Abstract: Transaction systems and methods for advancing a committed time in the future are described herein. In the present transaction systems and methods, the first end can be permitted to pre-hatch a time capsule signature before the committed time. The time capsule signature scheme here is conducted based on an identity-based trapdoor relation (IDTR). Moreover, an extended time capsule signature scheme is conducted based on an extended identity-based trapdoor relation (IDTR). By using an extended IDTR primitive, the present transaction systems and methods can distinguish the time capsule signature is validated before or after the committed time t.

Abstract: Systems and methods which provide identification of a user in combination with mutual authentication between a user and identification host are shown. Embodiments further provide mutual authentication between the identification host and a resource for which access is controlled, thereby providing three-party authentication (e.g., user, identification host, resource). Although utilizing biometric data for user identification, embodiments store such biometric information within devices which remain in the control of users. Protocols implemented according to embodiments facilitate a decentralized approach to user identification and authentication to allow a user to interact with any of a number of identification hosts for user identification and authorization. Auditing and tracing of user identification and authentication and/or resource access is provided according to embodiments.

Abstract: The invention discloses a method for implementing encryption and transmission of information and system thereof. The method comprises the following steps when a sender sends information to a receiver: a client of the sender encrypts the information by using a unique identifier of a receiver identity as a public key; the sender sends the encrypted information to the receiver; the receiver receives the encrypted information, and a client of the receiver performs decryption by using a user private key; wherein the client of the receiver obtains the user private key by one-off registration and the user private key matches with the unique identifier of the receiver identity. The system comprises an information transmission platform, a sender and a receiver connected to each other by the information transmission platform, clients provided in the sender and the receiver, and a registration component.

Abstract: Systems and methods which provide identification of a user in combination with mutual authentication between a user and identification host are shown. Embodiments further provide mutual authentication between the identification host and a resource for which access is controlled, thereby providing three-party authentication (e.g., user, identification host, resource). Although utilizing biometric data for user identification, embodiments store such biometric information within devices which remain in the control of users. Protocols implemented according to embodiments facilitate a decentralized approach to user identification and authentication to allow a user to interact with any of a number of identification hosts for user identification and authorization. Auditing and tracing of user identification and authentication and/or resource access is provided according to embodiments.

Abstract: The invention discloses a method for implementing encryption and tranmission information and system thereof. The method comprises the following steps when a sender sends information to a receiver: a client of the sender encrypts the information by using a unique identifier of a receiver identity as a public key; the sender sends the encrypted information to the receiver; the receiver receives the encrypted information, and a client of the receiver performs decryption by using a user private key; wherein the client of the receiver obtains the user private key by one-off registration and the user private key matches with the unique identifier of the receiver identity. The system comprises an information transmission platform, a sender and a receiver connected to each other by the information transmission platform, clients provided in the sender and the receiver, and a registration component.

Abstract: Transaction systems and methods for advancing a committed time in the future are described herein. In the present transaction systems and methods, the first end can be permitted to pre-hatch a time capsule signature before the committed time. The time capsule signature scheme here is conducted based on an identity-based trapdoor relation (IDTR). Moreover, an extended time capsule signature scheme is conducted based on an extended identity-based trapdoor relation (IDTR). By using an extended IDTR primitive, the present transaction systems and methods can distinguish the time capsule signature is validated before or after the committed time t.