Public Key Encryption

Definition ∞ Public key encryption is a cryptographic method employing a pair of mathematically linked keys for secure communication. One key, the public key, can be freely distributed and used for encrypting messages or verifying digital signatures. The other, the private key, must be kept secret and is used for decrypting messages or creating digital signatures. This asymmetry allows for secure data exchange without prior shared secrets. It forms the basis for many modern security protocols.
Context ∞ Public key encryption is a foundational technology for securing digital assets and blockchain networks, frequently referenced in discussions about transaction security. It enables users to securely send cryptocurrencies and verify ownership without exposing private information directly. Its robustness against computational attacks is a primary concern in the face of quantum computing advancements, driving research into post-quantum cryptography.

Payable Outsourced Decryption Secures Functional Encryption Efficiency and Incentives A close-up view reveals a sophisticated blue mechanical assembly, featuring interwoven tubular structures and metallic components. The central circular element, highlighted with silver accents, suggests a core processing unit. This intricate hardware design evokes a Decentralized Autonomous Organization DAO operational module, potentially facilitating smart contract execution or a Layer 2 scaling solution. The robust interconnections symbolize blockchain interoperability protocols and the secure data flow within a validator node architecture. Its precise engineering reflects the complex requirements for cryptographic primitive processing in a distributed ledger environment.
→Public Key Encryption
→Functional Encryption
→Cloud Storage Service

Payable Outsourced Decryption Secures Functional Encryption Efficiency and Incentives

Introducing Functional Encryption with Payable Outsourced Decryption (FEPOD), a new primitive that leverages blockchain to enable trustless, incentive-compatible payment for outsourced cryptographic computation, resolving a critical efficiency bottleneck.