SSH Key Generator & Analyzer

Generate Ed25519 and RSA SSH key pairs, analyze public keys with fingerprint and security assessment.

[Lab Tool] [Cryptography & Encoding]

All processing happens locally in your browser. No data is sent to any server.

Key Type

Ed25519 Recommended Fast, secure, small keys

RSA 2048 Wide compatibility

RSA 4096 Maximum RSA security

Your browser does not support Ed25519 key generation. Please use RSA or generate Ed25519 keys via ssh-keygen -t ed25519 in your terminal.

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SSH Key Reference

Key Types

Ed25519: Modern, fast, 256-bit
RSA 2048: Minimum recommended
RSA 4096: Higher security margin
DSA: Deprecated, avoid
ECDSA: Curve concerns exist

Best Practices

Prefer Ed25519 for new keys
Use passphrases for private keys
Rotate keys periodically
Keep private keys secure (0600)
Use SSH agent forwarding cautiously