CodeSampleX

Exemplo

ring 0.17.14: ring::digest::Algorithm

Amostra verificada para cargo ring 0.17.14: ring::digest::Algorithm. O contrato rodou em rust 1 · linux alpine/x64 · docker e passou.

sha256:f1218bdb09d683e702685be23caa9318309017bad748005cbf50b85e4a02c283

Esta rede oferece uma coisa: uma amostra que compila. Ela a executou em um sandbox e guardou o recibo assinado. Não classifica nem garante nada — se o mesmo código compila onde você está, ela não mediu. Quantas chaves de assinatura distintas enviaram um recibo de contrato aprovado. Uma é só o autor; mais de uma significa que outra pessoa também o compilou. Uma chave é gerada por conta própria e não tem identidade registrada por trás, então conta chaves, não pessoas. MIT-0

Evidência de execução

O ambiente declarado e as execuções assinadas ficam separados, para você ver exatamente o que esta amostra executou e onde.

Base da evidência
Contrato assinado aprovado
Recibos de verificação
1
Chaves de assinatura que o compilaram
1
Ambiente declarado linux · alpine · musl x64 cargo

Ambientes das execuções de verificação

Ambiente Contrato Etapas Execução
rust 1 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · cargo@1rust:1-alpine@sha256:a10e64dd139b…		 2026-09-20

Caso

HOW
Objetivo
verify ring::digest::Algorithm in pkg:cargo/ring@0.17.14
Pacotes
Símbolos
  • ring::digest::Algorithm
Criado
2026-09-20T17:04:47Z

Contrato

  1. Algorithm output_len, block_len, and chaining_len report standard digest dimensions for SHA256, SHA384, SHA512, SHA512_256, and SHA1_FOR_LEGACY_USE_ONLY
  2. Algorithm implements PartialEq and Eq distinguishing distinct algorithms and equating identical algorithm references
  3. Algorithm implements Debug formatting the algorithm identifier
  4. digest and Context accept an Algorithm reference to calculate matching digests of length algorithm.output_len()

Arquivos

  • Cargo.lock
  • Cargo.toml
  • PROMPT.md
  • csx.json
  • spec.json
  • src/lib.rs
  • test/contract.rs

Baixar o artefato de código-fonte (tar.gz)

Código-fonte

Cargo.lock
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4

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name = "cc"
version = "1.4.7"
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checksum = "54413ede23c2daf518f35156dfde027feb2374004d63bd497f983c8db9c0e313"
dependencies = [
 "find-msvc-tools",
 "shlex",
]

[[package]]
name = "cfg-if"
version = "1.0.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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dependencies = [
 "cfg-if",
 "libc",
 "wasi",
]

[[package]]
name = "libc"
version = "0.2.189"
source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
name = "ring"
version = "0.17.14"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a4689e6c2294d81e88dc6261c768b63bc4fcdb852be6d1352498b114f61383b7"
dependencies = [
 "cc",
 "cfg-if",
 "getrandom",
 "libc",
 "untrusted",
 "windows-sys",
]

[[package]]
name = "sample-ring-digest-algorithm"
version = "1.0.0"
dependencies = [
 "ring",
]

[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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Cargo.toml
[package]
name = "sample-ring-digest-algorithm"
version = "1.0.0"
edition = "2021"
publish = false

[dependencies]
ring = "=0.17.14"

[[bin]]
name = "contract"
path = "test/contract.rs"
PROMPT.md
Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify ring::digest::Algorithm in pkg:cargo/ring@0.17.14
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:cargo/ring@0.17.14
Demonstrate these symbols/APIs:
  - ring::digest::Algorithm

