Agent skill

crypto-analyzer

Cryptographic implementation analysis and validation for encryption algorithms, key sizes, and certificate management

a5c-aigithub.com/a5c-aiGitHub ↗
claude-codecodexcan modify filesMIT
Install
npx skills add a5c-ai/babysitter --skill crypto-analyzer --agent claude-code

Same command for any agent — swap --agent for codex, cursor, copilot.

Facts
Files in the skill folder: 2
SKILL.md size: 7 KB
Bundled scripts: none
Allowed tools: -Bash-Read-Write-Glob-Grep-WebFetch
Path: library/specializations/security-compliance/skills/crypto-analyzer/SKILL.md
Open the folder on GitHub →
Where it comes from
Stars: 1,642
Language: JavaScript

Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.

From the SKILL.md

# Crypto Analyzer Skill ## Purpose Analyze and validate cryptographic implementations to ensure proper algorithm usage, key sizes, certificate validity, and compliance with cryptographic best practices and standards. ## Capabilities ### Encryption Implementation Analysis - Analyze symmetric encryption usage (AES, ChaCha20) - Review asymmetric encryption implementations (RSA, ECDSA) - Check encryption mode selection (GCM, CBC, CTR) - Validate initialization vector (IV) handling - Verify padding schemes - Identify insecure encryption patterns ### Algorithm Strength Validation - Check algorithm deprecation status - Validate against NIST recommendations - Compare with FIPS 140-3 requirements - Assess quantum resistance readiness - Flag weak or deprecated algorithms - Recommend algorithm upgrades ### Key Size Verification - Validate RSA key lengths (minimum 2048-bit) - Check ECC curve selections - Verify symmetric key sizes - Assess key derivation functions - Check PBKDF2/scrypt/bcrypt parameters - Validate key stretching implementations ### Deprecated Algorithm Detection - Identify MD5 and SHA-1 usage - Flag DES and 3DES usage - Detect RC4 stream cipher - Find weak random number genera

What's inside
Steps it walks through
  1. Purpose
  2. Capabilities
  3. Encryption Implementation Analysis
  4. Algorithm Strength Validation
  5. Key Size Verification
  6. Deprecated Algorithm Detection
  7. Certificate Analysis
  8. Cryptographic Recommendations
  9. Algorithm Assessment
  10. Symmetric Encryption
  11. Asymmetric Encryption
  12. Hash Functions
  13. Integrations
  14. Target Processes
Ships with 1 file
  • README.md
More from babysitter
All skills →
About this skill
What does the crypto-analyzer skill do?

Cryptographic implementation analysis and validation for encryption algorithms, key sizes, and certificate management

How do I install it?

Run `npx skills add a5c-ai/babysitter --skill crypto-analyzer --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.

Where does this skill come from?

From a5c-ai/babysitter, a repository with 1,642 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.

Is a popular skill a good skill?

Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.

Keep going