12-20-2002
Crypt How to??
How to use the crypt function in c++.Itgives error as "Undefined reference to crypt".help me soon plzzzzzzzzz...
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Hi,
does anyone know if the output from crypt can include control caracters or only ascii caracters ?
I want to mail a crypt encoded file and i want to know if i have
to uuencode the file first or not .
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crypt is a command that is used to add more security to files.
now, this crypt command is used on systems (i dont know which) other that Linux RedHat
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Hi..
I need to decrypt a file in Solaris.
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where
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Hi,
I will crypt a file, which requires password to open it in HP-UX. Please let me know the equivalent command in AIX 5.
Your co-operation is highly appreciated in this regard!
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Hi,
I will crypt a file, which requires password to open it in HP-UX. Please let me know the equivalent command in AIX 5.
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Will AIX support crypt command or elase is there any command which is similar to crypt on AIX? (2 Replies)
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Hi all,
I want the source code similar to crypt command in unix.
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Hi,
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Hello all,
I'm currently on HP-UX and will be moveing shortly to Red Hat Linux. Is there a crypt or an equivalent utitlity on RHEL?
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LEARN ABOUT XFREE86
crypt
crypt(1) crypt(1)
NAME
crypt - encode or decode a file
SYNOPSIS
crypt [password]
The crypt utility encrypts and decrypts the contents of a file. crypt reads from the standard input and writes on the standard output. The
password is a key that selects a particular transformation. If no password is given, crypt demands a key from the terminal and turns off
printing while the key is being typed in. crypt encrypts and decrypts with the same key:
example% crypt key < clear.file > encrypted.file
example% crypt key < encrypted.file | pr
prints the contents of clear.file.
Files encrypted by crypt are compatible with those treated by the editors ed(1), ex(1), and vi(1) in encryption mode.
The security of encrypted files depends on three factors: the fundamental method must be hard to solve; direct search of the key space
must be infeasible; "sneak paths" by which keys or cleartext can become visible must be minimized.
crypt implements a one-rotor machine designed along the lines of the German Enigma, but with a 256-element rotor. Methods of attack on
such machines are widely known, thus crypt provides minimal security.
The transformation of a key into the internal settings of the machine is deliberately designed to be expensive, that is, to take a substan-
tial fraction of a second to compute. However, if keys are restricted to (say) three lower-case letters, then encrypted files can be read
by expending only a substantial fraction of five minutes of machine time.
Since the key is an argument to the crypt command, it is potentially visible to users executing ps(1) or a derivative command. To minimize
this possibility, crypt takes care to destroy any record of the key immediately upon entry. No doubt the choice of keys and key security
are the most vulnerable aspect of crypt.
/dev/tty for typed key
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
des(1), ed(1), ex(1), ps(1), vi(1), attributes (5)
8 Mar 2005 crypt(1)