SSH keys

RSA vs ED25519

πŸ“… Apr 14, 2026

RSA vs ED25519

TL;DR:

  • Use ED25519 (if supported)
  • Unless you’re targeting legacy systems, prefer ed25519 β€” it’s more modern, secure, and faster.
  • ED25519: Modern, compact, faster β€” recommended
  • RSA: Widely compatible, older, heavier β€” use if needed for legacy support
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