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Research proof index

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Project-declaredLean 4.32.0

Prf implies uf cma

PRFScheme.prf_implies_uf_cma

Plain-language statement

Boneh-Shoup Theorem 6.2. PRF security implies UF-CMA security for the derived MAC: for any forger A, the constructed distinguisher macToPRFReduction prf A satisfies UF_CMA_Advantage(A) ≤ prfAdvantage(prf, B) + 1/|R|.

program verificationseparation logiccryptography

Source project: VCVio

Person-level attribution pending.

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Project-declaredLean 4.32.0

Prf Ideal Exp mac To PRFReduction le

PRFScheme.prfIdealExp_macToPRFReduction_le

Plain-language statement

In the ideal PRF experiment (random oracle), the reduction succeeds with probability at most 1/|R| , a fresh random oracle query is independent of the forger's output.

program verificationseparation logiccryptography

Source project: VCVio

Person-level attribution pending.

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