Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Reexamination Certificate
2011-06-14
2011-06-14
Cervetti, David García (Department: 2436)
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
C380S279000, C380S270000
Reexamination Certificate
active
07961875
ABSTRACT:
The invention provides a method for ciphering and transmitting data, to be used by a communication device being arranged to transmit data through a first data port (241, 2002) according to a first transmission protocol, and to form ciphered exploiting a ciphering algorithm being fed with a first set of ciphering parameters, comprising a ciphering parameter CP5; said device being further arranged to transmit data through a second data port (242, 2003) according to an alternative transmission protocol, said method comprising the steps of: defining an alternative ciphering parameter, ACP, having a bit length equal to the bit length of CP5, forming a second set of ciphering parameters by substituting said CP5with said ACP in said first set of ciphering parameters, forming ciphered data by subjecting the data to said ciphering algorithm being fed with said second set of ciphering parameters, transmitting said ciphered data through said second data port (242, 2003). The invention also provides a software program and communication devices realising said method.
REFERENCES:
patent: 5835592 (1998-11-01), Chang et al.
patent: 7577256 (2009-08-01), Vialen et al.
patent: 7609837 (2009-10-01), Bennett
patent: 7627113 (2009-12-01), Surendran et al.
patent: 7734049 (2010-06-01), Niemi et al.
patent: 2003/0081783 (2003-05-01), Adusumilli et al.
patent: 2004/0160903 (2004-08-01), Gai et al.
patent: 2004/0236965 (2004-11-01), Krohn
patent: 2004/0247124 (2004-12-01), Kamachi
patent: 2005/0015583 (2005-01-01), Sarkkinen et al.
patent: 2005/0111658 (2005-05-01), Ida et al.
patent: 2005/0277434 (2005-12-01), Tuomi et al.
patent: 2006/0177050 (2006-08-01), Surendran et al.
patent: 2006/0230274 (2006-10-01), Surendran et al.
patent: WO 03/036908 (2003-05-01), None
patent: WO 03/105007 (2003-12-01), None
patent: WO 2004/006532 (2004-01-01), None
Herwono Ian
Sachs Joachim
Cervetti David García
Telefonaktiebolaget L M Ericsson (publ)
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