Italian dongle

[TOTEU]

Looking for more info (API docs, etc) for an italian dongle
named EXSEKEY, if anybody heard about this one...



Regards,
TOTEU

[maurik]

ok! www.des.co.uk

for deskey dk2

maurik

[votan]

exsekey has 2 flavours: the old model and micro model.
I got a demo set from the company.
The envelope mechanism only checks whether the dongle is plugged. The decryption is dongle-independent.
There is a memory edit util of exsekey. To reach the memory you need a 10-char.s password. however, the implementation is weak and the password check is performed in PC memory, not in the dongle, thus i modified this edit util to display the correct password after a try with a dummy password.

more details about the key:
pic16c505 is the microcontroller
93c46b is the serial eeprom
also a nor and a nand logic gates
several transistor,resistors..

apisi dont remember the actual api names,but their functions)
readcell
readflag
writecell
writeflag
donglepresent
checkdate
checkprogramrunnumber
several communication functions

note to tgodd: tgodd,beside marx crypto, there are still commercial dongles which use microchip's products (exsekey,hyper-lock etc.). what a pity

[dELTA]

Ok, that's almost a record I think... > 3,5 years.

[JMI]

Oh. Are we supposed to actually look at the date of the Post we are answering? Well, Duh.

Regards,

[dELTA]

Oh well, at least it was a nice post with good content, so let's not bully him too much. Keep up the nice posts votan, there's nothing wrong with your post per se, just maybe check the dates of the posts you reply to the next time.

[votan]

ha ha) well, I think my post about exsekey is the only one for 3.5 years)
simple dongle however not known among the community.. actually, the sdk is not distributed on the producer website, this is probably the main reason..
i will check the sdk files, if there arent any clues about me for the producer, I will distribute both sdk and my works.
anyway, enjoy yourself

[TOTEU]

Thanks, better late , than never...
Plz contact me on private for SDK stuff.

PS: HASP 4 is dead , welcome HASP HL...

[votan]

I want to prepare a detailed tutorial about this toy. A small info about its eeprom:
93lc46b serial eeprom - 64 x 16 cell (that is each cell is 2 byte=1 word)
the data eeprom is 48x16 according to the sdk.
what about the rest of the eeprom?
lets see:

(for micro model of exsekey, all data in hex of course)

cell 1-2: product code
cell 3: personal code
cell 4-5: i think these are used to determine the behaviour of crypt algo
cell 6: time info for time limit
cell 7: run number counter for run number limit
cell 13: probably dongle version info (not sure)
cell 17-64: the data memory (i mean 48x16)

sincerely..

[JMI]

We always welcome additional information which is actually useful.

Regards,