Untrusted remote transaction file secure storage system used for block chain
A secure storage, untrusted technology, used in transmission systems, computer security devices, electrical components, etc.
Active Publication Date: 2016-11-16
广州金融科技股份有限公司
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[0003] Computing and storage are the two basic tasks of computer systems. With the explosive growth of information, storage components will experience direct-connected storage based on a single server, cluster grid storage based on a LAN, and finally develop into a data grid based on a wide area network. Blockchain technology is at the very end of the current development. The intrinsic characteristics of this data storage medium include intelligent storage, storage service quality can guarantee service differentiation and performance guarantee for user applications, storage is object-oriented mass storage, and Network storage must be guaranteed to be confidential, complete and secure. The existing Internet does not have a good or convenient way to ensure the confidentiality, integrity, availability, and Non-repudiation and the reliable performance of the entire network storage system, especially the emergence of blockchain trusted computing technology in recent years, put forward higher requirements for network storage security
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[0021] At present, there are many untrusted network file systems, such as network file system NFS, network file contribution system CIFS, etc., see figure 1 , a trustless remote transaction file secure storage system for blockchains provides encrypted read and write access on these untrusted network file systems. The system uses a software daemon to intercept all transaction file access system calls and convert them into trusted transaction file access requests in turn. Using this concept, a safe transaction file sharing environment can be established without any changes to the hardware of the blockchain, and the performance of the existing network storage system will not be significantly changed. Security and very effective organization, if blockchain technology is used, the non-trusted remote transaction file secure storage system is a temporary solution.
[0022] The system includes a client with an encryption module loaded on the client, and all transaction files are encr...
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The invention provides an untrusted remote transaction file secure storage system used for a block chain. The untrusted remote transaction file secure storage system used for the block chain comprises (1) a client for uploading an encryption module and finishing transmission of all the transaction file encryption boxes; (2) a software daemon process for capturing all the transaction file access system calls and converting all the transaction file access system calls into trusted calls; (3) a user key revoking module for revoking a key of a user rapidly; (4) a plain text storage module for carrying out integrity check; (5) a time stamp module for adding a time stamp to a new transaction file; (6) a multi-transaction file backup module for restricting damage from a DOS attack which cannot be resisted as no change is carried out for a bottomed transaction file system; and (7) a public key sending module used for adding users. Although the adopted file secure storage system has the expense greater than that of a common file secure storage system and is accordingly low in speed, the security coefficient is greatly improved.
Description
technical field [0001] The invention relates to the transaction data security problem of the block chain, in particular to a non-trusted remote transaction file safe storage system of the block chain. Background technique [0002] The emergence of Bitcoin in 2009 brought a subversive result - block chain technology, block chain is a secure ledger database, composed of data blocks, users can continuously update and upgrade For financial institutions, blockchain can speed up transaction processing, reduce costs, reduce middlemen, improve market insight, and increase business transparency. [0003] Computing and storage are the two basic tasks of computer systems. With the explosive growth of information, storage components will experience direct-connected storage based on a single server, cluster grid storage based on a LAN, and finally develop into a data grid based on a wide area network. Blockchain technology is at the very end of the current development. The intrinsic cha...
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IPC IPC(8): H04L29/06G06F21/60G06F21/62G06F21/64G06F21/78
CPCG06F21/602G06F21/6218G06F21/64G06F21/78H04L63/123G06F21/60
Inventor 张丛
Owner 广州金融科技股份有限公司