Implementing Digital Signatures With Ed25519

Mahipal

Implements digital signatures using the Ed25519 algorithm (Curve25519), covering key-pair generation, signing, signature verification, and security tradeoffs versus RSA and ECDSA. Use when adding message or artifact signing and authentication-integrity checks to a system, or when advising on Ed25519 key properties and validation criteria.

Install

npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill implementing-digital-signatures-with-ed25519

npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill implementing-digital-signatures-with-ed25519 -a claude-code -g

npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill implementing-digital-signatures-with-ed25519 -a codex -g

gemini skills install https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git --path skills/implementing-digital-signatures-with-ed25519

gh skill install mukul975/Anthropic-Cybersecurity-Skills implementing-digital-signatures-with-ed25519

git clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills /tmp/mukul975__Anthropic-Cybersecurity-Skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/mukul975__Anthropic-Cybersecurity-Skills/skills/implementing-digital-signatures-with-ed25519 ~/.claude/skills/implementing-digital-signatures-with-ed25519   # Claude Code
cp -R /tmp/mukul975__Anthropic-Cybersecurity-Skills/skills/implementing-digital-signatures-with-ed25519 ~/.agents/skills/implementing-digital-signatures-with-ed25519   # Codex, Cursor, Gemini CLI, Copilot, OpenCode

Install

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