Limitations of HE
HE is a powerful cryptographic technique that allows computations to be performed on encrypted data without the need for decryption. While HE has several benefits, it also has some limitations, which we’ll take a look at now:
- Performance: HE is computationally intensive and can be slow, especially when working with large amounts of data. The overhead associated with encryption and decryption can significantly impact the performance of the system.
- Limited functionality: HE is still a developing field, and current implementations have limited functionality. Complex computations are often difficult to perform using HE, and not all types of computations can be performed using current HE techniques.
- Key management: HE requires the management of large cryptographic keys, which can be challenging, especially in distributed systems. The key management problem becomes more complex as the number of parties involved in the computation increases.
- Security...