| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3fc6890df1074a35356f43e035472eee |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W12-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W12-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L63-1475
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W76-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W12-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L9-065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W12-106
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W12-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W12-108
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W88-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W12-122
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W12-121
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L63-123
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W12-037
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L9-00 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04W36-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04W12-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04W12-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04W12-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G09C1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04L9-32 |
| filingDate |
2001-10-09^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2009-10-06^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3f6680f810f9a0bcd5a3c523b9bbff2e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7db7ef2c10c6f05571a67b70b5c0a8f8 |
| publicationDate |
2009-10-06^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2424496-C |
| titleOfInvention |
A system for ensuring encrypted communication after handover |
| abstract |
A fraudulent intruder can eavesdrop on a call by removing information about an encryption algorithm when a multimode mobile station sends an unprotected initial signaling message containing this information over the radio interface to the mobile telecommunications system. The attempt can be prevented in a universal mobile telecommunications system (UMTS) comprising at least two radio access networks providing mobile stations with access to a multimode mobile station, and at least one core network. During connection setup with a first radio access network, the multimode mobile station sends an unprotected initial signaling message that includes information about those encryption algorithms that the multimode mobile station supports when it communicates in a second radio access network. The first radio access network saves some or all the information of it. Then it composes and sends an integrity-protected message that includes information about the encryption algorithms supported by the multimode mobile station in the second radio access network. |
| priorityDate |
2000-11-28^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |