rc4 - Impementation of the RC4 stream cipher
TABLE OF CONTENTS
SYNOPSIS
DESCRIPTION
COMMANDS
PROGRAMMING INTERFACE
EXAMPLES
AUTHORS
BUGS, IDEAS, FEEDBACK
SEE ALSO
KEYWORDS
COPYRIGHT
package require Tcl 8.2
package require rc4 ?1.1.0?
|
This package is an implementation in Tcl of the RC4 stream cipher developed by Ron Rivest of RSA Data Security Inc. The cipher was a trade secret of RSA but was reverse-engineered and published to the internet in 1994. It is used in a number of network protocols for securing communications. To evade trademark restrictions this cipher is sometimes known as ARCFOUR.
% set keydata [binary format H* 0123456789abcdef] % rc4::rc4 -hex -key $keydata HelloWorld 3cf1ae8b7f1c670b612f % rc4::rc4 -hex -key $keydata [binary format H* 3cf1ae8b7f1c670b612f] HelloWorld |
set Key [rc4::RC4Init "key data"] append ciphertext [rc4::RC4 $Key $plaintext] append ciphertext [rc4::RC4 $Key $additional_plaintext] rc4::RC4Final $Key |
proc ::Finish {myState data} { DoStuffWith $myState $data } rc4::rc4 -in $socket -command [list ::Finish $ApplicationState] |
Pat Thoyts
This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category rc4 of the Tcllib SF Trackers. Please also report any ideas for enhancements you may have for either package and/or documentation.
aes(3tcl), blowfish(3tcl), des(3tcl)
arcfour,, data integrity, encryption, rc4, security, stream cipher
Copyright © 2003, Pat Thoyts <patthoyts@users.sourceforge.net>