Thank you Nils. I always look forward to new CT2 videos. This looks like it could be simplified to produce a keystream similar to Schneier's Solitaire Cipher. Perhaps by laying out tge tiles in a chain instead of a grid. This might cut down on user errors garbling the message.
Thank you. Yes, I know that you implemented that on the C64 (my most favorite home computer :-)), Maybe, in the future I will also make a small video about crypto on the 6502 :-) Greetings, Nils
Hiho, The numbers are just computed by their position in the alphabet. The numbers on the right are the position modulo 6 and the numbers on the bottom are the position divided by 6. For example, the _ has the position 0, thus both numbers are 0. The a has the positon ten. 10 mod 6 is 4 and 10 / 6 = 1, hence, a = (4,1). Greetings, Nils PS: I linked to the original paper below the video :-)
Thank you Nils. I always look forward to new CT2 videos.
This looks like it could be simplified to produce a keystream similar to Schneier's Solitaire Cipher. Perhaps by laying out tge tiles in a chain instead of a grid. This might cut down on user errors garbling the message.
Great video. I think I told you before that I implemented RC4 on the commodore 64. It was a great learning experience. Keep up the good work!
Thank you. Yes, I know that you implemented that on the C64 (my most favorite home computer :-)),
Maybe, in the future I will also make a small video about crypto on the 6502 :-)
Greetings,
Nils
@@CryptographyForEverybody email me if you want some help. I've done quite a few now
Are the numbers selected for each specific letter merely random? Or are they optimised to avoid weaknesses?
Hiho,
The numbers are just computed by their position in the alphabet. The numbers on the right are the position modulo 6 and the numbers on the bottom are the position divided by 6.
For example, the _ has the position 0, thus both numbers are 0. The a has the positon ten. 10 mod 6 is 4 and 10 / 6 = 1, hence, a = (4,1).
Greetings,
Nils
PS: I linked to the original paper below the video :-)
Hey Nils, any information available on how to authenticate LC4?
Hiho,
It is described in the specification paper. See in the text below this video :-)
Greetings,
Nils
The ElsieFour component is not showing up in my library in Cryptotools. I clicked update but it says I have the latest updates.
It’s only in the nightly build - not yet in the stable release, greetings Nils