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ECC
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ECC SSL certificates-elliptic curve modern encryption
ECC certificates offer stronger encryption with smaller key sizes than RSA. Support ECDSA signing.
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ECC (Elliptic Curve Cryptography) is modern encryption that provides equivalent security to RSA with much smaller key sizes, resulting in faster performance and smaller certificates.
ECC vs RSA
| Feature | ECC | RSA |
|---|---|---|
| Key size for same security | 256 bits | 2048-4096 bits |
| Performance | Faster | Slower |
| Certificate size | Smaller | Larger |
| Browser support | 95%+ modern browsers | 100% |
Performance benefits
- Faster handshake: ECC is 10-20% faster than RSA
- Lower bandwidth: Smaller certificates
- Better for mobile: Reduced CPU/battery usage
Browser support
ECC is supported by:
- Chrome/Edge (all versions)
- Firefox (all versions)
- Safari (all versions)
- IE 11+ (with limited curves)
Use both ECC and RSA
Modern servers support dual certificates: install both ECC and RSA for maximum compatibility and performance.
Related: SSL errors | CSR generation
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