Idealized Models

Statements tagged with the idealized-models area. This is a generated view, not a home directory – a statement can belong to several areas at once. See all statements for the full index, or the schema for what each column means.

Status Statement Tags
Split-source decomposition
Open for a query budget of two or more: whether a random oracle decomposes into bit-fixing mixtures when the advice is produced by two sources that never communicate. Proved and tight at q = 0, and proved at q = 1 under an extra hypothesis. 4 open
romtight-boundresearch-opennew-idea (ai)
Simon-oracle amplification, strong version
Open. The version without the collision finder is known only when the one-way function is itself a random oracle; with an arbitrary one-way function, with or without the collision finder, nothing is established. 5 open
otherlower-boundresearch-opennew-idea (ai)
No round-optimal pairing-free blind signature
Open for a polynomial query budget. The impossibility is proved when User_2 and Verify together make O(log lambda) random-oracle queries, including when oracle outputs contain group elements; the superpolynomial message space hypothesis is retained. 5 open
ggmimpossibilityresearch-openadaptation (ai)
Computationally unique VDFs in the ROM
Open under computational uniqueness, which is the notion the definition of a VDF actually requires. Settled for perfect uniqueness with perfect completeness, and settled in the tight regime even with no uniqueness assumption at all. 5 open
romimpossibilityresearch-opennew-idea (ai)
Three moves from DL, ROM only
Open: three moves, black-box in the group, ROM only, from DL alone. Three moves is achieved from DDH in the ROM and from DL in AGM+ROM; four moves is achieved from DL in the ROM. 5 open
romassumptionresearch-opennew-idea (ai)
No matching items