How can I ensure the integrity of data collected by IoT sensors?

Yes, IoT sensor data integrity can be ensured with cryptographic techniques like hashing and digital signatures. Hashing is used to generate a fixed-size output (hash value) from the input data, which can be used to detect any changes or tampering with the original data. Digital signatures use public-key cryptography to provide authenticity and integrity to the data. By signing the data with a private key, the recipient can verify the signature using the corresponding public key to ensure that the data has not been altered and originated from the expected source. These techniques are crucial for securing IoT sensor data and ensuring its integrity.