Re: encryption

[David Christensen <dpchrist@holgerdanske.com>]

On 04/20/18 12:38, Brian wrote:
> DECRYPT=$(scrypt dec /usr/local/bin/myscript) && eval "$DECRYPT"

On 04/21/18 09:36, David Wright wrote:
> If so, then won't the password be revealed by ps while eval is 
> evaluating it?

Apparently, not:

2018-04-21 13:02:16 dpchrist@vstretch ~/sandbox/sh
$ cat environment-var-ps
CMD="echo hello" && eval "$CMD" && sleep 3 && echo world! &
ps -f

2018-04-21 13:02:18 dpchrist@vstretch ~/sandbox/sh
$ dash environment-var-ps
hello
UID        PID  PPID  C STIME TTY          TIME CMD
dpchrist  1681  1268  0 11:42 pts/1    00:00:00 -bash
dpchrist  2541  1681  0 13:02 pts/1    00:00:00 dash environment-var-ps
dpchrist  2542  2541  0 13:02 pts/1    00:00:00 dash environment-var-ps
dpchrist  2543  2541  0 13:02 pts/1    00:00:00 ps -f
dpchrist  2544  2542  0 13:02 pts/1    00:00:00 sleep 3

2018-04-21 13:02:21 dpchrist@vstretch ~/sandbox/sh
$ world!


2018-04-21 13:03:03 dpchrist@vstretch ~/sandbox/sh
$ bash environment-var-ps
hello
UID        PID  PPID  C STIME TTY          TIME CMD
dpchrist  1681  1268  0 11:42 pts/1    00:00:00 -bash
dpchrist  2556  1681  0 13:03 pts/1    00:00:00 bash environment-var-ps
dpchrist  2557  2556  0 13:03 pts/1    00:00:00 bash environment-var-ps
dpchrist  2558  2556  0 13:03 pts/1    00:00:00 ps -f
dpchrist  2559  2557  0 13:03 pts/1    00:00:00 sleep 3

2018-04-21 13:03:05 dpchrist@vstretch ~/sandbox/sh
$ world!


David