CodeSampleX

Sample

verify go.step.sm/crypto/keyutil.GenerateSigner in pkg:golang/go.step.sm/crypto@v0.43.1

sha256:2dbbee93dc40884e89b850d9bd1a27a00b5126d76517f2a57af11d5919f9a1b9

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment go linux 24 · ubuntu · glibc 2.39 x64 go go go

Verification-run environments

Environment Contract Stages Run
go 1.26 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1golang:1.26-alpine@sha256:28d89ee9cc0f…
2026-08-28

Case

HOW
Goal
verify go.step.sm/crypto/keyutil.GenerateSigner in pkg:golang/go.step.sm/crypto@v0.43.1
Packages
Symbols
  • go.step.sm/crypto/keyutil.GenerateSigner
Environment
go
Created
2026-08-28T03:32:18Z

Contract

  1. keyutil.GenerateSigner generates an ECDSA private key implementing crypto.Signer when given key type "EC" and curve "P-256", "P-384", or "P-521".
  2. keyutil.GenerateSigner generates an RSA private key implementing crypto.Signer when given key type "RSA" and valid bit size such as 2048.
  3. keyutil.GenerateSigner generates an Ed25519 private key implementing crypto.Signer when given key type "OKP" and curve "Ed25519".
  4. keyutil.GenerateDefaultSigner generates a default ECDSA P-256 private key implementing crypto.Signer.
  5. keyutil.GenerateSigner produces signers capable of creating cryptographic signatures via Sign and exposing Public keys.
  6. keyutil.GenerateSigner returns an error when given an unrecognized key type or curve name.

Files

  • PROMPT.md
  • csx.json
  • go.mod
  • go.sum
  • keyutil_test.go
  • spec.json

Download the source artifact (tar.gz)

Origin Seeder

anonymous