Menu

Individual skill

reviewing-cryptography

0upvotes

Review cryptographic implementations and protocol usage for misuse — weak primitives, nonce and IV handling, key management, authentication of ciphertext, randomness, timing side channels, TLS and JWT configuration, and password storage. Use when auditing code that encrypts, signs, hashes, or authenticates, or when assessing TLS and token configurations.

secskills-core/skills/reviewing-cryptography/SKILL.md

Read pinned source

Source commit ca53957bcd8e3b83b5d4d190bb3ad008a4f15c84

What was checked

Matches the observed repository HEAD
Yes
Scanner rules are current
Yes
Repository scan complete
No
Skill scan complete
No
Observed behavior
Network or broad shell
Last checked
Nov 11, 2026

These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.

Install this skill

Choose an agent in your Stack or copy a command below. Commands fetch the pinned commit and copy only this skill directory. Existing destinations are refused. Copying a command does not install anything.

An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.

Repository context

Repository stars (not skill ratings)
188
Repository last updated
Sep 4, 2026
License
MIT

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

Files and excerpt

File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.

Browse files
Read excerpt

# Reviewing Cryptography

Almost no real system is broken by cryptanalysis. They are broken by misuse:
a reused nonce, unauthenticated ciphertext, a comparison that returns early,
a key checked into git. Review for misuse, and leave primitive design to
cryptographers.

## When to Use

- Auditing code that encrypts, decrypts, signs, verifies, or hashes
- Reviewing key management, rotation, and storage
- Assessing TLS/mTLS configuration and certificate validation
- Reviewing JWT, session token, and API signature schemes
- Checking password and secret storage
Back to top