### Abstract

Authenticated data structures are a technique for outsourcing data storage and maintenance to an untrusted server. The server is required to produce an efficiently checkable and cryptographically secure proof that it carried out precisely the requested computation. Miller et al. introduced λ• (pronounced lambda auth)—a functional programming language with a built-in primitive authentication construct, which supports a wide range of user-specified authenticated data structures while guaranteeing certain correctness and security properties for all well-typed programs. We formalize λ• and prove its correctness and security properties. With Isabelle's help, we uncover and repair several mistakes in the informal proofs and lemma statements. Our findings are summarized in an ITP'19 paper.

### License

BSD License

### Topics

- Computer science/Security
- Computer science/Programming languages/Lambda calculi

### Session LambdaAuth

- Nominal2_Lemmas
- FMap_Lemmas
- Syntax
- Semantics
- Agreement
- Results

### Depends on

- Nominal 2

### Auto-related entries

- Authenticated Data Structures As Functors
- CakeML

## Cite

×

LambdaAuth-AFP

    @article{LambdaAuth-AFP,
      author  = {Matthias Brun and Dmitriy Traytel},
      title   = {Formalization of Generic Authenticated Data Structures},
      journal = {Archive of Formal Proofs},
      month   = {May},
      year    = {2019},
      note    = {\url{https://isa-afp.org/entries/LambdaAuth.html},
                 Formal proof development},
      ISSN    = {2150-914x},
    }

Download

## Download

× Download latest

Older releases:

- Sep 13, 2023 : Isabelle2023
- Oct 27, 2022 : Isabelle2022
- Dec 14, 2021 : Isabelle2021-1
- Feb 23, 2021 : Isabelle2021
- Apr 18, 2020 : Isabelle2020
- Jun 11, 2019 : Isabelle2019
- May 15, 2019 : Isabelle2018