06-07-2013
If the encryption doesn't protect him, or he learns better after you sell it to him, he will be
very upset. So I'd try the
key on drive method then, to avoid misleading them.
As far as I can tell the USB drive would become the magic key that lets it boot. Without it, they need a password.
This User Gave Thanks to Corona688 For This Post:
8 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
My dilemma,
I need to send, deemed confidential, information via e-mail (SMTP). This information is sitting as a file on AIX. Typically I can send this data as a e-mail attachment via what we term a "mail filter" using telnet. I now would like to somehow encrypt the data and send it to a e-mail... (1 Reply)
Discussion started by: hugow
1 Replies
2. UNIX for Dummies Questions & Answers
I have a laptop running ubuntu 10.10. In Gparted I see numerous partitions. This was installed 'I believe' using the 'encrypt home folder' option using the install disk. I am trying to determine 'as a matter of fact' since I did not do the install, which partitions are in fact encrypted, and... (0 Replies)
Discussion started by: Marcus Aurelius
0 Replies
3. Linux
Hi All,
In linux server some encryption keys were imported using gpg command.
I want to know when those keys was imported.
Is there any way to get when the encryption keys were imported?
Thanks in advance..
:rolleyes: (1 Reply)
Discussion started by: latika
1 Replies
4. UNIX for Advanced & Expert Users
What is the difference between these yum provides and whatprovides methods? I know provides and whatprovides give the same results, but different methods of */ and \* give different results. Also whether you put */ and \* in front of the string or behind the string give different results. I have... (0 Replies)
Discussion started by: cokedude
0 Replies
5. Ubuntu
we are to develope a project on linux whose aim is to automatically encrypt files after logoff and to decrypt them using password after log in
this is to be made by chging source code of linux ...........
can any one help me on this???? (1 Reply)
Discussion started by: vyom
1 Replies
6. Cybersecurity
Hi all,
I'm looking for secure file encryption tools that use MAC address as encryption key. FYI, I'm using Red Hat Enterprise Linux OS.
For example: when A wants to send file to B
A will encrypt the file with B's computer MAC/IP address as an encryption key
This file can only be decrypted... (2 Replies)
Discussion started by: sergionicosta
2 Replies
7. Cybersecurity
Hello, you may know that linux root password can be resetted (example from rescue mode), so this means linux server offers no protection against access of data when you get somehow remote or physical access to server?
So my question is how i can full encrypt linux webserver disk so no one can... (1 Reply)
Discussion started by: postcd
1 Replies
8. UNIX for Beginners Questions & Answers
Hi, we have a brand new Centos 6.8 build, and after some discussion it seems that there is some interest in securing the entire system using whole disk encryption.
What is/are the best option/s, and is this something that can be done after Centos is installed (like for example PGP WDE in Windows... (2 Replies)
Discussion started by: xdawg
2 Replies
LEARN ABOUT ULTRIX
setkey
crypt(3) Library Functions Manual crypt(3)
Name
crypt, crypt16, setkey, encrypt - DES encryption
Syntax
char *crypt(key, salt)
char *key, *salt;
char *crypt16(key, salt)
char *key, *salt;
void setkey(key)
char *key;
Description
The subroutine is the password encryption routine. It is based on the NBS Data Encryption Standard, with variations intended to frustrate
use of hardware implementations of the DES for key search.
The first argument to is normally a user's typed password. The second is a 2-character string chosen from the set [a-zA-Z0-9./]. The salt
string is used to perturb the DES algorithm in one of 4096 different ways, after which the password is used as the key to encrypt repeat-
edly a constant string. The returned value points to the encrypted password, in the same alphabet as the salt. The first two characters
are the salt itself.
The subroutine is identical to the function except that it will accept a password up to sixteen characters in length. It generates a longer
encrypted password for use with enhanced security features.
The other entries provide primitive access to the actual DES algorithm. The argument of is a character array of length 64 containing only
the characters with numerical value 0 and 1. If this string is divided into groups of 8, the low-order bit in each group is ignored, lead-
ing to a 56-bit key which is set into the machine.
The argument to the entry is likewise a character array of length 64 containing 0s and 1s. The argument array is modified in place to a
similar array representing the bits of the argument after having been subjected to the DES algorithm using the key set by If edflag is 0,
the argument is encrypted; if non-zero, it is decrypted.
Restrictions
The return values from and point to static data areas whose content is overwritten by each call.
Environment
Default Environment
In the default environment on systems that do not have the optional encryption software installed the function expects exactly one argu-
ment, the data to be encrypted. The edflag argument is not supplied and there is no way to decrypt data. If the optional encryption soft-
ware is installed the function behaves as it does in the POSIX environment. The syntax for the default environment follows:
void encrypt(block)
char *block;
POSIX Environment
In the POSIX environment the encrypt function always expects two arguments. The function will set errno to ENOSYS and return if edflag is
non-zero and the optional encryption software is not present. The syntax for the POSIX environment follows:
void encrypt(block, edflag)
char *block;
int edflag;
In all cases the function will set errno to ENOSYS and return if the optional encryption software is not present.
See Also
login(1), passwd(1), yppasswd(1yp), getpass(3), auth(5), passwd(5), passwd(5yp)
ULTRIX Security Guide for Users and Programmers
crypt(3)