08-27-2002
To decrypt, the input must the encrypted file. You are just running the encyption step twice.
crypt < plain > encrypted ## encrypt file
crypt < encrypted ## view the file
10 More Discussions You Might Find Interesting
1. Programming
Dear all,
If anyone has some ideas for me how to tackle the following situation:
Imagine a type of client-server application. The client application is started by a human operator with all the necessary LDAP/Kerberos in place. The server application is started automatically as a daemon process.... (2 Replies)
Discussion started by: domivv
2 Replies
2. Solaris
Hi
Someone is going to send me a file that they have encrypted by PGP encryption on windows pc to my solaris 9 server.
They will give me the pgp key to decrypt the file.
How can I do this on solaris 9
Is there a tool installed by default to decrypt or do I need to install something to... (0 Replies)
Discussion started by: frustrated1
0 Replies
3. AIX
Is there a way to encrypt a flat file or a database file so it can be ftp or sftp to a remote windows system?
this is for solaris/AIX etc.
or is there a 3 party sw that can be used?
i know in AIX6 this can be done but we are on AIX 5.3.x and 5.2.x (6 Replies)
Discussion started by: admaix
6 Replies
4. Solaris
hi,
is there any library functions available in sun solaries for encryption and decryption functions.
regards
suresh (1 Reply)
Discussion started by: suresh_rtp
1 Replies
5. UNIX for Dummies Questions & Answers
Dear Members,
Can we find if a particular file is encrypted or decrypted.
I need a command by which i should be able to identify if a file is encrypted or decrypted.
How can we do this? (1 Reply)
Discussion started by: sandeep_1105
1 Replies
6. UNIX Desktop Questions & Answers
can some one help me how to decrypt a .txt.cpt file in unix
i
Double post (0 Replies)
Discussion started by: lily
0 Replies
7. Shell Programming and Scripting
Hello All,
There are so many questions on this and I didn't find any concluded answer.
I want to encrypt a string in the script, actually this is a password. I tried using openssl (I am a newbie to openssl), but it is generating a long one which we can't remember.
I want to encrypt the... (5 Replies)
Discussion started by: karumudi7
5 Replies
8. 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
9. Shell Programming and Scripting
we r to develope a project which involves automatic encryption of all the text files user was working upon during logg off
and to decrypt them during log on
this is to be done by writing a shell script
can anyone help (2 Replies)
Discussion started by: vyom
2 Replies
10. Shell Programming and Scripting
Hi Friends,
There are some 7 years script in out linux server. I am trying to understand them since Linux Server changed(A).
Below line in one of the encrypting script. Here scenario is encrypting bank files in our (A) server and doing Secure Copy to Server (B).
GPG -v --batch --yes --armor... (1 Reply)
Discussion started by: johnsnow
1 Replies
LEARN ABOUT ULTRIX
crypt16
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)