Proxy re-designated verifier signcryption method
A technology for specifying verifiers and specifying content, which is applied to key distribution and can solve problems such as signcryption without a designated verifier
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0070] 1. The steps of generating system parameters and signcryption key pair include:
[0071] 1)云存储平台选择PBC软件库附带提供的A类型参数,其中素数阶q的取值为8780710799663312522437781984754049815806883199414208211028653399266475630880222957078625179422662221423155858769582317459277713367317481324925129998224791,生成元g是群 The random elements in are provided by the "pairing" operation provided by the PBC library;
[0072] 2) The cloud storage platform chooses AES as the content symmetric encryption system, including key generation algorithm Gen, encryption algorithm E′ and decryption algorithm E ′-1 , whose symmetric encryption key is a 256-bit random 0, 1 bit string;
[0073] 3) The cloud storage platform chooses the method disclosed by Tian et al. in the appendix of the ACISP 2012 paper "A short non-delegatablestrong designated verifier signature" to set the symmetric encryption and decryption operations in which both the plaintext space and the ciphertext space are in the group;
[0074]4) The cloud s...
Embodiment 2
[0123] Embodiment 2 is the same as Embodiment 1, except that the system parameters adopt other effective bilinear pairing mappings, such as other types of parameters in the PBC library.
Embodiment 3
[0125] Embodiment 3 is the same as Embodiment 1, except that other effective hash functions, such as SHA384, are adopted for the system parameters.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com