Encryption and Zero Knowledge Proof Ownership Verification
Prior to ingestion, datasets are encrypted using AES-256, a symmetric encryption algorithm with a 256-bit key, widely regarded for its security and efficiency. With a keyspace of 2^256 possible combinations, AES-256 is resistant to brute-force attacks, even with significant computational advancements.
It also withstands sophisticated cryptographic attacks, such as differential cryptanalysis, due to its robust substitution-permutation network. This ensures that data remains confidential during storage on IPFS and transit across the network, protecting sensitive information like medical records or proprietary models.
The encryption implementation uses the Galois/Counter Mode (GCM) of operation, which provides both confidentiality and authentication, protecting data from both disclosure and tampering.
Advantages of AES-GCM in the Data Marketplace
This mode offers several advantages for the Data Marketplace context:
Authenticated encryption ensures that only parties with the correct key can modify the data, preventing unauthorized alterations during storage or transit.
Parallelizable design enables efficient encryption and decryption of large datasets, crucial for AI applications that may involve gigabytes or terabytes of data.
Minimal expansion of ciphertext compared to plaintext (only by the authentication tag size) maintains storage efficiency, important when dealing with large-scale datasets.
Authenticated encryption ensures that only parties with the correct key can modify the data, preventing unauthorized alterations during storage or transit.
Parallelizable design enables efficient encryption and decryption of large datasets, crucial for AI applications that may involve gigabytes or terabytes of data.
Minimal expansion of ciphertext compared to plaintext (only by the authentication tag size) maintains storage efficiency, important when dealing with large-scale datasets.
Zero Knowledge Ownership Verification
Ownership verification leverages zk-SNARKs through the verification infrastructure, allowing providers to prove they possess the encryption key without disclosing it. In a typical scenario, a provider generates a zk-SNARK proof demonstrating knowledge of the AES-256 key for a dataset, which is then verified on-chain without revealing the key itself.
As specified in the base layer, proof generation for a standard 10,000-gate circuit requires approximately 10 seconds, with on-chain verification costing 200,000 weight equivalent. This zero-knowledge approach ensures privacy in a trustless environment, a critical feature for the marketplace.
The Proof Behind Champions
Those who compete at the edge of human precision now back the technology that defines digital truth.
