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Interactive aggregation signature method and device, and storage medium

An interactive and updated technology, applied in digital transmission systems, user identity/authority verification, secure communication devices, etc., can solve problems such as inability to aggregate signature calculations, and achieve the effect of reducing efficiency and improving performance

Active Publication Date: 2020-07-31
HANGZHOU QULIAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the technical problem that a large number of aggregated signature calculations cannot be efficiently performed in the blockchain system in the prior art, the present invention provides an interactive aggregated signature method, device and storage medium

Method used

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  • Interactive aggregation signature method and device, and storage medium
  • Interactive aggregation signature method and device, and storage medium
  • Interactive aggregation signature method and device, and storage medium

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0033] This embodiment provides an interactive aggregated signature method, which is suitable for the node where the initiator is located, such as Figure 5 As shown, it includes: S101. Generate a challenge number according to the random numbers of all participants, and send the corresponding random number, challenge number and proposal message to the corresponding participants; S102. Receive the message from the participant. If the message contains partial signatures, then record the partial signatures; S103, judge whether the number of recorded partial signatures reaches the number required by the proposal message; if so, then S104, generate an aggregate signature from these partial signatures; if not, output the proposal message If it fails, the aggregated signature cannot be generated, or S101-S103 is repeated; among them, between S101 and S102, the participant receives the message containing the random number, challenge number and proposal message sent by the initiator; ju...

Embodiment 2

[0053] This embodiment provides a device, the device includes: one or more processors; memory, used to store one or more programs, when the one or more programs are executed by the one or more processors , causing the one or more processors to execute the method as described above.

[0054] In addition, this embodiment provides a storage medium storing a computer program, and when the program is executed by a processor, the method described in Embodiment 1 above is implemented.

[0055] figure 1 It is a schematic structural diagram of a device provided by an embodiment of the present invention.

[0056] Such as figure 1 As shown, as another aspect, the present application also provides a device 500, including one or more central processing units (CPU) 501, which can be 508 programs loaded into random access memory (RAM) 503 to execute various appropriate actions and processes. In the RAM 503, various programs and data necessary for the operation of the device 500 are also ...

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Abstract

The invention discloses an interactive aggregation signature method and device and a storage medium, and belongs to the technical field of data encryption. The method comprises the steps of: S101, generating a challenge number according to random numbers of all participants, and sending the random numbers, the challenge number and proposal messages corresponding to the participants to the corresponding participants respectively; S102, receiving the message of the participant, and recording part of the signature if the message contains part of the signature; S103, judging whether the quantity of the recorded partial signatures reaches the quantity required for the proposal message to pass or not; S104, if so, generating an aggregated signature from the partial signatures; and if not, outputting that the proposal message does not pass, and generating the aggregated signature, or repeating the steps S101-S103. Aiming at the technical problem that a large amount of aggregated signature calculation cannot be efficiently performed in a blockchain system in the prior art, a large amount of aggregated signature calculation can be efficiently performed.

Description

technical field [0001] The present invention relates to the technical field of data encryption, in particular to an interactive aggregation signature method, device and storage medium. Background technique [0002] Digital signatures are already an integral part of computer systems. Whether it is identity authentication or communication encryption, digital signature is the core. Digital signatures cryptographically ensure that identities cannot be forged and data cannot be tampered with. This is of great significance to the establishment of a credit society. [0003] In voting systems, multiple participants independently vote on proposals and sign the proposals with their own digital certificates. An aggregated signature algorithm is an algorithm that combines multiple signatures into one signature. The signature size can be reduced by aggregated signatures, thereby reducing the block size of the blockchain system that frequently uses multiple signatures, so it is of gre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L9/08
CPCH04L9/3247H04L9/3255H04L9/0869H04L9/50H04L9/3271
Inventor 邱炜伟李伟张珂杰黄方蕾汪晓可
Owner HANGZHOU QULIAN TECH CO LTD
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