A distance model for sociometric structure†

1977 ◽  
Vol 5 (1) ◽  
pp. 21-39 ◽  
Author(s):  
Christopher Winship
Keyword(s):  
Distance Model

Hamming Distance Model Based Power Analysis for Cryptographic Algorithms

2011 ◽  
Vol 121-126 ◽  
pp. 867-871 ◽  
Author(s):  
Jie Li ◽  
Wei Wei Shan ◽  
Chao Xuan Tian
Keyword(s):  
Integrated Circuit ◽  
Power Analysis ◽  
Hamming Distance ◽  
Data Encryption ◽  
Design Stage ◽  
Early Design Stage ◽  
Model Based ◽  
Cryptographic Algorithms ◽  
Distance Model ◽  
The Right

In order to evaluate the security of Application Specific Integrated Circuit (ASIC) implemented cryptographic algorithms at an early design stage, a Hamming distance model based power analysis is proposed. The Data Encryption Standard (DES) algorithm is taken as an example to illustrate the threats of differential power analysis (DPA) attack against the security of ASIC chip. A DPA attack against the ASIC implementation of a DES algorithm is realized based on hamming distance power model (HD model), and it realized the attack by successfully guessing the right 48-bit subkey. This result indicates that the power analysis attack based on the HD model is simple, rapid and effective for the design and evaluation of security chips.

scholarly journals Development of a Weighted Variable Look Ahead Distance Model and Performance Comparison

2019 ◽  
Vol 27 (11) ◽  
pp. 861-868
Author(s):  
Kyeoungwook Park ◽  
Jonghwi Park ◽  
Myungseon Heo ◽  
Jihyeong Han ◽  
Byungyong You
Keyword(s):  
Performance Comparison ◽  
Look Ahead ◽  
Distance Model ◽  
And Performance ◽  
Weighted Variable

Sight Distance for Stop-Controlled Intersections Based on Gap Acceptance

2000 ◽  
Vol 1701 (1) ◽  
pp. 32-41 ◽  
Author(s):  
Douglas W. Harwood ◽  
John M. Mason ◽  
Robert E. Brydia
Keyword(s):  
Travel Time ◽  
Field Studies ◽  
Major Road ◽  
Gap Acceptance ◽  
Road Vehicle ◽  
Sight Distance ◽  
Minor Road ◽  
Distance Model ◽  
Design Speed ◽  
A Minor

The current AASHTO policy for sight distance at Stop-controlled intersections is based on a model of the acceleration performance of a minor-road vehicle turning left or right onto a major road and the deceleration performance of the following major road vehicle. An alternative intersection sight distance model based on gap acceptance is developed and quantified. Field studies that were performed to determine the critical gaps appropriate for use in sight distance design are described. It is recommended that the sight distance along the major road for a passenger car at a Stop-controlled intersection should be based on a distance equal to 7.5 s of travel time at the design speed of the major road. Longer sight distances are recommended for minor-road approaches that have sufficient truck volumes to warrant consideration of a truck as the design vehicle.

A generalization of the interpoint distance model

Psychometrika ◽  
1964 ◽  
Vol 29 (2) ◽  
pp. 167-176 ◽  
Author(s):  
John Ross ◽  
Norman Cliff
Keyword(s):  
Interpoint Distance ◽  
Distance Model
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