Encrypting/Decrypting passwords Post: 302803413

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

decrypting a file

Accidentally, I encrypted a file while saving it in vi editor. While saving I used :X and when asked for encryption key, I simply pressed ENTER key without any input. I searched the forum, but unfortunately didn't get the proper solution. In one of the threads it asked to visit a particular...

2. Shell Programming and Scripting

Decrypting Unix file

Accidentally, I encrypted a file while saving it in vi editor. While saving I used :X and when asked for encryption key, I simply pressed ENTER key without any input. Now, I want to decrypt the file. I searched the forum, but unfortunately didn't get the proper solution. In one of the...

3. Shell Programming and Scripting

decrypting a file using shell script

how do you go about doing this i have a shell script here below but i am not to sure on the process of decrytpting the file. #!/bin/csh # # set am = �abcdefghijklm' set am = �ABCDEFGHIJKLM' set nz = �nopqrstuvwxyz' set NZ = �NOPQRSTUVWXYZ' cat $argv | tr $am $AM | tr $NZ $nz | tr $nz $am...

4. HP-UX

Encrypting DataBase Passwords

Hi All We have got a HUGE process of securing our infrastructure(primarily the database) We basically establish connection to oracle database from our UNIX shell scripts when we do ps -ef | grep sqlplus it blurts out all the credentials as output. sqplus username/password@server ...

5. Shell Programming and Scripting

Ignoring file name case and decrypting it.

Dear Friends, I want to decrypt 2 different file types in a folder (ZIP files and GPG files). Each file type need different decryption syntex. Hence, the script should identify file type and should act accordingly ignoring file name case i.e. upper or lower case. Also, the extention can be...

6. UNIX for Advanced & Expert Users

When did UNIX start using encrypted passwords, and not displaying passwords when you type them in?

I've been using various versions of UNIX and Linux since 1993, and I've never run across one that showed your password as you type it in when you log in, or one that stored passwords in plain text rather than encrypted. I'm writing a script for work for a security audit, and two of the...

7. Shell Programming and Scripting

Shell Script for encrypting/decrypting text file

Hello, I am a newbie in Shell scripting. At the moment, I have a program written in C++ which gives an output file in text format. I would like to write a shell program which can take that output file and encrypt it and later if needed I want to decrypt it. Could someone please help or...

8. UNIX for Advanced & Expert Users

How To Find GPG Keys In Encrypted File With Out Decrypting it?

Hello All, Is there a way to determine how many public keys are embedded or used to encrypt in a GPG file with out decrypting the actual encrypted file. I know i can see the keys & email id's used when we decrypt it, but curious to find a command if any to know with out decrypting the actual file...

9. High Performance Computing

Encrypting interconnect

Hi, i've got a qusetion regarding interconnect of compute nodes. In our company we are running a Simulation Cluster which is administrated by the Simulation department. Now our central IT requires to encrypt the interconnect of the compute nodes. Does anybody in that business encrypt...

LEARN ABOUT REDHAT

slappasswd

SLAPPASSWD(8C)															    SLAPPASSWD(8C)

NAME

       slappasswd - OpenLDAP password utility

SYNOPSIS

       /usr/sbin/slappasswd [-v] [-u] [-s secret] [-h hash] [-c salt-format]

DESCRIPTION

       Slappasswd is used to generate an userPassword value suitable for use with ldapmodify(1) or slapd.conf(5) rootpw configuration directive.

OPTIONS

       -v     enable verbose mode.

       -u     Generate	RFC2307  userPassword values (the default).  Future versions of this program may generate alternative syntaxes by default.
	      This option is provided for forward compatibility.

       -s secret
	      The secret to hash.  If not provided, the user will be prompted for the secret to hash.

       -h scheme
	      If -h is specified, one of the following RFC2307 schemes may be specified: {CRYPT}, {MD5}, {SMD5}, {SSHA}, and {SHA}.   The  default
	      is {SSHA}.

       -c crypt-salt-format
	      Specify  the  format of the salt passed to crypt(3) when generating {CRYPT} passwords.  This string needs to be in sprintf(3) format
	      and may include one (and only one) %s conversion.  This conversion  will	be  substituted  with  a  string  random  characters  from
	      [A-Za-z0-9./].   For example, "%.2s" provides a two character salt and "$1$%.8s" tells some versions of crypt(3) to use an MD5 algo-
	      rithm and provides 8 random characters of salt.  The default is "%s", which provides 31 characters of salt.

LIMITATIONS

       The practice storing hashed passwords in userPassword violates Standard Track (RFC2256) schema specifications and may hinder interoperabil-
       ity.  A new attribute type to hold hashed passwords is needed.

SECURITY CONSIDERATIONS

       Use  of	hashed	passwords  does  not protect passwords during protocol transfer.  TLS or other eavesdropping protections should be inplace
       before using LDAP simple bind.  The hashed password values should be protected as if they were clear text passwords.

SEE ALSO

       ldappasswd(1), ldapmodify(1), slapd(8) slapd.conf(5)

       "OpenLDAP Administrator's Guide" (http://www.OpenLDAP.org/doc/admin/)

ACKNOWLEDGEMENTS

       OpenLDAP is developed and maintained by The OpenLDAP Project (http://www.openldap.org/).  OpenLDAP is derived from University  of  Michigan
       LDAP 3.3 Release.

OpenLDAP 2.0.27-Release 					  20 August 2000						    SLAPPASSWD(8C)