| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a23437651cb9b97a3984eef4e7cd99c4 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L2209-603
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L9-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L9-0861 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F21-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L9-065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G09C1-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04L9-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04L9-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04L9-06 |
| filingDate |
2005-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_91b3dadec9b69536eab620192b574ab8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be16d36b6a313a1631e39ae89c73689e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_02b919e0088f899015abbe62abd1b25a |
| publicationDate |
2012-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
NZ-597909-A |
| titleOfInvention |
Permutation data transform to enhance security |
| abstract |
An key deriver apparatus, comprises an input port to receive a master key; a divider to divide said master key into a first segment and a second segment; a concatenator to concatenate said first segment and a counter to produce a modified first segment; a hasher to securely hash said modified first segment into a hash value; a determiner to determine a first number and a second number from said second segment; a calculator including an implementation of an arithmetic formula to compute a result using said hash value, said first number, and said second number; and a bit selector to select a set of bits from said result as a derivative key. Further disclosed is a data security device, comprising the above described key deriver apparatus and an encrypter to encrypt data using said derivative key. |
| priorityDate |
2004-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |