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| Egress network service monitor |
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| Network traffic controller |
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| Tool for monitoring health of networks |
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| System and method for providing broadband data service |
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System and method for providing fault tolerant transcriptions over an unsecured communication channel
| Details |
Inventors: Kara, Salim G.; Desai, Manish; Husain, Mohammas A.; Pagel, Martin J.; Hinh, Ken D.;
Assignee: E-Stamp Corporation (San Mateo, CA)
Primary Examiner: Cosimano; Edward R.
Assistant Examiner:
Attorney, Agent or Firm: Fulbright & Jaworski L.L.P.
A system and method for conducting secure fault tolerant transactions, such as financial transaction, remotely is disclosed. The transactions are conducted utilizing a portable processor device which is initialized and authorized according to the present invention. Thereafter, the portable processor operates to conduct transactions involving information exchange through unsecured communication paths according to a predetermined protocol. The protocol includes the use of atomic transactions within the portable processor device. |
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DETAILED DESCRIPTION These and other objects, features and technical advantages are achieved by a system and method wherein a secure portable device is constructed with a memory and having a processor controlling that memory.
The device is arranged to communicate with a host processor based system, such as a PC, in order to exchange instructions therewith.
The portable processor device has on board certain security related fields, such as cryptographic keys, the current date and time, the balance, random number generators, number of transactions that have taken place on the device, and the serial number of the device.
It also has on board, when the user initializes/authorizes the device, information about the owner of the device including his/her name, the registration number and other information about the owner such as the user's address and password.
Typically, the portable processor device will consist of a general purpose processor device which, as produced, includes certain necessary components for utilization as a secure portable processor according to the present invention.
Upon initialization, a "raw" general purpose processor device will be adapted to operate according to the present invention.
For example, program structure including a limited number of commands will be downloaded to firmware in the portable processor.
Likewise, memory areas and cryptographic keys will be initialized in the device.
Upon completion of initialization, the ability to change this initialization information will be "locked down," or irreversibly established, in order to unalterably define the general purpose processor device as a portable processor of the present invention.
In order to utilize a particular portable processor device, a user will be required to receive authorization.
The authorization process is to set up the secure device for use by a particular user and/or for particular purposes according to the present invention.
Authorization may include the storage of certain information within the portable processor itself, such as the aforementioned information about the owner of the device including his/her name, the registration number and other information about the owner such as the user's address and password
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