| Title | ChainFS: Blockchain-Secured Cloud Storage |
| Publication Type | Conference Paper |
| Year of Publication | 2018 |
| Authors | Tang, Yuzhe, Zou, Qiwu, Chen, Ju, Li, Kai, Kamhoua, Charles A., Kwiat, Kevin, Njilla, Laurent |
| Conference Name | 2018 IEEE 11th International Conference on Cloud Computing (CLOUD) |
| Date Published | jul |
| Keywords | Amazon S3 cloud storage, blockchain, blockchain-secured cloud storage, ChainFS data file storage, ChainFS middleware, cloud computing, Cloud Security, cloud storage, cloud storage services, cloud-storage security, composability, file operation logging, file system, file-system interface, fork consistency, forking attacks, Fuses, History, middleware, middleware security, middleware system, policy-based governance, pubcrawl, Public key, resilience, Resiliency, security of data, Servers, storage management, trusted Blockchain |
| Abstract | This work presents ChainFS, a middleware system that secures cloud storage services using a minimally trusted Blockchain. ChainFS hardens the cloud-storage security against forking attacks. The ChainFS middleware exposes a file-system interface to end users. Internally, ChainFS stores data files in the cloud and exports minimal and necessary functionalities to the Blockchain for key distribution and file operation logging. We implement the ChainFS system on Ethereum and S3FS and closely integrate it with FUSE clients and Amazon S3 cloud storage. We measure the system performance and demonstrate low overhead. |
| DOI | 10.1109/CLOUD.2018.00152 |
| Citation Key | tang_chainfs_2018 |
ChainFS: Blockchain-Secured Cloud Storage