Patent application number | Description | Published |
20080211624 | Physical access control - A system and method are disclosed for controlling physical access through a digital certificate validation process that works with standard certificate formats and that enables a certifying authority (CA) to prove the validity status of each certificate C at any time interval (e.g., every day, hour, or minute) starting with C's issue date, D | 09-04-2008 |
20080232590 | Micropayment Processing Method and System - A method of producing an offer package includes defining, within the offer package, a description of an offered product. The cost of the offered product and the merchant making the offer are also defined within the offer package, which includes an encrypted version of the offered product. | 09-25-2008 |
20090276631 | Certificate revocation system - A method of managing certificates in a communication system having a certifying authority and a directory. Preferably, the method begins by having the certifying authority generate certificates by digitally signing a given piece of data. At a later point time, the certifying authority may produce a string that proves whether a particular certificate is currently valid without also proving the validity of at least some other certificates. The technique obviates use of certification revocation lists communicated between the certifying authority and the directory. | 11-05-2009 |
20100241569 | METHOD AND SYSTEM FOR MICROPAYMENT TRANSACTIONS - A micropayment system and method is presented for a payor U to establish payment to payee M for a transaction T, which typically has a very low value T | 09-23-2010 |
20100268956 | Efficient and secure data currentness systems - Indicating data currentness includes, on any date of a sequence of dates, issuing a proof indicating the currentness status of the data during a particular time interval. The proof may be a digital signature. The time interval may be in the form of a current date and an amount of time. The proof may include a digital signature of the time interval. The proof may include a digital signature of the time interval and the data. The proof may include a digital signature of the time interval and a compact form of the data, such as a hash. Indicating data currentness may also include distributing the proofs to a plurality of unsecure units that respond to requests by users for the proofs. Indicating data currentness may also include gathering a plurality of separate pieces of data and providing a single proof for the separate pieces of data. The data may be electronic documents. | 10-21-2010 |
20120274444 | PHYSICAL ACCESS CONTROL - A system and method are disclosed for controlling physical access through a digital certificate validation process that works with standard certificate formats and that enables a certifying authority (CA) to prove the validity status of each certificate C at any time interval (e.g., every day, hour, or minute) starting with C's issue date, D | 11-01-2012 |
20130120109 | LOGGING ACCESS ATTEMPTS TO AN AREA - Logging events associated with accessing an area includes recording an event associated with accessing the area to provide an event recording and authenticating at least the event recording to provide an authenticated recording. Recording an event may include recording a time of the event. Recording an event may include recording a type of event. The event may be an attempt to access the area. Recording an event may include recording credentials/proofs used in connection with the attempt to access the area. Recording an event may include recording a result of the attempt. Recording an event may include recording the existence of data other than the credentials/proofs indicating that access should be denied. Recording an event may include recording additional data related to the area. Authenticating the recording may include digitally signing the recording. | 05-16-2013 |