  Supply chain finance(SCF) is committed to providing credit for small and
medium-sized enterprises(SMEs) with low credit lines and small financing
scales. The resulting financial credit data and related business transaction
data are highly confidential and private. However, traditional SCF management
schemes mostly use third-party platforms and centralized designs, which cannot
achieve highly reliable secure storage and fine-grained access control. To fill
this gap, this paper designs and implements Fabric-SCF, a secure storage and
access control system based on blockchain and attribute-based access control
(\textbf{ABAC}) model. This scheme uses distributed consensus to realize data
security, traceability, and immutability. We also use smart contracts to define
system processes and access policies to ensure the efficient operation of the
system. To verify the performance of Fabric-SCF, we designed two sets of
simulation experiments. The results show that Fabric-SCF achieves dynamic and
fine-grained access control while maintaining high throughput in a simulated
real-world operating scenario.