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.
csx.json
{"case":{"caseId":"case:sha256:52e0c69e3a39cdccbe9244badae09781e36247e2ad80b0ebf402d0dedd53750a","contract":["Algorithm output_len, block_len, and chaining_len report standard digest dimensions for SHA256, SHA384, SHA512, SHA512_256, and SHA1_FOR_LEGACY_USE_ONLY","Algorithm implements PartialEq and Eq distinguishing distinct algorithms and equating identical algorithm references","Algorithm implements Debug formatting the algorithm identifier","digest and Context accept an Algorithm reference to calculate matching digests of length algorithm.output_len()"],"goal":"verify ring::digest::Algorithm in pkg:cargo/ring@0.17.14","kind":"HOW","packages":["pkg:cargo/ring@0.17.14"],"schemaVersion":1,"symbols":["ring::digest::Algorithm"]},"contractCommand":["cargo","run","--offline"],"environment":{"arch":"x64","distro":"alpine","ecosystem":"cargo","libc":"musl","os":"linux","packageManager":"cargo","schemaVersion":1},"license":"MIT-0","packages":["pkg:cargo/ring@0.17.14"],"schemaVersion":1,"subject":"pkg:cargo/ring@0.17.14","symbols":["ring::digest::Algorithm"],"verifierAdapter":"cargo@1"}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify ring::digest::Algorithm in pkg:cargo/ring@0.17.14",
  "kind": "HOW",
  "packages": [
    "pkg:cargo/ring@0.17.14"
  ],
  "symbols": [
    "ring::digest::Algorithm"
  ]
}
src/lib.rs
//! Clean-room verification sample for ring::digest::Algorithm.

pub use ring::digest::{
    Algorithm, Context, Digest, SHA1_FOR_LEGACY_USE_ONLY, SHA256, SHA384, SHA512, SHA512_256,
};
test/contract.rs
use ring::digest::{
    self, Algorithm, Context, SHA1_FOR_LEGACY_USE_ONLY, SHA256, SHA384, SHA512, SHA512_256,
};

fn main() {
    // 1. Algorithm::output_len, block_len, and chaining_len return standard digest dimensions
    assert_eq!(SHA256.output_len(), 32);
    assert_eq!(SHA256.block_len(), 64);
    assert_eq!(SHA256.chaining_len(), 32);

    assert_eq!(SHA384.output_len(), 48);
    assert_eq!(SHA384.block_len(), 128);
    assert_eq!(SHA384.chaining_len(), 64);

    assert_eq!(SHA512.output_len(), 64);
    assert_eq!(SHA512.block_len(), 128);
    assert_eq!(SHA512.chaining_len(), 64);

    assert_eq!(SHA512_256.output_len(), 32);
    assert_eq!(SHA512_256.block_len(), 128);
    assert_eq!(SHA512_256.chaining_len(), 64);

    assert_eq!(SHA1_FOR_LEGACY_USE_ONLY.output_len(), 20);
    assert_eq!(SHA1_FOR_LEGACY_USE_ONLY.block_len(), 64);
    assert_eq!(SHA1_FOR_LEGACY_USE_ONLY.chaining_len(), 20);

    // 2. Algorithm implements PartialEq and Eq distinguishing distinct algorithms
    let alg_ref_1: &Algorithm = &SHA256;
    let alg_ref_2: &Algorithm = &SHA256;
    assert_eq!(alg_ref_1, alg_ref_2);
    assert_ne!(alg_ref_1, &SHA384);
    assert_ne!(&SHA512, &SHA512_256);
    assert_ne!(&SHA256, &SHA1_FOR_LEGACY_USE_ONLY);

    // 3. Algorithm implements Debug formatting the algorithm identifier
    assert_eq!(format!("{:?}", &SHA256), "SHA256");
    assert_eq!(format!("{:?}", &SHA384), "SHA384");
    assert_eq!(format!("{:?}", &SHA512), "SHA512");
    assert_eq!(format!("{:?}", &SHA512_256), "SHA512_256");
    assert_eq!(format!("{:?}", &SHA1_FOR_LEGACY_USE_ONLY), "SHA1");

    // 4. digest and Context accept an Algorithm reference to calculate matching digests
    let data = b"The quick brown fox jumps over the lazy dog";
    let algorithms: [&Algorithm; 5] = [
        &SHA256,
        &SHA384,
        &SHA512,
        &SHA512_256,
        &SHA1_FOR_LEGACY_USE_ONLY,
    ];

    for &alg in &algorithms {
        let one_shot = digest::digest(alg, data);
        assert_eq!(one_shot.algorithm(), alg);
        assert_eq!(one_shot.as_ref().len(), alg.output_len());

        let mut ctx = Context::new(alg);
        assert_eq!(ctx.algorithm(), alg);
        ctx.update(&data[..15]);
        ctx.update(&data[15..]);
        let multi_step = ctx.finish();
        assert_eq!(multi_step.algorithm(), alg);
        assert_eq!(one_shot.as_ref(), multi_step.as_ref());
    }

    println!("All ring::digest::Algorithm contract assertions passed successfully.");
}

Seeder de origem

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