Guest abbasqayyum Posted May 22, 2006 Report Posted May 22, 2006 Hi. I have had my vario for a week and I cant believe I didnt get one ealier. Email on the move....bliss! Not to mention looking things up when you cant remember! Anyway, I have a little problem, which I hope someone can shed a light to (google it seems has for once failed me!). Ok, I have a laptop which connects to my wifi via WPA-PSK AES key. Now the reason I am using AES is cos for some reason connections using TKIP are very bad. They keep dropping in and out. Cant work it out. But AES flies with no problems. However, its seems the little mobile does not support AES and only support TKIP. So I am forever changing from TKIP to AES.... Now, is there any way to "update" re-flash or give it a dictionary so that it can accept AES? I would like to get both working, but the laptop hates TKIP, and the Vario hates AES. My router is in a fix as well. One minute hes AESing and the next TKIPing... Cant be too good for it... Anyway, any help would be appreciated. FYI: Laptop Sony Vaio Fx-805 Router Belkin 54g Wireless card Buffalo (it was cheap!). Thank you. Abbas.
Guest Samsonite Posted May 22, 2006 Report Posted May 22, 2006 Hi. I have had my vario for a week and I cant believe I didnt get one ealier. Email on the move....bliss! Not to mention looking things up when you cant remember! Anyway, I have a little problem, which I hope someone can shed a light to (google it seems has for once failed me!). Ok, I have a laptop which connects to my wifi via WPA-PSK AES key. Now the reason I am using AES is cos for some reason connections using TKIP are very bad. They keep dropping in and out. Cant work it out. But AES flies with no problems. However, its seems the little mobile does not support AES and only support TKIP. So I am forever changing from TKIP to AES.... Now, is there any way to "update" re-flash or give it a dictionary so that it can accept AES? I would like to get both working, but the laptop hates TKIP, and the Vario hates AES. My router is in a fix as well. One minute hes AESing and the next TKIPing... Cant be too good for it... Anyway, any help would be appreciated. FYI: Laptop Sony Vaio Fx-805 Router Belkin 54g Wireless card Buffalo (it was cheap!). Thank you. Abbas. i think you are out of luck mate! AES is the latest method of WiFi encryption and is the most secure. TKIP is a method of changing the key on a regular basis to give sniffers less (or no time ) to work out the key and gain unauthorised access to the network. AES does a similar thing but with increasingly complexed algorithms applied to the key and the data and everything... WEP has been demonstrated to be crackable in about 10 minutes with easily downloadable applications off the web, WPA in its most complex for can be cracked in a similar fashion in about an hour but AES 256bit is uncracked to date! The US government will allow Top Secret data to be transmitted wirelessly with this level of encryption. This security comes at a price tho.. The processor overhead with the higher level of security is quite high and as a result, the Vario will never be able to cope. We have stuff at work that can use AES 128bit encryption and it takes nearly 30 seconds to generate the key information on initial setup. This isnt to say that this mammoth amount of processing happens with each packet but it is still a really power hungry system of encryption. The overall data overhead can be as much as 60% of all the wireless traffic! I'd never say it cant happen cos i dont know enough about the architecture of the Vario, i would be very impressed if it is possible! as for your routers having a hard time, not sure what to suggest... TKIP shouldnt be crap in operation, its just a less secure method of encryption... would you believe, i have to give a presentaion on Wireless Ethernet tomorrow in front of a roomful of Controls Engineers!
Guest abbasqayyum Posted June 1, 2006 Report Posted June 1, 2006 cool! Thank you for the reply. mmm...that's a little annoying about AES. I bet you I'm the one that gets lucky enough to get hacked with something like my online banking password stolen and bank emptied!! So when you say it can be hacked in an hour. Won't that be too late... I mean, the key changes everu few mins so if you figure it out in an hour, won't that be worseless as the key would have changed??? or am I being thick??? Hope you're presentation went well. Abbas.
Guest Samsonite Posted June 1, 2006 Report Posted June 1, 2006 cool! Thank you for the reply. mmm...that's a little annoying about AES. I bet you I'm the one that gets lucky enough to get hacked with something like my online banking password stolen and bank emptied!! So when you say it can be hacked in an hour. Won't that be too late... I mean, the key changes everu few mins so if you figure it out in an hour, won't that be worseless as the key would have changed??? or am I being thick??? Hope you're presentation went well. Abbas. presentation went fine... thanks! Although TKIP keys changing on a pseudo random basis means, the process is cyclic. Once the sniffing software has sussed the encryption algorithm, it then needs to learn the time aspect. Its not a precise art, and its not that anyone with a PC can do it but the tools are available... Network security is a real concern and people should pay more attention to it at a domestic level. WEP encryption means that pretty much anyone can steal your broadband access and limit your download capability very easily! they could burn up your free 2gig from BT in single movie......... not to scare anyone tho!! :)
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