Inicialization vector (IV)

set IV for created MCRYPT object

command:	`ns_mcrypt initvector set -base64\|-raw\|-hex\|-random mcypt_id IV`
parameters:	-base64\|-raw\|-hex\|-random - type of input format for IV string :: hexadecimal string: -hex; raw string (binary, plain) (TclByteArray): -raw; binary base64 encoded: -base64; randomly generated IV string: -random. mcrypt_id - id of MCRYPT object generated by new command (see crypt commands) IV - string of initialization vector
result:	set the IV for the specified MCRYPT object
example:	ns_mcrypt initvector set -random $mcyptid

get IV for created MCRYPT object

command:	`ns_mcrypt initvector get -base64\|-raw\|-hex mcypt_id`
parameters:	-base64\|-raw\|-hex - type of output format for IV string :: hexadecimal string: -hex; raw string (binary) (TclByteArray): -raw; binary base64 encoded: -base64. mcrypt_id - id of MCRYPT object generated by new command (see crypt commands)
result:	return string of the IV for the specified MCRYPT object
example:	set iv [ns_mcrypt initvector get -raw $mcyptid]

Full samples:

set and get IV for MCRYPT object

set td [ns_mcrypt new "rijndael-256" "ncfb"]
ns_mcrypt initvector set -raw $td "012345678901234567890123456789"
set iv [ns_mcrypt initvector get -hex $td]
ns_adp_puts $iv
ns_mcrypt destroy $td

result: <% set td [ns_mcrypt new "rijndael-256" "ncfb"] ns_mcrypt initvector set -raw $td "012345678901234567890123456789" set iv [ns_mcrypt initvector get -hex $td] ns_adp_puts $iv ns_mcrypt destroy $td %>

randomly set IV and get IV for MCRYPT object

set td [ns_mcrypt new "rijndael-256" "ncfb"]
ns_mcrypt initvector set -random $td 
set iv [ns_mcrypt initvector get -base64 $td]
ns_adp_puts $iv
ns_mcrypt destroy $td

result: <% set td [ns_mcrypt new "rijndael-256" "ncfb"] ns_mcrypt initvector set -random $td set iv [ns_mcrypt initvector get -base64 $td] ns_adp_puts $iv ns_mcrypt destroy $td %>