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+# $EPIC: crypt.txt,v 1.2 2007/03/02 02:32:04 jnelson Exp $
+======Synopsis:======
+$crypt(<string> <salt>)
+======Technical:======
+The <string> and <salt> arguments are [[what is a word|dwords]] which is
+different from most functions.
+Given an arbitrary string and a "salt" (a randomizer), this function
+returns the input string in a one-way encrypted form.  This function
+depends on the availability of a local crypt(3) library function.  Only
+the first 8 characters of the input string are significant.  The salt
+is a two-character string, and may be composed of any combination of
+any alphanumeric character, a period (.), or a forward-slash (/).
+Additional characters may be available, depending on the crypt(3) in
+use at your site.
+======Practical:======
+This function is primarily used for encrypting passwords, Unix style.
+It is helpful if the input salt is itself sufficiently random.  Case is
+preserved in both the salt and input string.
+======Returns:======
+encrypted input text, or nothing if error
+======Example:======
+<file>
+$crypt(foobar ab)              returns "foobar" encrypted with salt "ab"
+</file>
+======Other Notes:======
+As mentioned above, this function relies completely on the availability
+of a local crypt(3) library function.  This function is not available
+on some systems.  Refer to your system's manual pages for more
+information.