| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d7576285d411d00c697e07270d2814a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_60e21de07fa18fc54e2150daffc14654
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5e6ce174b10ebff65e4d920f3743bf5b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cd9fe80fd08327c43c568ad184f386ed |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L63-061 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L9-085
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L9-0847
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F21-72
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L9-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G09C1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L9-3073 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G09C1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04L9-08 |
| filingDate |
2011-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c922065d72b007af5e710f072780ac4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6f5b967a29b1e2d1ff4db947352d8552 |
| publicationDate |
2012-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2012132136-A1 |
| titleOfInvention |
Code processing system, key generation device, encoder, decoder, code processing method and code processing program |
| abstract |
The purpose of the present invention is to provide a distributed, multi-administrator functional code wherein security for an entire system does not rely on a single entity. From among a plurality of key generation devices (100), any one key generation device (100) generates gparam and each key generation device (100) generates an administrator public key (apk) and an administrator secret key (ask) on the basis of gparam. At least some of the plurality of key generation devices (100) generate one piece of a user decoding key (usk gid, (t,xt) ) on the basis of the administrator secret key (ask). A user decodes encoded data (ct S ) by combining, as a single decoding key, the decoding keys (usk gid, (t,xt) ) generated by at least some of the key generation devices (100). |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110738513-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105637799-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105637799-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114301613-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114301613-A |
| priorityDate |
2011-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |