Crypting private data

valsorym

valsorym

Howdy all,
probably each of us has private data (credit card Pin-code, account in email or host server/ssh/root password, in the end phone number Jasmin of erotic escort service :r).

In the past (when I used the WIndows OS) I wrote for me a small program encryption of text data using the method of public keys. It was a good program. I used it and after the transition to FreeBSD, using the true emulators/wine tool. All these I have kept on an external hard drive - which soon failed (broken). Now I've lost the source code, software and personal data. (To say there is nothing - a loser).

I now have a question - is it worth to rewrite the program again? Or may have a similar under FreeBSD? How are you hiding from the wife of the phone a your girl friend? :) (sorry, ... your personal data).

* I've seen a lot of programs - but ruled that the issue for discussion because it "delicate". I would like to do would have been encrypted data securely and the program not was "trojan" (do not send my passwords to developer).

What would you recommend? (* It is desirable for the console).
Thanks.
 
+1 for geli(8).

You can do pretty much anything from creating small encrypted partitions to encrypting the entire system including / and swap.

The handbook has a section on geli (and gbde), but it focuses on encrypting an actual disk partition. For full system encryption search the HOWTO forum; several people have written HOWTOs for this, including The User Formerly Known As Killasmurf. For creating a small encrypted partition contained in a file (similar to a TrueCrypt container) you may want to use geli in conjunction with md(4) as already said by several people. There might be a HOWTO for that too, but don't shoot me if there isn't one (yet).

Fonz
 
Hi guys.
It's me, again, and it's my solution this problem (yep tool).
Sorry that I do not listen to all of you, but I think easier to create my solution, than learn other programs.

Note:
1. It only works with Latin alphabet.
2. The program completely fresh - has not yet been tested.

Okay, no big program that allows you to encrypt text files are not very complicated, but rather a reliable method.

In order to create/open an encrypted file, simply run:
% yep [i]<TEXTEDITOR> <FILENAME>[/i]
For example:
% yep vim ~/my_first_yep_file

* Use the argument of -w to ask your protection key.
For example:
% yep -w doorways vim ~/my_second_yepfile

To get help:
% yep -i

To change the password and the keyword:
% yep -p ~/yepfile
or
% yep -w my_keyword -p ~/yepfile

During operation, the program will create a directory / tmp / yep that will host the temporary files. For that to change this directory, use the argument of -d [/ i].
For example:
% yep -w doorways -d ~/tmp/ vim ~/yepfile

Directory structure:
Code: 
 ~/yep/
      |__ bin/
      |__ doc/
      |__ src/
      |__ ..
      |__ .

Sources:
~/yep/src/yep.c
The full source code with syntax highlighting can be viewed here!

~/yep/src/Makefile
Code: 
# Project:          yep
# Date created:     April 22, 2012
# Whom:             valsorym <valsorym.e@gamil.com>

# binary
EXECUTABLE = $(.CURDIR)/../bin/yep

# compiler
CC = cc
CFLAGS = -Wall -std=c99 
LDFLAGS = -O2

# targets
all: $(EXECUTABLE)
$(EXECUTABLE): yep.o
	$(CC) $(CFLAGS) -o $@ $> $(LDFLAGS) 

yep.o: yep.c
	$(CC) $(CFLAGS) -c $>

.PHONY: all clean run install

clean:
	rm -f *.out *.o *.core

run:
	$(EXECUTABLE)

install:
	cp $(EXECUTABLE) ./bin/

P.S. I hope this helps someone too. (It helped you - tell me "thank you". It is not helped - I listen to your criticism! :) ).
P.P.S. No need to yell at me, I know that to create a bike again - bad! But I want to ..!
 
doorways said:
Hi guys.
It's me, again, and it's my solution this problem (yep tool).
Sorry that I do not listen to all of you, but I think easier to create my solution, than learn other programs.

For example:
% yep vim ~/my_first_yep_file
Click to expand...
If you just want to edit a text file, you can add Password Protection to a file your editing in vim:
[CMD="vim"]-x <FILENAME>[/CMD]
 
bes said:
If you just want to edit a text file, you can add Password Protection to a file your editing in vim:
[CMD="vim"]-x <FILENAME>[/CMD]
Click to expand...


Yes, you are right!
But this is just vim editor, but if I will need to use: vi/ee (FreeBSD default editors), emacs, nano (Linux Gentoo default editor) ... etc. I can create yepfile on FreeBSD, for example, use vim
% yep -w doorways vim ~/my_yepfile

and then read (edit) it use nano in my Linux Gentoo
% yep -w doorways nano ~/my_yepfile

So, I can use any others text editors.

But, thank you! I didn't know this about vim :r
 
DutchDaemon said:
Large amounts of output really belong on something like http://pastebin.com, which will give you a link you can post here.. It's in the forum guidelines.
Click to expand...

Oh, thanks! This is very interesting.
Now the full source code with syntax highlighting can be viewed here!
 
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