Enciphered sign board and composite encryption signing method

A signature board and encryption and decryption algorithm technology, which is applied in the field of system user identity verification, can solve the problems of low difficulty in cracking, poor security strength, and easy access by hackers, so as to ensure information security and enhance mobility.

Inactive Publication Date: 2008-03-19
HANWANG MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if a small number of users encrypt confidential information, they basically adopt a soft encryption method, and the traditional soft encryption method still uses computer memory, which makes password information and confidential information reside in memory fo

Method used

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  • Enciphered sign board and composite encryption signing method
  • Enciphered sign board and composite encryption signing method
  • Enciphered sign board and composite encryption signing method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0019] Figure 1 is a schematic diagram of the hardware structure of the encrypted signature board of the present invention. The device of the present invention works under the PKI / CA system (PKI refers to public key infrastructure, CA refers to certification authority), and has a processor module, a USB interface module, a handwriting scanning module, an encryption and decryption algorithm module, a random number generation module, and secure storage Space module. The processor module is used to control the coordination of the entire hardware system; the USB interface module is responsible for communicating with the computer, and the computer is equipped with matching signature recognition software; the handwriting scanning module is used to scan the horizontal and vertical coordinates in the plane coordinates and convert the physical coordinates It is a valid value; the encryption and decryption algorithm module is used to encrypt and decrypt data; the random number generation mo...

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PUM

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Abstract

A method for signature board encryption and encrypted signature composition belongs to the field of identity authentication. The technical proposal of the invention includes providing an encrypted signature board which has a processor module, a USB interface module, a hand-writing scanning module, an encryption/decryption algorithm module, a random number generating module and a safety storage space module, wherein private information of the user is stored in the module of the safety storage space. Connected to a computer, the invention identifies a written signature input by the user with a signature identifying software matched with the computer. The computer adopts public-key encrypted characteristic words, and the encrypted signature board adopts private-key encrypted characteristic words and performs comparison with the characteristic words stored in the safety storage space of the encrypted signature board to realize the protection of electronic signatures and the composite encryption of documents with the hardware encryption of the encrypted signature board and the software encryption of the computer. Mainly applied to the protection field of electronic signatures and personal information of computer users, the invention strengthens the safety and mobility of electronic signature carriers.

Description

Technical field [0001] The invention relates to a signature board and a signature method, in particular to an encryption signature board and a composite encryption signature method, and belongs to the field of system user identity verification. Background technique [0002] In order to solve the security problem of developing e-commerce on the Internet, electronic signatures were introduced to determine the identity of the counterparty before exchanging information and conducting commercial transactions. Electronic signatures mostly use the PKI / CA system and are managed by electronic certification agencies. The user registers the electronic security certificate and digital signature with the electronic certification authority, that is, the password registered with the certification authority, called the public key and the private key. There is a certain functional relationship between the public key and the private key. The public key is public. It is provided to the users who ne...

Claims

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Application Information

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IPC IPC(8): G06Q30/00G06F21/00H04L9/32G06F21/32
Inventor 侯涛王红岗王杰
Owner HANWANG MFG
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