Available upon request (due to length, not reproduced here). End of Paper
| Scheme | Key size | Signature size | Verification speed | Security level | |--------|----------|----------------|--------------------|----------------| | RSA-2048 | 256 B | 256 B | Slow | 112 bits | | ECDSA secp256k1 | 32 B | 64 B | Medium | 128 bits | | Ed25519 | 32 B | 64 B | Fastest | 128 bits | sfd token generator
Proof sketch: Reduces to existential unforgeability of Ed25519 under chosen message attack. Test environment: AWS c5.large (2 vCPU, 4 GB RAM) Available upon request (due to length, not reproduced here)
[3] Nakamoto, S. "Bitcoin: A peer-to-peer electronic cash system." (2008). Available upon request (due to length