Integrity check in a communication system
First Claim
1. A method for carrying out an integrity check for a system comprising a first node and a second node, a plurality of communication channels being provided between said first node and said second node, said method comprising:
- calculating an integrity output using a plurality of values, at least one of said values being arranged to comprise information relating to the identity of said channel, each having a different identity and at least one of said values being identical for said different channels.
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Accused Products
Abstract
A method of communication between a first node and a second node for a system where a plurality of different channels is provided between said first and second node. The method comprises the step of calculating an integrity output. The integrity output is calculated from a plurality of values, some of said values being the same for said different channels. At least one of said values is arranged to comprise information relating to the identity of said channel, each channel having a different identity. After the integrity output has been calculated, Information relating to the integrity output is transmitted from one of said nodes to the other.
107 Citations
27 Claims
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1. A method for carrying out an integrity check for a system comprising a first node and a second node, a plurality of communication channels being provided between said first node and said second node, said method comprising:
calculating an integrity output using a plurality of values, at least one of said values being arranged to comprise information relating to the identity of said channel, each having a different identity and at least one of said values being identical for said different channels. - View Dependent Claims (2, 3)
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4. A method of communication between a first node and a second node, a plurality of different channels being provided between said first and second node, said method comprising the steps of:
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calculating an integrity output using a plurality of values, one of said values being an integrity key, each of said channels having a different integrity key; and
transmitting information relating to the output of an integrity algorithm from one of said nodes to the other. - View Dependent Claims (5, 6)
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7. A method of communication between a first node and a second node, a plurality of different channels being provided between said first and second node, said method comprising:
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triggering an authentication procedure; and
calculating a desired number of integrity parameters by the authentication procedure. - View Dependent Claims (8, 9)
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10. A node in a system comprising said node and a further node, a plurality of different channels being provided between said nodes, said node comprising:
means for calculating an integrity output, said integrity output being calculated from a plurality of values, at least one of said values being arranged to comprise information relating to an identity of said channel, each channel having a different identity and at least one of said values being identical for said different channels. - View Dependent Claims (11, 12)
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13. An apparatus for use in a system comprising said node and a further node of communication between a first node and a second node, a plurality of different channels being provided between said first and second node, said apparatus comprising:
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means for calculating an integrity output, said integrity output being calculated from a plurality of input values, some of said input values being the same for said different channels, at least one of said input values being arranged to comprise information relating to the identity of said channel, each channel having a different identity and at least one of said input values are identical for said different channels; and
means for transmitting information relating to the integrity output from one of said nodes to the other, wherein said information relating to the identity of the channel is combined with at least one other input value. - View Dependent Claims (14, 15)
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16. An apparatus for use in a system comprising said node and a further node of communication between a first node and a second node, a plurality of different channels being provided between said first node and said second node, said apparatus comprising:
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means for triggering an authentication procedure; and
means for calculating a desired number of integrity parameters by the authentication procedure. - View Dependent Claims (17, 18)
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19. A device for use in a system comprising said node and a further node of communication between a first node and a second node, a plurality of different channels being provided between said first and second node, said device comprising:
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a module that calculates an integrity output, said integrity output being calculated from a plurality of input values, some of said input values being the same for said different channels, at least one of said input values being arranged to comprise information relating to the identity of said channel, each channel having a different identity and at least one of said input values are identical for said different channels; and
a second module, wherein the transmitter transmits information relating to the integrity output from one of said nodes to the other, wherein said information relating to the identity of the channel is combined with at least one other input value. - View Dependent Claims (20, 21)
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22. A computer program embedded on computer readable medium for calculating an integrity output use in a system comprising a node and a further node, a plurality of different channels being provided between said nodes, said algorithm comprising means for calculating an integrity output, said integrity output being calculated from a plurality of values, at least one of said values being arranged to comprise information relating to the identity of said channel, each channel having a different identity and at least one of said values being identical for said different channels,
wherein said information relating to the identity of the channel is combined with at least one other input value.
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25. An apparatus for use in a system comprising said node and a further node of communication between a first node and a second node, a plurality of different channels being provided between said first node and said second node, said apparatus comprising:
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triggering module that triggers an authentication procedure; and
calculator module that calculates a desired number of integrity parameters by the authentication procedure. - View Dependent Claims (26, 27)
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Specification