Month: May 2015

Tmux: keep same directory in new windows

Published by Silveira on 2015-05-28

# open/split windows in the same dir
bind '"' split-window -c "#{pane_current_path}"
bind % split-window -h -c "#{pane_current_path}"
bind c new-window -c "#{pane_current_path}"

In your ~/.tmux.conf.

To source it in your open tmux:
[bash]
:source-file ~/.tmux.conf
[/bash]

Or in any shell:
[bash]
tmux source-file ~/.tmux.conf
[/bash]

Visual Cryptography

Published by Silveira on 2015-05-07

Two basic articles on visual cryptography:

Kumar, P., Agarwal, S., & Shivani, S. Halftone Visual Cryptography with Pixel Expansion through Error Diffusion. International Journal of Information & Computation Technology. ISSN, 0974-2239.
Naor, Moni, and Adi Shamir. “Visual cryptography.” Advances in Cryptologyâ€”EUROCRYPT’94. Springer Berlin Heidelberg, 1995.

One interesting thing about this schema is that can be applied for stenography and can be simply implemented physically using only shadows.

See too: One Time Pad Using Gimp.