CKKS Scheme

Definition ∞ The CKKS scheme, or Cheon-Kim-Kim-Song scheme, is a specific type of homomorphic encryption that permits computations on encrypted data without first decrypting it. This cryptographic method is particularly suited for operations involving real numbers or complex numbers, making it relevant for privacy-preserving machine learning and statistical analysis. It maintains data confidentiality during cloud-based processing, allowing sensitive financial data to be analyzed securely. The scheme is a significant advancement in privacy technology for computational tasks.
Context ∞ The CKKS scheme is a critical component in advancing privacy-preserving technologies within blockchain and decentralized applications. Its ability to handle approximate numbers makes it highly suitable for many practical data science applications in finance. Current discussions often focus on improving the efficiency and reducing the computational overhead of homomorphic encryption schemes for broader adoption in digital economics.