|
0 Feature |
1 Certain.id |
3 Atala PRISM |
| Cardano | ✓ | ✓ |
| Smart contracts | ✓ | ✗ |
| Worldwide | ✓ | ✓ |
| Confirm residence | ✓ | ✗ |
| Confirm accredited investor status | ✓ | ✗ |
| Self-sovereign | ✓ | ✓ |
| Smart contract authorization | ✓ | ✗ |
| Cryptographic authentication | ✓ | ✓ |
| Private key revocation and cycling | ✓ | ✓ |
| Private key formats | Multiple | ECDSA |
Atala PRISM DIDs allow to associate EcDSA public key with a permanent identifier. The identifier is standardized as PRISM DID by W3C. This allows one to upgrade the public key in case it needs to be cycled or revoked, while maintaining the same identifier.