Cloud Trust-Driven Hierarchical Sharing Method of Internet of Things Information Resources

Table 1

Three attack modes.

No.	Types of attacks	Attacks	Defense mechanism
1	Additional attacks	The attacker generates blocks by creating false information	By verifying the output, false blocks are detected due to asymmetric encryption key management mechanism, which makes it difficult for the interference device nodes to use the unique private key and partial blind name identification algorithm
2	Distributed denial of service attacks	The attacker exploits multiple nodes
3	Links to attack	An attacker links multiple pieces of data together using the same 1D