The CSS decryption source code used in DeCSS was mailed to Derek Fawcus before DeCSS was released. When the DeCSS source code was leaked, Fawcus noticed that DeCSS included his css-auth code in violation of the GNU GPL. When Johansen was made aware of this, he contacted Fawcus to solve the issue and was granted a license to use the code in DeCSS under non-GPL terms.
The CSS decryption source code used in DeCSS was mailed to Derek Fawcus before DeCSS was released When the DeCSS source code was leaked Fawcus noticed that DeCSS included his css-auth code in violation of the GNU GPL When Johansen was made aware of this he contacted Fawcus to solve the issue and was granted a license to use the code in DeCSS under non-GPL terms