10results about "Postage metering system" patented technology

A postage generating system and method that allows for the generation of postage without the use of a PSD, while still maintaining the necessary data integrity and non-repudiation aspects. The cryptographic and accounting functions are performed separately when an indicium is generated and reconciled to ensure that every transaction is properly accounted for and funds are deducted from the user's account. The cryptographic functions for an indicium are performed utilizing a cloud-based Hardware Security Module (HSM). Transaction records for indicium generated by an HSM are stored in a database. The accounting is performed by a transaction server, separate and remote from the HSM, to make updates to the client's account to account for generated indicia. An Integrity Monitor Server monitors the consistency of the transactions, i.e., that every transaction performed by an HSM is properly accounted for by the transaction server and funds are deducted from the user's account.

A digital currency wallet includes a storage unit for digital currency and a transaction unit that checks the wallet mode before transactions. It supports a normal wallet mode and a crisis wallet mode. The transaction unit creates and stores exchange data during normal exchanges. The wallet can switch to crisis mode, where the transaction unit enables reduced exchange data storage to allow more offline exchanges.

According to the present solution a digital currency wallet (10), comprises - a storage unit (12) comprising digital currency (15) and a digital currency wallet mode (24); and - a transaction unit (11) is configured to check the stored digital currency wallet mode (24) before using the digital currency in a digital currency exchange (100, 300, 400); the digital currency wallet (10) supporting a first digital currency wallet mode, the first digital currency wallet mode being a normal digital currency wallet mode, and a second digital currency wallet mode; the transaction unit (11) - when using the digital currency (15) in a digital currency exchange (100) in the normal digital currency wallet mode - is configured to create and / or receive exchange data (16) and to store the exchange data (16) in the storage unit (12); characterized in that the second digital currency wallet mode is a crisis digital currency wallet mode; the digital currency wallet (10) is configured to switch from the normal digital currency wallet mode to the crisis digital currency wallet mode; and the transaction unit (11) - when using the digital currency (15) or crisis digital currency (25) in an offline digital currency exchange (300) in the crisis digital currency wallet mode - is configured for reduced exchange data storage in order to increase a number of possible offline digital currency exchanges (300) in the crisis digital currency wallet mode.

According to the present solution, a digital currency wallet comprises a storage unit comprising a digital currency and a digital currency wallet mode and a transaction unit configured to check the stored digital currency wallet mode before using the digital currency in a digital currency exchange. The digital currency wallet supports a first digital currency wallet mode and a second digital currency wallet mode, the first digital currency wallet mode being a normal digital currency wallet mode, when using the digital currency in a digital currency exchange in the normal digital currency wallet mode, the transaction unit is configured to create and / or receive exchange data and store the exchange data in the storage unit. The second digital currency wallet mode is a crisis digital currency wallet mode, the digital currency wallet is configured to switch from the normal digital currency wallet mode to the crisis digital currency wallet mode. When using the digital currency or the crisis digital currency in an offline digital currency exchange in the crisis digital currency wallet mode, the transaction unit is configured for reduced exchange data storage in order to increase the number of possible offline digital currency exchanges in the crisis digital currency wallet mode.

The invention provides a method to issue a digital stamp for correspondence services, the method comprising the steps of: a stamp vendor receives from a requestor a request to issue the digital stamp for a particular correspondence, the request comprising addresses of a sender and a receiver; the stamp vendor encrypts at least the addresses of the sender and the receiver by using a public key of a delivery company, and generates a digital stamp file comprising at least the encrypted addresses; the stamp vendor publishes the digital stamp file in a distributed ledger as a transaction, and receives back a transaction identifier; and the stamp vendor transfers the transaction identifier, or a derived form thereof, to the requestor in order to be included in the correspondence as the digital stamp.

According to the present solution a digital currency wallet (10), comprises - a storage unit (12) comprising digital currency (15) and a digital currency wallet mode (24); and - a transaction unit (11) is configured to check the stored digital currency wallet mode (24) before using the digital currency in a digital currency exchange (100, 300, 400); the digital currency wallet (10) supporting a first digital currency wallet mode, the first digital currency wallet mode being a normal digital currency wallet mode, and a second digital currency wallet mode; the transaction unit (11) - when using the digital currency (15) in a digital currency exchange (100) in the normal digital currency wallet mode - is configured to create and / or receive exchange data (16) and to store the exchange data (16) in the storage unit (12). The second digital currency wallet mode is a crisis digital currency wallet mode; wherein the digital currency wallet (10) is configured to switch from the normal digital currency wallet mode to the crisis digital currency wallet mode, if crisis switching data are received. The crisis switching data are public crisis switching data (30) and the public crisis switching data (30) will be published and / or distributed in a crisis situation.

According to the present solution, a digital currency wallet comprises a storage unit comprising a digital currency and a digital currency wallet schema and a transaction unit configured to check the stored digital currency wallet schema before using the digital currency in a digital currency exchange. The digital currency wallet supports a first digital currency wallet schema and a second digital currency wallet schema, the first digital currency wallet schema being a normal digital currency wallet schema, when using the digital currency in a digital currency exchange in the normal digital currency wallet schema, the transaction unit is configured to create and / or receive exchange data and store the exchange data in the storage unit. The second digital currency wallet schema is a crisis digital currency wallet schema, wherein if crisis switching data is received, the digital currency wallet is configured to switch from the normal digital currency wallet schema to the crisis digital currency wallet schema. The crisis switching data is public crisis switching data and it will be published and / or distributed in a crisis situation.

In certain embodiments, cryptographic-chain-based verification of postage transaction records may be facilitated. In some embodiments, a customer computer system may obtain a customer private key associated with a customer from a secure local storage at the customer computer system. The customer computer system may obtain (i) a first vendor digital signature derived from a first postage transaction record and (ii) a second postage transaction record. The customer computer system may create a customer digital signature based on (i) the customer private key, (ii) the first vendor digital signature, and (iii) the second postage transaction record. The customer computer system may provide the customer digital signature to a vendor computer system associated with the postage vendor, and, in response, obtain a second vendor digital signature from the vendor computer system, wherein the second vendor digital signature is based on (i) a vendor private key associated with the postage vendor and (ii) the customer digital signature.

A digital currency wallet includes a storage unit containing digital currency and a digital currency wallet mode, and a transaction unit configured to check the wallet mode before using the digital currency in a digital currency exchange. The wallet supports a first digital currency wallet mode, which is a normal mode, and a second, crisis mode. When using the digital currency in normal mode, the transaction unit creates or receives exchange data and stores it in the storage. The crisis mode is activated if crisis switching data—public in nature—are received, allowing the wallet to switch modes during a crisis situation. The public crisis switching data are published or distributed to facilitate this transition, ensuring the wallet adapts to emergencies while maintaining secure digital currency transactions.

The invention provides a method to issue a digital stamp for correspondence services, the method comprising the steps of: a stamp vendor receives from a requestor a request to issue the digital stamp for a particular correspondence, the request comprising addresses of a sender and a receiver; the stamp vendor encrypts at least the addresses of the sender and the receiver by using a public key of a delivery company, and generates a digital stamp file comprising at least the encrypted addresses; the stamp vendor publishes the digital stamp file in a distributed ledger as a transaction, and receives back a transaction identifier; and the stamp vendor transfers the transaction identifier, or a derived form thereof, to the requestor in order to be included in the correspondence as the digital stamp.