KES'06 Proceedings of the 10th international conference on Knowledge-Based Intelligent Information and Engineering Systems - Volume Part III
Password exhaustion: predicting the end of password usefulness
ICISS'06 Proceedings of the Second international conference on Information Systems Security
CMS'10 Proceedings of the 11th IFIP TC 6/TC 11 international conference on Communications and Multimedia Security
Can background baroque music help to improve the memorability of graphical passwords?
ICIAR'10 Proceedings of the 7th international conference on Image Analysis and Recognition - Volume Part II
User authentication based on JPEG2000 images
VLBV'05 Proceedings of the 9th international conference on Visual Content Processing and Representation
Mobile token-based authentication on a budget
Proceedings of the 12th Workshop on Mobile Computing Systems and Applications
Touch me once and i know it's you!: implicit authentication based on touch screen patterns
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Graphical passwords: Learning from the first twelve years
ACM Computing Surveys (CSUR)
Goldilocks and the two mobile devices: going beyond all-or-nothing access to a device's applications
Proceedings of the Eighth Symposium on Usable Privacy and Security
Do you see your password?: applying recognition to textual passwords
Proceedings of the Eighth Symposium on Usable Privacy and Security
An enhanced drawing reproduction graphical password strategy
Journal of Computer Science and Technology - Special issue on Natural Language Processing
Exploration and field study of a password manager using icon-based passwords
FC'11 Proceedings of the 2011 international conference on Financial Cryptography and Data Security
NordSec'11 Proceedings of the 16th Nordic conference on Information Security Technology for Applications
Multi-touch passwords for mobile device access
Proceedings of the 2012 ACM Conference on Ubiquitous Computing
PassChords: secure multi-touch authentication for blind people
Proceedings of the 14th international ACM SIGACCESS conference on Computers and accessibility
Click passwords under investigation
ESORICS'07 Proceedings of the 12th European conference on Research in Computer Security
Graphical password authentication using cued click points
ESORICS'07 Proceedings of the 12th European conference on Research in Computer Security
Evaluating the effect of user guidelines on creating click-draw based graphical passwords
Proceedings of the 2012 ACM Research in Applied Computation Symposium
Password entry usability and shoulder surfing susceptibility on different smartphone platforms
Proceedings of the 11th International Conference on Mobile and Ubiquitous Multimedia
NAPTune: fine tuning graphical authentication
Proceedings of the 3rd International Conference on Human Computer Interaction
Video-passwords: advertising while authenticating
Proceedings of the 2012 workshop on New security paradigms
PassMap: a map based graphical-password authentication system
Proceedings of the 7th ACM Symposium on Information, Computer and Communications Security
WYSWYE: shoulder surfing defense for recognition based graphical passwords
Proceedings of the 24th Australian Computer-Human Interaction Conference
Multiple password interference in graphical passwords
International Journal of Information and Computer Security
Evaluating the effect of tolerance on click-draw based graphical password scheme
ICICS'12 Proceedings of the 14th international conference on Information and Communications Security
Preventing the revealing of online passwords to inappropriate websites with logininspector
lisa'12 Proceedings of the 26th international conference on Large Installation System Administration: strategies, tools, and techniques
Making graphic-based authentication secure against smudge attacks
Proceedings of the 2013 international conference on Intelligent user interfaces
MIBA: multitouch image-based authentication on smartphones
CHI '13 Extended Abstracts on Human Factors in Computing Systems
Back-of-device authentication on smartphones
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
ACM Transactions on Accessible Computing (TACCESS)
Improving user authentication on mobile devices: a touchscreen graphical password
Proceedings of the 15th international conference on Human-computer interaction with mobile devices and services
Proceedings of the 15th international conference on Human-computer interaction with mobile devices and services
Exploring the design space of graphical passwords on smartphones
Proceedings of the Ninth Symposium on Usable Privacy and Security
Usability and security evaluation of GeoPass: a geographic location-password scheme
Proceedings of the Ninth Symposium on Usable Privacy and Security
Memory retrieval and graphical passwords
Proceedings of the Ninth Symposium on Usable Privacy and Security
Quantifying the security of graphical passwords: the case of android unlock patterns
Proceedings of the 2013 ACM SIGSAC conference on Computer & communications security
Revisiting graphical passwords for augmenting, not replacing, text passwords
Proceedings of the 29th Annual Computer Security Applications Conference
On the security of picture gesture authentication
SEC'13 Proceedings of the 22nd USENIX conference on Security
International Journal of Security and Networks
A VISION BASED GRAPHICAL PASSWORD
Journal of Integrated Design & Process Science
WebCallerID: Leveraging cellular networks for Web authentication
Journal of Computer Security
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In this paper we propose and evaluate new graphical password schemes that exploit features of graphical input displays to achieve better security than text-based passwords. Graphical input devices enable the user to decouple the position of inputs from the temporal order in which those inputs occur, and we show that this decoupling can be used to generate password schemes with substantially larger (memorable) password spaces. In order to evaluate the security of one of our schemes, we devise a novel way to capture a subset of the "memorable" passwords that, we believe, is itself a contribution. In this work we are primarily motivated by devices such as personal digital assistants (PDAs) that offer graphical input capabilities via a stylus, and we describe our prototype implementation of one of our password schemes on such a PDA, namely the Palm PilotTM.