topic Re: Automate Crypt command in Operating System - HP-UX

Automate Crypt command

Chris Campbell 77 — Thu, 04 Feb 2010 22:22:20 GMT

Is it possible to automate the crypt command?
Basically I have a tar file that I want to encrypt before it is FTP to another machine.

Re: Automate Crypt command

James R. Ferguson — Thu, 04 Feb 2010 22:36:30 GMT

Hi Chris:

# echo "hello Chris" > myfile
# crypt jrfkey < myfile > myfile.enc

# cat myfile.enc
[...jibberish...]

# crypt jrfkey < myfile.enc
hello Chris

Regards!

...JRF...

Re: Automate Crypt command

Chris Campbell 77 — Sat, 06 Feb 2010 03:23:33 GMT

Is it using a key to encrypt?

Re: Automate Crypt command

James R. Ferguson — Sat, 06 Feb 2010 13:02:53 GMT

Hi (again) Chris:

> Is it using a key to encrypt?

Yes, in the example I showed, the key was "jrfkey".

Regards!

...JRF...

Re: Automate Crypt command

Chris Campbell 77 — Tue, 09 Feb 2010 01:16:07 GMT

Sorry just one more question. Is this key generated on the fly (when the command is executed) where is the key stored? or is the key somehow embedded in the encryption of the file?

I am totally new to this..

Thanks

Re: Automate Crypt command

James R. Ferguson — Tue, 09 Feb 2010 01:22:36 GMT

Hi (again) Chris:

> Sorry just one more question. Is this key generated on the fly (when the command is executed) where is the key stored? or is the key somehow embedded in the encryption of the file?

Isn't that two questions? :-)

The key is anything you choose to specify. It is not generated on-the-fly. Once encrypted, to read the file, you must supply (know) the key used to encrypt it.

No, the key isn't embedded in the file. The manpages for 'crypt(1)' offer more insight, and you should read them.

Regards!

...JRF...

Re: Automate Crypt command

James R. Ferguson — Tue, 09 Feb 2010 01:25:25 GMT

Hi (again):

By the way, if/when you are satisfied with the answers you have received, please read:

http://forums.itrc.hp.com/service/forums/helptips.do?#28

Regards!

...JRF...

Re: Automate Crypt command

Chris Campbell 77 — Wed, 10 Feb 2010 15:00:33 GMT

James thanks for your help. I just took a look at the man pages. They too were helpful.