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A new bidding encryption and decryption method based on the national secret sm2 algorithm

A bidding and algorithm technology, which is applied in the field of new bidding encryption and decryption PKI solutions, can solve problems such as inapplicability, achieve better security, increase efficiency, reduce system load and network bandwidth

Active Publication Date: 2021-11-05
江苏先安科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] For example: a user downloads a digital envelope, where the size of the digital envelope is larger than the size of the tender, and the uploaded tender encrypted with the public key is also larger than the size of the tender. If the tender is 50MB, it means that the uploaded and downloaded data is greater than 50*2MB, that is, greater than 100MB. If 5 Users upload and download at the same time, which is 500MB of data. If the number of users is slightly larger, the network bandwidth and platform pressure can be imagined, so the original method is not suitable for large-scale bidding platforms or public resource trading platforms

Method used

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  • A new bidding encryption and decryption method based on the national secret sm2 algorithm
  • A new bidding encryption and decryption method based on the national secret sm2 algorithm

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Embodiment Construction

[0045] The present invention will be further described below with reference to the accompanying drawings and specific examples.

[0046] The new type of bidding and decryption method based on the national SM2 algorithm based on the embodiment, including the electronic bidding bidding border encryption process and the electronic bidding bidding branch decryption process, specifically:

[0047] The electronic bidding bidding border encryption process:

[0048] Step 1, the user uses the preformed cloud encryption platform public key certificate to the bidding file D A T A encryption, generate P c _e N c (D a t a);

[0049] Step 2, the user uses the tool to call the user USB Key to issue a digital envelope for the bidding file of the encrypted country, generate Pk C s 7 (P c -E N c (D A T a));

[0050] Step 3: Upload Digital Envelope P K C S 7 (p c -E N c (D A T A)) to the bidding platform;

[0051] Step 4, bidding the bidding platform Pk C s 7 (P c -E N c (D A T A)) Sends to the clou...

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Abstract

The invention discloses a new bidding encryption and decryption method based on the national secret SM2 algorithm, including the electronic bidding document encryption process, 1. The user uses the cloud encryption platform public key certificate prefabricated in the tool to encrypt the electronic bidding document; 2. The user Use the tool to call the user's USB KEY to issue a digital envelope to the encrypted electronic bidding documents; 3. Upload the digital envelope to the bidding platform; 4. The bidding platform sends the digital envelope to the cloud encryption platform. The invention also discloses the decryption process of the electronic bidding document. The cloud encryption platform directly decrypts the encrypted electronic bidding document on the cloud encryption platform by extracting the parameters in the digital envelope, calculating and transferring the temporary point of the elliptic curve, without using At bid opening, the supplier downloads the complete digital envelope and re-uploads the decrypted electronic bidding documents – a complex and resource-intensive decryption method.

Description

Technical field [0001] The present invention relates to computer information security techniques, specifically designed a new bidding and decryption PKI solution based on national SM2 algorithm. Background technique [0002] like figure 1 As shown, the existing bidding plus decryption program process. [0003] Its encryption process is: [0004] 1. Write an electronic bidding bid to represent the e-bidding bidding bid on D A T A; [0005] 2. User uses the public key P of the prefabricated bidding platform in the offline encryption tool t Bringing the bidding document D A T A encryption, generating P t -E N c (D a t a); [0006] 3. User User Use Tool Call User USB Key to encrypted bidding files P t _E N c (D A T a) issuing a digital envelope to generate Pk C s 7 (P t _e n c (d a t a)); [0007] 4. Upload Digital Envelope P K C S 7 (P t _e n c (d a t a)) to the bidding platform; [0008] Its decryption process is: [0009] 1. Digital Envelope Pk C s 7 (P) from the Bidding Platform ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06G06F21/60G06Q30/08H04L9/08G06F21/62
CPCG06F21/602G06F21/6218G06Q30/08H04L9/0825H04L9/0877H04L63/0428
Inventor 赵统一庄昱垚
Owner 江苏先安科技有限公司
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