Black box cryptography refers to cryptographic systems or components where the internal workings, algorithms, or keys are intentionally concealed from external inspection. Users interact with the system by providing inputs and receiving outputs, but the specific computational steps or underlying logic remain opaque. This concealment is often implemented to protect proprietary intellectual property or to maintain security by obscurity.
Context
The discussion surrounding black box cryptography in digital assets often centers on the trade-off between privacy, security, and trust. While it can safeguard sensitive information or patented techniques, the lack of transparency raises concerns about potential vulnerabilities, backdoors, or malicious functionalities that cannot be independently verified. A critical future development involves the emergence of verifiable computation methods, like zero-knowledge proofs, which can attest to the correctness of a computation without revealing its private inputs or logic, potentially addressing some transparency concerns.
A new polynomial commitment scheme enables succinct zero-knowledge proofs from minimal assumptions, establishing a theoretically optimal foundation for verifiable computation.
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