Definition ∞ The Fast Fourier Transform is an algorithm that efficiently computes the discrete Fourier transform and its inverse. While primarily a signal processing tool, its application extends to cryptographic constructions. In certain advanced cryptographic proofs, it is utilized to speed up polynomial evaluations and multiplications.
Context ∞ The Fast Fourier Transform is gaining relevance in the blockchain domain, particularly within the construction of highly efficient zero-knowledge proofs, such as STARKs. Its computational efficiency is a key factor in reducing the time and resources required to generate and verify these complex proofs. This contributes to enhancing the scalability and privacy capabilities of various decentralized protocols, impacting transaction processing and data verification.
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