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A5/3 Encryption

Viewing 11 posts - 1 through 11 (of 11 total)
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  • 23rd October 2007 at 15:37 #49530
    RK
    Guest

    I am familiar with A5/2, but what is A5/3 encryption ? I assume there should be no impact on RAN Engg with this….(?)

    RK

    26th October 2007 at 08:36 #49531
    James
    Guest

    Please explain about A5/2 encyyption

    26th October 2007 at 13:41 #49532
    pix
    Guest

    A5/3 is the new standard for cyphering in mobile communication… it should be implemented in GSM pretty soon !

    have a look there for more technical details :

    en.wikipedia.org/wiki/KASUMI_(block_cipher)

    26th October 2007 at 15:15 #49533
    james
    Guest

    thanks a lot pix

    9th January 2008 at 15:41 #49534
    Michele
    Guest

    It is already supported on Siemens BSS.

    10th January 2008 at 17:34 #49535
    RK
    Guest

    Which Siemens release supports A5/3 ? can you confirm, please.

    Thanks,

    RK

    24th January 2008 at 15:13 #49536
    Mbile Hacker
    Guest

    Is it possible to decode mobile number if both end bluetooth is on???

    24th January 2008 at 16:05 #49537
    Michele
    Guest

    Siemens supports A5/3 starting from BR9.0 SW release.

    5th March 2008 at 09:04 #49538
    Zehan
    Guest

    Since the ciphering algorithm A5/2 encryption is weaker (encryption security) compared to A5/1. Would there be any other reason for an operator to use the ciphering algorithm A5/2 only on their BSSAP end, but A5/1 on MSC PLMN?

    5th March 2008 at 14:03 #49539
    Pix
    Guest

    Zehan,

    As far as i know, no.. this is a security breach.

    5th March 2008 at 14:04 #49540
    Pix
    Guest

    … or perhaps there is another operator using A5/2, and therefore they are also using A5/2 in order to avoid intra PLMN HO failure ? 5change of ciphering during a HO is certainly a little bit complicated…)

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Viewing 11 posts - 1 through 11 (of 11 total)
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