Towards Time-Sensitive and Verifiable Data Aggregation for Mobile Crowdsensing

Table 1

Notations.

Symbol	Description
	The secret key of the session between MCP and the ID
	The authentication key
	The random number added in ciphertext
	The shared random number between MCP and ECN
	The key generation time
	The ciphertext generation time
	The system period
	The time of the interval
	Two collision-resistant hash functions
	The verification tag
	The time of data aggregation
	The total time of data transfer and computation
	The master public key and the master secret key
	The shared message