Electronic ticket presentation and transfer method

Claim 1

A method for presenting an electronic ticket for services utilizing a customer trusted agent, a first host processor, a merchant trusted agent and a second host processor, comprising the steps of: establishing a secure session between said customer trusted agent and said merchant trusted agent by using cryptographic means; said first host processor providing a first signal informing said customer trusted agent of said electronic ticket selected for presentation; said customer trusted agent sending a second signal including a copy of said electronic ticket to said merchant trusted agent, via said secure session; said merchant trusted agent checking the validity of said electronic ticket; said merchant trusted agent providing a third signal notifying said second host processor to deliver services identified by said electronic ticket; said merchant trusted agent sending a fourth signal notifying said customer trusted agent, via said secure session, that said electronic ticket is in use; said second host processor providing a fifth signal informing said merchant trusted agent that said services have been rendered; said merchant trusted agent sending a sixth signal including a new ticket value to said customer trusted agent; said customer trusted agent marking said electronic ticket not in use and updating ticket value; said customer trusted agent providing a seventh signal notifying said first host processor of the end of the transaction; said merchant trusted agent receiving an eighth signal from said customer trusted agent and providing a ninth signal notifying said second host processor of the end of the transaction, where in the event said transaction fails, said first and second trusted agents can roll-back their states using abort means.

Claim 2

A method for presenting an electronic ticket for services utilizing a customer trusted agent, a first host processor, a merchant trusted agent and a second host processor, comprising the steps of: establishing a secure session between said customer trusted agent and said merchant trusted agent by using cryptographic means; said first host processor providing a first signal informing said customer trusted agent of said electronic ticket selected for presentation; said customer trusted agent sending a second signal including a copy of said electronic ticket to said merchant trusted agent, via said secure session; said merchant trusted agent checking the validity of said electronic ticket; said merchant trusted agent providing a third signal notifying said second host processor to deliver services identified by said electronic ticket; said merchant trusted agent sending a fourth signal notifying said customer trusted agent, via said secure session, that said electronic ticket is in use; said second host processor providing a fifth signal informing said merchant trusted agent that said services have been rendered; said merchant trusted agent sending a sixth signal including a new ticket value to said customer trusted agent; said customer trusted agent marking said electronic ticket not in use and updating ticket value; said customer trusted agent providing a seventh signal notifying said first host processor of the end of the transaction; said merchant trusted agent receiving an eighth signal from said customer trusted agent and providing a ninth signal notifying said second host processor of the end of the transaction, where in the event said transaction fails, said first and second trusted agents can roll-back their states using abort means.

Claim 7

A method for transferring an electronic ticket from a first trusted agent to a second trusted agent, comprising the steps of: establishing a secure session between said first trusted agent and said second trusted agent by using cryptographic means; said first trusted agent signing over said electronic ticket by adding transfer information to a transfer history section of said electronic ticket and appending a digital signature to a sender signatures section of said electronic ticket; said first trusted agent sending a first signal including said signed over electronic ticket to said second trusted agent, via said secure session; said second trusted agent validating said signed over electronic ticket; said second trusted agent sending an acknowledgment signal to said first trusted agent, via said secure session; after receiving said acknowledgment signal, said first trusted agent sending a second signal to said second trusted agent, and providing a third signal notifying a first host processor of the end of the transaction; and after receiving said second signal, said second trusted agent sending a fourth signal notifying a second host processor of the end of the transaction, where in the event said transaction fails, said first and second trusted agents can roll-back their states using abort means.

Claim 8

A method for transferring an electronic ticket from a first trusted agent to a second trusted agent, comprising the steps of: establishing a secure session between said first trusted agent and said second trusted agent by using cryptographic means; said first trusted agent signing over said electronic ticket by adding transfer information to a transfer history section of said electronic ticket and appending a digital signature to a sender signatures section of said electronic ticket; said first trusted agent sending a first signal including said signed over electronic ticket to said second trusted agent, via said secure session; said second trusted agent validating said signed over electronic ticket; said second trusted agent sending an acknowledgment signal to said first trusted agent, via said secure session; after receiving said acknowledgment signal, said first trusted agent sending a second signal to said second trusted agent, and providing a third signal notifying a first host processor of the end of the transaction; and after receiving said second signal, said second trusted agent sending a fourth signal notifying a second host processor of the end of the transaction, where in the event said transaction fails, said first and second trusted agents can roll-back their states using abort means.