sammyboi81

Cryptography Essentials — Development skill for Claude Code

Development community

Which primitives to use, how, and what to avoid; key management and post-quantum readiness.

How to install Cryptography Essentials

Installs to ~/.claude/skills/sammyboi81-bulwark-mcp-cryptography-essentials/SKILL.md

Terminal

mkdir -p ~/.claude/skills/sammyboi81-bulwark-mcp-cryptography-essentials && curl -fsSL https://raw.githubusercontent.com/sammyboi81/bulwark-mcp/HEAD/skills/cryptography-essentials.md -o ~/.claude/skills/sammyboi81-bulwark-mcp-cryptography-essentials/SKILL.md

Restart Claude Code, or start a new session, for it to be picked up.

What Cryptography Essentials does

name: cryptography-essentials description: Which primitives to use, how, and what to avoid; key management and post-quantum readiness. tags: crypto, core, data

Don't invent crypto. Use high-level, audited libraries (libsodium, Tink, WebCrypto, language-native crypto modules).

In transit: TLS 1.3 (1.2 minimum), strong ciphers, HSTS, valid certs with automated renewal; mTLS between internal services where practical.
At rest: AES-256-GCM or ChaCha20-Poly1305 (AEAD). Never ECB; never re

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