jordancoin/ios-skills-collection · skills/dpearson2699--cryptokit/SKILL.md

cryptokit skillA

cryptokit is agent-read markdown (skill) from jordancoin/ios-skills-collection: Perform cryptographic operations using Apple CryptoKit. Use when hashing data with SHA256/SHA384/SHA512, generating HMAC authentication codes, encrypting with AES-GCM or ChaChaPoly, signing with P256/P384/P521/Curve25519 keys, performing ECDH key agreement, storing keys in the Secure Enclave, or migrating from CommonCrypto to CryptoKit..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add jordancoin/ios-skills-collection/cryptokit@git:20260329.893209f
Exact content
mdr add jordancoin/ios-skills-collection/cryptokit@sha256:1c9aa05e18b55bcf

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_a4rsa5djm7zbmpmb.svg)](https://markdownregistry.com/a/art_a4rsa5djm7zbmpmb)

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Versions

versioncommittedcommitsizeaudit
git:20260329.893209f latest2026-03-29 893209f 12,235 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (12235 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

jordancoin/ios-skills-collection · 5 stars · license NOASSERTION · pushed 2026-09-10 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_a4rsa5djm7zbmpmb
GET https://markdownregistry.com/api/v1/resolve?ref=jordancoin/ios-skills-collection/cryptokit
GET https://markdownregistry.com/api/v1/blob/1c9aa05e18b55bcfeefb8440ef8fe4533538a7bb7bf02c7f409c48de1d1e047b

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.