摘要:
According to the present invention, techniques, including a method and system, for restoring and/or validating data and/or associated signature log entries are provided. One embodiment of the present invention provides a method for validating a restored message, having an entry generated in a signature log for a message, where the entry includes cryptographic information associated with the message; Next, when message is lost, the restored message is generated responsive to a request; and the restored message is validated using the signature log. In another embodiment a method for validating a selected log entry by using a signature log having a plurality of recorded log entries is provided. The method includes: computing a cryptographic value for the selected log entry; and determining if the cryptographic value is part of another recorded log entry.
摘要:
Techniques of improving the safety of an information processing system (1001) at low cost are provided, the information processing system having an OS provided with an access control function based upon discretionary access control for preventing illegal accesses to files. A method and apparatus for providing the information processing system with functions and areas (1007) usable only by a specific user different from a system administrator. The areas are provided with an access control function in order to prevent the access control function from being tampered.
摘要:
A method and system is provided for automatically trading of items such as stocks with improved security. After receiving an initial identifying contact from a contractor, a trader will contact the contractor with a different communication device from the initial contact with confirmation information that was stored in association with a contractor first identifying code. The contractor must then reconfirm the fairness of the trading data using at least a portion of the confirmation information.
摘要:
According to the present invention, techniques, including a method and system, for restoring and/or validating data and/or associated signature log entries are provided. One embodiment of the present invention provides a method for validating a restored message, having an entry generated in a signature log for a message, where the entry includes cryptographic information associated with the message; Next, when message is lost, the restored message is generated responsive to a request; and the restored message is validated using the signature log. In another embodiment a method for validating a selected log entry by using a signature log having a plurality of recorded log entries is provided. The method includes: computing a cryptographic value for the selected log entry; and determining if the cryptographic value is part of another recorded log entry.
摘要:
A method and system is provided for automatically trading of items such as stocks with improved security. After receiving an initial identifying contact from a contractor, a trader will contact the contractor with a different communication device from the initial contact with confirmation information that was stored in association with a contractor first identifying code. The contractor must then reconfirm the fairness of the trading data using at least a portion of the confirmation information.
摘要:
It has been impossible to suppress the copy of tickets which are printed on ordinary paper sheets. A client is provided with: a print control unit which prints a designated number of tickets. The acceptance server is provided with: a printed state verification unit which verifies the truth of the information on the state of printed matters; and a management unit which manages the type of a printer. Moreover, an issue server is provided with: a printing test data generating unit; a ticket generating unit which generates ticket data on the basis of the type of the printer; and a license data issuing unit which issues license data so as to instruct the number of ticket.
摘要:
It has been impossible to suppress the copy of tickets which are printed on ordinary paper sheets. A client is provided with: a print control unit which prints a designated number of tickets. The acceptance server is provided with: a printed state verification unit which verifies the truth of the information on the state of printed matters; and a management unit which manages the type of a printer. Moreover, an issue server is provided with: a printing test data generating unit; a ticket generating unit which generates ticket data on the basis of the type of the printer; and a license data issuing unit which issues license data so as to instruct the number of ticket.
摘要:
Techniques of improving the safety of an information processing system (1001) at low cost are provided, the information processing system having an OS provided with an access control function based upon discretionary access control for preventing illegal accesses to files. A method and apparatus for providing the information processing system with functions and areas (1007) usable only by a specific user different from a system administrator. The areas are provided with an access control function in order to prevent the access control function from being tampered.