Vehicle Ad Data Encryption With Timed Key Release

The patent applies preliminary action by encrypting the data before it is provided to the third party. The data is encrypted in advance using a key that will only be made available at a predetermined timing, ensuring that the data cannot be accessed or misused before the intended time. This preliminary encryption action maintains data security while still allowing the data to be provided for analysis purposes.

The patent uses an intermediary approach by introducing an encryption key as a mediator between the data provider and the third party. The key acts as a controlled access mechanism that allows the third party to access and use the data only at the predetermined timing. This intermediary key enables both data usefulness and usage restriction by controlling when the data can be decrypted and accessed.

The patent applies preliminary action by pre-encrypting the data with a key that becomes available only at a predetermined timing. This ensures that even though the data is transmitted and accessible to the third party, it remains protected until the intended time when the key is provided. This preliminary encryption maintains privacy protection while enabling data accessibility.

The patent changes the state parameter of the data from encrypted to decrypted at a predetermined timing by providing the key. This parameter change (encryption state) allows the system to maintain data protection during transmission and storage, then enable access when needed. The encryption/decryption state change resolves the contradiction between accessibility and privacy protection.