Kharon is a small Greasemonkey/HTML5 script that rewrites some darknet links to a proxified version.

This action is performed to permit access to the darknet also in situations where the direct connection it's not available.

Kharon's actually offered doorways

Actually Kharon offers a doorway to the following darknets:

• Tor, throught tor2web.org;
• I2P, throught i2p.to.

How it works ?

Kharon periodically checks the access to the darknets and performs the following actions:

• the darknet it's available? => it assures that no proxified link versions are used performing a rewrite to direct links.

• the darknet it's not available? => it replaces direct links to the darknet with a proxified version.

How checks are implemented ?

Due the the "same origin policy" a real realiable check can't be fulfilled. Actually we are testing the same hack used in javascript portscanning technique (SPI Dynamics / gnucityzen).

GPG public keys

$ gpg --keyserver pgp.mit.edu --recv-key D9A950DE
$ gpg --fingerprint --list-keys D9A950DE
pub   1024D/D9A950DE 2009-05-10 [expires: 2014-05-09]
      Key fingerprint = C1ED 5C8F DB6A 1C74 A807  5695 91EC 9BB8 D9A9 50DE
uid                  Giovanni Pellerano <[email protected]>
sub   4096g/50A7F150 2009-05-10 [expires: 2014-05-09]

$ gpg --keyserver pgp.mit.edu --recv-key A22F60B3
$ gpg --fingerprint --list-keys A22F60B3
pub   4096R/A22F60B3 2010-07-14 [expires: 2011-07-14]
      Key fingerprint = CA6D 2EDE D7F6 0928 4326  AF8C 3415 CDAE A22F 60B3
uid                  Arturo <[email protected]>
uid                  Arturo Filastò Buzzolan <[email protected]>
sub   4096R/D91E70E0 2010-07-14 [expires: 2011-07-14]

$ gpg --keyserver pgp.mit.edu --recv-key C6765430
$ gpg --fingerprint --list-keys C6765430
pub   1024D/C6765430 2009-08-25 [expires: 2011-08-25]
      Key fingerprint = 341F 1A8C E2B4 F4F4 174D  7C21 B842 093D C676 5430
uid                  vecna <[email protected]>
uid                  vecna <[email protected]>
sub   3072g/E8157737 2009-08-25 [expires: 2011-08-25]