Homomorphic Encryption

Homomorphic encryption (HE) is a cryptographic technique that allows users to perform mathematical operations on encrypted data without decrypting it. The term "homomorphic" comes from Greek words meaning "same structure."

Here are some benefits of HE:

• Privacy: HE protects sensitive information from being exposed during computations. For example, a user can encrypt data and upload it to a cloud server, which can process it without decrypting it.
• Data accuracy: HE helps preserve data accuracy.
• Secure multiparty computation: HE supports secure multiparty computations.

Some applications of HE include:

• Secure cloud storage
• Privacy-preserving audits
• Safe data sharing
• Encrypted search capabilities
• Fraud detection
• Analyzing patient data in healthcare
• Performing computations on customer data in finance
• Enabling secure transactions

However, HE can be computationally intensive, slower, and less efficient than processing data in clear. HE schemes can also be susceptible to attack.