Enciphering procedure based on the DES algorithm

Applicable in communications systems in the sending of data among user equipment of nodes connected to a network. It is characterised in that it comprises generating random keys (6) that are different for each packet, which are used for enciphering each packet by means of the DES enciphering algorit...

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Bibliographic Details
Main Authors JUAN CARLOS, RIVEIRO INSUA, ESTEVE LLORET, MARIA, BLASCO CLARET, JORGE VICENTE
Format Patent
LanguageChinese
English
Published 16.02.2005
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:Applicable in communications systems in the sending of data among user equipment of nodes connected to a network. It is characterised in that it comprises generating random keys (6) that are different for each packet, which are used for enciphering each packet by means of the DES enciphering algorithm, and the sending in the header of the packet of that random key (6), in turn enciphered (9) by means of a more secure algorithm than the DES algorithm, which permits improvement in the security of transmissions on a non-secure medium to which are connected the nodes and user equipment of a telecommunications system using the procedure of the invention instead of the DES enciphering algorithm.
Bibliography:Application Number: TW200493113534