uniqueness of physical unclonable function (PUF)

[ref] https://www.iacr.org/archive/ches2011/69170391/69170391.pdf

 Example: we designed a PUF function in someway.
The function generate 50 responses, saying '1011101' and '1001001' are two of the responses.
The hamming distance is 2 and the normalized hamming distance is 2/7 = 0.285. Keep on calculating all the responses and construct a histogram like Fig. 1.

The mean value of this histogram is the uniqueness of this PUF, i.e. about 46% with std of 3.8%.

jobs note

Define: TSMC@PTT N4bachelor: 2.8K;  N4Master=4.5K 
[ref] https://www.ptt.cc/bbs/Tech_Job/M.1278533064.A.547.html
by 20201117

Multi Skype 雙開 in windows 10

[ref] https://answers.microsoft.com/zh-hant/skype/forum/skype_win10-skype_startms-skype_signms/%E6%9B%B4%E6%96%B0skype-828041%E5%BE%8C/a6d68231-74cb-478e-91c5-2f35f5b5011d?auth=1

 add another link and modified the link: "*.exe" to "*.exe" --secondary

linux: rename subdirectoris

rename all sub-directories named layout to layout_1234

>> find . -type d | grep layout | xargs -I {}layout  mv {}layout {}layout_1234

youtube download

1. jdownloader
cons: can't download live stream

2. 4K video downloader

Pros: can download live stream

https://www.4kdownload.com/
https://www.azofreeware.com/2019/12/4k-video-downloader.html

3. python script youtube-dl

[ref] http://icekuo.blogspot.com/2019/09/python-youtube-dl-youtube.html

[ref] https://askubuntu.com/questions/486297/how-to-select-video-quality-from-youtube-dl

[ref] https://yogapan.github.io/2017/08/16/Youtube-dl%E6%BF%83%E7%B8%AE%E6%95%99%E5%AD%B8%E7%AD%86%E8%A8%98/

[ref] https://github.com/MrS0m30n3/youtube-dl-gui

Pros: can download live stream

CMD:>> pip install youtube-dl

CMD:>> pip install ffmpeg

CMD:>> youtube-dl -f best https://www.youtube.com/watch?v=19g6IHsfsyY

PS. GUI version:

Excel tips

[add analysis toolpak]

file -> option -> addon -> analysis toolpak -> execute -> check on 'analysis toolpak' & 'analysis toolpak-VBA' -> OK

[array to list]

idea: auto calculate the new index by mod function

template: https://drive.google.com/file/d/19USrMKCdxX2rjd_XbNw22r9lC0a7GZbL/view?usp=sharing

[histogram]

Method 1: analysis toolpak

Con: have to regenerate histogram manually every time, when the data changes

step 1: data -> analysis -> histogram ->

'input range' : data to be analysis; eg. sheet1!A1:LR259
'range' : the x-axis of the histogram eg. B4:B24
'output range' : the count results D1
check on the plot out

-> OK

Method 2: using frequency function

Pros: update the data automatically

Cons: additional techniques to plot

Steps:

1. evaluate the max/min of data

2. create the x-axis

3. using frequency function:
3.1 select the output array  eg. B2:B22
3.2 input '=FREQUENCY(HG_data!$A$1:$LR$259,$A$2:$A22)' in the function slot
3.3 press 'Ctrl+Shift+Enter' to generate the histogram data

4. plot the histogram
4.1 insert -> histogram plot

4.2 right click on the empty plot and choose (E)

4.3 Add new data & axis

4.4 add some labels as you like

4.5 add variable content: create a text box, select the text box, put '=A1' or some other text or variable, enter

Method 3: 數據透視圖

數據透視圖

not trying this

template:

https://drive.google.com/file/d/17q_Tm6EeQ5qmAQhTF-nGKRb8711FZ4-R/view?usp=sharing

ref.1 https://kknews.cc/zh-tw/code/peqojnp.html

ref.2 https://isvincent.pixnet.net/blog/post/37718302-excel-%E8%AE%93%E5%9C%96%E8%A1%A8%E7%9A%84%E6%A8%99%E9%A1%8C%E8%87%AA%E5%8B%95%E6%9B%B4%E6%96%B0

ref.3

[fill a long list]

Method 1: left click on the green square dot and drag down

Method 2: ctrl+G

step 1: select J1

step 2: ctrl+G and input 'J1:J6', then OK

step 3: type the command for J1, eg. =INDEX($A$1:$C$2, MOD(ROW(H1)-1, 2)+1, MOD( FLOOR((ROW(H1)-1)/2, 1), 3)+1)
step 4: press 'ctrl+enter'

template: https://drive.google.com/open?id=19USrMKCdxX2rjd_XbNw22r9lC0a7GZbL

ref.1 https://superuser.com/questions/948175/fill-a-large-range-with-a-formula-in-excel-without-mouse-dragging-to-extend