07-09-2006
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
How to set password in zip files under unix?
There are password protection available in various os.
Does unix has password protection for zip files?
Is zip and gzip command has it? (6 Replies)
Discussion started by: p_prathaban
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Hi Experts,
I am an SAP ABAP developer and compleatly stranger to unix and I need a help to extend a small peice of code.
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Here YYYY = is the path... (3 Replies)
Discussion started by: veeru4all
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I am trying to zip a file with password protection.
I have read all or atleast most of the threads on the website, but couldn't come up with a solution.
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4. Shell Programming and Scripting
Hi Friends,
I execute a perl script with password as input but i wish not to print the password when i give the input. Instead when i provide the password it could be shown as "****" instead of original password. I know we can use Term::ReadKey or IO::Prompt for this, but just wanted to know if... (0 Replies)
Discussion started by: nmattam
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5. Shell Programming and Scripting
HI,
Can we add password protection for attachment of .CSV file in below command or any alternative solution.
uuencode ../reports/gtsa_lmt_pb_rfs_daily.txt gtsa_lmt_pb_rfs_daily-$FILDTE.csv |mailx -s "gtsa_lmt_pb_rfs_daily" $MAILTO
Many thanks
regards,
Sampath (4 Replies)
Discussion started by: Sampath.Rachcha
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6. Shell Programming and Scripting
How to create a file in UNIX which is password protected ?
Thanks and Regards,
Neeraj (5 Replies)
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7. 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
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8. Shell Programming and Scripting
Hi Gurus,
I need to encrypt the Db passwords which are stored in a configuration file (.txt) as below:
stage_db_pwd=ABC
this is test line
content_db_pwd=123def
This is test line 2
stg_db_name=xyz
I want to encrypt all the password fields (identified by "pwd"), encrypt them in the same... (3 Replies)
Discussion started by: ashishpanchal85
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9. Post Here to Contact Site Administrators and Moderators
All,
I have requirement to send password protected excel file in an email from unix/linux box without zipping it. Any help would be appreciated.
Thanks.. (1 Reply)
Discussion started by: Durgesh Gupta
1 Replies
10. Shell Programming and Scripting
All,
I have requirement to send password protected excel file in an email from unix/linux box without zipping it. Any help would be appreciated.
Thanks.. (8 Replies)
Discussion started by: Durgesh Gupta
8 Replies
CRYPT(3) Library Functions Manual CRYPT(3)
NAME
crypt - one-way password encryption function
SYNOPSIS
#define _MINIX_SOURCE 1
#include <unistd.h>
char *crypt(const char *key, const char *salt)
DESCRIPTION
The first use of crypt() is to encrypt a password. Its second use is to authenticate a shadow password. In both cases crypt() calls
pwdauth(8) to do the real work.
Crypt() encrypts a password if called with a user typed key, and a salt whose first two characters are in the set [./0-9A-Za-z]. The
result is a character string in the [./0-9A-Za-z] alphabet of which the first two characters are equal to the salt, and the rest is the
result of encrypting the key and the salt.
If crypt() is called with a salt that has the form ##user then the key is encrypted and compared to the encrypted password of user in the
shadow password file. If they are equal then crypt() returns the ##user argument, if not then some other string is returned. This trick
assures that the normal way to authenticate a password still works:
if (strcmp(pw->pw_passwd, crypt(key, pw->pw_passwd))) ...
If key is a null string, and the shadow password is a null string or the salt is a null string then the result equals salt. (This is
because the caller can't tell if a password field is empty in the shadow password file.)
The key and salt are limited to 1024 bytes total including the null bytes.
FILES
/usr/lib/pwdauth The password authentication program
SEE ALSO
getpass(3), getpwent(3), passwd(5), pwdauth(8).
NOTES
The result of an encryption is returned in a static array that is overwritten by each call. The return value should not be modified.
AUTHOR
Kees J. Bot (kjb@cs.vu.nl)
CRYPT(3)