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13 lines
543 B
Text
13 lines
543 B
Text
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/- The single sanctioned axiom site of this corpus (mirrors the role of
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gen/ in the *-ed25519-verified repos): SHA-256 as an opaque function.
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No properties are assumed of it — in particular NOT collision
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resistance. The soundness theorems downstream are constructive: they
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EXHIBIT two distinct preimages with equal image. Believing such a
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pair cannot be found is the reader's interpretation step, exactly as
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documented in the paper (§6, Remark 1). -/
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namespace LTLAcc
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axiom sha256 : List UInt8 → List UInt8
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end LTLAcc
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