Multifunctional digital signing circuit

A digital signature and multi-function technology, applied in machine execution devices, concurrent instruction execution, etc., can solve problems such as excessive software and hardware interaction, low computing speed, and increased hardware costs, achieving flexible application, high flexibility, and improved intelligence. horizontal effect

Active Publication Date: 2014-04-02
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This will cause 1. The time to generate the summary is too long; 2. There are too many interactions between software and hardware, resulting in low computing speed and increasing hardware costs.

Method used

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  • Multifunctional digital signing circuit
  • Multifunctional digital signing circuit
  • Multifunctional digital signing circuit

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Embodiment Construction

[0019] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0020] see figure 1 , is a block diagram of the multifunctional digital signature circuit of the present invention, which includes an instruction receiver 1, an instruction scheduler 2, an operation controller 3, a basic operation logic unit 4 and a data register 5, wherein,

[0021] The instruction receiver 1 receives the steps for realizing the digital signature algorithm and the data used for completing the digital signature algorithm, and stores them respectively; the instruction scheduler 2 is connected with the instruction receiver 1, and the The instruction scheduler 2 reads the instruction from the instruction receiver 1 for analysis, and generates a start signal for controlling the operation controller 3, and returns an instruction completion signal to the instruction receiver 1; The operation co...

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Abstract

The invention relates to a multifunctional digital signing circuit comprising an instruction receiver, an instruction dispatcher, an algorithmic controller, a basic algorithmic and logic unit and a data register, wherein the instruction receiver is used for receiving a step of realizing a digital signing algorithm and data for accomplishing the digital signing algorithm; the instruction dispatcher is used for reading an instruction from the instruction receiver for analysis and generating a starting signal for controlling the algorithmic controller; the algorithmic controller is used for receiving the starting signal generated by the instruction dispatcher, controlling the basic algorithmic and logic unit to accomplish SHA_1 abstraction, multiplication, addition, subtraction, inversion, dot product and dot addition in digital signing and returning an accomplishing signal to the instruction dispatcher; and the basic algorithmic and logic unit is connected with the data register, data are stored in the data register under the dispatching of the algorithmic controller, and then the calculation of the digital signing algorithm is accomplished. The multifunctional digital signing circuit reduces the complexity of hardware realization, saves the cost, increases the signing speed and reinforces the using flexibility.

Description

technical field [0001] The invention relates to the technical field of digital signatures, in particular to a multifunctional digital signature circuit. Background technique [0002] A digital signature is some data attached to a data unit, or a cryptographic transformation of a data unit. This data or transformation allows the recipient of the data unit to confirm the origin of the data unit and the integrity of the data unit and to protect the data from forgery by someone (eg, the recipient). It is a method of signing electronic messages and an important tool for authentication. It has important applications in identity authentication, data integrity, non-repudiation, and anonymity. The core technology in promotion. Commonly used digital signature systems include RSA, EIGamal, ECDSA and so on. Among them, the digital signature algorithm based on RSA is widely used now, and the digital signature algorithm ECDSA based on ECC is the hot direction of the future signature al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/38
Inventor 郭宝安苏斌罗世新田心王绍麟
Owner AEROSPACE INFORMATION
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