Secure signcryption method based on heterogeneous system

A heterogeneous system and security technology, applied in transmission systems, digital transmission systems, security communication devices, etc., to achieve the effect of protecting security communications

Active Publication Date: 2017-12-15
淮安纷云软件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But their scheme only allows IBC-based senders to send messages to PKI-based receivers

Method used

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  • Secure signcryption method based on heterogeneous system
  • Secure signcryption method based on heterogeneous system

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Embodiment Construction

[0033] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0034] The symbols used in the implementation are described in the table below:

[0035]

[0036] A secure heterogeneous system-based signcryption method, comprising the following steps:

[0037] (1) System initialization (Setup): PKG generates the master private key and system public parameters

[0038] 1) Given a security parameter k, PKG selects a bilinear mapping group with order q (G 1 ,G 2 ), group G 1 The generator P and the bilinear map G of 1 ×G 1 →G 2 .

[0039] 2) PKG selects...

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PUM

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Abstract

The invention discloses a secure signcryption method based on a heterogeneous system. The method comprises the following steps: a system initialization step; a key generation step based on IBC; a key generation step based on PKI; a sender obtains a to-be-output ciphertext by using his own private key, identity information, a public key of a receiver and a given message m by mans of multiplication, a hash function and an xor operation; the ciphertext rho, the public key (the formula is as shown in the specification) of the sender and the private key xr of the receiver are given, and the receiver calculates a verification equation by means of a point multiplication operation, an xor operation and a bilinear pairing operation. If the verification is passed, the ciphertext is received and the message m is output. Otherwise, the ciphertext is refused, and an error symbol T is output. By adoption of the secure signcryption method, the secure communication between a smart meter and an electric power management department is protected, their confidentiality and authentication is achieved, and certain safety and privacy requirements are satisfied.

Description

technical field [0001] The invention relates to a digital sign encryption method, which is used in a smart grid and belongs to the technical field of confidentiality and authentication in the smart grid. Background technique [0002] Compared with the traditional grid, the smart grid integrates advanced information and communication technology, and realizes a completely different grid concept and system from the traditional grid. The smart grid allows two-way transmission of current and information flow, and allows users to independently choose power consumption time slots and participate in the operation and management of the system. [0003] Smart meters contain processing chips and memory units, which are key components in smart grids. The smart meter can communicate with the household appliances in the user's home and the management equipment in the power management department. Thanks to the use of smart meters, the smart grid can monitor electricity transmission and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L9/08H04L9/00H04L29/06
CPCH04L9/006H04L9/0841H04L9/3236H04L9/3263H04L63/0442H04L63/0823H04L63/0876
Inventor 金春花赵建洋陈冠华
Owner 淮安纷云软件有限公司
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